From 632e27e8c5a2f6fec1a90dcb01cf8d848a5aee90 Mon Sep 17 00:00:00 2001 From: David Hook Date: Mon, 16 Nov 2015 14:29:26 +1100 Subject: FIPS DRBG digest/hmac/CTR --- crypto/src/crypto/IEntropySource.cs | 29 ++ crypto/src/crypto/IEntropySourceProvider.cs | 19 + crypto/src/crypto/prng/CtrSP800Drbg.cs | 495 +++++++++++++++++++ crypto/src/crypto/prng/HMacSP800Drbg.cs | 196 ++++++++ crypto/src/crypto/prng/HashSP800Drbg.cs | 295 ++++++++++++ crypto/src/crypto/prng/SP80090Drbg.cs | 33 ++ crypto/src/crypto/prng/Utils.cs | 103 ++++ crypto/src/crypto/prng/drbg/CtrSP800Drbg.cs | 494 +++++++++++++++++++ crypto/src/crypto/prng/drbg/HMacSP800Drbg.cs | 196 ++++++++ crypto/src/crypto/prng/drbg/HashSP800Drbg.cs | 295 ++++++++++++ crypto/src/crypto/prng/drbg/SP80090Drbg.cs | 33 ++ crypto/src/crypto/prng/drbg/Utils.cs | 103 ++++ crypto/test/src/crypto/prng/test/CtrDrbgTest.cs | 524 +++++++++++++++++++++ crypto/test/src/crypto/prng/test/DRGBTestVector.cs | 129 +++++ crypto/test/src/crypto/prng/test/HMacDrbgTest.cs | 511 ++++++++++++++++++++ crypto/test/src/crypto/prng/test/HashDrbgTest.cs | 471 ++++++++++++++++++ .../crypto/prng/test/TestEntropySourceProvider.cs | 64 +++ 17 files changed, 3990 insertions(+) create mode 100644 crypto/src/crypto/IEntropySource.cs create mode 100644 crypto/src/crypto/IEntropySourceProvider.cs create mode 100644 crypto/src/crypto/prng/CtrSP800Drbg.cs create mode 100644 crypto/src/crypto/prng/HMacSP800Drbg.cs create mode 100644 crypto/src/crypto/prng/HashSP800Drbg.cs create mode 100644 crypto/src/crypto/prng/SP80090Drbg.cs create mode 100644 crypto/src/crypto/prng/Utils.cs create mode 100644 crypto/src/crypto/prng/drbg/CtrSP800Drbg.cs create mode 100644 crypto/src/crypto/prng/drbg/HMacSP800Drbg.cs create mode 100644 crypto/src/crypto/prng/drbg/HashSP800Drbg.cs create mode 100644 crypto/src/crypto/prng/drbg/SP80090Drbg.cs create mode 100644 crypto/src/crypto/prng/drbg/Utils.cs create mode 100644 crypto/test/src/crypto/prng/test/CtrDrbgTest.cs create mode 100644 crypto/test/src/crypto/prng/test/DRGBTestVector.cs create mode 100644 crypto/test/src/crypto/prng/test/HMacDrbgTest.cs create mode 100644 crypto/test/src/crypto/prng/test/HashDrbgTest.cs create mode 100644 crypto/test/src/crypto/prng/test/TestEntropySourceProvider.cs diff --git a/crypto/src/crypto/IEntropySource.cs b/crypto/src/crypto/IEntropySource.cs new file mode 100644 index 000000000..33ce1b801 --- /dev/null +++ b/crypto/src/crypto/IEntropySource.cs @@ -0,0 +1,29 @@ +using System; + +namespace Org.BouncyCastle.Crypto +{ + /// + /// Base interface describing an entropy source for a DRGB. + /// + public interface IEntropySource + { + /// + /// Return whether or not this entropy source is regarded as prediction resistant. + /// + /// true if this instance is prediction resistant; otherwise, false. + bool IsPredictionResistant { get; } + + /// + /// Return a byte array of entropy. + /// + /// The entropy bytes. + byte[] GetEntropy(); + + /// + /// Return the number of bits of entropy this source can produce. + /// + /// The size, in bits, of the return value of getEntropy. + int EntropySize { get; } + } +} + diff --git a/crypto/src/crypto/IEntropySourceProvider.cs b/crypto/src/crypto/IEntropySourceProvider.cs new file mode 100644 index 000000000..990c6497b --- /dev/null +++ b/crypto/src/crypto/IEntropySourceProvider.cs @@ -0,0 +1,19 @@ +using System; +using System.Collections.Generic; +using System.Text; + +namespace Org.BouncyCastle.Crypto +{ + /// + /// Base interface describing a provider of entropy sources. + /// + public interface IEntropySourceProvider + { + /// + /// Return an entropy source providing a block of entropy. + /// + /// The size of the block of entropy required. + /// An entropy source providing bitsRequired blocks of entropy. + IEntropySource Get(int bitsRequired); + } +} diff --git a/crypto/src/crypto/prng/CtrSP800Drbg.cs b/crypto/src/crypto/prng/CtrSP800Drbg.cs new file mode 100644 index 000000000..089cd17cd --- /dev/null +++ b/crypto/src/crypto/prng/CtrSP800Drbg.cs @@ -0,0 +1,495 @@ +using System; + +using Org.BouncyCastle.Crypto.Parameters; +using Org.BouncyCastle.Utilities; +using Org.BouncyCastle.Utilities.Encoders; + +namespace Org.BouncyCastle.Crypto.Prng.Drbg +{ + /** + * A SP800-90A CTR DRBG. + */ + public class CtrSP800Drbg: SP80090Drbg + { + private static readonly long TDEA_RESEED_MAX = 1L << (32 - 1); + private static readonly long AES_RESEED_MAX = 1L << (48 - 1); + private static readonly int TDEA_MAX_BITS_REQUEST = 1 << (13 - 1); + private static readonly int AES_MAX_BITS_REQUEST = 1 << (19 - 1); + + private IEntropySource _entropySource; + private IBlockCipher _engine; + private int _keySizeInBits; + private int _seedLength; + private int _securityStrength; + + // internal state + private byte[] _Key; + private byte[] _V; + private long _reseedCounter = 0; + private bool _isTDEA = false; + + /** + * Construct a SP800-90A CTR DRBG. + *

+ * Minimum entropy requirement is the security strength requested. + *

+ * @param engine underlying block cipher to use to support DRBG + * @param keySizeInBits size of the key to use with the block cipher. + * @param securityStrength security strength required (in bits) + * @param entropySource source of entropy to use for seeding/reseeding. + * @param personalizationString personalization string to distinguish this DRBG (may be null). + * @param nonce nonce to further distinguish this DRBG (may be null). + */ + public CtrSP800Drbg(IBlockCipher engine, int keySizeInBits, int securityStrength, IEntropySource entropySource, byte[] personalizationString, byte[] nonce) + { + _entropySource = entropySource; + _engine = engine; + + _keySizeInBits = keySizeInBits; + _securityStrength = securityStrength; + _seedLength = keySizeInBits + engine.GetBlockSize() * 8; + _isTDEA = isTDEA(engine); + + if (securityStrength > 256) + { + throw new ArgumentException("Requested security strength is not supported by the derivation function"); + } + + if (getMaxSecurityStrength(engine, keySizeInBits) < securityStrength) + { + throw new ArgumentException("Requested security strength is not supported by block cipher and key size"); + } + + if (entropySource.EntropySize < securityStrength) + { + throw new ArgumentException("Not enough entropy for security strength required"); + } + + byte[] entropy = getEntropy(); // Get_entropy_input + + CTR_DRBG_Instantiate_algorithm(entropy, nonce, personalizationString); + } + + private void CTR_DRBG_Instantiate_algorithm(byte[] entropy, byte[] nonce, + byte[] personalisationString) + { + byte[] seedMaterial = Arrays.Concatenate(entropy, nonce, personalisationString); + byte[] seed = Block_Cipher_df(seedMaterial, _seedLength); + + int outlen = _engine.GetBlockSize(); + + _Key = new byte[(_keySizeInBits + 7) / 8]; + _V = new byte[outlen]; + + // _Key & _V are modified by this call + CTR_DRBG_Update(seed, _Key, _V); + + _reseedCounter = 1; + } + + private void CTR_DRBG_Update(byte[] seed, byte[] key, byte[] v) + { + byte[] temp = new byte[seed.Length]; + byte[] outputBlock = new byte[_engine.GetBlockSize()]; + + int i=0; + int outLen = _engine.GetBlockSize(); + + _engine.Init(true, new KeyParameter(expandKey(key))); + while (i*outLen < seed.Length) + { + addOneTo(v); + _engine.ProcessBlock(v, 0, outputBlock, 0); + + int bytesToCopy = ((temp.Length - i * outLen) > outLen) + ? outLen : (temp.Length - i * outLen); + + Array.Copy(outputBlock, 0, temp, i * outLen, bytesToCopy); + ++i; + } + + XOR(temp, seed, temp, 0); + + Array.Copy(temp, 0, key, 0, key.Length); + Array.Copy(temp, key.Length, v, 0, v.Length); + } + + private void CTR_DRBG_Reseed_algorithm(byte[] additionalInput) + { + byte[] seedMaterial = Arrays.Concatenate(getEntropy(), additionalInput); + + seedMaterial = Block_Cipher_df(seedMaterial, _seedLength); + + CTR_DRBG_Update(seedMaterial, _Key, _V); + + _reseedCounter = 1; + } + + private void XOR(byte[] output, byte[] a, byte[] b, int bOff) + { + for (int i=0; i< output.Length; i++) + { + output[i] = (byte)(a[i] ^ b[i+bOff]); + } + } + + private void addOneTo(byte[] longer) + { + int carry = 1; + for (int i = 1; i <= longer.Length; i++) // warning + { + int res = (longer[longer.Length - i] & 0xff) + carry; + carry = (res > 0xff) ? 1 : 0; + longer[longer.Length - i] = (byte)res; + } + } + + private byte[] getEntropy() + { + byte[] entropy = _entropySource.GetEntropy(); + if (entropy.Length < (_securityStrength + 7) / 8) + { + throw new InvalidOperationException("Insufficient entropy provided by entropy source"); + } + return entropy; + } + + // -- Internal state migration --- + + private static readonly byte[] K_BITS = Hex.Decode("000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F"); + + // 1. If (number_of_bits_to_return > max_number_of_bits), then return an + // ERROR_FLAG. + // 2. L = len (input_string)/8. + // 3. N = number_of_bits_to_return/8. + // Comment: L is the bitstring represention of + // the integer resulting from len (input_string)/8. + // L shall be represented as a 32-bit integer. + // + // Comment : N is the bitstring represention of + // the integer resulting from + // number_of_bits_to_return/8. N shall be + // represented as a 32-bit integer. + // + // 4. S = L || N || input_string || 0x80. + // 5. While (len (S) mod outlen) + // Comment : Pad S with zeros, if necessary. + // 0, S = S || 0x00. + // + // Comment : Compute the starting value. + // 6. temp = the Null string. + // 7. i = 0. + // 8. K = Leftmost keylen bits of 0x00010203...1D1E1F. + // 9. While len (temp) < keylen + outlen, do + // + // IV = i || 0outlen - len (i). + // + // 9.1 + // + // temp = temp || BCC (K, (IV || S)). + // + // 9.2 + // + // i = i + 1. + // + // 9.3 + // + // Comment : i shall be represented as a 32-bit + // integer, i.e., len (i) = 32. + // + // Comment: The 32-bit integer represenation of + // i is padded with zeros to outlen bits. + // + // Comment: Compute the requested number of + // bits. + // + // 10. K = Leftmost keylen bits of temp. + // + // 11. X = Next outlen bits of temp. + // + // 12. temp = the Null string. + // + // 13. While len (temp) < number_of_bits_to_return, do + // + // 13.1 X = Block_Encrypt (K, X). + // + // 13.2 temp = temp || X. + // + // 14. requested_bits = Leftmost number_of_bits_to_return of temp. + // + // 15. Return SUCCESS and requested_bits. + private byte[] Block_Cipher_df(byte[] inputString, int bitLength) + { + int outLen = _engine.GetBlockSize(); + int L = inputString.Length; // already in bytes + int N = bitLength / 8; + // 4 S = L || N || inputstring || 0x80 + int sLen = 4 + 4 + L + 1; + int blockLen = ((sLen + outLen - 1) / outLen) * outLen; + byte[] S = new byte[blockLen]; + copyIntToByteArray(S, L, 0); + copyIntToByteArray(S, N, 4); + Array.Copy(inputString, 0, S, 8, L); + S[8 + L] = (byte)0x80; + // S already padded with zeros + + byte[] temp = new byte[_keySizeInBits / 8 + outLen]; + byte[] bccOut = new byte[outLen]; + + byte[] IV = new byte[outLen]; + + int i = 0; + byte[] K = new byte[_keySizeInBits / 8]; + Array.Copy(K_BITS, 0, K, 0, K.Length); + + while (i*outLen*8 < _keySizeInBits + outLen *8) + { + copyIntToByteArray(IV, i, 0); + BCC(bccOut, K, IV, S); + + int bytesToCopy = ((temp.Length - i * outLen) > outLen) + ? outLen + : (temp.Length - i * outLen); + + Array.Copy(bccOut, 0, temp, i * outLen, bytesToCopy); + ++i; + } + + byte[] X = new byte[outLen]; + Array.Copy(temp, 0, K, 0, K.Length); + Array.Copy(temp, K.Length, X, 0, X.Length); + + temp = new byte[bitLength / 2]; + + i = 0; + _engine.Init(true, new KeyParameter(expandKey(K))); + + while (i * outLen < temp.Length) + { + _engine.ProcessBlock(X, 0, X, 0); + + int bytesToCopy = ((temp.Length - i * outLen) > outLen) + ? outLen + : (temp.Length - i * outLen); + + Array.Copy(X, 0, temp, i * outLen, bytesToCopy); + i++; + } + + return temp; + } + + /* + * 1. chaining_value = 0^outlen + * . Comment: Set the first chaining value to outlen zeros. + * 2. n = len (data)/outlen. + * 3. Starting with the leftmost bits of data, split the data into n blocks of outlen bits + * each, forming block(1) to block(n). + * 4. For i = 1 to n do + * 4.1 input_block = chaining_value ^ block(i) . + * 4.2 chaining_value = Block_Encrypt (Key, input_block). + * 5. output_block = chaining_value. + * 6. Return output_block. + */ + private void BCC(byte[] bccOut, byte[] k, byte[] iV, byte[] data) + { + int outlen = _engine.GetBlockSize(); + byte[] chainingValue = new byte[outlen]; // initial values = 0 + int n = data.Length / outlen; + + byte[] inputBlock = new byte[outlen]; + + _engine.Init(true, new KeyParameter(expandKey(k))); + + _engine.ProcessBlock(iV, 0, chainingValue, 0); + + for (int i = 0; i < n; i++) + { + XOR(inputBlock, chainingValue, data, i*outlen); + _engine.ProcessBlock(inputBlock, 0, chainingValue, 0); + } + + Array.Copy(chainingValue, 0, bccOut, 0, bccOut.Length); + } + + private void copyIntToByteArray(byte[] buf, int value, int offSet) + { + buf[offSet + 0] = ((byte)(value >> 24)); + buf[offSet + 1] = ((byte)(value >> 16)); + buf[offSet + 2] = ((byte)(value >> 8)); + buf[offSet + 3] = ((byte)(value)); + } + + /** + * Return the block size (in bits) of the DRBG. + * + * @return the number of bits produced on each internal round of the DRBG. + */ + public int BlockSize + { + get { + return _V.Length * 8; + } + } + + /** + * Populate a passed in array with random data. + * + * @param output output array for generated bits. + * @param additionalInput additional input to be added to the DRBG in this step. + * @param predictionResistant true if a reseed should be forced, false otherwise. + * + * @return number of bits generated, -1 if a reseed required. + */ + public int Generate(byte[] output, byte[] additionalInput, bool predictionResistant) + { + if (_isTDEA) + { + if (_reseedCounter > TDEA_RESEED_MAX) + { + return -1; + } + + if (Utils.isTooLarge(output, TDEA_MAX_BITS_REQUEST / 8)) + { + throw new ArgumentException("Number of bits per request limited to " + TDEA_MAX_BITS_REQUEST); + } + } + else + { + if (_reseedCounter > AES_RESEED_MAX) + { + return -1; + } + + if (Utils.isTooLarge(output, AES_MAX_BITS_REQUEST / 8)) + { + throw new ArgumentException("Number of bits per request limited to " + AES_MAX_BITS_REQUEST); + } + } + + if (predictionResistant) + { + CTR_DRBG_Reseed_algorithm(additionalInput); + additionalInput = null; + } + + if (additionalInput != null) + { + additionalInput = Block_Cipher_df(additionalInput, _seedLength); + CTR_DRBG_Update(additionalInput, _Key, _V); + } + else + { + additionalInput = new byte[_seedLength]; + } + + byte[] tmp = new byte[_V.Length]; + + _engine.Init(true, new KeyParameter(expandKey(_Key))); + + for (int i = 0; i <= output.Length / tmp.Length; i++) + { + int bytesToCopy = ((output.Length - i * tmp.Length) > tmp.Length) + ? tmp.Length + : (output.Length - i * _V.Length); + + if (bytesToCopy != 0) + { + addOneTo(_V); + + _engine.ProcessBlock(_V, 0, tmp, 0); + + Array.Copy(tmp, 0, output, i * tmp.Length, bytesToCopy); + } + } + + CTR_DRBG_Update(additionalInput, _Key, _V); + + _reseedCounter++; + + return output.Length * 8; + } + + /** + * Reseed the DRBG. + * + * @param additionalInput additional input to be added to the DRBG in this step. + */ + public void Reseed(byte[] additionalInput) + { + CTR_DRBG_Reseed_algorithm(additionalInput); + } + + private bool isTDEA(IBlockCipher cipher) + { + return cipher.AlgorithmName.Equals("DESede") || cipher.AlgorithmName.Equals("TDEA"); + } + + private int getMaxSecurityStrength(IBlockCipher cipher, int keySizeInBits) + { + if (isTDEA(cipher) && keySizeInBits == 168) + { + return 112; + } + if (cipher.AlgorithmName.Equals("AES")) + { + return keySizeInBits; + } + + return -1; + } + + byte[] expandKey(byte[] key) + { + if (_isTDEA) + { + // expand key to 192 bits. + byte[] tmp = new byte[24]; + + padKey(key, 0, tmp, 0); + padKey(key, 7, tmp, 8); + padKey(key, 14, tmp, 16); + + return tmp; + } + else + { + return key; + } + } + + /** + * Pad out a key for TDEA, setting odd parity for each byte. + * + * @param keyMaster + * @param keyOff + * @param tmp + * @param tmpOff + */ + private void padKey(byte[] keyMaster, int keyOff, byte[] tmp, int tmpOff) + { + tmp[tmpOff + 0] = (byte)(keyMaster[keyOff + 0] & 0xfe); + tmp[tmpOff + 1] = (byte)((keyMaster[keyOff + 0] << 7) | ((keyMaster[keyOff + 1] & 0xfc) >> 1)); + tmp[tmpOff + 2] = (byte)((keyMaster[keyOff + 1] << 6) | ((keyMaster[keyOff + 2] & 0xf8) >> 2)); + tmp[tmpOff + 3] = (byte)((keyMaster[keyOff + 2] << 5) | ((keyMaster[keyOff + 3] & 0xf0) >> 3)); + tmp[tmpOff + 4] = (byte)((keyMaster[keyOff + 3] << 4) | ((keyMaster[keyOff + 4] & 0xe0) >> 4)); + tmp[tmpOff + 5] = (byte)((keyMaster[keyOff + 4] << 3) | ((keyMaster[keyOff + 5] & 0xc0) >> 5)); + tmp[tmpOff + 6] = (byte)((keyMaster[keyOff + 5] << 2) | ((keyMaster[keyOff + 6] & 0x80) >> 6)); + tmp[tmpOff + 7] = (byte)(keyMaster[keyOff + 6] << 1); + + for (int i = tmpOff; i <= tmpOff + 7; i++) + { + int b = tmp[i]; + tmp[i] = (byte)((b & 0xfe) | + ((((b >> 1) ^ + (b >> 2) ^ + (b >> 3) ^ + (b >> 4) ^ + (b >> 5) ^ + (b >> 6) ^ + (b >> 7)) ^ 0x01) & 0x01)); + } + } + } +} diff --git a/crypto/src/crypto/prng/HMacSP800Drbg.cs b/crypto/src/crypto/prng/HMacSP800Drbg.cs new file mode 100644 index 000000000..b2903766f --- /dev/null +++ b/crypto/src/crypto/prng/HMacSP800Drbg.cs @@ -0,0 +1,196 @@ +using System; + +using Org.BouncyCastle.Crypto.Parameters; +using Org.BouncyCastle.Utilities; + +namespace Org.BouncyCastle.Crypto.Prng.Drbg +{ + /** + * A SP800-90A HMAC DRBG. + */ + public class HMacSP800Drbg: SP80090Drbg + { + private readonly static long RESEED_MAX = 1L << (48 - 1); + private readonly static int MAX_BITS_REQUEST = 1 << (19 - 1); + + private byte[] _K; + private byte[] _V; + private long _reseedCounter; + private IEntropySource _entropySource; + private IMac _hMac; + private int _securityStrength; + + /** + * Construct a SP800-90A Hash DRBG. + *

+ * Minimum entropy requirement is the security strength requested. + *

+ * @param hMac Hash MAC to base the DRBG on. + * @param securityStrength security strength required (in bits) + * @param entropySource source of entropy to use for seeding/reseeding. + * @param personalizationString personalization string to distinguish this DRBG (may be null). + * @param nonce nonce to further distinguish this DRBG (may be null). + */ + public HMacSP800Drbg(IMac hMac, int securityStrength, IEntropySource entropySource, byte[] personalizationString, byte[] nonce) + { + if (securityStrength > Utils.getMaxSecurityStrength(hMac)) + { + throw new ArgumentException("Requested security strength is not supported by the derivation function"); + } + + if (entropySource.EntropySize < securityStrength) + { + throw new ArgumentException("Not enough entropy for security strength required"); + } + + _securityStrength = securityStrength; + _entropySource = entropySource; + _hMac = hMac; + + byte[] entropy = getEntropy(); + byte[] seedMaterial = Arrays.Concatenate(entropy, nonce, personalizationString); + + _K = new byte[hMac.GetMacSize()]; + _V = new byte[_K.Length]; + Arrays.Fill(_V, (byte)1); + + hmac_DRBG_Update(seedMaterial); + + _reseedCounter = 1; + } + + private void hmac_DRBG_Update(byte[] seedMaterial) + { + hmac_DRBG_Update_Func(seedMaterial, (byte)0x00); + if (seedMaterial != null) + { + hmac_DRBG_Update_Func(seedMaterial, (byte)0x01); + } + } + + private void hmac_DRBG_Update_Func(byte[] seedMaterial, byte vValue) + { + _hMac.Init(new KeyParameter(_K)); + + _hMac.BlockUpdate(_V, 0, _V.Length); + _hMac.Update(vValue); + + if (seedMaterial != null) + { + _hMac.BlockUpdate(seedMaterial, 0, seedMaterial.Length); + } + + _hMac.DoFinal(_K, 0); + + _hMac.Init(new KeyParameter(_K)); + _hMac.BlockUpdate(_V, 0, _V.Length); + + _hMac.DoFinal(_V, 0); + } + + /** + * Return the block size (in bits) of the DRBG. + * + * @return the number of bits produced on each round of the DRBG. + */ + public int BlockSize + { + get { + return _V.Length * 8; + } + } + + /** + * Populate a passed in array with random data. + * + * @param output output array for generated bits. + * @param additionalInput additional input to be added to the DRBG in this step. + * @param predictionResistant true if a reseed should be forced, false otherwise. + * + * @return number of bits generated, -1 if a reseed required. + */ + public int Generate(byte[] output, byte[] additionalInput, bool predictionResistant) + { + int numberOfBits = output.Length * 8; + + if (numberOfBits > MAX_BITS_REQUEST) + { + throw new ArgumentException("Number of bits per request limited to " + MAX_BITS_REQUEST); + } + + if (_reseedCounter > RESEED_MAX) + { + return -1; + } + + if (predictionResistant) + { + Reseed(additionalInput); + additionalInput = null; + } + + // 2. + if (additionalInput != null) + { + hmac_DRBG_Update(additionalInput); + } + + // 3. + byte[] rv = new byte[output.Length]; + + int m = output.Length / _V.Length; + + _hMac.Init(new KeyParameter(_K)); + + for (int i = 0; i < m; i++) + { + _hMac.BlockUpdate(_V, 0, _V.Length); + _hMac.DoFinal(_V, 0); + + Array.Copy(_V, 0, rv, i * _V.Length, _V.Length); + } + + if (m * _V.Length < rv.Length) + { + _hMac.BlockUpdate(_V, 0, _V.Length); + _hMac.DoFinal(_V, 0); + + Array.Copy(_V, 0, rv, m * _V.Length, rv.Length - (m * _V.Length)); + } + + hmac_DRBG_Update(additionalInput); + + _reseedCounter++; + + Array.Copy(rv, 0, output, 0, output.Length); + + return numberOfBits; + } + + /** + * Reseed the DRBG. + * + * @param additionalInput additional input to be added to the DRBG in this step. + */ + public void Reseed(byte[] additionalInput) + { + byte[] entropy = getEntropy(); + byte[] seedMaterial = Arrays.Concatenate(entropy, additionalInput); + + hmac_DRBG_Update(seedMaterial); + + _reseedCounter = 1; + } + + private byte[] getEntropy() + { + byte[] entropy = _entropySource.GetEntropy(); + + if (entropy.Length < (_securityStrength + 7) / 8) + { + throw new InvalidOperationException("Insufficient entropy provided by entropy source"); + } + return entropy; + } + } +} diff --git a/crypto/src/crypto/prng/HashSP800Drbg.cs b/crypto/src/crypto/prng/HashSP800Drbg.cs new file mode 100644 index 000000000..b2b386f17 --- /dev/null +++ b/crypto/src/crypto/prng/HashSP800Drbg.cs @@ -0,0 +1,295 @@ +using System; +using System.Collections; + +using Org.BouncyCastle.Utilities; + +namespace Org.BouncyCastle.Crypto.Prng.Drbg +{ + /** + * A SP800-90A Hash DRBG. + */ + public class HashSP800Drbg: SP80090Drbg + { + private readonly static byte[] ONE = { 0x01 }; + + private readonly static long RESEED_MAX = 1L << (48 - 1); + private readonly static int MAX_BITS_REQUEST = 1 << (19 - 1); + + private static readonly IDictionary seedlens = Platform.CreateHashtable(); + + static HashSP800Drbg() + { + seedlens.Add("SHA-1", 440); + seedlens.Add("SHA-224", 440); + seedlens.Add("SHA-256", 440); + seedlens.Add("SHA-512/256", 440); + seedlens.Add("SHA-512/224", 440); + seedlens.Add("SHA-384", 888); + seedlens.Add("SHA-512", 888); + + } + + private IDigest _digest; + private byte[] _V; + private byte[] _C; + private long _reseedCounter; + private IEntropySource _entropySource; + private int _securityStrength; + private int _seedLength; + + /** + * Construct a SP800-90A Hash DRBG. + *

+ * Minimum entropy requirement is the security strength requested. + *

+ * @param digest source digest to use for DRB stream. + * @param securityStrength security strength required (in bits) + * @param entropySource source of entropy to use for seeding/reseeding. + * @param personalizationString personalization string to distinguish this DRBG (may be null). + * @param nonce nonce to further distinguish this DRBG (may be null). + */ + public HashSP800Drbg(IDigest digest, int securityStrength, IEntropySource entropySource, byte[] personalizationString, byte[] nonce) + { + if (securityStrength > Utils.getMaxSecurityStrength(digest)) + { + throw new ArgumentException("Requested security strength is not supported by the derivation function"); + } + + if (entropySource.EntropySize < securityStrength) + { + throw new ArgumentException("Not enough entropy for security strength required"); + } + + _digest = digest; + _entropySource = entropySource; + _securityStrength = securityStrength; + _seedLength = (int)seedlens[digest.AlgorithmName]; + + // 1. seed_material = entropy_input || nonce || personalization_string. + // 2. seed = Hash_df (seed_material, seedlen). + // 3. V = seed. + // 4. C = Hash_df ((0x00 || V), seedlen). Comment: Preceed V with a byte + // of zeros. + // 5. reseed_counter = 1. + // 6. Return V, C, and reseed_counter as the initial_working_state + + byte[] entropy = getEntropy(); + byte[] seedMaterial = Arrays.Concatenate(entropy, nonce, personalizationString); + byte[] seed = Utils.hash_df(_digest, seedMaterial, _seedLength); + + _V = seed; + byte[] subV = new byte[_V.Length + 1]; + Array.Copy(_V, 0, subV, 1, _V.Length); + _C = Utils.hash_df(_digest, subV, _seedLength); + + _reseedCounter = 1; + } + + /** + * Return the block size (in bits) of the DRBG. + * + * @return the number of bits produced on each internal round of the DRBG. + */ + public int BlockSize + { + get { + return _digest.GetDigestSize () * 8; + } + } + + /** + * Populate a passed in array with random data. + * + * @param output output array for generated bits. + * @param additionalInput additional input to be added to the DRBG in this step. + * @param predictionResistant true if a reseed should be forced, false otherwise. + * + * @return number of bits generated, -1 if a reseed required. + */ + public int Generate(byte[] output, byte[] additionalInput, bool predictionResistant) + { + // 1. If reseed_counter > reseed_interval, then return an indication that a + // reseed is required. + // 2. If (additional_input != Null), then do + // 2.1 w = Hash (0x02 || V || additional_input). + // 2.2 V = (V + w) mod 2^seedlen + // . + // 3. (returned_bits) = Hashgen (requested_number_of_bits, V). + // 4. H = Hash (0x03 || V). + // 5. V = (V + H + C + reseed_counter) mod 2^seedlen + // . + // 6. reseed_counter = reseed_counter + 1. + // 7. Return SUCCESS, returned_bits, and the new values of V, C, and + // reseed_counter for the new_working_state. + int numberOfBits = output.Length*8; + + if (numberOfBits > MAX_BITS_REQUEST) + { + throw new ArgumentException("Number of bits per request limited to " + MAX_BITS_REQUEST); + } + + if (_reseedCounter > RESEED_MAX) + { + return -1; + } + + if (predictionResistant) + { + Reseed(additionalInput); + additionalInput = null; + } + + // 2. + if (additionalInput != null) + { + byte[] newInput = new byte[1 + _V.Length + additionalInput.Length]; + newInput[0] = 0x02; + Array.Copy(_V, 0, newInput, 1, _V.Length); + // TODO: inOff / inLength + Array.Copy(additionalInput, 0, newInput, 1 + _V.Length, additionalInput.Length); + byte[] w = hash(newInput); + + addTo(_V, w); + } + + // 3. + byte[] rv = hashgen(_V, numberOfBits); + + // 4. + byte[] subH = new byte[_V.Length + 1]; + Array.Copy(_V, 0, subH, 1, _V.Length); + subH[0] = 0x03; + + byte[] H = hash(subH); + + // 5. + addTo(_V, H); + addTo(_V, _C); + byte[] c = new byte[4]; + c[0] = (byte)(_reseedCounter >> 24); + c[1] = (byte)(_reseedCounter >> 16); + c[2] = (byte)(_reseedCounter >> 8); + c[3] = (byte)_reseedCounter; + + addTo(_V, c); + + _reseedCounter++; + + Array.Copy(rv, 0, output, 0, output.Length); + + return numberOfBits; + } + + private byte[] getEntropy() + { + byte[] entropy = _entropySource.GetEntropy(); + if (entropy.Length < (_securityStrength + 7) / 8) + { + throw new InvalidOperationException("Insufficient entropy provided by entropy source"); + } + return entropy; + } + + // this will always add the shorter length byte array mathematically to the + // longer length byte array. + // be careful.... + private void addTo(byte[] longer, byte[] shorter) + { + int carry = 0; + for (int i=1;i <= shorter.Length; i++) // warning + { + int res = (longer[longer.Length-i] & 0xff) + (shorter[shorter.Length-i] & 0xff) + carry; + carry = (res > 0xff) ? 1 : 0; + longer[longer.Length-i] = (byte)res; + } + + for (int i=shorter.Length+1;i <= longer.Length; i++) // warning + { + int res = (longer[longer.Length-i] & 0xff) + carry; + carry = (res > 0xff) ? 