-\feffusing System;
-using System.Collections.Generic;
-using System.Text;
+\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.Linq;
+using Org.BouncyCastle.Crypto.Digests;
namespace Novacoin
{
- /// <summary>
- /// Representation of pubkey/script hash.
- /// </summary>
- public class Hash160
+ /// <summary>
+ /// Representation of pubkey/script hash.
+ /// </summary>
+ public class Hash160 : Hash
{
- // 20 bytes
- const int hashSize = 20;
-
- /// <summary>
- /// Array of digest bytes.
- /// </summary>
- private byte[] hashBytes = new byte[hashSize];
-
- /// <summary>
- /// Initializes an empty instance of the Hash160 class.
- /// </summary>
- public Hash160 ()
- {
- hashBytes = Enumerable.Repeat<byte>(0, hashSize).ToArray();
- }
-
/// <summary>
- /// Initializes a new instance of Hash160 class with first 20 bytes from supplied list
+ /// Computes RIPEMD160 hash using managed library
/// </summary>
- /// <param name="bytesList">List of bytes</param>
- public Hash160(List<byte> bytesList)
+ //private static readonly RIPEMD160Managed _hasher160 = new RIPEMD160Managed();
+
+ private static RipeMD160Digest _hasher160 = new RipeMD160Digest();
+ private static Sha256Digest _hasher256 = new Sha256Digest();
+
+ // 20 bytes
+ public override int hashSize
{
- hashBytes = bytesList.Take<byte>(hashSize).ToArray<byte>();
+ get { return _hasher160.GetDigestSize(); }
}
- public Hash160(byte[] bytesArray)
+ public Hash160() : base() { }
+ public Hash160(byte[] bytes, int offset = 0) : base(bytes, offset) { }
+ public Hash160(Hash160 h) : base(h) { }
+
+ public static Hash160 Compute160(byte[] inputBytes)
{
- hashBytes = bytesArray;
- }
+ var dataBytes = inputBytes.ToArray();
+
+ var digest1 = new byte[_hasher256.GetDigestSize()];
+ var digest2 = new byte[_hasher160.GetDigestSize()];
- public override string ToString()
- {
- StringBuilder sb = new StringBuilder(hashSize * 2);
- foreach (byte b in hashBytes)
- {
- sb.AppendFormat ("{0:x2}", b);
- }
- return sb.ToString();
- }
+ _hasher256.BlockUpdate(dataBytes, 0, dataBytes.Length);
+ _hasher256.DoFinal(digest1, 0);
+ _hasher160.BlockUpdate(digest1, 0, digest1.Length);
+ _hasher160.DoFinal(digest2, 0);
+
+ return new Hash160(digest2);
+ }
}
}