diff options
| -rw-r--r-- | crypto/BouncyCastle.Android.csproj | 1 | ||||
| -rw-r--r-- | crypto/BouncyCastle.csproj | 1 | ||||
| -rw-r--r-- | crypto/BouncyCastle.iOS.csproj | 1 | ||||
| -rw-r--r-- | crypto/crypto.csproj | 15 | ||||
| -rw-r--r-- | crypto/src/crypto/engines/SM4Engine.cs | 189 | ||||
| -rw-r--r-- | crypto/src/security/CipherUtilities.cs | 5 | ||||
| -rw-r--r-- | crypto/src/security/GeneratorUtilities.cs | 3 | ||||
| -rw-r--r-- | crypto/src/security/ParameterUtilities.cs | 4 | ||||
| -rw-r--r-- | crypto/src/util/Integers.cs | 12 | ||||
| -rw-r--r-- | crypto/test/UnitTests.csproj | 2 | ||||
| -rw-r--r-- | crypto/test/src/crypto/test/RegressionTest.cs | 1 | ||||
| -rw-r--r-- | crypto/test/src/crypto/test/SM4Test.cs | 93 | ||||
| -rw-r--r-- | crypto/test/src/test/RegressionTest.cs | 1 | ||||
| -rw-r--r-- | crypto/test/src/test/SM4Test.cs | 149 |
14 files changed, 475 insertions, 2 deletions
diff --git a/crypto/BouncyCastle.Android.csproj b/crypto/BouncyCastle.Android.csproj index c5eb8e6f5..8936ecbc1 100644 --- a/crypto/BouncyCastle.Android.csproj +++ b/crypto/BouncyCastle.Android.csproj @@ -801,6 +801,7 @@ <Compile Include="src\crypto\engines\SerpentEngine.cs" /> <Compile Include="src\crypto\engines\SkipjackEngine.cs" /> <Compile Include="src\crypto\engines\SM2Engine.cs" /> + <Compile Include="src\crypto\engines\SM4Engine.cs" /> <Compile Include="src\crypto\engines\TEAEngine.cs" /> <Compile Include="src\crypto\engines\ThreefishEngine.cs" /> <Compile Include="src\crypto\engines\TwofishEngine.cs" /> diff --git a/crypto/BouncyCastle.csproj b/crypto/BouncyCastle.csproj index 76da30095..e66bb4e5d 100644 --- a/crypto/BouncyCastle.csproj +++ b/crypto/BouncyCastle.csproj @@ -795,6 +795,7 @@ <Compile Include="src\crypto\engines\SerpentEngine.cs" /> <Compile Include="src\crypto\engines\SkipjackEngine.cs" /> <Compile Include="src\crypto\engines\SM2Engine.cs" /> + <Compile Include="src\crypto\engines\SM4Engine.cs" /> <Compile Include="src\crypto\engines\TEAEngine.cs" /> <Compile Include="src\crypto\engines\ThreefishEngine.cs" /> <Compile Include="src\crypto\engines\TwofishEngine.cs" /> diff --git a/crypto/BouncyCastle.iOS.csproj b/crypto/BouncyCastle.iOS.csproj index 52dae0f4f..ad433e3dc 100644 --- a/crypto/BouncyCastle.iOS.csproj +++ b/crypto/BouncyCastle.iOS.csproj @@ -796,6 +796,7 @@ <Compile Include="src\crypto\engines\SerpentEngine.cs" /> <Compile Include="src\crypto\engines\SkipjackEngine.cs" /> <Compile Include="src\crypto\engines\SM2Engine.cs" /> + <Compile Include="src\crypto\engines\SM4Engine.cs" /> <Compile Include="src\crypto\engines\TEAEngine.cs" /> <Compile Include="src\crypto\engines\ThreefishEngine.cs" /> <Compile Include="src\crypto\engines\TwofishEngine.cs" /> diff --git a/crypto/crypto.csproj b/crypto/crypto.csproj index 2ffb66d8c..d0f672e8e 100644 --- a/crypto/crypto.csproj +++ b/crypto/crypto.csproj @@ -3769,6 +3769,11 @@ BuildAction = "Compile" /> <File + RelPath = "src\crypto\engines\SM4Engine.cs" + SubType = "Code" + BuildAction = "Compile" + /> + <File RelPath = "src\crypto\engines\TEAEngine.cs" SubType = "Code" BuildAction = "Compile" @@ -12230,6 +12235,11 @@ BuildAction = "Compile" /> <File + RelPath = "test\src\crypto\test\SM4Test.cs" + SubType = "Code" + BuildAction = "Compile" + /> + <File RelPath = "test\src\crypto\test\SRP6Test.cs" SubType = "Code" BuildAction = "Compile" @@ -13040,6 +13050,11 @@ BuildAction = "Compile" /> <File + RelPath = "test\src\test\SM4Test.cs" + SubType = "Code" + BuildAction = "Compile" + /> + <File RelPath = "test\src\test\TestUtilities.cs" SubType = "Code" BuildAction = "Compile" diff --git a/crypto/src/crypto/engines/SM4Engine.cs b/crypto/src/crypto/engines/SM4Engine.cs new file mode 100644 index 000000000..7477b070e --- /dev/null +++ b/crypto/src/crypto/engines/SM4Engine.cs @@ -0,0 +1,189 @@ +using System; + +using Org.BouncyCastle.Crypto.Parameters; +using Org.BouncyCastle.Crypto.Utilities; +using Org.BouncyCastle.Utilities; + +namespace Org.BouncyCastle.Crypto.Engines +{ + /// <summary>SM4 Block Cipher - SM4 is a 128 bit block cipher with a 128 bit key.</summary> + /// <remarks> + /// The implementation here is based on the document <a href="http://eprint.iacr.org/2008/329.pdf">http://eprint.iacr.org/2008/329.pdf</a> + /// by Whitfield Diffie and George Ledin, which is a translation of Prof. LU Shu-wang's original standard. + /// </remarks> + public class SM4Engine + : IBlockCipher + { + private const int BlockSize = 16; + + private static readonly byte[] Sbox = + { + 0xd6, 0x90, 0xe9, 0xfe, 0xcc, 0xe1, 0x3d, 0xb7, 0x16, 0xb6, 0x14, 0xc2, 0x28, 0xfb, 0x2c, 0x05, + 0x2b, 0x67, 0x9a, 0x76, 0x2a, 0xbe, 0x04, 0xc3, 0xaa, 0x44, 0x13, 0x26, 0x49, 0x86, 0x06, 0x99, + 0x9c, 0x42, 0x50, 0xf4, 0x91, 0xef, 0x98, 0x7a, 0x33, 0x54, 0x0b, 0x43, 0xed, 0xcf, 0xac, 0x62, + 0xe4, 0xb3, 0x1c, 0xa9, 0xc9, 0x08, 0xe8, 0x95, 0x80, 0xdf, 0x94, 0xfa, 0x75, 0x8f, 0x3f, 0xa6, + 0x47, 0x07, 0xa7, 0xfc, 0xf3, 0x73, 0x17, 0xba, 0x83, 0x59, 0x3c, 0x19, 0xe6, 0x85, 0x4f, 0xa8, + 0x68, 0x6b, 0x81, 0xb2, 0x71, 0x64, 0xda, 0x8b, 0xf8, 0xeb, 0x0f, 0x4b, 0x70, 0x56, 0x9d, 0x35, + 0x1e, 0x24, 0x0e, 0x5e, 0x63, 0x58, 0xd1, 0xa2, 0x25, 0x22, 0x7c, 0x3b, 0x01, 0x21, 0x78, 0x87, + 0xd4, 0x00, 0x46, 0x57, 0x9f, 0xd3, 0x27, 0x52, 0x4c, 0x36, 0x02, 0xe7, 0xa0, 0xc4, 0xc8, 0x9e, + 0xea, 0xbf, 0x8a, 0xd2, 0x40, 0xc7, 0x38, 0xb5, 0xa3, 0xf7, 0xf2, 0xce, 0xf9, 0x61, 0x15, 0xa1, + 0xe0, 0xae, 0x5d, 0xa4, 0x9b, 0x34, 0x1a, 0x55, 0xad, 0x93, 0x32, 0x30, 0xf5, 0x8c, 0xb1, 0xe3, + 0x1d, 0xf6, 0xe2, 0x2e, 0x82, 0x66, 0xca, 0x60, 0xc0, 0x29, 0x23, 0xab, 0x0d, 0x53, 0x4e, 0x6f, + 0xd5, 0xdb, 0x37, 0x45, 0xde, 0xfd, 0x8e, 0x2f, 0x03, 0xff, 0x6a, 0x72, 0x6d, 0x6c, 0x5b, 0x51, + 0x8d, 0x1b, 0xaf, 0x92, 0xbb, 0xdd, 0xbc, 0x7f, 0x11, 0xd9, 0x5c, 0x41, 0x1f, 0x10, 0x5a, 0xd8, + 0x0a, 0xc1, 0x31, 0x88, 0xa5, 0xcd, 0x7b, 0xbd, 0x2d, 0x74, 0xd0, 0x12, 0xb8, 0xe5, 0xb4, 0xb0, + 0x89, 0x69, 0x97, 0x4a, 0x0c, 0x96, 0x77, 0x7e, 0x65, 0xb9, 0xf1, 0x09, 0xc5, 0x6e, 0xc6, 0x84, + 0x18, 