1 : 0; + longer[longer.Length-i] = (byte)res; + } + } + + /** + * Reseed the DRBG. + * + * @param additionalInput additional input to be added to the DRBG in this step. + */ + public void Reseed(byte[] additionalInput) + { + // 1. seed_material = 0x01 || V || entropy_input || additional_input. + // + // 2. seed = Hash_df (seed_material, seedlen). + // + // 3. V = seed. + // + // 4. C = Hash_df ((0x00 || V), seedlen). + // + // 5. reseed_counter = 1. + // + // 6. Return V, C, and reseed_counter for the new_working_state. + // + // Comment: Precede with a byte of all zeros. + byte[] entropy = getEntropy(); + byte[] seedMaterial = Arrays.Concatenate(ONE, _V, entropy, additionalInput); + byte[] seed = Utils.hash_df(_digest, seedMaterial, _seedLength); + + _V = seed; + byte[] subV = new byte[_V.Length + 1]; + subV[0] = 0x00; + Array.Copy(_V, 0, subV, 1, _V.Length); + _C = Utils.hash_df(_digest, subV, _seedLength); + + _reseedCounter = 1; + } + + private byte[] hash(byte[] input) + { + byte[] hash = new byte[_digest.GetDigestSize()]; + doHash(input, hash); + return hash; + } + + private void doHash(byte[] input, byte[] output) + { + _digest.BlockUpdate(input, 0, input.Length); + _digest.DoFinal(output, 0); + } + + // 1. m = [requested_number_of_bits / outlen] + // 2. data = V. + // 3. W = the Null string. + // 4. For i = 1 to m + // 4.1 wi = Hash (data). + // 4.2 W = W || wi. + // 4.3 data = (data + 1) mod 2^seedlen + // . + // 5. returned_bits = Leftmost (requested_no_of_bits) bits of W. + private byte[] hashgen(byte[] input, int lengthInBits) + { + int digestSize = _digest.GetDigestSize(); + int m = (lengthInBits / 8) / digestSize; + + byte[] data = new byte[input.Length]; + Array.Copy(input, 0, data, 0, input.Length); + + byte[] W = new byte[lengthInBits / 8]; + + byte[] dig = new byte[_digest.GetDigestSize()]; + for (int i = 0; i <= m; i++) + { + doHash(data, dig); + + int bytesToCopy = ((W.Length - i * dig.Length) > dig.Length) + ? dig.Length + : (W.Length - i * dig.Length); + Array.Copy(dig, 0, W, i * dig.Length, bytesToCopy); + + addTo(data, ONE); + } + + return W; + } + } +} diff --git a/crypto/src/crypto/prng/SP80090Drbg.cs b/crypto/src/crypto/prng/SP80090Drbg.cs new file mode 100644 index 000000000..c39cf365f --- /dev/null +++ b/crypto/src/crypto/prng/SP80090Drbg.cs @@ -0,0 +1,33 @@ +namespace Org.BouncyCastle.Crypto.Prng.Drbg +{ + /** + * Interface to SP800-90A deterministic random bit generators. + */ + public interface SP80090Drbg + { + /** + * Return the block size of the DRBG. + * + * @return the block size (in bits) produced by each round of the DRBG. + */ + int BlockSize { get; } + + /** + * Populate a passed in array with random data. + * + * @param output output array for generated bits. + * @param additionalInput additional input to be added to the DRBG in this step. + * @param predictionResistant true if a reseed should be forced, false otherwise. + * + * @return number of bits generated, -1 if a reseed required. + */ + int Generate(byte[] output, byte[] additionalInput, bool predictionResistant); + + /** + * Reseed the DRBG. + * + * @param additionalInput additional input to be added to the DRBG in this step. + */ + void Reseed(byte[] additionalInput); + } +} diff --git a/crypto/src/crypto/prng/Utils.cs b/crypto/src/crypto/prng/Utils.cs new file mode 100644 index 000000000..e5fe7d4b2 --- /dev/null +++ b/crypto/src/crypto/prng/Utils.cs @@ -0,0 +1,103 @@ +using System; +using System.Collections; + +using Org.BouncyCastle.Utilities; + +namespace Org.BouncyCastle.Crypto.Prng.Drbg +{ + internal class Utils + { + private static readonly IDictionary maxSecurityStrengths = Platform.CreateHashtable(); + + static Utils() + { + maxSecurityStrengths.Add("SHA-1", 128); + + maxSecurityStrengths.Add("SHA-224", 192); + maxSecurityStrengths.Add("SHA-256", 256); + maxSecurityStrengths.Add("SHA-384", 256); + maxSecurityStrengths.Add("SHA-512", 256); + + maxSecurityStrengths.Add("SHA-512/224", 192); + maxSecurityStrengths.Add("SHA-512/256", 256); + } + + internal static int getMaxSecurityStrength(IDigest d) + { + return (int)maxSecurityStrengths[d.AlgorithmName]; + } + + internal static int getMaxSecurityStrength(IMac m) + { + string name = m.AlgorithmName; + + return (int)maxSecurityStrengths[name.Substring(0, name.IndexOf("/"))]; + } + + /** + * Used by both Dual EC and Hash. + */ + internal static byte[] hash_df(IDigest digest, byte[] seedMaterial, int seedLength) + { + // 1. temp = the Null string. + // 2. . + // 3. counter = an 8-bit binary value representing the integer "1". + // 4. For i = 1 to len do + // Comment : In step 4.1, no_of_bits_to_return + // is used as a 32-bit string. + // 4.1 temp = temp || Hash (counter || no_of_bits_to_return || + // input_string). + // 4.2 counter = counter + 1. + // 5. requested_bits = Leftmost (no_of_bits_to_return) of temp. + // 6. Return SUCCESS and requested_bits. + byte[] temp = new byte[(seedLength + 7) / 8]; + + int len = temp.Length / digest.GetDigestSize(); + int counter = 1; + + byte[] dig = new byte[digest.GetDigestSize()]; + + for (int i = 0; i <= len; i++) + { + digest.Update((byte)counter); + + digest.Update((byte)(seedLength >> 24)); + digest.Update((byte)(seedLength >> 16)); + digest.Update((byte)(seedLength >> 8)); + digest.Update((byte)seedLength); + + digest.BlockUpdate(seedMaterial, 0, seedMaterial.Length); + + digest.DoFinal(dig, 0); + + int bytesToCopy = ((temp.Length - i * dig.Length) > dig.Length) + ? dig.Length + : (temp.Length - i * dig.Length); + Array.Copy(dig, 0, temp, i * dig.Length, bytesToCopy); + + counter++; + } + + // do a left shift to get rid of excess bits. + if (seedLength % 8 != 0) + { + int shift = 8 - (seedLength % 8); + uint carry = 0; + + for (int i = 0; i != temp.Length; i++) + { + uint b = (uint)(temp[i] & 0xff); + temp[i] = (byte)((b >> shift) | (carry << (8 - shift))); + carry = b; + } + } + + return temp; + } + + internal static bool isTooLarge(byte[] bytes, int maxBytes) + { + return bytes != null && bytes.Length > maxBytes; + } + } +} diff --git a/crypto/src/crypto/prng/drbg/CtrSP800Drbg.cs b/crypto/src/crypto/prng/drbg/CtrSP800Drbg.cs new file mode 100644 index 000000000..d9595d530 --- /dev/null +++ b/crypto/src/crypto/prng/drbg/CtrSP800Drbg.cs @@ -0,0 +1,494 @@ +using System; + +using Org.BouncyCastle.Utilities; +using Org.BouncyCastle.Utilities.Encoders; + +namespace Org.BouncyCastle.Crypto.Prng.Drbg +{ + /** + * A SP800-90A CTR DRBG. + */ + public class CTRSP800Drbg: SP80090Drbg + { + private static readonly long TDEA_RESEED_MAX = 1L << (32 - 1); + private static readonly long AES_RESEED_MAX = 1L << (48 - 1); + private static readonly int TDEA_MAX_BITS_REQUEST = 1 << (13 - 1); + private static readonly int AES_MAX_BITS_REQUEST = 1 << (19 - 1); + + private IEntropySource _entropySource; + private IBlockCipher _engine; + private int _keySizeInBits; + private int _seedLength; + private int _securityStrength; + + // internal state + private byte[] _Key; + private byte[] _V; + private long _reseedCounter = 0; + private bool _isTDEA = false; + + /** + * Construct a SP800-90A CTR DRBG. + *

+ * Minimum entropy requirement is the security strength requested. + *

+ * @param engine underlying block cipher to use to support DRBG + * @param keySizeInBits size of the key to use with the block cipher. + * @param securityStrength security strength required (in bits) + * @param entropySource source of entropy to use for seeding/reseeding. + * @param personalizationString personalization string to distinguish this DRBG (may be null). + * @param nonce nonce to further distinguish this DRBG (may be null). + */ + public CTRSP800Drbg(IBlockCipher engine, int keySizeInBits, int securityStrength, IEntropySource entropySource, byte[] personalizationString, byte[] nonce) + { + _entropySource = entropySource; + _engine = engine; + + _keySizeInBits = keySizeInBits; + _securityStrength = securityStrength; + _seedLength = keySizeInBits + engine.getBlockSize() * 8; + _isTDEA = isTDEA(engine); + + if (securityStrength > 256) + { + throw new ArgumentException("Requested security strength is not supported by the derivation function"); + } + + if (getMaxSecurityStrength(engine, keySizeInBits) < securityStrength) + { + throw new ArgumentException("Requested security strength is not supported by block cipher and key size"); + } + + if (entropySource.EntropySize < securityStrength) + { + throw new ArgumentException("Not enough entropy for security strength required"); + } + + byte[] entropy = getEntropy(); // Get_entropy_input + + CTR_DRBG_Instantiate_algorithm(entropy, nonce, personalizationString); + } + + private void CTR_DRBG_Instantiate_algorithm(byte[] entropy, byte[] nonce, + byte[] personalisationString) + { + byte[] seedMaterial = Arrays.Concatenate(entropy, nonce, personalisationString); + byte[] seed = Block_Cipher_df(seedMaterial, _seedLength); + + int outlen = _engine.getBlockSize(); + + _Key = new byte[(_keySizeInBits + 7) / 8]; + _V = new byte[outlen]; + + // _Key & _V are modified by this call + CTR_DRBG_Update(seed, _Key, _V); + + _reseedCounter = 1; + } + + private void CTR_DRBG_Update(byte[] seed, byte[] key, byte[] v) + { + byte[] temp = new byte[seed.Length]; + byte[] outputBlock = new byte[_engine.getBlockSize()]; + + int i=0; + int outLen = _engine.getBlockSize(); + + _engine.init(true, new KeyParameter(expandKey(key))); + while (i*outLen < seed.Length) + { + addOneTo(v); + _engine.processBlock(v, 0, outputBlock, 0); + + int bytesToCopy = ((temp.Length - i * outLen) > outLen) + ? outLen : (temp.Length - i * outLen); + + Array.Copy(outputBlock, 0, temp, i * outLen, bytesToCopy); + ++i; + } + + XOR(temp, seed, temp, 0); + + Array.Copy(temp, 0, key, 0, key.Length); + Array.Copy(temp, key.Length, v, 0, v.Length); + } + + private void CTR_DRBG_Reseed_algorithm(byte[] additionalInput) + { + byte[] seedMaterial = Arrays.Concatenate(getEntropy(), additionalInput); + + seedMaterial = Block_Cipher_df(seedMaterial, _seedLength); + + CTR_DRBG_Update(seedMaterial, _Key, _V); + + _reseedCounter = 1; + } + + private void XOR(byte[] output, byte[] a, byte[] b, int bOff) + { + for (int i=0; i< output.Length; i++) + { + output[i] = (byte)(a[i] ^ b[i+bOff]); + } + } + + private void addOneTo(byte[] longer) + { + int carry = 1; + for (int i = 1; i <= longer.Length; i++) // warning + { + int res = (longer[longer.Length - i] & 0xff) + carry; + carry = (res > 0xff) ? 1 : 0; + longer[longer.Length - i] = (byte)res; + } + } + + private byte[] getEntropy() + { + byte[] entropy = _entropySource.getEntropy(); + if (entropy.Length < (_securityStrength + 7) / 8) + { + throw new IllegalStateException("Insufficient entropy provided by entropy source"); + } + return entropy; + } + + // -- Internal state migration --- + + private static final byte[] K_BITS = Hex.decode("000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F"); + + // 1. If (number_of_bits_to_return > max_number_of_bits), then return an + // ERROR_FLAG. + // 2. L = len (input_string)/8. + // 3. N = number_of_bits_to_return/8. + // Comment: L is the bitstring represention of + // the integer resulting from len (input_string)/8. + // L shall be represented as a 32-bit integer. + // + // Comment : N is the bitstring represention of + // the integer resulting from + // number_of_bits_to_return/8. N shall be + // represented as a 32-bit integer. + // + // 4. S = L || N || input_string || 0x80. + // 5. While (len (S) mod outlen) + // Comment : Pad S with zeros, if necessary. + // 0, S = S || 0x00. + // + // Comment : Compute the starting value. + // 6. temp = the Null string. + // 7. i = 0. + // 8. K = Leftmost keylen bits of 0x00010203...1D1E1F. + // 9. While len (temp) < keylen + outlen, do + // + // IV = i || 0outlen - len (i). + // + // 9.1 + // + // temp = temp || BCC (K, (IV || S)). + // + // 9.2 + // + // i = i + 1. + // + // 9.3 + // + // Comment : i shall be represented as a 32-bit + // integer, i.e., len (i) = 32. + // + // Comment: The 32-bit integer represenation of + // i is padded with zeros to outlen bits. + // + // Comment: Compute the requested number of + // bits. + // + // 10. K = Leftmost keylen bits of temp. + // + // 11. X = Next outlen bits of temp. + // + // 12. temp = the Null string. + // + // 13. While len (temp) < number_of_bits_to_return, do + // + // 13.1 X = Block_Encrypt (K, X). + // + // 13.2 temp = temp || X. + // + // 14. requested_bits = Leftmost number_of_bits_to_return of temp. + // + // 15. Return SUCCESS and requested_bits. + private byte[] Block_Cipher_df(byte[] inputString, int bitLength) + { + int outLen = _engine.getBlockSize(); + int L = inputString.Length; // already in bytes + int N = bitLength / 8; + // 4 S = L || N || inputstring || 0x80 + int sLen = 4 + 4 + L + 1; + int blockLen = ((sLen + outLen - 1) / outLen) * outLen; + byte[] S = new byte[blockLen]; + copyIntToByteArray(S, L, 0); + copyIntToByteArray(S, N, 4); + Array.Copy(inputString, 0, S, 8, L); + S[8 + L] = (byte)0x80; + // S already padded with zeros + + byte[] temp = new byte[_keySizeInBits / 8 + outLen]; + byte[] bccOut = new byte[outLen]; + + byte[] IV = new byte[outLen]; + + int i = 0; + byte[] K = new byte[_keySizeInBits / 8]; + Array.Copy(K_BITS, 0, K, 0, K.Length); + + while (i*outLen*8 < _keySizeInBits + outLen *8) + { + copyIntToByteArray(IV, i, 0); + BCC(bccOut, K, IV, S); + + int bytesToCopy = ((temp.Length - i * outLen) > outLen) + ? outLen + : (temp.Length - i * outLen); + + Array.Copy(bccOut, 0, temp, i * outLen, bytesToCopy); + ++i; + } + + byte[] X = new byte[outLen]; + Array.Copy(temp, 0, K, 0, K.Length); + Array.Copy(temp, K.Length, X, 0, X.Length); + + temp = new byte[bitLength / 2]; + + i = 0; + _engine.init(true, new KeyParameter(expandKey(K))); + + while (i * outLen < temp.Length) + { + _engine.processBlock(X, 0, X, 0); + + int bytesToCopy = ((temp.Length - i * outLen) > outLen) + ? outLen + : (temp.Length - i * outLen); + + Array.Copy(X, 0, temp, i * outLen, bytesToCopy); + i++; + } + + return temp; + } + + /* + * 1. chaining_value = 0^outlen + * . Comment: Set the first chaining value to outlen zeros. + * 2. n = len (data)/outlen. + * 3. Starting with the leftmost bits of data, split the data into n blocks of outlen bits + * each, forming block(1) to block(n). + * 4. For i = 1 to n do + * 4.1 input_block = chaining_value ^ block(i) . + * 4.2 chaining_value = Block_Encrypt (Key, input_block). + * 5. output_block = chaining_value. + * 6. Return output_block. + */ + private void BCC(byte[] bccOut, byte[] k, byte[] iV, byte[] data) + { + int outlen = _engine.getBlockSize(); + byte[] chainingValue = new byte[outlen]; // initial values = 0 + int n = data.Length / outlen; + + byte[] inputBlock = new byte[outlen]; + + _engine.init(true, new KeyParameter(expandKey(k))); + + _engine.processBlock(iV, 0, chainingValue, 0); + + for (int i = 0; i < n; i++) + { + XOR(inputBlock, chainingValue, data, i*outlen); + _engine.processBlock(inputBlock, 0, chainingValue, 0); + } + + Array.Copy(chainingValue, 0, bccOut, 0, bccOut.Length); + } + + private void copyIntToByteArray(byte[] buf, int value, int offSet) + { + buf[offSet + 0] = ((byte)(value >> 24)); + buf[offSet + 1] = ((byte)(value >> 16)); + buf[offSet + 2] = ((byte)(value >> 8)); + buf[offSet + 3] = ((byte)(value)); + } + + /** + * Return the block size (in bits) of the DRBG. + * + * @return the number of bits produced on each internal round of the DRBG. + */ + public int BlockSize + { + get { + return _V.Length * 8; + } + } + + /** + * Populate a passed in array with random data. + * + * @param output output array for generated bits. + * @param additionalInput additional input to be added to the DRBG in this step. + * @param predictionResistant true if a reseed should be forced, false otherwise. + * + * @return number of bits generated, -1 if a reseed required. + */ + public int Generate(byte[] output, byte[] additionalInput, bool predictionResistant) + { + if (_isTDEA) + { + if (_reseedCounter > TDEA_RESEED_MAX) + { + return -1; + } + + if (Utils.isTooLarge(output, TDEA_MAX_BITS_REQUEST / 8)) + { + throw new ArgumentException("Number of bits per request limited to " + TDEA_MAX_BITS_REQUEST); + } + } + else + { + if (_reseedCounter > AES_RESEED_MAX) + { + return -1; + } + + if (Utils.isTooLarge(output, AES_MAX_BITS_REQUEST / 8)) + { + throw new ArgumentException("Number of bits per request limited to " + AES_MAX_BITS_REQUEST); + } + } + + if (predictionResistant) + { + CTR_DRBG_Reseed_algorithm(additionalInput); + additionalInput = null; + } + + if (additionalInput != null) + { + additionalInput = Block_Cipher_df(additionalInput, _seedLength); + CTR_DRBG_Update(additionalInput, _Key, _V); + } + else + { + additionalInput = new byte[_seedLength]; + } + + byte[] tmp = new byte[_V.Length]; + + _engine.init(true, new KeyParameter(expandKey(_Key))); + + for (int i = 0; i <= output.Length / tmp.Length; i++) + { + int bytesToCopy = ((output.Length - i * tmp.Length) > tmp.Length) + ? tmp.Length + : (output.Length - i * _V.Length); + + if (bytesToCopy != 0) + { + addOneTo(_V); + + _engine.processBlock(_V, 0, tmp, 0); + + Array.Copy(tmp, 0, output, i * tmp.Length, bytesToCopy); + } + } + + CTR_DRBG_Update(additionalInput, _Key, _V); + + _reseedCounter++; + + return output.Length * 8; + } + + /** + * Reseed the DRBG. + * + * @param additionalInput additional input to be added to the DRBG in this step. + */ + public void Reseed(byte[] additionalInput) + { + CTR_DRBG_Reseed_algorithm(additionalInput); + } + + private boolean isTDEA(BlockCipher cipher) + { + return cipher.AlgorithmName.Equals("DESede") || cipher.AlgorithmName.Equals("TDEA"); + } + + private int getMaxSecurityStrength(BlockCipher cipher, int keySizeInBits) + { + if (isTDEA(cipher) && keySizeInBits == 168) + { + return 112; + } + if (cipher.AlgorithmName.Equals("AES")) + { + return keySizeInBits; + } + + return -1; + } + + byte[] expandKey(byte[] key) + { + if (_isTDEA) + { + // expand key to 192 bits. + byte[] tmp = new byte[24]; + + padKey(key, 0, tmp, 0); + padKey(key, 7, tmp, 8); + padKey(key, 14, tmp, 16); + + return tmp; + } + else + { + return key; + } + } + + /** + * Pad out a key for TDEA, setting odd parity for each byte. + * + * @param keyMaster + * @param keyOff + * @param tmp + * @param tmpOff + */ + private void padKey(byte[] keyMaster, int keyOff, byte[] tmp, int tmpOff) + { + tmp[tmpOff + 0] = (byte)(keyMaster[keyOff + 0] & 0xfe); + tmp[tmpOff + 1] = (byte)((keyMaster[keyOff + 0] << 7) | ((keyMaster[keyOff + 1] & 0xfc) >> 1)); + tmp[tmpOff + 2] = (byte)((keyMaster[keyOff + 1] << 6) | ((keyMaster[keyOff + 2] & 0xf8) >> 2)); + tmp[tmpOff + 3] = (byte)((keyMaster[keyOff + 2] << 5) | ((keyMaster[keyOff + 3] & 0xf0) >> 3)); + tmp[tmpOff + 4] = (byte)((keyMaster[keyOff + 3] << 4) | ((keyMaster[keyOff + 4] & 0xe0) >> 4)); + tmp[tmpOff + 5] = (byte)((keyMaster[keyOff + 4] << 3) | ((keyMaster[keyOff + 5] & 0xc0) >> 5)); + tmp[tmpOff + 6] = (byte)((keyMaster[keyOff + 5] << 2) | ((keyMaster[keyOff + 6] & 0x80) >> 6)); + tmp[tmpOff + 7] = (byte)(keyMaster[keyOff + 6] << 1); + + for (int i = tmpOff; i <= tmpOff + 7; i++) + { + int b = tmp[i]; + tmp[i] = (byte)((b & 0xfe) | + ((((b >> 1) ^ + (b >> 2) ^ + (b >> 3) ^ + (b >> 4) ^ + (b >> 5) ^ + (b >> 6) ^ + (b >> 7)) ^ 0x01) & 0x01)); + } + } + } +} diff --git a/crypto/src/crypto/prng/drbg/HMacSP800Drbg.cs b/crypto/src/crypto/prng/drbg/HMacSP800Drbg.cs new file mode 100644 index 000000000..78a710097 --- /dev/null +++ b/crypto/src/crypto/prng/drbg/HMacSP800Drbg.cs @@ -0,0 +1,196 @@ +using System; + +using Org.BouncyCastle.Crypto.Parameters; +using Org.BouncyCastle.Utilities; + +namespace Org.BouncyCastle.Crypto.Prng.Drbg +{ + /** + * A SP800-90A HMAC DRBG. + */ + public class HMacSP800Drbg: SP80090Drbg + { + private readonly static long RESEED_MAX = 1L << (48 - 1); + private readonly static int MAX_BITS_REQUEST = 1 << (19 - 1); + + private byte[] _K; + private byte[] _V; + private long _reseedCounter; + private EntropySource _entropySource; + private Mac _hMac; + private int _securityStrength; + + /** + * Construct a SP800-90A Hash DRBG. + *

+ * Minimum entropy requirement is the security strength requested. + *

+ * @param hMac Hash MAC to base the DRBG on. + * @param securityStrength security strength required (in bits) + * @param entropySource source of entropy to use for seeding/reseeding. + * @param personalizationString personalization string to distinguish this DRBG (may be null). + * @param nonce nonce to further distinguish this DRBG (may be null). + */ + public HMacSP800Drbg(IMac hMac, int securityStrength, IEntropySource entropySource, byte[] personalizationString, byte[] nonce) + { + if (securityStrength > Utils.getMaxSecurityStrength(hMac)) + { + throw new ArgumentException("Requested security strength is not supported by the derivation function"); + } + + if (entropySource.EntropySize < securityStrength) + { + throw new ArgumentException("Not enough entropy for security strength required"); + } + + _securityStrength = securityStrength; + _entropySource = entropySource; + _hMac = hMac; + + byte[] entropy = getEntropy(); + byte[] seedMaterial = Arrays.Concatenate(entropy, nonce, personalizationString); + + _K = new byte[hMac.GetMacSize()]; + _V = new byte[_K.Length]; + Arrays.fill(_V, (byte)1); + + hmac_DRBG_Update(seedMaterial); + + _reseedCounter = 1; + } + + private void hmac_DRBG_Update(byte[] seedMaterial) + { + hmac_DRBG_Update_Func(seedMaterial, (byte)0x00); + if (seedMaterial != null) + { + hmac_DRBG_Update_Func(seedMaterial, (byte)0x01); + } + } + + private void hmac_DRBG_Update_Func(byte[] seedMaterial, byte vValue) + { + _hMac.Init(new KeyParameter(_K)); + + _hMac.BlockUpdate(_V, 0, _V.Length); + _hMac.Update(vValue); + + if (seedMaterial != null) + { + _hMac.update(seedMaterial, 0, seedMaterial.Length); + } + + _hMac.DoFinal(_K, 0); + + _hMac.Init(new KeyParameter(_K)); + _hMac.BlockUpdate(_V, 0, _V.Length); + + _hMac.DoFinal(_V, 0); + } + + /** + * Return the block size (in bits) of the DRBG. + * + * @return the number of bits produced on each round of the DRBG. + */ + public int BlockSize + { + get { + return _V.Length * 8; + } + } + + /** + * Populate a passed in array with random data. + * + * @param output output array for generated bits. + * @param additionalInput additional input to be added to the DRBG in this step. + * @param predictionResistant true if a reseed should be forced, false otherwise. + * + * @return number of bits generated, -1 if a reseed required. + */ + public int Generate(byte[] output, byte[] additionalInput, boolean predictionResistant) + { + int numberOfBits = output.Length * 8; + + if (numberOfBits > MAX_BITS_REQUEST) + { + throw new IllegalArgumentException("Number of bits per request limited to " + MAX_BITS_REQUEST); + } + + if (_reseedCounter > RESEED_MAX) + { + return -1; + } + + if (predictionResistant) + { + reseed(additionalInput); + additionalInput = null; + } + + // 2. + if (additionalInput != null) + { + hmac_DRBG_Update(additionalInput); + } + + // 3. + byte[] rv = new byte[output.Length]; + + int m = output.Length / _V.Length; + + _hMac.Init(new KeyParameter(_K)); + + for (int i = 0; i < m; i++) + { + _hMac.BlockUpdate(_V, 0, _V.Length); + _hMac.DoFinal(_V, 0); + + Array.Copy(_V, 0, rv, i * _V.Length, _V.Length); + } + + if (m * _V.Length < rv.Length) + { + _hMac.BlockUpdate(_V, 0, _V.Length); + _hMac.DoFinal(_V, 0); + + Array.Copy(_V, 0, rv, m * _V.Length, rv.Length - (m * _V.Length)); + } + + hmac_DRBG_Update(additionalInput); + + _reseedCounter++; + + Array.Copy(rv, 0, output, 0, output.Length); + + return numberOfBits; + } + + /** + * Reseed the DRBG. + * + * @param additionalInput additional input to be added to the DRBG in this step. + */ + public void Reseed(byte[] additionalInput) + { + byte[] entropy = getEntropy(); + byte[] seedMaterial = Arrays.Concatenate(entropy, additionalInput); + + hmac_DRBG_Update(seedMaterial); + + _reseedCounter = 1; + } + + private byte[] getEntropy() + { + byte[] entropy = _entropySource.GetEntropy(); + + if (entropy.Length < (_securityStrength + 7) / 8) + { + throw new IllegalStateException("Insufficient entropy provided by entropy source"); + } + return entropy; + } + } +} diff --git a/crypto/src/crypto/prng/drbg/HashSP800Drbg.cs b/crypto/src/crypto/prng/drbg/HashSP800Drbg.cs new file mode 100644 index 000000000..868778817 --- /dev/null +++ b/crypto/src/crypto/prng/drbg/HashSP800Drbg.cs @@ -0,0 +1,295 @@ +using System; +using System.Collections; + +using Org.BouncyCastle.Utilities; + +namespace Org.BouncyCastle.Crypto.Prng.Drbg +{ + /** + * A SP800-90A Hash DRBG. + */ + public class HashSP800Drbg: SP80090Drbg + { + private readonly static byte[] ONE = { 0x01 }; + + private readonly static long RESEED_MAX = 1L << (48 - 1); + private readonly static int MAX_BITS_REQUEST = 1 << (19 - 1); + + private static readonly IDictionary seedlens = Platform.CreateHashtable(); + + static HashSP800Drbg() + { + seedlens.Add("SHA-1", 440); + seedlens.Add("SHA-224", 440); + seedlens.Add("SHA-256", 440); + seedlens.Add("SHA-512/256", 440); + seedlens.Add("SHA-512/224", 440); + seedlens.Add("SHA-384", 888); + seedlens.Add("SHA-512", 888); + + } + + private IDigest _digest; + private byte[] _V; + private byte[] _C; + private long _reseedCounter; + private IEntropySource _entropySource; + private int _securityStrength; + private int _seedLength; + + /** + * Construct a SP800-90A Hash DRBG. + *

+ * Minimum entropy requirement is the security strength requested. + *

+ * @param digest source digest to use for DRB stream. + * @param securityStrength security strength required (in bits) + * @param entropySource source of entropy to use for seeding/reseeding. + * @param personalizationString personalization string to distinguish this DRBG (may be null). + * @param nonce nonce to further distinguish this DRBG (may be null). + */ + public HashSP800Drbg(IDigest digest, int securityStrength, IEntropySource entropySource, byte[] personalizationString, byte[] nonce) + { + if (securityStrength > Utils.getMaxSecurityStrength(digest)) + { + throw new ArgumentException("Requested security strength is not supported by the derivation function"); + } + + if (entropySource.EntropySize < securityStrength) + { + throw new ArgumentException("Not enough entropy for security strength required"); + } + + _digest = digest; + _entropySource = entropySource; + _securityStrength = securityStrength; + _seedLength = ((Integer)seedlens.get(digest.getAlgorithmName())).intValue(); + + // 1. seed_material = entropy_input || nonce || personalization_string. + // 2. seed = Hash_df (seed_material, seedlen). + // 3. V = seed. + // 4. C = Hash_df ((0x00 || V), seedlen). Comment: Preceed V with a byte + // of zeros. + // 5. reseed_counter = 1. + // 6. Return V, C, and reseed_counter as the initial_working_state + + byte[] entropy = getEntropy(); + byte[] seedMaterial = Arrays.Concatenate(entropy, nonce, personalizationString); + byte[] seed = Utils.hash_df(_digest, seedMaterial, _seedLength); + + _V = seed; + byte[] subV = new byte[_V.Length + 1]; + Array.Copy(_V, 0, subV, 1, _V.Length); + _C = Utils.hash_df(_digest, subV, _seedLength); + + _reseedCounter = 1; + } + + /** + * Return the block size (in bits) of the DRBG. + * + * @return the number of bits produced on each internal round of the DRBG. + */ + public int BlockSize + { + get { + return _digest.GetDigestSize () * 8; + } + } + + /** + * Populate a passed in array with random data. + * + * @param output output array for generated bits. + * @param additionalInput additional input to be added to the DRBG in this step. + * @param predictionResistant true if a reseed should be forced, false otherwise. + * + * @return number of bits generated, -1 if a reseed required. + */ + public int Generate(byte[] output, byte[] additionalInput, bool predictionResistant) + { + // 1. If reseed_counter > reseed_interval, then return an indication that a + // reseed is required. + // 2. If (additional_input != Null), then do + // 2.1 w = Hash (0x02 || V || additional_input). + // 2.2 V = (V + w) mod 2^seedlen + // . + // 3. (returned_bits) = Hashgen (requested_number_of_bits, V). + // 4. H = Hash (0x03 || V). + // 5. V = (V + H + C + reseed_counter) mod 2^seedlen + // . + // 6. reseed_counter = reseed_counter + 1. + // 7. Return SUCCESS, returned_bits, and the new values of V, C, and + // reseed_counter for the new_working_state. + int numberOfBits = output.Length*8; + + if (numberOfBits > MAX_BITS_REQUEST) + { + throw new ArgumentException("Number of bits per request limited to " + MAX_BITS_REQUEST); + } + + if (_reseedCounter > RESEED_MAX) + { + return -1; + } + + if (predictionResistant) + { + reseed(additionalInput); + additionalInput = null; + } + + // 2. + if (additionalInput != null) + { + byte[] newInput = new byte[1 + _V.Length + additionalInput.Length]; + newInput[0] = 0x02; + Array.Copy(_V, 0, newInput, 1, _V.Length); + // TODO: inOff / inLength + Array.Copy(additionalInput, 0, newInput, 1 + _V.Length, additionalInput.Length); + byte[] w = hash(newInput); + + addTo(_V, w); + } + + // 3. + byte[] rv = hashgen(_V, numberOfBits); + + // 4. + byte[] subH = new byte[_V.Length + 1]; + Array.Copy(_V, 0, subH, 1, _V.Length); + subH[0] = 0x03; + + byte[] H = hash(subH); + + // 5. + addTo(_V, H); + addTo(_V, _C); + byte[] c = new byte[4]; + c[0] = (byte)(_reseedCounter >> 24); + c[1] = (byte)(_reseedCounter >> 16); + c[2] = (byte)(_reseedCounter >> 8); + c[3] = (byte)_reseedCounter; + + addTo(_V, c); + + _reseedCounter++; + + Array.Copy(rv, 0, output, 0, output.Length); + + return numberOfBits; + } + + private byte[] getEntropy() + { + byte[] entropy = _entropySource.getEntropy(); + if (entropy.Length < (_securityStrength + 7) / 8) + { + throw new IllegalStateException("Insufficient entropy provided by entropy source"); + } + return entropy; + } + + // this will always add the shorter length byte array mathematically to the + // longer length byte array. + // be careful.... + private void addTo(byte[] longer, byte[] shorter) + { + int carry = 0; + for (int i=1;i <= shorter.Length; i++) // warning + { + int res = (longer[longer.Length-i] & 0xff) + (shorter[shorter.Length-i] & 0xff) + carry; + carry = (res > 0xff) ? 1 : 0; + longer[longer.Length-i] = (byte)res; + } + + for (int i=shorter.Length+1;i <= longer.Length; i++) // warning + { + int res = (longer[longer.Length-i] & 0xff) + carry; + carry = (res > 0xff) ? 