* Drop DC test data for draft23
* DC: Change public key type
There was a last minute change to spec that changes the public key type
from a byte string of length at most 2^16 to a byte string of length at
most 2^24.
* includes AD in authentication check of TLS records
As per 5.2 of TLS 1.3 draft-28, the additional data is record header.
* tests: Update tests in order to support draft-28
* Interoperability: Updates NSS and BoringSSL versions to the
one supporting draft-28
* Bogo: Updates revision number to use tests for draft-28
* FIX: makefile was using test-compat target instead of
test-interop
* DC test: constify
* Use binary interface to encode in big-endian
The test in subcerts_test.go only passes if maxVersion ==
VersionTLS13Draft23. This is because DCs are cryptographically bound to
the protocol version on the wire. To work around this as we move towards
the RFC, this PR adds test data for VersionTLS13Draft28 and VersionTLS13
and uses maxVersion to pick which data to load. # Please enter the
commit message for your changes. Lines starting
