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Article #2237Re: Opinions on RSA's RC2 and RC4?
From: Phil Karn
Date: Tue, 22 Dec 1992 21:30
Date: Tue, 22 Dec 1992 21:30
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In article <1992Dec22.202631.25004@gallant.apple.com> consensus@aol.com (Christopher Allen) writes: >Does anyone have an opinion on the technical merits of RC2 and RC4? Yeah. If NSA will let them out of the country, then they can't be very good at all. It's as simple as that. I understand that for export NSA limits the key sizes for RC2 and RC4 to about 40 bits (although NSA doesn't want this fact generally known). It should be apparent that keys this small can be easily cracked by brute force on modern workstations, no matter how good the algorithms themselves might be with adequately large keys. Phil
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Newsgroups: sci.crypt Path: arc1-ca.pugleaf.net!sparky!uunet!walter!qualcom.qualcomm.com!servo.qualcomm.com!karn From: karn@servo.qualcomm.com (Phil Karn) Subject: Re: Opinions on RSA's RC2 and RC4? Message-ID: <1992Dec22.213023.6850@qualcomm.com> Sender: news@qualcomm.com Nntp-Posting-Host: servo.qualcomm.com Organization: Qualcomm, Inc References: <1992Dec22.202631.25004@gallant.apple.com> Date: Tue, 22 Dec 1992 21:30:23 GMT Lines: 13