* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-using System.Linq;
-using System.Collections.Generic;
+using Org.BouncyCastle.Crypto.Digests;
namespace Novacoin
{
/// </summary>
public class SHA256 : Hash
{
+ private static Sha256Digest _hasher256 = new Sha256Digest();
+
// 32 bytes
public override int hashSize
{
- get { return 32; }
+ get { return _hasher256.GetDigestSize(); }
}
public SHA256() : base() { }
public SHA256(byte[] bytes, int offset = 0) : base(bytes, offset) { }
- public SHA256(IEnumerable<byte> bytes, int skip = 0) : base(bytes, skip) { }
public SHA256(SHA256 h) : base(h) { }
- public static SHA256 Compute256(IEnumerable<byte> inputBytes)
+ public static SHA256 Compute256(byte[] inputBytes)
{
- var dataBytes = inputBytes.ToArray();
- var digest1 = _hasher256.ComputeHash(dataBytes, 0, dataBytes.Length);
+ var digest1 = new byte[_hasher256.GetDigestSize()];
+
+ _hasher256.BlockUpdate(inputBytes, 0, inputBytes.Length);
+ _hasher256.DoFinal(digest1, 0);
return new SHA256(digest1);
}