fn test_agreement_ecdh_p384()

in aws-lc-rs/src/agreement.rs [1000:1061]

• 53 lines of code
• 1 McCabe index (conditional complexity)

    fn test_agreement_ecdh_p384() {
        let alg = &ECDH_P384;
        let peer_public = UnparsedPublicKey::new(
            alg,
            test::from_dirty_hex(
                "04E558DBEF53EECDE3D3FCCFC1AEA08A89A987475D12FD950D83CFA41732BC509D0D1AC43A0336DEF96FDA41D0774A3571DCFBEC7AACF3196472169E838430367F66EEBE3C6E70C416DD5F0C68759DD1FFF83FA40142209DFF5EAAD96DB9E6386C",
            ),
        );

        let my_private = test::from_dirty_hex(
            "099F3C7034D4A2C699884D73A375A67F7624EF7C6B3C0F160647B67414DCE655E35B538041E649EE3FAEF896783AB194",
        );

        let my_private = {
            let rng = test::rand::FixedSliceRandom { bytes: &my_private };
            PrivateKey::generate_for_test(alg, &rng).unwrap()
        };

        let my_public = test::from_dirty_hex(
            "04667842D7D180AC2CDE6F74F37551F55755C7645C20EF73E31634FE72B4C55EE6DE3AC808ACB4BDB4C88732AEE95F41AA9482ED1FC0EEB9CAFC4984625CCFC23F65032149E0E144ADA024181535A0F38EEB9FCFF3C2C947DAE69B4C634573A81C",
        );
        let output = test::from_dirty_hex(
            "11187331C279962D93D604243FD592CB9D0A926F422E47187521287E7156C5C4D603135569B9E9D09CF5D4A270F59746",
        );

        assert_eq!(my_private.algorithm(), alg);

        let be_private_key_buffer: EcPrivateKeyBin = my_private.as_be_bytes().unwrap();
        let be_private_key =
            PrivateKey::from_private_key(&ECDH_P384, be_private_key_buffer.as_ref()).unwrap();
        {
            let result = agree(&be_private_key, &peer_public, (), |key_material| {
                assert_eq!(key_material, &output[..]);
                Ok(())
            });
            assert_eq!(result, Ok(()));
        }

        let der_private_key_buffer: EcPrivateKeyRfc5915Der = my_private.as_der().unwrap();
        let der_private_key =
            PrivateKey::from_private_key_der(&ECDH_P384, der_private_key_buffer.as_ref()).unwrap();
        {
            let result = agree(&der_private_key, &peer_public, (), |key_material| {
                assert_eq!(key_material, &output[..]);
                Ok(())
            });
            assert_eq!(result, Ok(()));
        }

        let computed_public = my_private.compute_public_key().unwrap();
        assert_eq!(computed_public.as_ref(), &my_public[..]);

        assert_eq!(computed_public.algorithm(), alg);

        {
            let result = agree(&my_private, &peer_public, (), |key_material| {
                assert_eq!(key_material, &output[..]);
                Ok(())
            });
            assert_eq!(result, Ok(()));
        }
    }