0xf0, 0x7d, 0xec, 0x3a, 0xdc, 0x4d, 0x20, 0x79, 0xee, 0x5f, 0x3e, 0xd7, 0xcb, 0x39, 0x48 + }; + + private static readonly uint[] CK = + { + 0x00070e15, 0x1c232a31, 0x383f464d, 0x545b6269, + 0x70777e85, 0x8c939aa1, 0xa8afb6bd, 0xc4cbd2d9, + 0xe0e7eef5, 0xfc030a11, 0x181f262d, 0x343b4249, + 0x50575e65, 0x6c737a81, 0x888f969d, 0xa4abb2b9, + 0xc0c7ced5, 0xdce3eaf1, 0xf8ff060d, 0x141b2229, + 0x30373e45, 0x4c535a61, 0x686f767d, 0x848b9299, + 0xa0a7aeb5, 0xbcc3cad1, 0xd8dfe6ed, 0xf4fb0209, + 0x10171e25, 0x2c333a41, 0x484f565d, 0x646b7279 + }; + + private static readonly uint[] FK = + { + 0xa3b1bac6, 0x56aa3350, 0x677d9197, 0xb27022dc + }; + + private uint[] rk; + + // non-linear substitution tau. + private static uint tau(uint A) + { + uint b0 = Sbox[A >> 24]; + uint b1 = Sbox[(A >> 16) & 0xFF]; + uint b2 = Sbox[(A >> 8) & 0xFF]; + uint b3 = Sbox[A & 0xFF]; + + return (b0 << 24) | (b1 << 16) | (b2 << 8) | b3; + } + + private static uint L_ap(uint B) + { + return B ^ Integers.RotateLeft(B, 13) ^ Integers.RotateLeft(B, 23); + } + + private uint T_ap(uint Z) + { + return L_ap(tau(Z)); + } + + // Key expansion + private void ExpandKey(bool forEncryption, byte[] key) + { + uint K0 = Pack.BE_To_UInt32(key, 0) ^ FK[0]; + uint K1 = Pack.BE_To_UInt32(key, 4) ^ FK[1]; + uint K2 = Pack.BE_To_UInt32(key, 8) ^ FK[2]; + uint K3 = Pack.BE_To_UInt32(key, 12) ^ FK[3]; + + if (forEncryption) + { + rk[0] = K0 ^ T_ap(K1 ^ K2 ^ K3 ^ CK[0]); + rk[1] = K1 ^ T_ap(K2 ^ K3 ^ rk[0] ^ CK[1]); + rk[2] = K2 ^ T_ap(K3 ^ rk[0] ^ rk[1] ^ CK[2]); + rk[3] = K3 ^ T_ap(rk[0] ^ rk[1] ^ rk[2] ^ CK[3]); + for (int i = 4; i < 32; ++i) + { + rk[i] = rk[i - 4] ^ T_ap(rk[i - 3] ^ rk[i - 2] ^ rk[i - 1] ^ CK[i]); + } + } + else + { + rk[31] = K0 ^ T_ap(K1 ^ K2 ^ K3 ^ CK[0]); + rk[30] = K1 ^ T_ap(K2 ^ K3 ^ rk[31] ^ CK[1]); + rk[29] = K2 ^ T_ap(K3 ^ rk[31] ^ rk[30] ^ CK[2]); + rk[28] = K3 ^ T_ap(rk[31] ^ rk[30] ^ rk[29] ^ CK[3]); + for (int i = 27; i >= 0; --i) + { + rk[i] = rk[i + 4] ^ T_ap(rk[i + 3] ^ rk[i + 2] ^ rk[i + 1] ^ CK[31 - i]); + } + } + } + + // Linear substitution L + private static uint L(uint B) + { + return B ^ Integers.RotateLeft(B, 2) ^ Integers.RotateLeft(B, 10) ^ Integers.RotateLeft(B, 18) ^ Integers.RotateLeft(B, 24); + } + + // Mixer-substitution T + private static uint T(uint Z) + { + return L(tau(Z)); + } + + public virtual void Init(bool forEncryption, ICipherParameters parameters) + { + KeyParameter keyParameter = parameters as KeyParameter; + if (null == keyParameter) + throw new ArgumentException("invalid parameter passed to SM4 init - " + Platform.GetTypeName(parameters), "parameters"); + + byte[] key = keyParameter.GetKey(); + if (key.Length != 16) + throw new ArgumentException("SM4 requires a 128 bit key", "parameters"); + + if (null == rk) + { + rk = new uint[32]; + } + + ExpandKey(forEncryption, key); + } + + public virtual string AlgorithmName + { + get { return "SM4"; } + } + + public virtual bool IsPartialBlockOkay + { + get { return false; } + } + + public