Most crypto bugs seem to end up being a case where any useful description of the vulnerability is sufficient for a competent attacker to reproduce the problem.

Most crypto bugs seem to end up being a case where any useful description of the vulnerability is sufficient for a competent attacker to reproduce the problem. In other words, if it came down to just the "codes" (i.e., secret keys) making the difference of whether or not the system was secure in general, then the crypto would probably be strong.