1 : 0; + longer[longer.Length-i] = (byte)res; + } + } + + /** + * Reseed the DRBG. + * + * @param additionalInput additional input to be added to the DRBG in this step. + */ + public void Reseed(byte[] additionalInput) + { + // 1. seed_material = 0x01 || V || entropy_input || additional_input. + // + // 2. seed = Hash_df (seed_material, seedlen). + // + // 3. V = seed. + // + // 4. C = Hash_df ((0x00 || V), seedlen). + // + // 5. reseed_counter = 1. + // + // 6. Return V, C, and reseed_counter for the new_working_state. + // + // Comment: Precede with a byte of all zeros. + byte[] entropy = getEntropy(); + byte[] seedMaterial = Arrays.Concatenate(ONE, _V, entropy, additionalInput); + byte[] seed = Utils.hash_df(_digest, seedMaterial, _seedLength); + + _V = seed; + byte[] subV = new byte[_V.Length + 1]; + subV[0] = 0x00; + Array.Copy(_V, 0, subV, 1, _V.Length); + _C = Utils.hash_df(_digest, subV, _seedLength); + + _reseedCounter = 1; + } + + private byte[] hash(byte[] input) + { + byte[] hash = new byte[_digest.GetDigestSize()]; + doHash(input, hash); + return hash; + } + + private void doHash(byte[] input, byte[] output) + { + _digest.BlockUpdate(input, 0, input.Length); + _digest.DoFinal(output, 0); + } + + // 1. m = [requested_number_of_bits / outlen] + // 2. data = V. + // 3. W = the Null string. + // 4. For i = 1 to m + // 4.1 wi = Hash (data). + // 4.2 W = W || wi. + // 4.3 data = (data + 1) mod 2^seedlen + // . + // 5. returned_bits = Leftmost (requested_no_of_bits) bits of W. + private byte[] hashgen(byte[] input, int lengthInBits) + { + int digestSize = _digest.GetDigestSize(); + int m = (lengthInBits / 8) / digestSize; + + byte[] data = new byte[input.Length]; + Array.Copy(input, 0, data, 0, input.Length); + + byte[] W = new byte[lengthInBits / 8]; + + byte[] dig = new byte[_digest.GetDigestSize()]; + for (int i = 0; i <= m; i++) + { + doHash(data, dig); + + int bytesToCopy = ((W.Length - i * dig.Length) > dig.Length) + ? dig.Length + : (W.Length - i * dig.Length); + Array.Copy(dig, 0, W, i * dig.Length, bytesToCopy); + + addTo(data, ONE); + } + + return W; + } + } +} diff --git a/crypto/src/crypto/prng/drbg/SP80090Drbg.cs b/crypto/src/crypto/prng/drbg/SP80090Drbg.cs new file mode 100644 index 000000000..c39cf365f --- /dev/null +++ b/crypto/src/crypto/prng/drbg/SP80090Drbg.cs @@ -0,0 +1,33 @@ +namespace Org.BouncyCastle.Crypto.Prng.Drbg +{ + /** + * Interface to SP800-90A deterministic random bit generators. + */ + public interface SP80090Drbg + { + /** + * Return the block size of the DRBG. + * + * @return the block size (in bits) produced by each round of the DRBG. + */ + int BlockSize { get; } + + /** + * Populate a passed in array with random data. + * + * @param output output array for generated bits. + * @param additionalInput additional input to be added to the DRBG in this step. + * @param predictionResistant true if a reseed should be forced, false otherwise. + * + * @return number of bits generated, -1 if a reseed required. + */ + int Generate(byte[] output, byte[] additionalInput, bool predictionResistant); + + /** + * Reseed the DRBG. + * + * @param additionalInput additional input to be added to the DRBG in this step. + */ + void Reseed(byte[] additionalInput); + } +} diff --git a/crypto/src/crypto/prng/drbg/Utils.cs b/crypto/src/crypto/prng/drbg/Utils.cs new file mode 100644 index 000000000..b5f3b5830 --- /dev/null +++ b/crypto/src/crypto/prng/drbg/Utils.cs @@ -0,0 +1,103 @@ +using System; +using System.Collections; + +using Org.BouncyCastle.Utilities; + +namespace Org.BouncyCastle.Crypto.Prng.Drbg +{ + internal class Utils + { + private static readonly IDictionary maxSecurityStrengths = Platform.CreateHashtable(); + + static Utils() + { + maxSecurityStrengths.put("SHA-1", 128); + + maxSecurityStrengths.put("SHA-224", 192); + maxSecurityStrengths.put("SHA-256", 256); + maxSecurityStrengths.put("SHA-384", 256); + maxSecurityStrengths.put("SHA-512", 256); + + maxSecurityStrengths.put("SHA-512/224", 192); + maxSecurityStrengths.put("SHA-512/256", 256); + } + + internal static int getMaxSecurityStrength(IDigest d) + { + return (int)maxSecurityStrengths[d.AlgorithmName]; + } + + internal static int getMaxSecurityStrength(IMac m) + { + String name = m.getAlgorithmName(); + + return (int)maxSecurityStrengths[name.substring(0, name.indexOf("/"))]; + } + + /** + * Used by both Dual EC and Hash. + */ + internal static byte[] hash_df(Digest digest, byte[] seedMaterial, int seedLength) + { + // 1. temp = the Null string. + // 2. . + // 3. counter = an 8-bit binary value representing the integer "1". + // 4. For i = 1 to len do + // Comment : In step 4.1, no_of_bits_to_return + // is used as a 32-bit string. + // 4.1 temp = temp || Hash (counter || no_of_bits_to_return || + // input_string). + // 4.2 counter = counter + 1. + // 5. requested_bits = Leftmost (no_of_bits_to_return) of temp. + // 6. Return SUCCESS and requested_bits. + byte[] temp = new byte[(seedLength + 7) / 8]; + + int len = temp.Length / digest.getDigestSize(); + int counter = 1; + + byte[] dig = new byte[digest.getDigestSize()]; + + for (int i = 0; i <= len; i++) + { + digest.Update((byte)counter); + + digest.Update((byte)(seedLength >> 24)); + digest.Update((byte)(seedLength >> 16)); + digest.Update((byte)(seedLength >> 8)); + digest.Update((byte)seedLength); + + digest.BlockUpdate(seedMaterial, 0, seedMaterial.Length); + + digest.DoFinal(dig, 0); + + int bytesToCopy = ((temp.Length - i * dig.Length) > dig.Length) + ? dig.Length + : (temp.Length - i * dig.Length); + Array.Copy(dig, 0, temp, i * dig.Length, bytesToCopy); + + counter++; + } + + // do a left shift to get rid of excess bits. + if (seedLength % 8 != 0) + { + int shift = 8 - (seedLength % 8); + int carry = 0; + + for (int i = 0; i != temp.Length; i++) + { + uint b = temp[i] & 0xff; + temp[i] = (byte)((b >> shift) | (carry << (8 - shift))); + carry = b; + } + } + + return temp; + } + + internal static boolean isTooLarge(byte[] bytes, int maxBytes) + { + return bytes != null && bytes.Length > maxBytes; + } + } +} diff --git a/crypto/test/src/crypto/prng/test/CtrDrbgTest.cs b/crypto/test/src/crypto/prng/test/CtrDrbgTest.cs new file mode 100644 index 000000000..e081ec132 --- /dev/null +++ b/crypto/test/src/crypto/prng/test/CtrDrbgTest.cs @@ -0,0 +1,524 @@ +using System; + +using Org.BouncyCastle.Crypto.Engines; +using Org.BouncyCastle.Crypto.Prng.Drbg; +using Org.BouncyCastle.Utilities.Test; +using Org.BouncyCastle.Utilities.Encoders; +using NUnit.Framework; +using Org.BouncyCastle.Utilities; +using Org.BouncyCastle.Crypto.Parameters; + +namespace Org.BouncyCastle.Crypto.Prng.Test +{ + /** + * CTR DRBG Test + */ + [TestFixture] + public class CtrDrbgTest : SimpleTest + { + public override String Name { + get { + return "CTRDRBGTest"; + } + } + + public static void main(String[] args) + { + RunTest(new CtrDrbgTest()); + } + + private DRBGTestVector[] createTestVectorData() + { + return new DRBGTestVector[] + { + new DRBGTestVector( + new DesEdeEngine(), 168, + new Bit232EntropyProvider().Get(232), + false, + "20212223242526", + 112, + new String[] + { + "ABC88224514D0316EA3D48AEE3C9A2B4", + "D3D3F372E43E7ABDC4FA293743EED076" + } + ), + new DRBGTestVector( + new DesEdeEngine(), 168, + new Bit232EntropyProvider().Get(232), + false, + "20212223242526", + 112, + new String[] + { + "D4564EE072ACA5BD279536E14F94CB12", + "1CCD9AFEF15A9679BA75E35225585DEA" + } + ) + .addAdditionalInput("606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C") + .addAdditionalInput("A0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBC"), + new DRBGTestVector( + new DesEdeEngine(), 168, + new Bit232EntropyProvider().Get(232), + false, + "20212223242526", + 112, + new String[] + { + "760BED7D92B083B10AF31CF0656081EB", + "FD1AC41482384D823CF3FD6F0E6C88B3" + } + ) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C"), + new DRBGTestVector( + new DesEdeEngine(), 168, + new Bit232EntropyProvider().Get(232), + false, + "20212223242526", + 112, + new String[] + { + "7A4C1D7ADC8A67FDB50100ED23583A2C", + "43044D311C0E07541CA5C8B0916976B2" + } + ) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C") + .addAdditionalInput("606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C") + .addAdditionalInput("A0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBC"), + new DRBGTestVector( + new DesEdeEngine(), 168, + new Bit232EntropyProvider().Get(232), + true, + "20212223242526", + 112, + new String[] + { + "8FB78ABCA75C9F284E974E36141866BC", + "9D9745FF31C42A4488CBB771B13B5D86" + } + ), + new DRBGTestVector( + new DesEdeEngine(), 168, + new Bit232EntropyProvider().Get(232), + true, + "20212223242526", + 112, + new String[] + { + "0E389920A09B485AA4ABD0CA7E60D89C", + "F4478EC6659A0D3577625B0C73A211DD" + } + ) + .addAdditionalInput("606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C") + .addAdditionalInput("A0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBC"), + new DRBGTestVector( + new DesEdeEngine(), 168, + new Bit232EntropyProvider().Get(232), + true, + "20212223242526", + 112, + new String[] + { + "64983055D014550B39DE699E43130B64", + "035FDDA8582A2214EC722C410A8D95D3" + } + ) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C"), + new DRBGTestVector( + new DesEdeEngine(), 168, + new Bit232EntropyProvider().Get(232), + true, + "20212223242526", + 112, + new String[] + { + "A29C1A8C42FBC562D7D1DBA7DC541FFE", + "0BDA66B049429061C013E4228C2F44C6" + } + ) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C") + .addAdditionalInput("606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C") + .addAdditionalInput("A0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBC"), + new DRBGTestVector( + new AesFastEngine(), 128, + new Bit256EntropyProvider().Get(256), + false, + "2021222324252627", + 128, + new String[] + { + "8CF59C8CF6888B96EB1C1E3E79D82387AF08A9E5FF75E23F1FBCD4559B6B997E", + "69CDEF912C692D61B1DA4C05146B52EB7B8849BD87937835328254EC25A9180E" + } + ), + new DRBGTestVector( + new AesFastEngine(), 128, + new Bit256EntropyProvider().Get(256), + false, + "2021222324252627", + 128, + new String[] + { + "E8C74A4B7BFFB53BEB80E78CA86BB6DF70E2032AEB473E0DD54D2339CEFCE9D0", + "26B3F823B4DBAFC23B141375E10B3AEB7A0B5DEF1C7D760B6F827D01ECD17AC7" + } + ) + .addAdditionalInput("606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F") + .addAdditionalInput("A0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBF"), + new DRBGTestVector( + new AesFastEngine(), 128, + new Bit256EntropyProvider().Get(256), + false, + "2021222324252627", + 128, + new String[] + { + "18FDEFBDC43D7A36D5D6D862205765D1D701C9F237007030DF1B8E70EE4EEE29", + "9888F1D38BB1CCE31B363AA1BD9B39616876C30DEE1FF0B7BD8C4C441715C833" + } + ) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F"), + new DRBGTestVector( + new AesFastEngine(), 128, + new Bit256EntropyProvider().Get(256), + true, + "2021222324252627", + 128, + new String[] + { + "BFF4B85D68C84529F24F69F9ACF1756E29BA648DDEB825C225FA32BA490EF4A9", + "9BD2635137A52AF7D0FCBEFEFB97EA93A0F4C438BD98956C0DACB04F15EE25B3" + } + ), + new DRBGTestVector( + new AesFastEngine(), 128, + new Bit256EntropyProvider().Get(256), + true, + "2021222324252627", + 128, + new String[] + { + "4573AC8BBB33D7CC4DBEF3EEDF6EAE748B536C3A1082CEE4948CDB51C83A7F9C", + "99C628CDD87BD8C2F1FE443AA7F761DA16886436326323354DA6311FFF5BC678" + } + ) + .addAdditionalInput("606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F") + .addAdditionalInput("A0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBF"), + new DRBGTestVector( + new AesFastEngine(), 128, + new Bit256EntropyProvider().Get(256), + true, + "2021222324252627", + 128, + new String[] + { + "F324104E2FA14F79D8AA60DF06B93B3BC157324958F0A7EE1E193677A70E0250", + "78F4C840134F40DC001BFAD3A90B5EF4DEBDBFAC3CFDF0CD69A89DC4FD34713F" + } + ) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F"), + new DRBGTestVector( + new AesFastEngine(), 192, + new Bit320EntropyProvider().Get(320), + false, + "202122232425262728292A2B", + 192, + new String[] + { + "E231244B3235B085C81604424357E85201E3828B5C45568679A5555F867AAC8C", + "DDD0F7BCCADADAA31A67652259CE569A271DD85CF66C3D6A7E9FAED61F38D219" + } + ) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F6061626364656667"), + new DRBGTestVector( + new AesFastEngine(), 192, + new Bit320EntropyProvider().Get(320), + true, + "202122232425262728292A2B", + 192, + new String[] + { + "F780D4A2C25CF8EE7407D948EC0B724A4235D8B20E65081392755CA7912AD7C0", + "BA14617F915BA964CB79276BDADC840C14B631BBD1A59097054FA6DFF863B238" + } + ) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F6061626364656667"), + new DRBGTestVector( + new AesFastEngine(), 256, + new Bit384EntropyProvider().Get(384), + false, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[] + { + "47111E146562E9AA2FB2A1B095D37A8165AF8FC7CA611D632BE7D4C145C83900", + "98A28E3B1BA363C9DAF0F6887A1CF52B833D3354D77A7C10837DD63DD2E645F8" + } + ) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F") + .addAdditionalInput("606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F") + .addAdditionalInput("A0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECF"), + new DRBGTestVector( + new AesFastEngine(), 256, + new Bit384EntropyProvider().Get(384), + true, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[] + { + "71BB3F9C9CEAF4E6C92A83EB4C7225010EE150AC75E23F5F77AD5073EF24D88A", + "386DEBBBF091BBF0502957B0329938FB836B82E594A2F5FDD5EB28D4E35528F4" + } + ) + .addAdditionalInput("606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F") + .addAdditionalInput("A0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECF"), + new DRBGTestVector( + new AesFastEngine(), 256, + new Bit384EntropyProvider().Get(384), + true, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[] + { + "1A2E3FEE9056E98D375525FDC2B63B95B47CE51FCF594D804BD5A17F2E01139B", + "601F95384F0D85946301D1EACE8F645A825CE38F1E2565B0C0C439448E9CA8AC" + } + ) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F"), + new DRBGTestVector( + new AesFastEngine(), 256, + new Bit384EntropyProvider().Get(384), + true, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[] + { + "EAE6BCE781807E524D26605EA198077932D01EEB445B9AC6C5D99C101D29F46E", + "738E99C95AF59519AAD37FF3D5180986ADEBAB6E95836725097E50A8D1D0BD28" + } + ) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F") + .addAdditionalInput("606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F") + .addAdditionalInput("A0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECF"), + new DRBGTestVector( + new AesFastEngine(), 256, + new Bit384EntropyProvider().Get(384), + true, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[] + { + "eae6bce781807e524d26605ea198077932d01eeb445b9ac6c5d99c101d29f46e30b27377", + "ec51b55b49904c3ff9e13939f1cf27398993e1b3acb2b0be0be8761261428f0aa8ba2657" + } + ) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F") + .addAdditionalInput("606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F") + .addAdditionalInput("A0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECF") + }; + } + + public override void PerformTest() + { + DRBGTestVector[] tests = createTestVectorData(); + SP80090Drbg d; + DRBGTestVector tv; + byte[] output; + + for (int i = 0; i != tests.Length; i++) + { + tv = tests[i]; + + byte[] nonce = tv.nonce(); + byte[] personalisationString = tv.personalizationString(); + + d = new CtrSP800Drbg(tv.getCipher(), tv.keySizeInBits(), tv.securityStrength(), tv.entropySource(), personalisationString, nonce); + + output = new byte[tv.expectedValue(0).Length]; + + d.Generate(output, tv.additionalInput(0), tv.predictionResistance()); + + byte[] expected = tv.expectedValue(0); + + if (!AreEqual(expected, output)) + { + Fail("Test #" + (i + 1) + ".1 failed, expected " + Hex.ToHexString(tv.expectedValue(0)) + " got " + Hex.ToHexString(output)); + } + + output = new byte[tv.expectedValue(0).Length]; + + d.Generate(output, tv.additionalInput(1), tv.predictionResistance()); + + expected = tv.expectedValue(1); + if (!AreEqual(expected, output)) + { + Fail("Test #" + (i + 1) + ".2 failed, expected " + Hex.ToHexString(tv.expectedValue(1)) + " got " + Hex.ToHexString(output)); + } + } + + // DESede/TDEA key parity test + tv = tests[0]; + + SP80090Drbg drbg = new CtrSP800Drbg(new KeyParityCipher(tv.getCipher()), tv.keySizeInBits(), tv.securityStrength(), tv.entropySource(), tv.personalizationString(), tv.nonce()); + + output = new byte[tv.expectedValue(0).Length]; + + drbg.Generate(output, tv.additionalInput(0), tv.predictionResistance()); + + // Exception tests + try + { + d = new CtrSP800Drbg(new AesEngine(), 256, 256, new Bit232EntropyProvider().Get(128), null, null); + Fail("no exception thrown"); + } + catch (ArgumentException e) + { + if (!e.Message.Equals("Not enough entropy for security strength required")) + { + Fail("Wrong exception", e); + } + } + + try + { + d = new CtrSP800Drbg(new DesEdeEngine(), 256, 256, new Bit232EntropyProvider().Get(232), null, null); + Fail("no exception thrown"); + } + catch (ArgumentException e) + { + if (!e.Message.Equals("Requested security strength is not supported by block cipher and key size")) + { + Fail("Wrong exception", e); + } + } + + try + { + d = new CtrSP800Drbg(new DesEdeEngine(), 168, 256, new Bit232EntropyProvider().Get(232), null, null); + Fail("no exception thrown"); + } + catch (ArgumentException e) + { + if (!e.Message.Equals("Requested security strength is not supported by block cipher and key size")) + { + Fail("Wrong exception", e); + } + } + + try + { + d = new CtrSP800Drbg(new AesEngine(), 192, 256, new Bit232EntropyProvider().Get(232), null, null); + Fail("no exception thrown"); + } + catch (ArgumentException e) + { + if (!e.Message.Equals("Requested security strength is not supported by block cipher and key size")) + { + Fail("Wrong exception", e); + } + } + } + + internal class Bit232EntropyProvider : TestEntropySourceProvider + { + internal Bit232EntropyProvider() : base(Hex.Decode( + "000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C" + + "808182838485868788898A8B8C8D8E8F909192939495969798999A9B9C" + + "C0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDC"), true) + { } + } + + internal class Bit256EntropyProvider : TestEntropySourceProvider + { + internal Bit256EntropyProvider(): base(Hex.Decode( + "0001020304050607" + + "08090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F" + + "8081828384858687" + + "88898A8B8C8D8E8F909192939495969798999A9B9C9D9E9F" + + "C0C1C2C3C4C5C6C7" + + "C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDF"), true) + { } + } + + internal class Bit320EntropyProvider : TestEntropySourceProvider + { + internal Bit320EntropyProvider() : base(Hex.Decode( + "000102030405060708090A0B0C0D0E0F" + + "101112131415161718191A1B1C1D1E1F2021222324252627" + + "808182838485868788898A8B8C8D8E8F" + + "909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6A7" + + "C0C1C2C3C4C5C6C7C8C9CACBCCCDCECF" + + "D0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7"), true) + { } + } + + internal class Bit384EntropyProvider : TestEntropySourceProvider + { + internal Bit384EntropyProvider() : base(Hex.Decode( + "000102030405060708090A0B0C0D0E0F1011121314151617" + + "18191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F" + + "808182838485868788898A8B8C8D8E8F9091929394959697" + + "98999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAF" + + "C0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7" + + "D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEF"), true) + { } + } + + internal class KeyParityCipher : IBlockCipher + { + private IBlockCipher cipher; + + internal KeyParityCipher(IBlockCipher cipher) + { + this.cipher = cipher; + } + + public void Init(bool forEncryption, ICipherParameters parameters) + { + byte[] k = Arrays.Clone(((KeyParameter)parameters).GetKey()); + + DesEdeParameters.SetOddParity(k); + + if (!Arrays.AreEqual(((KeyParameter)parameters).GetKey(), k)) + { + throw new ArgumentException("key not odd parity"); + } + + cipher.Init(forEncryption, parameters); + } + + public String AlgorithmName + { + get + { + return cipher.AlgorithmName; + } + } + + public bool IsPartialBlockOkay + { + get + { + return false; + } + } + + public int GetBlockSize() + { + return cipher.GetBlockSize(); + } + + public int ProcessBlock(byte[] input, int inOff, byte[] output, int outOff) + { + return cipher.ProcessBlock(input, inOff, output, outOff); + } + + public void Reset() + { + cipher.Reset(); + } + } + + } + +} diff --git a/crypto/test/src/crypto/prng/test/DRGBTestVector.cs b/crypto/test/src/crypto/prng/test/DRGBTestVector.cs new file mode 100644 index 000000000..a4129b9f8 --- /dev/null +++ b/crypto/test/src/crypto/prng/test/DRGBTestVector.cs @@ -0,0 +1,129 @@ +using Org.BouncyCastle.Utilities.Encoders; +using System; +using System.Collections.Generic; +using System.Text; + +namespace Org.BouncyCastle.Crypto.Prng.Test +{ + public class DRBGTestVector + { + private IDigest _digest; + private IBlockCipher _cipher; + private int _keySizeInBits; + private IEntropySource _eSource; + private bool _pr; + private String _nonce; + private String _personalisation; + private int _ss; + private String[] _ev; + private List _ai = new List(); + + public DRBGTestVector(IDigest digest, IEntropySource eSource, bool predictionResistance, String nonce, int securityStrength, String[] expected) + { + _digest = digest; + _eSource = eSource; + _pr = predictionResistance; + _nonce = nonce; + _ss = securityStrength; + _ev = expected; + _personalisation = null; + } + + public DRBGTestVector(IBlockCipher cipher, int keySizeInBits, IEntropySource eSource, bool predictionResistance, String nonce, int securityStrength, String[] expected) + { + _cipher = cipher; + _keySizeInBits = keySizeInBits; + _eSource = eSource; + _pr = predictionResistance; + _nonce = nonce; + _ss = securityStrength; + _ev = expected; + _personalisation = null; + } + + public IDigest getDigest() + { + return _digest; + } + + public IBlockCipher getCipher() + { + return _cipher; + } + + public int keySizeInBits() + { + return _keySizeInBits; + } + + public DRBGTestVector addAdditionalInput(String input) + { + _ai.Add(input); + + return this; + } + + public DRBGTestVector setPersonalizationString(String p) + { + _personalisation = p; + + return this; + } + + public IEntropySource entropySource() + { + return _eSource; + } + + public bool predictionResistance() + { + return _pr; + } + + public byte[] nonce() + { + if (_nonce == null) + { + return null; + } + + return Hex.Decode(_nonce); + } + + public byte[] personalizationString() + { + if (_personalisation == null) + { + return null; + } + + return Hex.Decode(_personalisation); + } + + public int securityStrength() + { + return _ss; + } + + public byte[] expectedValue(int index) + { + return Hex.Decode(_ev[index]); + } + + public byte[] additionalInput(int position) + { + int len = _ai.Count; + byte[] rv; + if (position >= len) + { + rv = null; + } + else + { + rv = Hex.Decode((string)(_ai[position])); + } + return rv; + } + + } +} diff --git a/crypto/test/src/crypto/prng/test/HMacDrbgTest.cs b/crypto/test/src/crypto/prng/test/HMacDrbgTest.cs new file mode 100644 index 000000000..b8d383663 --- /dev/null +++ b/crypto/test/src/crypto/prng/test/HMacDrbgTest.cs @@ -0,0 +1,511 @@ + +using System; + +using Org.BouncyCastle.Crypto.Digests; +using Org.BouncyCastle.Crypto.Macs; +using Org.BouncyCastle.Crypto.Prng.Drbg; +using Org.BouncyCastle.Utilities.Test; +using Org.BouncyCastle.Utilities.Encoders; +using NUnit.Framework; + +namespace Org.BouncyCastle.Crypto.Prng.Test +{ + /** + * HMAC SP800-90 DRBG + */ + [TestFixture] + public class HMacDrbgTest : SimpleTest + { + public override String Name + { + get + { + return "HMacDRBG"; + } + } + + public static void main(String[] args) + { + RunTest(new HMacDrbgTest()); + } + + [Test] + public void HMacDrbgTestFunction() + { + string resultText = Perform().ToString(); + + Assert.AreEqual(Name + ": Okay", resultText); + } + + private DRBGTestVector[] createTestVectorData() + { + return new DRBGTestVector[] + { + new DRBGTestVector( + new Sha1Digest(), + new SHA1EntropyProvider().Get(440), + false, + "2021222324", + 80, + new String[] + { + "5A7D3B449F481CB38DF79AD2B1FCC01E57F8135E8C0B22CD0630BFB0127FB5408C8EFC17A929896E", + "82cf772ec3e84b00fc74f5df104efbfb2428554e9ce367d03aeade37827fa8e9cb6a08196115d948" + }), + new DRBGTestVector( + new Sha1Digest(), + new SHA1EntropyProvider().Get(440), + false, + "2021222324", + 80, + new String[] + { + "B3BD05246CBA12A64735A4E3FDE599BC1BE30F439BD060208EEA7D71F9D123DF47B3CE069D98EDE6", + "B5DADA380E2872DF935BCA55B882C8C9376902AB639765472B71ACEBE2EA8B1B6B49629CB67317E0" + }) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F70717273747576"), + new DRBGTestVector( + new Sha1Digest(), + new SHA1EntropyProvider().Get(440), + false, + "2021222324", + 80, + new String[] + { + "C7AAAC583C6EF6300714C2CC5D06C148CFFB40449AD0BB26FAC0497B5C57E161E36681BCC930CE80", + "6EBD2B7B5E0A2AD7A24B1BF9A1DBA47D43271719B9C37B7FE81BA94045A14A7CB514B446666EA5A7" + }) + .addAdditionalInput("606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F90919293949596") + .addAdditionalInput("A0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6"), + new DRBGTestVector( + new Sha1Digest(), + new SHA1EntropyProvider().Get(440), + true, + "2021222324", + 80, + new String[] + { + "FEC4597F06A3A8CC8529D59557B9E661053809C0BC0EFC282ABD87605CC90CBA9B8633DCB1DAE02E", + "84ADD5E2D2041C01723A4DE4335B13EFDF16B0E51A0AD39BD15E862E644F31E4A2D7D843E57C5968" + }), + new DRBGTestVector( + new Sha1Digest(), + new SHA1EntropyProvider().Get(440), + true, + "2021222324", + 80, + new String[] + { + "6C37FDD729AA40F80BC6AB08CA7CC649794F6998B57081E4220F22C5C283E2C91B8E305AB869C625", + "CAF57DCFEA393B9236BF691FA456FEA7FDF1DF8361482CA54D5FA723F4C88B4FA504BF03277FA783" + }) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F70717273747576"), + new DRBGTestVector( + new Sha1Digest(), + new SHA1EntropyProvider().Get(440), + true, + "2021222324", + 80, + new String[] + { + "A1BA8FA58BB5013F43F7B6ED52B4539FA16DC77957AEE815B9C07004C7E992EB8C7E591964AFEEA2", + "84264A73A818C95C2F424B37D3CC990B046FB50C2DC64A164211889A010F2471A0912FFEA1BF0195" + }) + .addAdditionalInput("606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F90919293949596") + .addAdditionalInput("A0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6"), + new DRBGTestVector( + new Sha256Digest(), + new SHA256EntropyProvider().Get(440), + false, + "2021222324252627", + 128, + new String[] + { + "D67B8C1734F46FA3F763CF57C6F9F4F2" + + "DC1089BD8BC1F6F023950BFC5617635208C8501238AD7A44" + + "00DEFEE46C640B61AF77C2D1A3BFAA90EDE5D207406E5403", + "8FDAEC20F8B421407059E3588920DA7E" + + "DA9DCE3CF8274DFA1C59C108C1D0AA9B0FA38DA5C792037C" + + "4D33CD070CA7CD0C5608DBA8B885654639DE2187B74CB263" + }), + new DRBGTestVector( + new Sha256Digest(), + new SHA256EntropyProvider().Get(440), + true, + "2021222324252627", + 128, + new String[] + { + "FABD0AE25C69DC2EFDEFB7F20C5A31B5" + + "7AC938AB771AA19BF8F5F1468F665C938C9A1A5DF0628A56" + + "90F15A1AD8A613F31BBD65EEAD5457D5D26947F29FE91AA7", + "6BD925B0E1C232EFD67CCD84F722E927" + + "ECB46AB2B740014777AF14BA0BBF53A45BDBB62B3F7D0B9C" + + "8EEAD057C0EC754EF8B53E60A1F434F05946A8B686AFBC7A" + }), + new DRBGTestVector( + new Sha384Digest(), + new SHA384EntropyProvider().Get(888), + false, + "202122232425262728292A2B", + 192, + new String[]{ + "03AB8BCE4D1DBBB636C5C5B7E1C58499FEB1C619CDD11D35" + + "CD6CF6BB8F20EF27B6F5F9054FF900DB9EBF7BF30ED4DCBB" + + "BC8D5B51C965EA226FFEE2CA5AB2EFD00754DC32F357BF7A" + + "E42275E0F7704DC44E50A5220AD05AB698A22640AC634829", + "B907E77144FD55A54E9BA1A6A0EED0AAC780020C41A15DD8" + + "9A6C163830BA1D094E6A17100FF71EE30A96E1EE04D2A966" + + "03832A4E404F1966C2B5F4CB61B9927E8D12AC1E1A24CF23" + + "88C14E8EC96C35181EAEE32AAA46330DEAAFE5E7CE783C74"}) + .setPersonalizationString( + "404142434445464748494A4B4C4D4E" + + "4F505152535455565758595A5B5C5D5E5F60616263646566" + + "6768696A6B6C6D6E6F707172737475767778797A7B7C7D7E" + + "7F808182838485868788898A8B8C8D8E8F90919293949596" + + "9798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAE"), + new DRBGTestVector( + new Sha384Digest(), + new SHA384EntropyProvider().Get(888), + true, + "202122232425262728292A2B", + 192, + new String[]{ + "804A3AD720F4FCE8738D0632514FEF16430CB7D63A8DF1A5" + + "F02A3CE3BD7ED6A668B69E63E2BB93F096EE753D6194A0F1" + + "A32711063653009636337D22167CC4402D019AC216FA574F" + + "091CF6EA283568D737A77BE38E8F09382C69E76B142ABC3A", + "73B8E55C753202176A17B9B9754A9FE6F23B01861FCD4059" + + "6AEAA301AF1AEF8AF0EAF22FBF34541EFFAB1431666ACACC" + + "759338C7E28672819D53CFEF10A3E19DAFBD53295F1980A9" + + "F491504A2725506784B7AC826D92C838A8668171CAAA86E7"}) + .setPersonalizationString( + "404142434445464748494A4B4C4D4E" + + "4F505152535455565758595A5B5C5D5E5F60616263646566" + + "6768696A6B6C6D6E6F707172737475767778797A7B7C7D7E" + + "7F808182838485868788898A8B8C8D8E8F90919293949596" + + "9798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAE"), + new DRBGTestVector( + new Sha512Digest(), + new SHA512EntropyProvider().Get(888), + false, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[]{ + "2A5FF6520C20F66E" + + "D5EA431BD4AEAC58F975EEC9A015137D5C94B73AA09CB8B5" + + "9D611DDEECEB34A52BB999424009EB9EAC5353F92A6699D2" + + "0A02164EEBBC6492941E10426323898465DFD731C7E04730" + + "60A5AA8973841FDF3446FB6E72A58DA8BDA2A57A36F3DD98" + + "6DF85C8A5C6FF31CDE660BF8A841B21DD6AA9D3AC356B87B", + "0EDC8D7D7CEEC7FE" + + "36333FB30C0A9A4B27AA0BECBF075568B006C1C3693B1C29" + + "0F84769C213F98EB5880909EDF068FDA6BFC43503987BBBD" + + "4FC23AFBE982FE4B4B007910CC4874EEC217405421C8D8A1" + + "BA87EC684D0AF9A6101D9DB787AE82C3A6A25ED478DF1B12" + + "212CEC325466F3AC7C48A56166DD0B119C8673A1A9D54F67"}) + .setPersonalizationString( + "404142434445464748494A4B4C4D4E" + + "4F505152535455565758595A5B5C5D5E5F60616263646566" + + "6768696A6B6C6D6E6F707172737475767778797A7B7C7D7E" + + "7F808182838485868788898A8B8C8D8E8F90919293949596" + + "9798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAE"), + new DRBGTestVector( + new