3 * This program is free software: you can redistribute it and/or modify
4 * it under the terms of the GNU Affero General Public License as
5 * published by the Free Software Foundation, either version 3 of the
6 * License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU Affero General Public License for more details.
13 * You should have received a copy of the GNU Affero General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 using System.Collections.Generic;
20 using Org.BouncyCastle.Crypto.Digests;
25 /// Representation of SHA-256 hash
27 public class SHA1 : Hash
30 /// Computes RIPEMD160 hash using managed library
32 private static Sha1Digest _hasher1 = new Sha1Digest();
35 public override int hashSize
37 get { return _hasher1.GetDigestSize(); }
40 public SHA1() : base() { }
41 public SHA1(byte[] bytes, int offset = 0) : base(bytes, offset) { }
42 public SHA1(SHA1 h) : base(h) { }
45 public static SHA1 Compute1(byte[] inputBytes)
47 var digest1 = new byte[_hasher1.GetDigestSize()];
49 _hasher1.BlockUpdate(inputBytes, 0, inputBytes.Length);
50 _hasher1.DoFinal(digest1, 0);
52 return new SHA1(digest1);