My goal here is to allow read-only access to legacy key material without allowing new V3 keys or signatures.
R=agl
CC=golang-dev
https://golang.org/cl/12746046
This is a followup to issue 6927044. I *really* don't want to
break streaming for large encrypted data packets.
Removing the automatic re-parsing. OpaqueReader can be
used for recovering useful information from mangled/unsupported packets.
R=agl
CC=golang-dev
https://golang.org/cl/6944056