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/>.
21 using System.Collections.Generic;
26 /// Representation of Double SHA-256 hash
28 public class Hash256 : Hash
31 public override int hashSize
36 public Hash256() : base() { }
37 public Hash256(byte[] bytes, int offset=0) : base(bytes, offset) { }
38 public Hash256(IEnumerable<byte> bytes, int skip=0) : base(bytes, skip) { }
39 public Hash256(Hash256 h) : base(h) { }
42 public static Hash256 Compute256(IEnumerable<byte> inputBytes)
44 byte[] dataBytes = inputBytes.ToArray();
45 byte[] digest1 = _hasher256.ComputeHash(dataBytes, 0, dataBytes.Length);
46 byte[] digest2 = _hasher256.ComputeHash(digest1, 0, digest1.Length);
48 return new Hash256(digest2);