ExportParameters()

unsafe override DSAParameters System.Security.Cryptography.DSACng.ExportParameters ( bool includePrivateParameters )

inline

Definition at line 315 of file DSACng.cs.

    {
        byte[] array = ExportKeyBlob(includePrivateParameters);
        global::Interop.BCrypt.KeyBlobMagicNumber keyBlobMagicNumber = (global::Interop.BCrypt.KeyBlobMagicNumber)BitConverter.ToInt32(array, 0);
        CheckMagicValueOfKey(keyBlobMagicNumber, includePrivateParameters);
        DSAParameters result = default(DSAParameters);
        fixed (byte* ptr = array)
        {
            if (keyBlobMagicNumber == global::Interop.BCrypt.KeyBlobMagicNumber.BCRYPT_DSA_PUBLIC_MAGIC || keyBlobMagicNumber == global::Interop.BCrypt.KeyBlobMagicNumber.BCRYPT_DSA_PRIVATE_MAGIC)
            {
                if (array.Length < sizeof(global::Interop.BCrypt.BCRYPT_DSA_KEY_BLOB))
                {
                    throw global::Interop.NCrypt.ErrorCode.E_FAIL.ToCryptographicException();
                }
                global::Interop.BCrypt.BCRYPT_DSA_KEY_BLOB* ptr2 = (global::Interop.BCrypt.BCRYPT_DSA_KEY_BLOB*)ptr;
                int offset = 8;
                result.Counter = BinaryPrimitives.ReadInt32BigEndian(global::Interop.BCrypt.Consume(array, ref offset, 4));
                result.Seed = global::Interop.BCrypt.Consume(array, ref offset, 20);
                result.Q = global::Interop.BCrypt.Consume(array, ref offset, 20);
                result.P = global::Interop.BCrypt.Consume(array, ref offset, ptr2->cbKey);
                result.G = global::Interop.BCrypt.Consume(array, ref offset, ptr2->cbKey);
                result.Y = global::Interop.BCrypt.Consume(array, ref offset, ptr2->cbKey);
                if (includePrivateParameters)
                {
                    result.X = global::Interop.BCrypt.Consume(array, ref offset, 20);
                }
            }
            else
            {
                if (array.Length < sizeof(global::Interop.BCrypt.BCRYPT_DSA_KEY_BLOB_V2))
                {
                    throw global::Interop.NCrypt.ErrorCode.E_FAIL.ToCryptographicException();
                }
                global::Interop.BCrypt.BCRYPT_DSA_KEY_BLOB_V2* ptr3 = (global::Interop.BCrypt.BCRYPT_DSA_KEY_BLOB_V2*)ptr;
                int offset = sizeof(global::Interop.BCrypt.BCRYPT_DSA_KEY_BLOB_V2) - 4;
                result.Counter = BinaryPrimitives.ReadInt32BigEndian(global::Interop.BCrypt.Consume(array, ref offset, 4));
                result.Seed = global::Interop.BCrypt.Consume(array, ref offset, ptr3->cbSeedLength);
                result.Q = global::Interop.BCrypt.Consume(array, ref offset, ptr3->cbGroupSize);
                result.P = global::Interop.BCrypt.Consume(array, ref offset, ptr3->cbKey);
                result.G = global::Interop.BCrypt.Consume(array, ref offset, ptr3->cbKey);
                result.Y = global::Interop.BCrypt.Consume(array, ref offset, ptr3->cbKey);
                if (includePrivateParameters)
                {
                    result.X = global::Interop.BCrypt.Consume(array, ref offset, ptr3->cbGroupSize);
                }
            }
            if (result.Counter == -1)
            {
                result.Counter = 0;
                result.Seed = null;
            }
            return result;
        }
    }

References System.array, System.Security.Cryptography.DSACng.CheckMagicValueOfKey(), System.Security.Cryptography.DSAParameters.Counter, System.Security.Cryptography.DSACng.ExportKeyBlob(), System.offset, System.Buffers.Binary.BinaryPrimitives.ReadInt32BigEndian(), and System.BitConverter.ToInt32().