HashDataUsingPseudoHandle()

static unsafe void Internal.Cryptography.HashProviderDispenser.OneShotHashProvider.HashDataUsingPseudoHandle ( string hashAlgorithmId, ReadOnlySpan< byte > source, ReadOnlySpan< byte > key, bool isHmac, Span< byte > destination, out int hashSize )

inlinestaticprivate

Definition at line 46 of file HashProviderDispenser.cs.

        {
            hashSize = 0;
            global::Interop.BCrypt.BCryptAlgPseudoHandle bCryptAlgPseudoHandle;
            int num;
            switch (hashAlgorithmId)
            {
            case "MD5":
                bCryptAlgPseudoHandle = (isHmac ? global::Interop.BCrypt.BCryptAlgPseudoHandle.BCRYPT_HMAC_MD5_ALG_HANDLE : global::Interop.BCrypt.BCryptAlgPseudoHandle.BCRYPT_MD5_ALG_HANDLE);
                num = 16;
                break;
            case "SHA1":
                bCryptAlgPseudoHandle = (isHmac ? global::Interop.BCrypt.BCryptAlgPseudoHandle.BCRYPT_HMAC_SHA1_ALG_HANDLE : global::Interop.BCrypt.BCryptAlgPseudoHandle.BCRYPT_SHA1_ALG_HANDLE);
                num = 20;
                break;
            case "SHA256":
                bCryptAlgPseudoHandle = (isHmac ? global::Interop.BCrypt.BCryptAlgPseudoHandle.BCRYPT_HMAC_SHA256_ALG_HANDLE : global::Interop.BCrypt.BCryptAlgPseudoHandle.BCRYPT_SHA256_ALG_HANDLE);
                num = 32;
                break;
            case "SHA384":
                bCryptAlgPseudoHandle = (isHmac ? global::Interop.BCrypt.BCryptAlgPseudoHandle.BCRYPT_HMAC_SHA384_ALG_HANDLE : global::Interop.BCrypt.BCryptAlgPseudoHandle.BCRYPT_SHA384_ALG_HANDLE);
                num = 48;
                break;
            case "SHA512":
                bCryptAlgPseudoHandle = (isHmac ? global::Interop.BCrypt.BCryptAlgPseudoHandle.BCRYPT_HMAC_SHA512_ALG_HANDLE : global::Interop.BCrypt.BCryptAlgPseudoHandle.BCRYPT_SHA512_ALG_HANDLE);
                num = 64;
                break;
            default:
                throw new CryptographicException();
            }
            if (destination.Length < num)
            {
                throw new CryptographicException();
            }
            fixed (byte* pbSecret = &MemoryMarshal.GetReference(key))
            {
                fixed (byte* pbInput = &MemoryMarshal.GetReference(source))
                {
                    fixed (byte* pbOutput = &MemoryMarshal.GetReference(destination))
                    {
                        global::Interop.BCrypt.NTSTATUS nTSTATUS = global::Interop.BCrypt.BCryptHash((nuint)bCryptAlgPseudoHandle, pbSecret, key.Length, pbInput, source.Length, pbOutput, num);
                        if (nTSTATUS != 0)
                        {
                            throw global::Interop.BCrypt.CreateCryptographicException(nTSTATUS);
                        }
                    }
                }
            }
            hashSize = num;
        }

References System.destination, System.key, and System.source.

Referenced by Internal.Cryptography.HashProviderDispenser.OneShotHashProvider.HashData(), and Internal.Cryptography.HashProviderDispenser.OneShotHashProvider.MacData().