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A comment on The Little MAC Attack. Parent comment

Re:The Little MAC Attack by jessaustin on Tuesday May 12, 2015 @09:31PM (#9536177)
I think the point was that if some dumb protocol were misusing HMAC (and I'm not good enough at thinking about protocols to imagine how it might do so), it could be vulnerable to collisions generated this way.
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Re:The Little MAC Attack by tptacek on Tuesday May 12, 2015 @09:50PM (#9536257)
The point of the parent commenter is that a misuse of HMAC that gives attackers knowledge of the key admits much simpler attacks than this.
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