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/>.
19 using Org.BouncyCastle.Crypto.Digests;
24 /// Representation of SHA-256 hash
26 public class SHA256 : Hash
28 private static Sha256Digest _hasher256 = new Sha256Digest();
31 public override int hashSize
33 get { return _hasher256.GetDigestSize(); }
36 public SHA256() : base() { }
37 public SHA256(byte[] bytes, int offset = 0) : base(bytes, offset) { }
38 public SHA256(SHA256 h) : base(h) { }
41 public static SHA256 Compute256(byte[] inputBytes)
43 var digest1 = new byte[_hasher256.GetDigestSize()];
45 _hasher256.BlockUpdate(inputBytes, 0, inputBytes.Length);
46 _hasher256.DoFinal(digest1, 0);
48 return new SHA256(digest1);