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54 lines
1.4 KiB

using System;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Crypto.Digests
{
public class Gost3411_2012_256Digest : Gost3411_2012Digest
{
private readonly static byte[] IV = {
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01
};
public override string AlgorithmName
{
get { return "GOST3411-2012-256"; }
}
public Gost3411_2012_256Digest() : base(IV)
{
}
public Gost3411_2012_256Digest(Gost3411_2012_256Digest other) : base(IV)
{
Reset(other);
}
public override int GetDigestSize()
{
return 32;
}
public override int DoFinal(byte[] output, int outOff)
{
byte[] result = new byte[64];
base.DoFinal(result, 0);
Array.Copy(result, 32, output, outOff, 32);
return 32;
}
public override IMemoable Copy()
{
return new Gost3411_2012_256Digest(this);
}
}
}