tree 78b4bd094cfd263b9c40f7847bbadf1c49224a2b
parent f1e3e4abecfc2ce6346e981cb5dc8c51336ab2f2
author nharper <nharper@google.com> 1569628120 -0700
committer Copybara-Service <copybara-worker@google.com> 1569959756 -0700

Use 16-byte auth tags when initial obfuscators are used

QuicFramer assumes that the auth tag is the same length for all encryption
levels. In Google QUIC crypto versions where initial obfuscators are used,
we should use IETF style crypters (different nonce/IV construction and 16
byte instead of 12 byte auth tags).

gfe-relnote: Change encryption used in QUIC. Protected by quic_enable_version_99
PiperOrigin-RevId: 271674606
Change-Id: Ic7736908068eeee8077bd3a17ec4f8b4112254f9