[Cryptography] Langsec & authentication

[James A. Donald]

On 2014-05-28 05:30, Judson Lester wrote:
> But, and this is the other half of my dilemma, authenticating
> ambiguous blobs of data opens a giant hole in your MAC system: here's
> two documents that mean "re-order coffee" and "nuke North Korea" with
> the same MAC. Oops. And while that's theoretically possible
> regardless, it becomes much easier to do if there's many many ways to
> say "nuke North Korea."

Again, ASN.1 CANONICAL-PER