Article View: comp.security.misc
Article #552Re: Tripwire release
From: Gene Spafford
Date: Sun, 15 Nov 1992 18:56
Date: Sun, 15 Nov 1992 18:56
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In article <1992Nov13.004708.26881@cs.sandia.gov> mccurley@cs.sandia.gov (Kevin McCurley) writes: From: mccurley@cs.sandia.gov (Kevin McCurley) Newsgroups: comp.security.misc,alt.security,comp.unix.admin Date: 13 Nov 92 00:47:08 GMT I stated earlier that NONE of these, including MD5, Snefru, and MD4, are signatures in the cryptographic sense. A true signature would require something like RSA or DSA layered on a one-way hash function like MD5 or SHA. We have seen the word "signature" used in different ways in the literature and the general user community. Our use of the word in the Tripwire documentation was in the sense of other uses we had seen. Perhaps we should put little quote marks around the word, or put a footnote that some people have a more restrictive definition of signature than what we used.... The basic point made by GeneK was that the program has a simple-extension feature to include whatever other algorithm you wish. For instance, if you wish to apply DES in CBC mode, and save the last 64 or 128 bits as a signature, you can (and it doesn't need to be layered on top of anything else to work). Or encode using your favorite RSA key before running the CRC...whatever method you choose. Is anyone using Tripwire, or is the only traffic about the terminology used in the README file? :-)
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arc1-ca.pugleaf.net!sparky!uunet!gatech!usenet.ins.cwru.edu!agate!spool.mu.edu!sdd.hp.com!news.cs.indiana.edu!noose.ecn.purdue.edu!mentor.cc.purdue.edu!purdue!spafReferences:
<1992Nov6.161125.10283@ghost.dsi.unimi.it> <1992Nov06.173036.28994@watson.ibm.com> <BxMEuE.CwC@mentor.cc.purdue.edu> <1992Nov13.004708.26881@cs.sandia.gov>Show Full Headers
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Newsgroups: comp.security.misc,alt.security,comp.unix.admin Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!usenet.ins.cwru.edu!agate!spool.mu.edu!sdd.hp.com!news.cs.indiana.edu!noose.ecn.purdue.edu!mentor.cc.purdue.edu!purdue!spaf From: spaf@cs.purdue.EDU (Gene Spafford) Subject: Re: Tripwire release In-Reply-To: mccurley@cs.sandia.gov's message of 13 Nov 92 00:47:08 GMT Message-ID: <SPAF.92Nov15135616@uther.cs.purdue.EDU> Sender: news@mentor.cc.purdue.edu (USENET News) Organization: Department of Computer Sciences, Purdue University References: <1992Nov6.161125.10283@ghost.dsi.unimi.it> <1992Nov06.173036.28994@watson.ibm.com> <BxMEuE.CwC@mentor.cc.purdue.edu> <1992Nov13.004708.26881@cs.sandia.gov> Date: Sun, 15 Nov 1992 18:56:16 GMT Lines: 27