Re: Re: Jail Cell Cipher (modified RC4)

2002-02-24 Thread Joseph Ashwood
- Original Message - From: "Jeremy Lennert" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, February 23, 2002 8:15 AM Subject: CDR: Re: Jail Cell Cipher (modified RC4) > > Unfortunately it has a rather damning effect on the cipher. > > Fir

Re: Jail Cell Cipher (modified RC4)

2002-02-24 Thread AARG! Anonymous
Paul Crowley has shown that Schneier's Solitaire cipher is insecure. See http://www.ciphergoth.org/crypto/solitaire/. Repetitions occur with frequence 1/22.5 rather than 1/26 as they should. Also, the state machine is not reversible, contrary to the design intent.

Re: Jail Cell Cipher (modified RC4)

2002-02-23 Thread Jeremy Lennert
> Unfortunately it has a rather damning effect on the cipher. > First in the key > scheduling there is a distinct possibility of keys that are > impossible. It > assumes that all K[i] are generators mod 37, so using a key > where the offset > is 0 will result in an infinite loop in the key schedul

Re: Jail Cell Cipher (modified RC4)

2002-02-23 Thread Meyer Wolfsheim
On Fri, 22 Feb 2002, Neil Johnson wrote: > I believe that Ron Rivest (the R in RC4) has already created a version for > "jail-cell" use. > > Pick up a copy of "Cryptonomicon" by Neal Stephenson. It's used in the book > and there is an appendix in > the back that explains the algorithm in good det

Re: RE: Jail Cell Cipher (modified RC4)

2002-02-22 Thread Joseph Ashwood
- Original Message - From: "Jeremy Lennert" <[EMAIL PROTECTED]> To: "'Neil Johnson'" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>; "'R. A. Hettinga'" <[EMAIL PROTECTED]> Sent: Friday, February 22, 2002 10:15 PM Subje

RE: Jail Cell Cipher (modified RC4)

2002-02-22 Thread Jeremy Lennert
> -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On > Behalf Of Jeremy Lennert > Sent: Friday, February 22, 2002 10:16 PM > To: 'Neil Johnson'; [EMAIL PROTECTED]; 'R. A. Hettinga' > Subject: CDR: RE: Jail Cell Cipher (modifie

Re: Jail Cell Cipher (modified RC4)

2002-02-22 Thread Steve
ennert <[EMAIL PROTECTED]>; [EMAIL PROTECTED] <[EMAIL PROTECTED]> Date: Friday, February 22, 2002 11:30 PM Subject: Re: Jail Cell Cipher (modified RC4) >I believe that Ron Rivest (the R in RC4) has already created a version for >"jail-cell" use. > >Pick up a co

RE: Jail Cell Cipher (modified RC4)

2002-02-22 Thread Jeremy Lennert
ce & Peace, Jeremy > -Original Message- > From: Neil Johnson [mailto:[EMAIL PROTECTED]] > Sent: Friday, February 22, 2002 9:29 PM > To: Jeremy Lennert; [EMAIL PROTECTED]; R. A. Hettinga > Subject: Re: Jail Cell Cipher (modified RC4) > > > Yep, I stand corrected. &

Re: Jail Cell Cipher (modified RC4)

2002-02-22 Thread Neil Johnson
ROTECTED]> To: "Neil Johnson" <[EMAIL PROTECTED]>; "Jeremy Lennert" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Friday, February 22, 2002 10:51 PM Subject: Re: Jail Cell Cipher (modified RC4) > At 10:28 PM -0600 on 2/22/02, Neil Johnson wrote: > > &

Re: Jail Cell Cipher (modified RC4)

2002-02-22 Thread R. A. Hettinga
At 10:28 PM -0600 on 2/22/02, Neil Johnson wrote: > I believe that Ron Rivest (the R in RC4) has already created a version for > "jail-cell" use. Schneier did Solitaire. Cheers, RAH -- - R. A. Hettinga The Internet Bearer Underwriting Corporation 44 Fa