diff --git a/crypto/src/crypto/digests/GOST3411Digest.cs b/crypto/src/crypto/digests/GOST3411Digest.cs
index 9f0bec9e6..218adf68c 100644
--- a/crypto/src/crypto/digests/GOST3411Digest.cs
+++ b/crypto/src/crypto/digests/GOST3411Digest.cs
@@ -11,7 +11,7 @@ namespace Org.BouncyCastle.Crypto.Digests
* implementation of GOST R 34.11-94
*/
public class Gost3411Digest
- : IDigest
+ : IDigest, IMemoable
{
private const int DIGEST_LENGTH = 32;
@@ -24,7 +24,7 @@ namespace Org.BouncyCastle.Crypto.Digests
private ulong byteCount;
private readonly IBlockCipher cipher = new Gost28147Engine();
- private readonly byte[] sBox;
+ private byte[] sBox;
private static byte[][] MakeC()
{
@@ -65,22 +65,7 @@ namespace Org.BouncyCastle.Crypto.Digests
*/
public Gost3411Digest(Gost3411Digest t)
{
- this.sBox = t.sBox;
- cipher.Init(true, new ParametersWithSBox(null, sBox));
-
- Reset();
-
- Array.Copy(t.H, 0, this.H, 0, t.H.Length);
- Array.Copy(t.L, 0, this.L, 0, t.L.Length);
- Array.Copy(t.M, 0, this.M, 0, t.M.Length);
- Array.Copy(t.Sum, 0, this.Sum, 0, t.Sum.Length);
- Array.Copy(t.C[1], 0, this.C[1], 0, t.C[1].Length);
- Array.Copy(t.C[2], 0, this.C[2], 0, t.C[2].Length);
- Array.Copy(t.C[3], 0, this.C[3], 0, t.C[3].Length);
- Array.Copy(t.xBuf, 0, this.xBuf, 0, t.xBuf.Length);
-
- this.xBufOff = t.xBufOff;
- this.byteCount = t.byteCount;
+ Reset(t);
}
public string AlgorithmName
@@ -339,5 +324,33 @@ namespace Org.BouncyCastle.Crypto.Digests
{
return 32;
}
+
+ public IMemoable Copy()
+ {
+ return new Gost3411Digest(this);
+ }
+
+ public void Reset(IMemoable other)
+ {
+ Gost3411Digest t = (Gost3411Digest)other;
+
+ this.sBox = t.sBox;
+ cipher.Init(true, new ParametersWithSBox(null, sBox));
+
+ Reset();
+
+ Array.Copy(t.H, 0, this.H, 0, t.H.Length);
+ Array.Copy(t.L, 0, this.L, 0, t.L.Length);
+ Array.Copy(t.M, 0, this.M, 0, t.M.Length);
+ Array.Copy(t.Sum, 0, this.Sum, 0, t.Sum.Length);
+ Array.Copy(t.C[1], 0, this.C[1], 0, t.C[1].Length);
+ Array.Copy(t.C[2], 0, this.C[2], 0, t.C[2].Length);
+ Array.Copy(t.C[3], 0, this.C[3], 0, t.C[3].Length);
+ Array.Copy(t.xBuf, 0, this.xBuf, 0, t.xBuf.Length);
+
+ this.xBufOff = t.xBufOff;
+ this.byteCount = t.byteCount;
+ }
}
+
}
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