public virtual byte[] Sm2GetZ(byte[] userId, ECPoint userKey)
{
Sm3Digest sM3Digest = new Sm3Digest();
int num = userId.Length * 8;
sM3Digest.Update((byte)((num >> 8) & 0xFF));
sM3Digest.Update((byte)(num & 0xFF));
sM3Digest.BlockUpdate(userId, 0, userId.Length);
byte[] array = EccA.ToByteArray();
sM3Digest.BlockUpdate(array, 0, array.Length);
array = EccB.ToByteArray();
sM3Digest.BlockUpdate(array, 0, array.Length);
array = EccGx.ToByteArray();
sM3Digest.BlockUpdate(array, 0, array.Length);
array = EccGy.ToByteArray();
sM3Digest.BlockUpdate(array, 0, array.Length);
array = userKey.AffineXCoord.ToBigInteger().ToByteArray();
sM3Digest.BlockUpdate(array, 0, array.Length);
array = userKey.AffineYCoord.ToBigInteger().ToByteArray();
sM3Digest.BlockUpdate(array, 0, array.Length);
byte[] array2 = new byte[sM3Digest.GetDigestSize()];
sM3Digest.DoFinal(array2, 0);
return(array2);
}
public Sm3Digest(Sm3Digest t) : base(t)
{
Array.Copy(X, 0, X, 0, X.Length);
_offset = t._offset;
Array.Copy(t._v, 0, _v, 0, t._v.Length);
}