diff --git a/crypto/src/crypto/Security.cs b/crypto/src/crypto/Security.cs
deleted file mode 100644
index 7eb595f8e..000000000
--- a/crypto/src/crypto/Security.cs
+++ /dev/null
@@ -1,74 +0,0 @@
-using System.Text;
-
-using Org.BouncyCastle.Crypto.Digests;
-using Org.BouncyCastle.Crypto.Engines;
-using Org.BouncyCastle.Crypto.Generators;
-using Org.BouncyCastle.Crypto.Modes;
-using Org.BouncyCastle.Crypto.Paddings;
-using Org.BouncyCastle.Crypto.Parameters;
-using Org.BouncyCastle.Security;
-using Org.BouncyCastle.Utilities.Encoders;
-
-namespace Org.BouncyCastle.Crypto
-{
- public static class Security
- {
- // USAGE
- //var key = Security.GenerateText(32);
- //var iv = Security.GenerateText(16);
- //var encrypted = Security.Encrypt("MY SECRET", key, iv);
- //var decrypted = Security.Decrypt(encrypted, key, iv);
-
- /// <summary>
- /// Return a salted hash based on PBKDF2 for the UTF-8 encoding of the argument text.
- /// </summary>
- /// <param name="text">Provided key text</param>
- /// <param name="salt">Base64 encoded string representing the salt</param>
- /// <returns></returns>
- public static string ComputeHash(string text, string salt)
- {
- byte[] data = Encoding.UTF8.GetBytes(text);
- Sha512Digest sha = new Sha512Digest();
- Pkcs5S2ParametersGenerator gen = new Pkcs5S2ParametersGenerator(sha);
-
- gen.Init(data, Base64.Decode(salt), 2048);
-
- return Base64.ToBase64String(((KeyParameter)gen.GenerateDerivedParameters("AES", sha.GetDigestSize() * 8)).GetKey());
- }
-
- public static string Decrypt(string cipherText, string key, string iv)
- {
- IBufferedCipher cipher = CreateCipher(false, key, iv);
- byte[] textAsBytes = cipher.DoFinal(Base64.Decode(cipherText));
-
- return Encoding.UTF8.GetString(textAsBytes, 0, textAsBytes.Length);
- }
-
- public static string Encrypt(string plainText, string key, string iv)
- {
- IBufferedCipher cipher = CreateCipher(true, key, iv);
-
- return Base64.ToBase64String(cipher.DoFinal(Encoding.UTF8.GetBytes(plainText)));
- }
-
- public static string GenerateText(int size)
- {
- byte[] textAsBytes = new byte[size];
- SecureRandom secureRandom = SecureRandom.GetInstance("SHA256PRNG", true);
-
- secureRandom.NextBytes(textAsBytes);
- return Base64.ToBase64String(textAsBytes);
- }
-
- private static IBufferedCipher CreateCipher(bool isEncryption, string key, string iv)
- {
- IBufferedCipher cipher = new PaddedBufferedBlockCipher(new CbcBlockCipher(new RijndaelEngine()), new ISO10126d2Padding());
- KeyParameter keyParam = new KeyParameter(Base64.Decode(key));
- ICipherParameters cipherParams = (null == iv || iv.Length < 1)
- ? (ICipherParameters)keyParam
- : new ParametersWithIV(keyParam, Base64.Decode(iv));
- cipher.Init(isEncryption, cipherParams);
- return cipher;
- }
- }
-}
|
