in reply to Re: checksum of subroutine
in thread checksum of subroutine
A hacker can replace needed bits in a file, then add other bits so that the overall file checksum stays valid. Doing that gets quantum if you have to hack the subroutines and file checksums.
As for RecDescent, if I could get at the text of a sub I could parse the sub and checksum it myself. The trick is to get at the text of the subroutine. That is where the question lies. Parse::RecDescent needs something like "$text", where $text is the text of the subroutine. You cannot hand it just a coderef. :-)
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Re^3: checksum of subroutine
by CountZero (Bishop) on Aug 10, 2012 at 19:00 UTC | |
Re^3: checksum of subroutine
by AnomalousMonk (Archbishop) on Aug 10, 2012 at 18:56 UTC | |
Re^3: checksum of subroutine
by tobyink (Canon) on Aug 10, 2012 at 21:24 UTC | |
by mnooning (Beadle) on Aug 13, 2012 at 16:53 UTC |
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