Bugtraq mailing list archives
Re: Lotus Notes Encryption Strategies
From: Ollivier.Robert () hsc fr net (Ollivier Robert)
Date: Tue, 14 Mar 1995 22:05:11 +0100 (MET)
I have been looking at the methods used by Lotus Notes to do encryption on its mail transfers. It seems to use RC4 (Rivest Cipher) for domestic communications and RC2 for international communications.
Are you implying that RC2 is weaker than RC4 ? I've heard that the international version used RC4 with a 40 bit keys ... RC4 is known because someone posted on Usenet a source believed to be if not the actual source at least something compatible with it.
Both these keys seem rather small in comparison to something like PGP's 1028bit key.
Remember that PGP key sizes are for RSA not IDEA. IDEA uses 128 bits keys so the key sizes are equivalent. Noone knows anything -- to my knowledge -- about RC2 except that it is a block cipher (RC4 is a stream cipher). -- Ollivier ROBERT -=-=- Herve Schauer Consultants -=-=- roberto () hsc fr net -=-=-=-=-=- Support The Free UNIX Systems ! FreeBSD Linux NetBSD -=-=-=-=-=-
Current thread:
- Lotus Notes Encryption Strategies Software Test Account (Mar 14)
- Re: Lotus Notes Encryption Strategies Ollivier Robert (Mar 14)
- Re: Lotus Notes Encryption Strategies Adam Shostack (Mar 14)
- Re: Lotus Notes Encryption Strategies Perry E. Metzger (Mar 14)
- MIME encoding in Web browser forms Dr. Frederick B. Cohen (Mar 14)
- <Possible follow-ups>
- Re: Lotus Notes Encryption Strategies Paul C Leyland (Mar 15)