public static byte[] EndHashData(SafeHashHandleImpl hashHandle)
{
uint dataLength = 0;
if (!CryptoApi.CryptGetHashParam(hashHandle, Constants.HP_HASHVAL, null, ref dataLength, 0))
{
throw CreateWin32Error();
}
var data = new byte[dataLength];
if (!CryptoApi.CryptGetHashParam(hashHandle, Constants.HP_HASHVAL, data, ref dataLength, 0))
{
throw CreateWin32Error();
}
return(data);
}
private static void SetHashValue(SafeHashHandleImpl hashHandle, byte[] hashValue)
{
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();
}
}
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);
}