private static SafeHashHandleImpl SetupHashAlgorithm(SafeProvHandleImpl providerHandle, byte[] hashValue) { var hashHandle = CreateHash_3411_94(providerHandle); uint hashLength = 0; if (!CryptoApi.CryptGetHashParam(hashHandle, Constants.HP_HASHVAL, null, ref hashLength, 0)) { throw CreateWin32Error(); } if (hashValue.Length != hashLength) { throw ExceptionUtility.CryptographicException(Constants.NTE_BAD_HASH); } if (!CryptoApi.CryptSetHashParam(hashHandle, Constants.HP_HASHVAL, hashValue, 0)) { throw CreateWin32Error(); } return(hashHandle); }