Sha512Digest(), + new SHA512EntropyProvider().Get(888), + true, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[]{ + "AAE4DC3C9ECC74D9" + + "061DD527117EF3D29E1E52B26853C539D6CA797E8DA3D0BB" + + "171D8E30B8B194D8C28F7F6BE3B986B88506DC6A01B294A7" + + "165DD1C3470F7BE7B396AA0DB7D50C4051E7C7E1C8A7D21A" + + "2B5878C0BCB163CAA79366E7A1162FDC88429616CD3E6977" + + "8D327520A6BBBF71D8AA2E03EC4A9DAA0E77CF93E1EE30D2 ", + "129FF6D31A23FFBC" + + "870632B35EE477C2280DDD2ECDABEDB900C78418BE2D243B" + + "B9D8E5093ECE7B6BF48638D8F704D134ADDEB7F4E9D5C142" + + "CD05683E72B516486AF24AEC15D61E81E270DD4EBED91B62" + + "12EB8896A6250D5C8BC3A4A12F7E3068FBDF856F47EB23D3" + + "79F82C1EBCD1585FB260B9C0C42625FBCEE68CAD773CD5B1"}) + .setPersonalizationString( + "404142434445464748494A4B4C4D4E" + + "4F505152535455565758595A5B5C5D5E5F60616263646566" + + "6768696A6B6C6D6E6F707172737475767778797A7B7C7D7E" + + "7F808182838485868788898A8B8C8D8E8F90919293949596" + + "9798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAE"), + new DRBGTestVector( + new Sha512Digest(), + new SHA512EntropyProvider().Get(888), + false, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[]{ + "7AE31A2DEC31075F" + + "E5972660C16D22ECC0D415C5693001BE5A468B590BC1AE2C" + + "43F647F8D681AEEA0D87B79B0B4E5D089CA2C9D327534234" + + "0254E6B04690D77A71A294DA9568479EEF8BB2A2110F18B6" + + "22F60F35235DE0E8F9D7E98105D84AA24AF0757AF005DFD5" + + "2FA51DE3F44FCE0C5F3A27FCE8B0F6E4A3F7C7B53CE34A3D", + "D83A8084630F286D" + + "A4DB49B9F6F608C8993F7F1397EA0D6F4A72CF3EF2733A11" + + "AB823C29F2EBDEC3EDE962F93D920A1DB59C84E1E879C29F" + + "5F9995FC3A6A3AF9B587CA7C13EA197D423E81E1D6469942" + + "B6E2CA83A97E91F6B298266AC148A1809776C26AF5E239A5" + + "5A2BEB9E752203A694E1F3FE2B3E6A0C9C314421CDB55FBD "}) + .setPersonalizationString( + "404142434445464748494A4B4C4D4E" + + "4F505152535455565758595A5B5C5D5E5F60616263646566" + + "6768696A6B6C6D6E6F707172737475767778797A7B7C7D7E" + + "7F808182838485868788898A8B8C8D8E8F90919293949596" + + "9798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAE") + .addAdditionalInput( + "606162636465666768696A6B6C6D6E" + + "6F707172737475767778797A7B7C7D7E7F80818283848586" + + "8788898A8B8C8D8E8F909192939495969798999A9B9C9D9E" + + "9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6" + + "B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCE") + .addAdditionalInput( + "A0A1A2A3A4A5A6A7A8A9AAABACADAE" + + "AFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6" + + "C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDE" + + "DFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6" + + "F7F8F9FAFBFCFDFEFF000102030405060708090A0B0C0D0E"), + new DRBGTestVector( + new Sha512Digest(), + new SHA512EntropyProvider().Get(888), + true, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[]{ + "28FD6060C4F35F4D" + + "317AB2060EE32019E0DAA330F3F5650BBCA57CB67EE6AF1C" + + "6F25D1B01F3601EDA85DC2ED29A9B2BA4C85CF491CE7185F" + + "1A2BD9378AE3C655BD1CEC2EE108AE7FC382989F6D4FEA8A" + + "B01499697C2F07945CE02C5ED617D04287FEAF3BA638A4CE" + + "F3BB6B827E40AF16279580FCF1FDAD830930F7FDE341E2AF", + "C0B1601AFE39338B" + + "58DC2BE7C256AEBE3C21C5A939BEEC7E97B3528AC420F0C6" + + "341847187666E0FF578A8EB0A37809F877365A28DF2FA0F0" + + "6354A6F02496747369375B9A9D6B756FDC4A8FB308E08256" + + "9D79A85BB960F747256626389A3B45B0ABE7ECBC39D5CD7B" + + "2C18DF2E5FDE8C9B8D43474C54B6F9839468445929B438C7"}), + new DRBGTestVector( + new Sha512Digest(), + new SHA512EntropyProvider().Get(888), + true, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[]{ + "72691D2103FB567C" + + "CD30370715B36666F63430087B1C688281CA0974DB456BDB" + + "A7EB5C48CFF62EA05F9508F3B530CE995A272B11EC079C13" + + "923EEF8E011A93C19B58CC6716BC7CB8BD886CAA60C14D85" + + "C023348BD77738C475D6C7E1D9BFF4B12C43D8CC73F838DC" + + "4F8BD476CF8328EEB71B3D873D6B7B859C9B21065638FF95", + "8570DA3D47E1E160" + + "5CF3E44B8D328B995EFC64107B6292D1B1036B5F88CE3160" + + "2F12BEB71D801C0942E7C0864B3DB67A9356DB203490D881" + + "24FE86BCE38AC2269B4FDA6ABAA884039DF80A0336A24D79" + + "1EB3067C8F5F0CF0F18DD73B66A7B316FB19E02835CC6293" + + "65FCD1D3BE640178ED9093B91B36E1D68135F2785BFF505C"}) + .addAdditionalInput( + "606162636465666768696A6B6C6D6E" + + "6F707172737475767778797A7B7C7D7E7F80818283848586" + + "8788898A8B8C8D8E8F909192939495969798999A9B9C9D9E" + + "9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6" + + "B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCE") + .addAdditionalInput( + "A0A1A2A3A4A5A6A7A8A9AAABACADAE" + + "AFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6" + + "C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDE" + + "DFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6" + + "F7F8F9FAFBFCFDFEFF000102030405060708090A0B0C0D0E"), + new DRBGTestVector( + new Sha512Digest(), + new SHA512EntropyProvider().Get(888), + true, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[]{ + "AAE4DC3C9ECC74D9" + + "061DD527117EF3D29E1E52B26853C539D6CA797E8DA3D0BB" + + "171D8E30B8B194D8C28F7F6BE3B986B88506DC6A01B294A7" + + "165DD1C3470F7BE7B396AA0DB7D50C4051E7C7E1C8A7D21A" + + "2B5878C0BCB163CAA79366E7A1162FDC88429616CD3E6977" + + "8D327520A6BBBF71D8AA2E03EC4A9DAA0E77CF93E1EE30D2 ", + "129FF6D31A23FFBC" + + "870632B35EE477C2280DDD2ECDABEDB900C78418BE2D243B" + + "B9D8E5093ECE7B6BF48638D8F704D134ADDEB7F4E9D5C142" + + "CD05683E72B516486AF24AEC15D61E81E270DD4EBED91B62" + + "12EB8896A6250D5C8BC3A4A12F7E3068FBDF856F47EB23D3" + + "79F82C1EBCD1585FB260B9C0C42625FBCEE68CAD773CD5B1"}) + .setPersonalizationString( + "404142434445464748494A4B4C4D4E" + + "4F505152535455565758595A5B5C5D5E5F60616263646566" + + "6768696A6B6C6D6E6F707172737475767778797A7B7C7D7E" + + "7F808182838485868788898A8B8C8D8E8F90919293949596" + + "9798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAE"), + new DRBGTestVector( + new Sha512Digest(), + new SHA512EntropyProvider().Get(888), + true, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[]{ + "B8E827652175E6E0" + + "6E513C7BE94B5810C14ED94AD903647940CAEB7EE014C848" + + "8DCBBE6D4D6616D06656A3DC707CDAC4F02EE6D8408C065F" + + "CB068C0760DA47C5D60E5D70D09DC3929B6979615D117F7B" + + "EDCC661A98514B3A1F55B2CBABDCA59F11823E4838065F1F" + + "8431CBF28A577738234AF3F188C7190CC19739E72E9BBFFF", + "7ED41B9CFDC8C256" + + "83BBB4C553CC2DC61F690E62ABC9F038A16B8C519690CABE" + + "BD1B5C196C57CF759BB9871BE0C163A57315EA96F615136D" + + "064572F09F26D659D24211F9610FFCDFFDA8CE23FFA96735" + + "7595182660877766035EED800B05364CE324A75EB63FD9B3" + + "EED956D147480B1D0A42DF8AA990BB628666F6F61D60CBE2"}) + .setPersonalizationString( + "404142434445464748494A4B4C4D4E" + + "4F505152535455565758595A5B5C5D5E5F60616263646566" + + "6768696A6B6C6D6E6F707172737475767778797A7B7C7D7E" + + "7F808182838485868788898A8B8C8D8E8F90919293949596" + + "9798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAE") + .addAdditionalInput( + "606162636465666768696A6B6C6D6E" + + "6F707172737475767778797A7B7C7D7E7F80818283848586" + + "8788898A8B8C8D8E8F909192939495969798999A9B9C9D9E" + + "9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6" + + "B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCE") + .addAdditionalInput( + "A0A1A2A3A4A5A6A7A8A9AAABACADAE" + + "AFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6" + + "C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDE" + + "DFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6" + + "F7F8F9FAFBFCFDFEFF000102030405060708090A0B0C0D0E") + }; + } + + public override void PerformTest() + { + DRBGTestVector[] tests = createTestVectorData(); + SP80090Drbg d; + + for (int i = 0; i != tests.Length; i++) + { + DRBGTestVector tv = tests[i]; + + byte[] nonce = tv.nonce(); + byte[] personalisationString = tv.personalizationString(); + + d = new HMacSP800Drbg(new HMac(tv.getDigest()), tv.securityStrength(), tv.entropySource(), personalisationString, nonce); + + byte[] output = new byte[tv.expectedValue(0).Length]; + + d.Generate(output, tv.additionalInput(0), tv.predictionResistance()); + + byte[] expected = tv.expectedValue(0); + + if (!AreEqual(expected, output)) + { + Fail("Test #" + (i + 1) + ".1 failed, expected " + Hex.ToHexString(tv.expectedValue(0)) + " got " + Hex.ToHexString(output)); + } + + output = new byte[tv.expectedValue(0).Length]; + + d.Generate(output, tv.additionalInput(1), tv.predictionResistance()); + + expected = tv.expectedValue(1); + if (!AreEqual(expected, output)) + { + Fail("Test #" + (i + 1) + ".2 failed, expected " + Hex.ToHexString(tv.expectedValue(1)) + " got " + Hex.ToHexString(output)); + } + } + + // Exception tests + // + try + { + d = new HMacSP800Drbg(new HMac(new Sha256Digest()), 256, new SHA256EntropyProvider().Get(128), null, null); + Fail("no exception thrown"); + } + catch (ArgumentException e) + { + if (!e.Message.Equals("Not enough entropy for security strength required")) + { + Fail("Wrong exception", e); + } + } + } + + private class SHA1EntropyProvider : TestEntropySourceProvider + { + internal SHA1EntropyProvider() : base( + Hex.Decode( + "000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F30313233343536" + + "808182838485868788898A8B8C8D8E8F909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6" + + "C0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6"), true) + { + } + } + + internal class SHA256EntropyProvider : TestEntropySourceProvider + { + internal SHA256EntropyProvider() : base(Hex.Decode( + "00010203040506" + + "0708090A0B0C0D0E0F101112131415161718191A1B1C1D1E" + + "1F202122232425262728292A2B2C2D2E2F30313233343536" + + "80818283848586" + + "8788898A8B8C8D8E8F909192939495969798999A9B9C9D9E" + + "9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6" + + "C0C1C2C3C4C5C6" + + "C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDE" + + "DFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6"), true) + { + } + } + + internal class SHA384EntropyProvider : TestEntropySourceProvider + { + internal SHA384EntropyProvider() : base(Hex.Decode( + "000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F20212223242526" + + "2728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F50515253545556" + + "5758595A5B5C5D5E5F606162636465666768696A6B6C6D6E" + + "808182838485868788898A8B8C8D8E" + + "8F909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6" + + "A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBE" + + "BFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6" + + "D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEE" + + "C0C1C2C3C4C5C6C7C8C9CACBCCCDCE" + + "CFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6" + + "E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6F7F8F9FAFBFCFDFE" + + "FF000102030405060708090A0B0C0D0E0F10111213141516" + + "1718191A1B1C1D1E1F202122232425262728292A2B2C2D2E"), true) + { } + } + + internal class SHA512EntropyProvider : TestEntropySourceProvider + { + internal SHA512EntropyProvider() : + base(Hex.Decode( + "000102030405060708090A0B0C0D0E" + + "0F101112131415161718191A1B1C1D1E1F20212223242526" + + "2728292A2B2C2D2E2F303132333435363738393A3B3C3D3E" + + "3F404142434445464748494A4B4C4D4E4F50515253545556" + + "5758595A5B5C5D5E5F606162636465666768696A6B6C6D6E" + + "808182838485868788898A8B8C8D8E" + + "8F909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6" + + "A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBE" + + "BFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6" + + "D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEE" + + "C0C1C2C3C4C5C6C7C8C9CACBCCCDCE" + + "CFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6" + + "E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6F7F8F9FAFBFCFDFE" + + "FF000102030405060708090A0B0C0D0E0F10111213141516" + + "1718191A1B1C1D1E1F202122232425262728292A2B2C2D2E"), true) + { + } + } + } +} diff --git a/crypto/test/src/crypto/prng/test/HashDrbgTest.cs b/crypto/test/src/crypto/prng/test/HashDrbgTest.cs new file mode 100644 index 000000000..d9776e0d6 --- /dev/null +++ b/crypto/test/src/crypto/prng/test/HashDrbgTest.cs @@ -0,0 +1,471 @@ +using System; + +using Org.BouncyCastle.Crypto.Digests; +using Org.BouncyCastle.Crypto.Prng.Drbg; +using Org.BouncyCastle.Utilities.Test; +using Org.BouncyCastle.Utilities.Encoders; +using NUnit.Framework; + +namespace Org.BouncyCastle.Crypto.Prng.Test +{ + /** + * DRBG Test + */ + [TestFixture] + public class HashDrbgTest: SimpleTest + { + public override String Name + { + get + { + return "HashDRBG"; + } + } + + public static void main(String[] args) + { + RunTest(new HashDrbgTest()); + } + + private DRBGTestVector[] createTestVectorData() + { + return new DRBGTestVector[] + { + new DRBGTestVector( + new Sha1Digest(), + new SHA1EntropyProvider().Get(440), + false, + "2021222324", + 80, + new String[] + { + "9F7CFF1ECA23E750F66326969F11800F12088BA68E441D15D888B3FE12BF66FE057494F4546DE2F1", + "B77AA5C0CD55BBCEED7574AF223AFD988C7EEC8EFF4A94E5E89D26A04F58FA79F5E0D3702D7A9A6A" + } + ), + new DRBGTestVector( + new Sha1Digest(), + new SHA1EntropyProvider().Get(440), + false, + "2021222324", + 80, + new String[] + { + "AB438BD3B01A0AF85CFEE29F7D7B71621C4908B909124D430E7B406FB1086EA994C582E0D656D989", + "29D9098F987E7005314A0F51B3DD2B8122F4AED706735DE6AD5DDBF223177C1E5F3AEBC52FAB90B9" + }) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F70717273747576"), + new DRBGTestVector( + new Sha1Digest(), + new SHA1EntropyProvider().Get(440), + false, + "2021222324", + 80, + new String[] + { + "E76B4EDD5C865BC8AFD809A59B69B429AC7F4352A579BCF3F75E56249A3491F87C3CA6848B0FAB25", + "6577B6B4F87A93240B199FE51A3B335313683103DECE171E3256FB7E803586CA4E45DD242EB01F70" + }) + .addAdditionalInput("606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F90919293949596") + .addAdditionalInput("A0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6"), + new DRBGTestVector( + new Sha1Digest(), + new SHA1EntropyProvider().Get(440), + true, + "2021222324", + 80, + new String[] + { + "56EF4913373994D5539F4D7D17AFE7448CDF5E72416CC6A71A340059FA0D5AE526B23250C46C0944", + "575B37A2739814F966C63B60A2C4F149CA9ACC84FC4B25493289B085C67B2E30F5F0B99A2C349E2A" + }), + new DRBGTestVector( + new Sha1Digest(), + new SHA1EntropyProvider().Get(440), + true, + "2021222324", + 80, + new String[] + { + "532CA1165DCFF21C55592687639884AF4BC4B057DF8F41DE653AB44E2ADEC7C9303E75ABE277EDBF", + "73C2C67C696D686D0C4DBCEB5C2AF7DDF6F020B6874FAE4390F102117ECAAFF54418529A367005A0" + }) + .setPersonalizationString("404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F70717273747576"), + new DRBGTestVector( + new Sha1Digest(), + new SHA1EntropyProvider().Get(440), + true, + "2021222324", + 80, + new String[] + { + "183C242A1430E46C4ED70B4DBE1BF9AB0AB8721CDCA2A2D1820AD6F6C956858543B2AA191D8D1287", + "F196F9BD021C745CBD5AC7BFCE48EAAF0D0E7C091FBF436940E63A198EE770D9A4F0718669AF2BC9" + }) + .addAdditionalInput("606162636465666768696A6B6C6D6E6F707172737475767778797A7B7C7D7E7F808182838485868788898A8B8C8D8E8F90919293949596") + .addAdditionalInput("A0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6"), + new