[cryptography] Oracle Padding attack

travis+ml-rbcryptography at subspacefield.org travis+ml-rbcryptography at subspacefield.org
Tue Sep 14 19:20:08 EDT 2010

Ptacek's matasano post is gone (due to ZFO) but here's my attempt to
reconstruct from memory:


Vaudenay's original paper should be consulted for accuracy.

Minor improvement: once you know one valid pad octet, you know the
entire padding; no need to solve them.
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