SHA-3 Buffer Overflow

Re:SHA-3 Buffer Overflow by tptacek on Thursday October 20, 2022 @07:17PM (#33282080)

Let's try! Gimme a sec. And: to be clear: I make no representation that this code proves anything, and people should of course take a hard look at the SHA3 amd64 assembly code. I'm just having a message board discussion.

One sec and I'll get you an answer to your thing about the extra write.

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Re:SHA-3 Buffer Overflow by tptacek on Thursday October 20, 2022 @07:19PM (#33282110)

With the extra write:

    c5bcc3bc73b5ef45e91d2d7c70b64f196fac08eee4e4acf6e6571ebe

With the extra write and an extra byte on the big write (to try to trigger the loop condition):

    ec66be1ebccf055f839fccf2d12e641dcbbda4f5c71a3bdee6509495

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