DRBGTestVector( + new Sha256Digest(), + new SHA256EntropyProvider().Get(440), + false, + "2021222324252627", + 128, + new String[] + { + "77E05A0E7DC78AB5D8934D5E93E82C06" + + "A07C04CEE6C9C53045EEB485872777CF3B3E35C474F976B8" + + "94BF301A86FA651F463970E89D4A0534B2ECAD29EC044E7E", + "5FF4BA493C40CFFF3B01E472C575668C" + + "CE3880B9290B05BFEDE5EC96ED5E9B2898508B09BC800EEE" + + "099A3C90602ABD4B1D4F343D497C6055C87BB956D53BF351" + } + ), + new DRBGTestVector( + new Sha256Digest(), + new SHA256EntropyProvider().Get(440), + true, + "2021222324252627", + 128, + new String[] + { + "92275523C70E567BCF9B35EC50B933F8" + + "12616DF586B7F72EE1BC7735A5C2654373CBBC72316DFF84" + + "20A33BF02B97AC8D1952583F270ACD7005CC027F4CF1187E", + "681A46B2AA8694A0FE4DEEA720927A84" + + "EAAA985E59C19F8BE0984D8CBEF8C69B754167641946E040" + + "EE2043E1CCB29DCF063C0A50830E428E6DCA262ECD77C542" + }), + new DRBGTestVector( + new Sha384Digest(), + new SHA384EntropyProvider().Get(888), + false, + "202122232425262728292A2B", + 192, + new String[] + { + "04FF23AD15E78790ADD36B438BBC097C7A11747CC2CCEEDE" + + "2C978B23B3DC63B732C953061D7764990ABFEFC47A581B92" + + "1BC0428C4F12212460E406A0F0651E7F0CB9A90ABFDB07B5" + + "25565C74F0AA085082F6CF213AAFAD0C0646895078F1E1FE", + "4F35B85F95DEE3E873054905CFD02341653E18F529930CBE" + + "14D909F37FEAF2C790D22FAE7516B4590BE35D53E2FE1A35" + + "AFE4B6607CB358589C3B4D094A1D81FE0717F1DF5BDDEB3E" + + "114F130BB781E66C22B5B770E8AE115FF39F8ADAF66DEEDF" + } + ), + new DRBGTestVector( + new Sha384Digest(), + new SHA384EntropyProvider().Get(888), + true, + "202122232425262728292A2B", + 192, + new String[] + { + "97993B78F7C31C0E876DC92EB7D6C408E09D608AD6B99D0E" + + "A2229B05A578C426334FCC8A1C7E676ED2D89A5B4CDF5B3F" + + "4ADF11936BF14F4E10909DBA9C24F4FDFFDE72351DA8E2CC" + + "3B135A395373899E5F1A5955B880CA9B9E9DD4C9CA7FA4D4", + "F5983946320E36C64EF283CA1F65D197CF81624EC6778E77" + + "0E78949D84EF21A45CDD62D1DB76920D4C2836FC6AE5299F" + + "AF1357D9701FAD10FBD88D1E2832239436D76EB271BDC3CA" + + "04425EC88BC0E89A4D5C37FFCE7C6C3ABDE9C413AE6D3FEA" + } + ), + new DRBGTestVector( + new Sha512Digest(), + new SHA512EntropyProvider().Get(888), + false, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[] + { + "DA126CF95C6BF97E" + + "2F731F2137A907ACC70FD7AC9EBACD1C6E31C74029B052E3" + + "AABC48F3B00993F2B2381F7650A55322A968C86E05DE88E6" + + "367F6EF89A601DB4342E9086C7AC13B5E56C32E9E668040B" + + "73847893C5BFD38A1CF44F348B4EEE4CD68ADB7E7B8C837F" + + "19BC4F902761F7CFF24AB1D704FD11C4E929D8553753B55D", + "400B977CE8A2BB6A" + + "84C6FD1CF901459685ABF5408CFF4588CEDF52E2D2DC300A" + + "A9B4FAED8CD0161C2172B1FD269253195883D6EBF21020F2" + + "C20E5F2C81AE60C8595B834A229B1F5B726C1125717E6207" + + "8886EF38E61E32707AD5F8116C6393DFB6E7C7AE0E8E92BB" + + "D7E0C3D04BBA02F5169F2F569A58158915FEE4C9D28D45DB" + } + ) + .setPersonalizationString( + "404142434445464748494A4B4C4D4E" + + "4F505152535455565758595A5B5C5D5E5F60616263646566" + + "6768696A6B6C6D6E6F707172737475767778797A7B7C7D7E" + + "7F808182838485868788898A8B8C8D8E8F90919293949596" + + "9798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAE") + .addAdditionalInput( + "606162636465666768696A6B6C6D6E" + + "6F707172737475767778797A7B7C7D7E7F80818283848586" + + "8788898A8B8C8D8E8F909192939495969798999A9B9C9D9E" + + "9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6" + + "B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCE") + .addAdditionalInput( + "A0A1A2A3A4A5A6A7A8A9AAABACADAE" + + "AFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6" + + "C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDE" + + "DFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6" + + "F7F8F9FAFBFCFDFEFF000102030405060708090A0B0C0D0E"), + new DRBGTestVector( + new Sha512Digest(), + new SHA512EntropyProvider().Get(888), + true, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[] + { + "F93CA6855590A77F" + + "07354097E90E026648B6115DF008FFEDBD9D9811F54E8286" + + "EF00FDD6BA1E58DF2535E3FBDD9A9BA3754A97F36EE83322" + + "1582060A1F37FCE4EE8826636B28EAD589593F4CA8B64738" + + "8F24EB3F0A34796968D21BDEE6F81FD5DF93536F935937B8" + + "025EC8CBF57DDB0C61F2E41463CC1516D657DA2829C6BF90", + "4817618F48C60FB1" + + "CE5BFBDA0CAF4591882A31F6EE3FE0F78779992A06EC60F3" + + "7FB9A8D6108C231F0A927754B0599FA4FA27A4E25E065EF0" + + "3085B892979DC0E7A1080883CAEBFDFD3665A8F2D061C521" + + "F7D6E3DA2AF8B97B6B43B6EC831AF515070A83BBB9AC95ED" + + "4EF49B756A2377A5F0833D847E27A88DDB0C2CE4AD782E7B " + } + ), + new DRBGTestVector( + new Sha512Digest(), + new SHA512EntropyProvider().Get(888), + true, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[] + { + "0455DD4AD7DBACB2" + + "410BE58DF7248D765A4547ABAEE1743B0BCAD37EBD06DA7C" + + "F7CE5E2216E525327E9E2005EBEF2CE53BD733B18128627D" + + "3FD6153089373AF2606A1584646A0EA488BFEF45228699A0" + + "89CEA8AEC44502D86D9591F3552C688B7F7B45FCB0C3C2B9" + + "43C1CD8A6FC63DF4D81C3DA543C9CF2843855EA84E4F959C", + "C047D46D7F614E4E" + + "4A7952C79A451F8F7ACA379967E2977C401C626A2ED70D74" + + "A63660579A354115BC8C8C8CC3AEA3050686A0CFCDB6FA9C" + + "F78D4C2165BAF851C6F9B1CD16A2E14C15C6DAAC56C16E75" + + "FC84A14D58B41622E88B0F1B1995587FD8BAA999CBA98025" + + "4C8AB9A9691DF7B84D88B639A9A3106DEABEB63748B99C09" + } + ) + .addAdditionalInput( + "606162636465666768696A6B6C6D6E" + + "6F707172737475767778797A7B7C7D7E7F80818283848586" + + "8788898A8B8C8D8E8F909192939495969798999A9B9C9D9E" + + "9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6" + + "B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCE") + .addAdditionalInput( + "A0A1A2A3A4A5A6A7A8A9AAABACADAE" + + "AFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6" + + "C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDE" + + "DFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6" + + "F7F8F9FAFBFCFDFEFF000102030405060708090A0B0C0D0E"), + new DRBGTestVector( + new Sha512Digest(), + new SHA512EntropyProvider().Get(888), + true, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[] + { + "22EB93A67911DA73" + + "85D9180C78127DE1A04FF713114C07C9C615F7CC5EF72744" + + "A2DDCD7C3CB85E65DED8EF5F240FBDCBEBBDE2BAAC8ECF7D" + + "CBC8AC333E54607AD41DC495D83DF72A05EF55B127C1441C" + + "9A0EFFDA2C7954DB6C2D04342EB812E5E0B11D6C395F41ED" + + "A2702ECE5BA479E2DFA18F953097492636C12FE30CE5C968", + "E66698CFBF1B3F2E" + + "919C03036E584EAA81CF1C6666240AF05F70637043733954" + + "D8A1E5A66A04C53C6900FDC145D4A3A80A31F5868ACE9AC9" + + "4E14E2051F624A05EEA1F8B684AA5410BCE315E76EA07C71" + + "5D6F34731320FF0DCF78D795E6EFA2DF92B98BE636CDFBA2" + + "9008DD392112AEC202F2E481CB9D83F987FEA69CD1B368BB" + } + ) + .setPersonalizationString( + "404142434445464748494A4B4C4D4E" + + "4F505152535455565758595A5B5C5D5E5F60616263646566" + + "6768696A6B6C6D6E6F707172737475767778797A7B7C7D7E" + + "7F808182838485868788898A8B8C8D8E8F90919293949596" + + "9798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAE"), + new DRBGTestVector( + new Sha512Digest(), + new SHA512EntropyProvider().Get(888), + true, + "202122232425262728292A2B2C2D2E2F", + 256, + new String[] + { + "7596A76372308BD5" + + "A5613439934678B35521A94D81ABFE63A21ACF61ABB88B61" + + "E86A12C37F308F2BBBE32BE4B38D03AE808386494D70EF52" + + "E9E1365DD18B7784CAB826F31D47579E4D57F69D8BF3152B" + + "95741946CEBE58571DF58ED39980D9AF44E69F01E8989759" + + "8E40171101A0E3302838E0AD9E849C01988993CF9F6E5263", + "DBE5EE36FCD85301" + + "303E1C3617C1AC5E23C08885D0BEFAAD0C85A0D89F85B9F1" + + "6ECE3D88A24EB96504F2F13EFA7049621782F5DE2C416A0D" + + "294CCFE53545C4E309C48E1E285A2B829A574B72B3C2FBE1" + + "34D01E3706B486F2401B9820E17298A342666918E15B8462" + + "87F8C5AF2D96B20FAF3D0BB392E15F4A06CDB0DECD1B6AD7" + } + ) + .setPersonalizationString( + "404142434445464748494A4B4C4D4E" + + "4F505152535455565758595A5B5C5D5E5F60616263646566" + + "6768696A6B6C6D6E6F707172737475767778797A7B7C7D7E" + + "7F808182838485868788898A8B8C8D8E8F90919293949596" + + "9798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAE") + .addAdditionalInput( + "606162636465666768696A6B6C6D6E" + + "6F707172737475767778797A7B7C7D7E7F80818283848586" + + "8788898A8B8C8D8E8F909192939495969798999A9B9C9D9E" + + "9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6" + + "B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6C7C8C9CACBCCCDCE") + .addAdditionalInput( + "A0A1A2A3A4A5A6A7A8A9AAABACADAE" + + "AFB0B1B2B3B4B5B6B7B8B9BABBBCBDBEBFC0C1C2C3C4C5C6" + + "C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDE" + + "DFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6" + + "F7F8F9FAFBFCFDFEFF000102030405060708090A0B0C0D0E") + }; + } + + public override void PerformTest() + { + DRBGTestVector[] tests = createTestVectorData(); + SP80090Drbg d; + + for (int i = 0; i != tests.Length; i++) + { + DRBGTestVector tv = tests[i]; + + byte[] nonce = tv.nonce(); + byte[] personalisationString = tv.personalizationString(); + + d = new HashSP800Drbg(tv.getDigest(), tv.securityStrength(), tv.entropySource(), personalisationString, nonce); + + byte[] output = new byte[tv.expectedValue(0).Length]; + + d.Generate(output, tv.additionalInput(0), tv.predictionResistance()); + + byte[] expected = tv.expectedValue(0); + + if (!AreEqual(expected, output)) + { + Fail("Test #" + (i + 1) + ".1 failed, expected " + Hex.ToHexString(tv.expectedValue(0)) + " got " + Hex.ToHexString(output)); + } + + output = new byte[tv.expectedValue(0).Length]; + + d.Generate(output, tv.additionalInput(1), tv.predictionResistance()); + + expected = tv.expectedValue(1); + if (!AreEqual(expected, output)) + { + Fail("Test #" + (i + 1) + ".2 failed, expected " + Hex.ToHexString(tv.expectedValue(1)) + " got " + Hex.ToHexString(output)); + } + } + + // Exception tests + // + try + { + d = new HashSP800Drbg(new Sha256Digest(), 256, new SHA256EntropyProvider().Get(128), null, null); + Fail("no exception thrown"); + } + catch (ArgumentException e) + { + if (!e.Message.Equals("Not enough entropy for security strength required")) + { + Fail("Wrong exception", e); + } + } + + try + { + d = new HashSP800Drbg(new Sha1Digest(), 256, new SHA256EntropyProvider().Get(256), null, null); + Fail("no exception thrown"); + } + catch (ArgumentException e) + { + if (!e.Message.Equals("Requested security strength is not supported by the derivation function")) + { + Fail("Wrong exception", e); + } + } + } + + internal class SHA1EntropyProvider: TestEntropySourceProvider + { + internal SHA1EntropyProvider(): base( + Hex.Decode( + "000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F30313233343536" + + "808182838485868788898A8B8C8D8E8F909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6" + + "C0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6"), true) + {} + } + + internal class SHA256EntropyProvider: TestEntropySourceProvider + { + internal SHA256EntropyProvider(): base(Hex.Decode( + "00010203040506" + + "0708090A0B0C0D0E0F101112131415161718191A1B1C1D1E" + + "1F202122232425262728292A2B2C2D2E2F30313233343536" + + "80818283848586" + + "8788898A8B8C8D8E8F909192939495969798999A9B9C9D9E" + + "9FA0A1A2A3A4A5A6A7A8A9AAABACADAEAFB0B1B2B3B4B5B6" + + "C0C1C2C3C4C5C6" + + "C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6D7D8D9DADBDCDDDE" + + "DFE0E1E2E3E4E5E6E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6"), true) + { } + } + + internal class SHA384EntropyProvider: TestEntropySourceProvider + { + internal SHA384EntropyProvider(): base(Hex.Decode( + "000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F20212223242526" + + "2728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F50515253545556" + + "5758595A5B5C5D5E5F606162636465666768696A6B6C6D6E" + + "808182838485868788898A8B8C8D8E" + + "8F909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6" + + "A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBE" + + "BFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6" + + "D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEE" + + "C0C1C2C3C4C5C6C7C8C9CACBCCCDCE" + + "CFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6" + + "E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6F7F8F9FAFBFCFDFE" + + "FF000102030405060708090A0B0C0D0E0F10111213141516" + + "1718191A1B1C1D1E1F202122232425262728292A2B2C2D2E"), true) + {} + } + + internal class SHA512EntropyProvider: TestEntropySourceProvider + { + internal SHA512EntropyProvider(): base(Hex.Decode( + "000102030405060708090A0B0C0D0E" + + "0F101112131415161718191A1B1C1D1E1F20212223242526" + + "2728292A2B2C2D2E2F303132333435363738393A3B3C3D3E" + + "3F404142434445464748494A4B4C4D4E4F50515253545556" + + "5758595A5B5C5D5E5F606162636465666768696A6B6C6D6E" + + "808182838485868788898A8B8C8D8E" + + "8F909192939495969798999A9B9C9D9E9FA0A1A2A3A4A5A6" + + "A7A8A9AAABACADAEAFB0B1B2B3B4B5B6B7B8B9BABBBCBDBE" + + "BFC0C1C2C3C4C5C6C7C8C9CACBCCCDCECFD0D1D2D3D4D5D6" + + "D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6E7E8E9EAEBECEDEE" + + "C0C1C2C3C4C5C6C7C8C9CACBCCCDCE" + + "CFD0D1D2D3D4D5D6D7D8D9DADBDCDDDEDFE0E1E2E3E4E5E6" + + "E7E8E9EAEBECEDEEEFF0F1F2F3F4F5F6F7F8F9FAFBFCFDFE" + + "FF000102030405060708090A0B0C0D0E0F10111213141516" + + "1718191A1B1C1D1E1F202122232425262728292A2B2C2D2E"), true) + { } + } +} +} diff --git a/crypto/test/src/crypto/prng/test/TestEntropySourceProvider.cs b/crypto/test/src/crypto/prng/test/TestEntropySourceProvider.cs new file mode 100644 index 000000000..a37bcd844 --- /dev/null +++ b/crypto/test/src/crypto/prng/test/TestEntropySourceProvider.cs @@ -0,0 +1,64 @@ +using System; + +namespace Org.BouncyCastle.Crypto.Prng.Test +{ + public class TestEntropySourceProvider: IEntropySourceProvider + { + private readonly byte[] data; + private readonly bool isPredictionResistant; + + internal TestEntropySourceProvider(byte[] data, bool isPredictionResistant) + { + this.data = data; + this.isPredictionResistant = isPredictionResistant; + } + + public IEntropySource Get(int bitsRequired) + { + return new EntropySource(bitsRequired, data, isPredictionResistant); + } + + internal class EntropySource: IEntropySource + { + private readonly int bitsRequired; + private readonly byte[] data; + private readonly bool isPredictionResistant; + + int index = 0; + + internal EntropySource(int bitsRequired, byte[] data, bool isPredictionResistant) + { + this.bitsRequired = bitsRequired; + this.data = data; + this.isPredictionResistant = isPredictionResistant; + } + + public bool IsPredictionResistant + { + get + { + return isPredictionResistant; + } + } + + public byte[] GetEntropy() + { + byte[] rv = new byte[bitsRequired / 8]; + + Array.Copy(data, index, rv, 0, rv.Length); + + index += bitsRequired / 8; + + return rv; + } + + public int EntropySize + { + get + { + return bitsRequired; + } + } + } +} +} -- cgit 1.4.1