From 300a102d09c63021fc5ac7320e963d0ea6be40f4 Mon Sep 17 00:00:00 2001
From: Peter Dettman <peter.dettman@bouncycastle.org>
Date: Sat, 22 Oct 2022 00:50:18 +0700
Subject: Remove extraneous class

---
 crypto/src/crypto/Security.cs | 74 -------------------------------------------
 1 file changed, 74 deletions(-)
 delete mode 100644 crypto/src/crypto/Security.cs

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;
-        }
-    }
-}
-- 
cgit 1.4.1