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- Newsgroups: sci.crypt
- Path: sparky!uunet!gatech!destroyer!Tygra.Michigan.COM!dave
- From: dave@tygra.Michigan.COM (David Conrad)
- Subject: Re: Opinions on RSA's RC2 and RC4?
- Organization: CAT-TALK Conferencing System
- Date: Wed, 23 Dec 1992 14:52:29 GMT
- Message-ID: <1992Dec23.145230.27856dave@tygra.Michigan.COM>
- References: <1992Dec22.202631.25004@gallant.apple.com> <1992Dec22.213023.6850@qualcomm.com> <bontchev.725111504@fbihh>
- Lines: 23
-
- In article <bontchev.725111504@fbihh> bontchev@fbihh.informatik.uni-hamburg.de writes:
- >karn@servo.qualcomm.com (Phil Karn) writes:
- >> 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.
- >
- >Hmm... I've heard ... that there is an exportable
- >version of MailSafe, which is limited to 512 (... 540?) bit keys
- >... Does that mean that NSA can factor such
- >numbers?...
-
- Probably not. Was it not that the reduction in key size for DES from
- 128- to 56-bits (with redesigned S-boxen) resulted in a stronger cipher
- once differential cryptanalysis was taken into account?
-
- Perhaps I remember wrong, I'm no expert. The U.S. has somewhat
- skewed views on these things, but this still isn't France.
-
- David R. Conrad
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