virtual int GetBlockSize() + { + return BlockSize; + } + + public virtual int ProcessBlock(byte[] input, int inOff, byte[] output, int outOff) + { + if (null == rk) + throw new InvalidOperationException("SM4 not initialised"); + + Check.DataLength(input, inOff, BlockSize, "input buffer too short"); + Check.OutputLength(output, outOff, BlockSize, "output buffer too short"); + + uint X0 = Pack.BE_To_UInt32(input, inOff); + uint X1 = Pack.BE_To_UInt32(input, inOff + 4); + uint X2 = Pack.BE_To_UInt32(input, inOff + 8); + uint X3 = Pack.BE_To_UInt32(input, inOff + 12); + + for (int i = 0; i < 32; i += 4) + { + X0 ^= T(X1 ^ X2 ^ X3 ^ rk[i ]); // F0 + X1 ^= T(X2 ^ X3 ^ X0 ^ rk[i + 1]); // F1 + X2 ^= T(X3 ^ X0 ^ X1 ^ rk[i + 2]); // F2 + X3 ^= T(X0 ^ X1 ^ X2 ^ rk[i + 3]); // F3 + } + + Pack.UInt32_To_BE(X3, output, outOff); + Pack.UInt32_To_BE(X2, output, outOff + 4); + Pack.UInt32_To_BE(X1, output, outOff + 8); + Pack.UInt32_To_BE(X0, output, outOff + 12); + + return BlockSize; + } + + public virtual void Reset() + { + } + } +} diff --git a/crypto/src/security/CipherUtilities.cs b/crypto/src/security/CipherUtilities.cs index de05bc9ef..eb10baec8 100644 --- a/crypto/src/security/CipherUtilities.cs +++ b/crypto/src/security/CipherUtilities.cs @@ -53,6 +53,7 @@ namespace Org.BouncyCastle.Security SEED, SERPENT, SKIPJACK, + SM4, TEA, THREEFISH_256, THREEFISH_512, @@ -433,6 +434,9 @@ namespace Org.BouncyCastle.Security case CipherAlgorithm.SKIPJACK: blockCipher = new SkipjackEngine(); break; + case CipherAlgorithm.SM4: + blockCipher = new SM4Engine(); + break; case CipherAlgorithm.TEA: blockCipher = new TeaEngine(); break; @@ -740,6 +744,7 @@ namespace Org.BouncyCastle.Security case CipherAlgorithm.SEED: return new SeedEngine(); case CipherAlgorithm.SERPENT: return new SerpentEngine(); case CipherAlgorithm.SKIPJACK: return new SkipjackEngine(); + case CipherAlgorithm.SM4: return new SM4Engine(); case CipherAlgorithm.TEA: return new TeaEngine(); case CipherAlgorithm.THREEFISH_256: return new ThreefishEngine(ThreefishEngine.BLOCKSIZE_256); case CipherAlgorithm.THREEFISH_512: return new ThreefishEngine(ThreefishEngine.BLOCKSIZE_512); diff --git a/crypto/src/security/GeneratorUtilities.cs b/crypto/src/security/GeneratorUtilities.cs index 26ddb396b..08281493a 100644 --- a/crypto/src/security/GeneratorUtilities.cs +++ b/crypto/src/security/GeneratorUtilities.cs @@ -110,6 +110,7 @@ namespace Org.BouncyCastle.Security KisaObjectIdentifiers.IdSeedCbc); AddKgAlgorithm("SERPENT"); AddKgAlgorithm("SKIPJACK"); + AddKgAlgorithm("SM4"); AddKgAlgorithm("TEA"); AddKgAlgorithm("THREEFISH-256"); AddKgAlgorithm("THREEFISH-512"); @@ -203,7 +204,7 @@ namespace Org.BouncyCastle.Security AddDefaultKeySizeEntries(80, "SKIPJACK"); AddDefaultKeySizeEntries(128, "AES128", "BLOWFISH", "CAMELLIA128", "CAST5", "DESEDE", "HC128", "HMACMD2", "HMACMD4", "HMACMD5", "HMACRIPEMD128", "IDEA", "NOEKEON", - "RC2", "RC4", "RC5", "SALSA20", "SEED", "TEA", "XTEA", "VMPC", "VMPC-KSA3"); + "RC2", "RC4", "RC5", "SALSA20", "SEED", "SM4", "TEA", "XTEA", "VMPC", "VMPC-KSA3"); AddDefaultKeySizeEntries(160, "HMACRIPEMD160", "HMACSHA1"); AddDefaultKeySizeEntries(192, "AES", "AES192", "CAMELLIA192", "DESEDE3", "HMACTIGER", "RIJNDAEL", "SERPENT", "TNEPRES"); diff --git a/crypto/src/security/ParameterUtilities.cs b/crypto/src/security/ParameterUtilities.cs index c12155878..792067bba 100644 --- a/crypto/src/security/ParameterUtilities.cs +++ b/crypto/src/security/ParameterUtilities.cs @@ -103,6 +103,7 @@ namespace Org.BouncyCastle.Security KisaObjectIdentifiers.IdSeedCbc); AddAlgorithm("SERPENT"); AddAlgorithm("SKIPJACK"); + AddAlgorithm("SM4"); AddAlgorithm("TEA"); AddAlgorithm("THREEFISH-256"); AddAlgorithm("THREEFISH-512"); @@ -115,7 +116,8 @@ namespace Org.BouncyCastle.Security AddBasicIVSizeEntries(8, "BLOWFISH", "DES", "DESEDE", "DESEDE3"); AddBasicIVSizeEntries(16, "AES", "AES128", "AES192", "AES256", - "CAMELLIA", "CAMELLIA128", "CAMELLIA192", "CAMELLIA256", "NOEKEON", "SEED"); + "CAMELLIA", "CAMELLIA128", "CAMELLIA192", "CAMELLIA256", + "NOEKEON", "SEED", "SM4"); // TODO These algorithms support an IV // but JCE doesn't seem to provide an AlgorithmParametersGenerator for them diff --git a/crypto/src/util/Integers.cs b/crypto/src/util/Integers.cs index ccbf872c4..e746b0ef4 100644 --- a/crypto/src/util/Integers.cs +++ b/crypto/src/util/Integers.cs @@ -9,9 +9,21 @@ namespace Org.BouncyCastle.Utilities return (i << distance) ^ (int)((uint)i >> -distance); } + [CLSCompliantAttribute(false)] + public static uint RotateLeft(uint i, int distance) + { + return (i << distance) ^ (i >> -distance); + } + public static int RotateRight(int i, int distance) { return (int)((uint)i >> distance) ^ (i << -distance); } + + [CLSCompliantAttribute(false)] + public static uint RotateRight(uint i, int distance) + { + return (i >> distance) ^ (i << -distance); + } } } diff --git a/crypto/test/UnitTests.csproj b/crypto/test/UnitTests.csproj index bb046c2b6..d89cd6d56 100644 --- a/crypto/test/UnitTests.csproj +++ b/crypto/test/UnitTests.csproj @@ -265,6 +265,7 @@ <Compile Include="src\crypto\test\SM2KeyExchangeTest.cs" /> <Compile Include="src\crypto\test\SM2SignerTest.cs" /> <Compile Include="src\crypto\test\SM3DigestTest.cs" /> + <Compile Include="src\crypto\test\SM4Test.cs" /> <Compile Include="src\crypto\test\SkeinDigestTest.cs" /> <Compile Include="src\crypto\test\SkeinMacTest.cs" /> <Compile Include="src\crypto\test\StreamCipherResetTest.cs" /> @@ -434,6 +435,7 @@ <Compile Include="src\test\RegressionTest.cs" /> <Compile Include="src\test\SEEDTest.cs" /> <Compile Include="src\test\SigTest.cs" /> + <Compile Include="src\test\SM4Test.cs" /> <Compile Include="src\test\TestUtilities.cs" /> <Compile Include="src\test\WrapTest.cs" /> <Compile Include="src\test\X509CertificatePairTest.cs" /> diff --git a/crypto/test/src/crypto/test/RegressionTest.cs b/crypto/test/src/crypto/test/RegressionTest.cs index 18aa62d97..f8b5c3c79 100644 --- a/crypto/test/src/crypto/test/RegressionTest.cs +++ b/crypto/test/src/crypto/test/RegressionTest.cs @@ -133,6 +133,7 @@ namespace Org.BouncyCastle.Crypto.Tests new SM2EngineTest(), new SM2KeyExchangeTest(), new SM2SignerTest(), + new SM4Test(), new X25519Test(), new X448Test(), new Ed25519Test(), diff --git a/crypto/test/src/crypto/test/SM4Test.cs b/crypto/test/src/crypto/test/SM4Test.cs new file mode 100644 index 000000000..ae2f18b00 --- /dev/null +++ b/crypto/test/src/crypto/test/SM4Test.cs @@ -0,0 +1,93 @@ +using System; + +using NUnit.Framework; + +using Org.BouncyCastle.Crypto.Engines; +using Org.BouncyCastle.Crypto.Parameters; +using Org.BouncyCastle.Utilities.Encoders; +using Org.BouncyCastle.Utilities.Test; + +namespace Org.BouncyCastle.Crypto.Tests +{ + /** + * SM4 tester, vectors from <a href="http://eprint.iacr.org/2008/329.pdf">http://eprint.iacr.org/2008/329.pdf</a> + */ + [TestFixture] + public class SM4Test + : CipherTest + { + static SimpleTest[] tests = + { + new BlockCipherVectorTest(0, new SM4Engine(), + new KeyParameter(Hex.Decode("0123456789abcdeffedcba9876543210")), + "0123456789abcdeffedcba9876543210", + "681edf34d206965e86b3e94f536e4246") + }; + + public SM4Test() + : base(tests, new SM4Engine(), new KeyParameter(new byte[16])) + { + } + + public override void PerformTest() + { + base.PerformTest(); + + DoTest1000000(); + } + + private void DoTest1000000() + { + byte[] plain = Hex.Decode("0123456789abcdeffedcba9876543210"); + byte[] key = Hex.Decode("0123456789abcdeffedcba9876543210"); + byte[] cipher = Hex.Decode("595298c7c6fd271f0402f804c33d3f66"); + byte[] buf = new byte[16]; + + IBlockCipher engine = new SM4Engine(); + + engine.Init(true, new KeyParameter(key)); + + Array.Copy(plain, 0, buf, 0, buf.Length); + + for (int i = 0; i != 1000000; i++) + { + engine.ProcessBlock(buf, 0, buf, 0); + } + + if (!AreEqual(cipher, buf)) + { + Fail("1000000 encryption test failed"); + } + + engine.Init(false, new KeyParameter(key)); + + for (int i = 0; i != 1000000; i++) + { + engine.ProcessBlock(buf, 0, buf, 0); + } + + if (!AreEqual(plain, buf)) + { + Fail("1000000 decryption test failed"); + } + } + + public override string Name + { + get { return "SM4"; } + } + + public static void Main(string[] args) + { + RunTest(new SM4Test()); + } + + [Test] + public void TestFunction() + { + string resultText = Perform().ToString(); + + Assert.AreEqual(Name + ": Okay", resultText); + } + } +} diff --git a/crypto/test/src/test/RegressionTest.cs b/crypto/test/src/test/RegressionTest.cs index 0ffde72e4..7f4f38f00 100644 --- a/crypto/test/src/test/RegressionTest.cs +++ b/crypto/test/src/test/RegressionTest.cs @@ -64,6 +64,7 @@ namespace Org.BouncyCastle.Tests new MqvTest(), new CMacTest(), new Crl5Test(), + new SM4Test() }; public static void Main( diff --git a/crypto/test/src/test/SM4Test.cs b/crypto/test/src/test/SM4Test.cs new file mode 100644 index 000000000..5d36b3431 --- /dev/null +++ b/crypto/test/src/test/SM4Test.cs @@ -0,0 +1,149 @@ +using System; +using