2 * Novacoin classes library
3 * Copyright (C) 2015 Alex D. (balthazar.ad@gmail.com)
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU Affero General Public License as
7 * published by the Free Software Foundation, either version 3 of the
8 * License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU Affero General Public License for more details.
15 * You should have received a copy of the GNU Affero General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 using Org.BouncyCastle.Crypto.Digests;
25 /// Representation of pubkey/script hash.
27 public class Hash160 : Hash
30 /// Computes RIPEMD160 hash using managed library
32 //private static readonly RIPEMD160Managed _hasher160 = new RIPEMD160Managed();
34 private static RipeMD160Digest _hasher160 = new RipeMD160Digest();
35 private static Sha256Digest _hasher256 = new Sha256Digest();
38 public override int hashSize
40 get { return _hasher160.GetDigestSize(); }
43 public Hash160() : base() { }
44 public Hash160(byte[] bytes, int offset = 0) : base(bytes, offset) { }
45 public Hash160(Hash160 h) : base(h) { }
47 public static Hash160 Compute160(byte[] inputBytes)
49 var dataBytes = inputBytes.ToArray();
51 var digest1 = new byte[_hasher256.GetDigestSize()];
52 var digest2 = new byte[_hasher160.GetDigestSize()];
54 _hasher256.BlockUpdate(dataBytes, 0, dataBytes.Length);
55 _hasher256.DoFinal(digest1, 0);
56 _hasher160.BlockUpdate(digest1, 0, digest1.Length);
57 _hasher160.DoFinal(digest2, 0);
59 return new Hash160(digest2);