This commit adds four known answer tests for TLS 1.3 record protection
from the following sources:
- RFC 8448 "Example Handshake Traces for TLS 1.3"
- tls13.ulfheim.net "The New Illustrated TLS Connection"
It extends the test coverage of the existing record protection tests
in the following ways:
- The existing record protection tests hand-craft record transform
structures; the new tests use the function
mbedtls_ssl_tls13_populate_transform()
from library source to create an TLS 1.3 transform from raw
key material and connection information.
- The existing record protection tests only check that encryption
and decryption are inverse to each other; as such, they don't
catch non-compliant implementations of encryption and decryption
which happen to be inverse to each other. By adding a known answer
test for TLS 1.3 record protection, can gain confidence that our
implementation is indeed standards-compliant.
Signed-off-by: Hanno Becker <hanno.becker@arm.com>