GetNamedCurveBlob() [2/2]

static unsafe byte[] System.Security.Cryptography.ECCng.GetNamedCurveBlob ( ref ECParameters parameters, bool ecdh )

inlinestaticpackage

Definition at line 94 of file ECCng.cs.

    {
        bool flag = parameters.D != null;
        int num = sizeof(global::Interop.BCrypt.BCRYPT_ECCKEY_BLOB) + parameters.Q.X.Length + parameters.Q.Y.Length;
        if (flag)
        {
            num += parameters.D.Length;
        }
        byte[] array = new byte[num];
        fixed (byte* ptr = &array[0])
        {
            global::Interop.BCrypt.BCRYPT_ECCKEY_BLOB* ptr2 = (global::Interop.BCrypt.BCRYPT_ECCKEY_BLOB*)ptr;
            ptr2->Magic = (ecdh ? EcdhCurveNameToMagicNumber(parameters.Curve.Oid.FriendlyName, flag) : EcdsaCurveNameToMagicNumber(parameters.Curve.Oid.FriendlyName, flag));
            ptr2->cbKey = parameters.Q.X.Length;
            int offset = sizeof(global::Interop.BCrypt.BCRYPT_ECCKEY_BLOB);
            global::Interop.BCrypt.Emit(array, ref offset, parameters.Q.X);
            global::Interop.BCrypt.Emit(array, ref offset, parameters.Q.Y);
            if (flag)
            {
                global::Interop.BCrypt.Emit(array, ref offset, parameters.D);
            }
        }
        return array;
    }

References System.array, System.Security.Cryptography.ECCng.EcdhCurveNameToMagicNumber(), System.Security.Cryptography.ECCng.EcdsaCurveNameToMagicNumber(), and System.offset.