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Article #1002Re: pgp2.0 corrupt ??
From: Kurt Cockrum
Date: Sat, 26 Sep 1992 16:12
Date: Sat, 26 Sep 1992 16:12
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In article <1992Sep22.005843.4590@Princeton.EDU> mgflax@phoenix.Princeton.EDU (Marshall G. Flax) writes: >In article <cis.717119132@kraken> cis@kraken.itc.gu.edu.au (Tony O'Hagan) writes: >>I have ftp'd pgp20.zip from 2 different sites (binary mode) and >>downloaded them to my humble PC to discover that PKUNZIP considers >>that SOME of the files are corrupt. I'm currently using PKUNZIP v1.02 . [...list of files & hosts deleted...] It would be nice if the signatures for these were well known. For example, each part of a distribution could have associated with it a hunk of data consisting of signatures from the various checksumming programs, say md4, md5, snefru, brik, etc. This could also apply to the files contained within a distribution, where a self-check could be administered at unpacking time. Gene Kim and Gene Spafford at Purdue are currently betatesting a tool called tripwire that accumulates a database of signatures (including *all* the unix file system attributes). This wouldn't be spoofproof, but when 2 parties disagree about the signature of a file, or of a collection of files (which can be signatures or lists of same), they can investigate further. Publishing signatures of software releases and distributions makes a lot of sense IMO! -- kurt@grogatch.celestial.com (Kurt Cockrum) Nostalgic conservatives will soon be referring to the Bush Era as "those Halcion days of yesteryear".
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Newsgroups: sci.crypt Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!gumby!destroyer!ubc-cs!uw-beaver!uw-coco!nwnexus!ole!ssc!eskimo!kurt From: kurt@eskimo.celestial.com (Kurt Cockrum) Subject: Re: pgp2.0 corrupt ?? Message-ID: <1992Sep26.161200.2243@eskimo.celestial.com> Summary: As an aid in corruption detection, signatures should be well known. Organization: >>> Eskimo North (206)-FOR-EVER <<< References: <cis.717119132@kraken> <1992Sep22.005843.4590@Princeton.EDU> Date: Sat, 26 Sep 1992 16:12:00 GMT Lines: 26