private static SafeHashHandleImpl CreateHash_3411(SafeProvHandleImpl providerHandle, int hashAlgId)
{
var hashHandle = SafeHashHandleImpl.InvalidHandle;
if (!CryptoApi.CryptCreateHash(providerHandle, (uint)hashAlgId, SafeKeyHandleImpl.InvalidHandle, 0, ref hashHandle))
{
throw CreateWin32Error();
}
return(hashHandle);
}
public static SafeHashHandleImpl CreateHashImit(SafeProvHandleImpl providerHandle, SafeKeyHandleImpl symKeyHandle)
{
var hashImitHandle = SafeHashHandleImpl.InvalidHandle;
if (!CryptoApi.CryptCreateHash(providerHandle, Constants.CALG_G28147_IMIT, symKeyHandle, 0, ref hashImitHandle))
{
throw CreateWin32Error();
}
return(hashImitHandle);
}
private static SafeHashHandleImpl CreateHashHMAC(SafeProvHandleImpl providerHandle, SafeKeyHandleImpl symKeyHandle, int hmacAlgId)
{
var hashHmacHandle = SafeHashHandleImpl.InvalidHandle;
if (!CryptoApi.CryptCreateHash(providerHandle, (uint)hmacAlgId, symKeyHandle, 0, ref hashHmacHandle))
{
var errorCode = Marshal.GetLastWin32Error();
if (errorCode == Constants.NTE_BAD_ALGID)
{
throw ExceptionUtility.CryptographicException(Resources.AlgorithmNotAvailable);
}
throw ExceptionUtility.CryptographicException(errorCode);
}
return(hashHmacHandle);
}
public static SafeHashHandleImpl CreateHashHmac(SafeProvHandleImpl providerHandle, SafeKeyHandleImpl symKeyHandle)
{
var hashHmacHandle = SafeHashHandleImpl.InvalidHandle;
var hmacAlgId = (GostCryptoConfig.ProviderType == ProviderTypes.VipNet) ? Constants.CALG_GR3411_HMAC34 : Constants.CALG_GR3411_HMAC;
if (!CryptoApi.CryptCreateHash(providerHandle, (uint)hmacAlgId, symKeyHandle, 0, ref hashHmacHandle))
{
var errorCode = Marshal.GetLastWin32Error();
if (errorCode == Constants.NTE_BAD_ALGID)
{
throw ExceptionUtility.CryptographicException(Resources.AlgorithmNotAvailable);
}
throw ExceptionUtility.CryptographicException(errorCode);
}
return(hashHmacHandle);
}
