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authorPeter Dettman <peter.dettman@bouncycastle.org>2014-07-21 11:17:15 +0700
committerPeter Dettman <peter.dettman@bouncycastle.org>2014-07-21 11:17:15 +0700
commit59d03bc3a805274c5ef855f6f8099cb9c2a8319d (patch)
tree46399a661edd902c51d1514b8a31f8ed1058883e /crypto/src
parentDe-tabify (diff)
downloadBouncyCastle.NET-ed25519-59d03bc3a805274c5ef855f6f8099cb9c2a8319d.tar.xz
De-tabify
Diffstat (limited to 'crypto/src')
-rw-r--r--crypto/src/crypto/modes/SicBlockCipher.cs176
1 files changed, 88 insertions, 88 deletions
diff --git a/crypto/src/crypto/modes/SicBlockCipher.cs b/crypto/src/crypto/modes/SicBlockCipher.cs
index 07c5d1978..da7ed7859 100644
--- a/crypto/src/crypto/modes/SicBlockCipher.cs
+++ b/crypto/src/crypto/modes/SicBlockCipher.cs
@@ -5,52 +5,52 @@ using Org.BouncyCastle.Math;
 
 namespace Org.BouncyCastle.Crypto.Modes
 {
-	/**
-	* Implements the Segmented Integer Counter (SIC) mode on top of a simple
-	* block cipher.
-	*/
-	public class SicBlockCipher
-		: IBlockCipher
-	{
-		private readonly IBlockCipher cipher;
-		private readonly int blockSize;
-		private readonly byte[] IV;
-		private readonly byte[] counter;
-		private readonly byte[] counterOut;
+    /**
+    * Implements the Segmented Integer Counter (SIC) mode on top of a simple
+    * block cipher.
+    */
+    public class SicBlockCipher
+        : IBlockCipher
+    {
+        private readonly IBlockCipher cipher;
+        private readonly int blockSize;
+        private readonly byte[] IV;
+        private readonly byte[] counter;
+        private readonly byte[] counterOut;
 
-		/**
-		* Basic constructor.
-		*
-		* @param c the block cipher to be used.
-		*/
-		public SicBlockCipher(IBlockCipher cipher)
-		{
-			this.cipher = cipher;
-			this.blockSize = cipher.GetBlockSize();
-			this.IV = new byte[blockSize];
-			this.counter = new byte[blockSize];
-			this.counterOut = new byte[blockSize];
-		}
+        /**
+        * Basic constructor.
+        *
+        * @param c the block cipher to be used.
+        */
+        public SicBlockCipher(IBlockCipher cipher)
+        {
+            this.cipher = cipher;
+            this.blockSize = cipher.GetBlockSize();
+            this.IV = new byte[blockSize];
+            this.counter = new byte[blockSize];
+            this.counterOut = new byte[blockSize];
+        }
 
-		/**
-		* return the underlying block cipher that we are wrapping.
-		*
-		* @return the underlying block cipher that we are wrapping.
-		*/
-		public IBlockCipher GetUnderlyingCipher()
-		{
-			return cipher;
-		}
+        /**
+        * return the underlying block cipher that we are wrapping.
+        *
+        * @return the underlying block cipher that we are wrapping.
+        */
+        public IBlockCipher GetUnderlyingCipher()
+        {
+            return cipher;
+        }
 
-		public void Init(
-			bool				forEncryption, //ignored by this CTR mode
-			ICipherParameters	parameters)
-		{
-			if (parameters is ParametersWithIV)
-			{
-				ParametersWithIV ivParam = (ParametersWithIV) parameters;
-				byte[] iv = ivParam.GetIV();
-				Array.Copy(iv, 0, IV, 0, IV.Length);
+        public void Init(
+            bool				forEncryption, //ignored by this CTR mode
+            ICipherParameters	parameters)
+        {
+            if (parameters is ParametersWithIV)
+            {
+                ParametersWithIV ivParam = (ParametersWithIV) parameters;
+                byte[] iv = ivParam.GetIV();
+                Array.Copy(iv, 0, IV, 0, IV.Length);
 
                 Reset();
 
@@ -59,57 +59,57 @@ namespace Org.BouncyCastle.Crypto.Modes
                 {
                     cipher.Init(true, ivParam.Parameters);
                 }
-			}
-	        else
-	        {
-	            throw new ArgumentException("SIC mode requires ParametersWithIV", "parameters");
-	        }
-		}
+            }
+            else
+            {
+                throw new ArgumentException("SIC mode requires ParametersWithIV", "parameters");
+            }
+        }
 
-		public string AlgorithmName
-		{
-			get { return cipher.AlgorithmName + "/SIC"; }
-		}
+        public string AlgorithmName
+        {
+            get { return cipher.AlgorithmName + "/SIC"; }
+        }
 
-		public bool IsPartialBlockOkay
-		{
-			get { return true; }
-		}
+        public bool IsPartialBlockOkay
+        {
+            get { return true; }
+        }
 
-		public int GetBlockSize()
-		{
-			return cipher.GetBlockSize();
-		}
+        public int GetBlockSize()
+        {
+            return cipher.GetBlockSize();
+        }
 
-		public int ProcessBlock(
-			byte[]	input,
-			int		inOff,
-			byte[]	output,
-			int		outOff)
-		{
-			cipher.ProcessBlock(counter, 0, counterOut, 0);
+        public int ProcessBlock(
+            byte[]	input,
+            int		inOff,
+            byte[]	output,
+            int		outOff)
+        {
+            cipher.ProcessBlock(counter, 0, counterOut, 0);
 
-			//
-			// XOR the counterOut with the plaintext producing the cipher text
-			//
-			for (int i = 0; i < counterOut.Length; i++)
-			{
-				output[outOff + i] = (byte)(counterOut[i] ^ input[inOff + i]);
-			}
+            //
+            // XOR the counterOut with the plaintext producing the cipher text
+            //
+            for (int i = 0; i < counterOut.Length; i++)
+            {
+                output[outOff + i] = (byte)(counterOut[i] ^ input[inOff + i]);
+            }
 
-			// Increment the counter
-			int j = counter.Length;
-			while (--j >= 0 && ++counter[j] == 0)
-			{
-			}
+            // Increment the counter
+            int j = counter.Length;
+            while (--j >= 0 && ++counter[j] == 0)
+            {
+            }
 
-			return counter.Length;
-		}
+            return counter.Length;
+        }
 
-		public void Reset()
-		{
-			Array.Copy(IV, 0, counter, 0, counter.Length);
-			cipher.Reset();
-		}
-	}
+        public void Reset()
+        {
+            Array.Copy(IV, 0, counter, 0, counter.Length);
+            cipher.Reset();
+        }
+    }
 }