Novacoin/Hash160.cs

   1 \feffusing System;
   2 using System.Security.Cryptography;
   3 using System.Collections.Generic;
   4 using System.Text;
   5 using System.Linq;
   6
   7 namespace Novacoin
   8 {
   9         /// <summary>
  10         /// Representation of pubkey/script hash.
  11         /// </summary>
  12         public class Hash160 : Hash
  13         {
  14         /// <summary>
  15         /// Computes RIPEMD160 hash using managed library
  16         /// </summary>
  17         private static readonly RIPEMD160Managed _hasher160 = new RIPEMD160Managed();
  18
  19         // 20 bytes
  20         public override int hashSize
  21         {
  22             get { return 20; }
  23         }
  24
  25         public Hash160() : base() { }
  26         public Hash160(byte[] bytes) : base(bytes) { }
  27         public Hash160(IEnumerable<byte> bytes) : base(bytes) { }
  28         public Hash160(Hash160 h) : base(h) { }
  29
  30         public static Hash160 Compute160(IEnumerable<byte> inputBytes)
  31         {
  32             byte[] dataBytes = inputBytes.ToArray();
  33             byte[] digest1 = _hasher256.ComputeHash(dataBytes, 0, dataBytes.Length);
  34             byte[] digest2 = _hasher160.ComputeHash(digest1, 0, digest1.Length);
  35
  36             return new Hash160(digest2);
  37         }
  38         }
  39 }
  40