System.IO; + +using NUnit.Framework; + +using Org.BouncyCastle.Crypto; +using Org.BouncyCastle.Crypto.IO; +using Org.BouncyCastle.Crypto.Parameters; +using Org.BouncyCastle.Security; +using Org.BouncyCastle.Utilities.Encoders; + +namespace Org.BouncyCastle.Tests +{ + /** + * basic test class for SM4 + */ + [TestFixture] + public class SM4Test + : BaseBlockCipherTest + { + internal static readonly string[] cipherTests = + { + "128", + "0123456789abcdeffedcba9876543210", + "0123456789abcdeffedcba9876543210", + "681edf34d206965e86b3e94f536e4246" + }; + + public SM4Test() + : base("SM4") + { + } + + public void DoTest( + int strength, + byte[] keyBytes, + byte[] input, + byte[] output) + { + KeyParameter key = ParameterUtilities.CreateKeyParameter("SM4", keyBytes); + + IBufferedCipher inCipher = CipherUtilities.GetCipher("SM4/ECB/NoPadding"); + IBufferedCipher outCipher = CipherUtilities.GetCipher("SM4/ECB/NoPadding"); + + try + { + outCipher.Init(true, key); + } + catch (Exception e) + { + Fail("SM4 failed initialisation - " + e, e); + } + + try + { + inCipher.Init(false, key); + } + catch (Exception e) + { + Fail("SM4 failed initialisation - " + e, e); + } + + // + // encryption pass + // + MemoryStream bOut = new MemoryStream(); + + CipherStream cOut = new CipherStream(bOut, null, outCipher); + + try + { + for (int i = 0; i != input.Length / 2; i++) + { + cOut.WriteByte(input[i]); + } + cOut.Write(input, input.Length / 2, input.Length - input.Length / 2); + cOut.Close(); + } + catch (IOException e) + { + Fail("SM4 failed encryption - " + e, e); + } + + byte[] bytes = bOut.ToArray(); + + if (!AreEqual(bytes, output)) + { + Fail("SM4 failed encryption - expected " + + Hex.ToHexString(output) + " got " + + Hex.ToHexString(bytes)); + } + + // + // decryption pass + // + MemoryStream bIn = new MemoryStream(bytes, false); + + CipherStream cIn = new CipherStream(bIn, inCipher, null); + + try + { +// DataInputStream dIn = new DataInputStream(cIn); + BinaryReader dIn = new BinaryReader(cIn); + + bytes = new byte[input.Length]; + + for (int i = 0; i != input.Length / 2; i++) + { +// bytes[i] = (byte)dIn.read(); + bytes[i] = dIn.ReadByte(); + } + + int remaining = bytes.Length - input.Length / 2; +// dIn.readFully(bytes, input.Length / 2, remaining); + byte[] extra = dIn.ReadBytes(remaining); + if (extra.Length < remaining) + throw new EndOfStreamException(); + extra.CopyTo(bytes, input.Length / 2); + } + catch (Exception e) + { + Fail("SM4 failed encryption - " + e, e); + } + + if (!AreEqual(bytes, input)) + { + Fail("SM4 failed decryption - expected " + + Hex.ToHexString(input) + " got " + + Hex.ToHexString(bytes)); + } + } + + public override void PerformTest() + { + for (int i = 0; i != cipherTests.Length; i += 4) + { + DoTest(int.Parse(cipherTests[i]), + Hex.Decode(cipherTests[i + 1]), + Hex.Decode(cipherTests[i + 2]), + Hex.Decode(cipherTests[i + 3])); + } + } + + public static void Main(string[] args) + { + RunTest(new SM4Test()); + } + } +} |