Description fix.

[NovacoinLibrary.git] / Novacoin / SHA1.cs

diff --git a/Novacoin/SHA1.cs b/Novacoin/SHA1.cs
index 6d60d1c..05bac1d 100644 (file)
--- a/Novacoin/SHA1.cs
+++ b/Novacoin/SHA1.cs
@@ -1,38 +1,55 @@
-\feffusing System;
-using System.Text;
-using System.Linq;
-using System.Collections.Generic;
+\feff/**
+ *  Novacoin classes library
+ *  Copyright (C) 2015 Alex D. (balthazar.ad@gmail.com)
+
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as
+ *  published by the Free Software Foundation, either version 3 of the
+ *  License, or (at your option) any later version.
+
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
 
-using System.Security.Cryptography;
+
+using System.Collections.Generic;
+using System.Linq;
+using Org.BouncyCastle.Crypto.Digests;
 
 namespace Novacoin
 {
     /// <summary>
-    /// Representation of SHA-256 hash
+    /// Representation of SHA-1 hash
     /// </summary>
     public class SHA1 : Hash
     {
         /// <summary>
         /// Computes RIPEMD160 hash using managed library
         /// </summary>
-        private static readonly SHA1Managed _hasher1 = new SHA1Managed();
+        private static Sha1Digest _hasher1 = new Sha1Digest();
 
         // 32 bytes
         public override int hashSize
         {
-            get { return 20; }
+            get { return _hasher1.GetDigestSize(); }
         }
 
         public SHA1() : base() { }
         public SHA1(byte[] bytes, int offset = 0) : base(bytes, offset) { }
-        public SHA1(IEnumerable<byte> bytes, int skip = 0) : base(bytes, skip) { }
         public SHA1(SHA1 h) : base(h) { }
 
 
-        public static SHA1 Compute1(IEnumerable<byte> inputBytes)
+        public static SHA1 Compute1(byte[] inputBytes)
         {
-            byte[] dataBytes = inputBytes.ToArray();
-            byte[] digest1 = _hasher1.ComputeHash(dataBytes, 0, dataBytes.Length);
+            var digest1 = new byte[_hasher1.GetDigestSize()];
+
+            _hasher1.BlockUpdate(inputBytes, 0, inputBytes.Length);
+            _hasher1.DoFinal(digest1, 0);
 
             return new SHA1(digest1);
         }