RE: Paranoid Encryption Standard (was Re: Rijndael Hitachi)

2000-11-02 Thread Arnold G. Reinhold
At 9:16 PM -0400 10/28/2000, John Kelsey wrote: I'll comment more on this from another note of yours. I think you're probably right, but that we need to figure out how to really nail that argument down, which means specifying exactly what's meant by ``close to an inverse,'' or whatever. I have

RE: Paranoid Encryption Standard (was Re: Rijndael Hitachi)

2000-10-29 Thread John Kelsey
-BEGIN PGP SIGNED MESSAGE- At 04:20 PM 10/27/00 -0400, Arnold G. Reinhold wrote: At 1:00 PM -0500 10/27/2000, Carskadden, Rush wrote: Are you guys still talking about the feasibility of a cipher that implements each AES candidate in turn with the same key? I don't really get this idea.

Re: Paranoid Encryption Standard (was Re: Rijndael Hitachi)

2000-10-27 Thread Damien Miller
On Thu, 26 Oct 2000, Arnold G. Reinhold wrote: simple way to combine the AES finalists and take advantage of all the testing that each has already undergone. And, IMHO, it is an interesting theoretical question as well. Even if the answer is "yes," I am not advocating that it be used in

Re: Paranoid Encryption Standard (was Re: Rijndael Hitachi)

2000-10-27 Thread Ed Gerck
"Arnold G. Reinhold" wrote: At 2:14 PM -0700 10/20/2000, Bram Cohen wrote: This is just silly. There's nothing wrong with Rijndael. ... Testing is the most expensive part of any new cipher effort. So I think there is a practical basis for at least asking if there is a simple way to

RE: Paranoid Encryption Standard (was Re: Rijndael Hitachi)

2000-10-27 Thread Carskadden, Rush
Title: RE: Paranoid Encryption Standard (was Re: Rijndael Hitachi) Are you guys still talking about the feasibility of a cipher that implements each AES candidate in turn with the same key? I don't really get this idea. Provided you were actually using the same key with each stage

Re: Paranoid Encryption Standard (was Re: Rijndael Hitachi)

2000-10-26 Thread Arnold G. Reinhold
At 2:14 PM -0700 10/20/2000, Bram Cohen wrote: This is just silly. There's nothing wrong with Rijndael. Maybe so. I do agree that Rijndael is an excellent design and a good choice for AES. But it hasn't been tested enough for complete confidence, in my opinion. Supposedly NSA takes 7 years to

Re: Paranoid Encryption Standard (was Re: Rijndael Hitachi)

2000-10-24 Thread John Kelsey
-BEGIN PGP SIGNED MESSAGE- At 02:26 PM 10/20/00 -0400, Arnold G. Reinhold wrote: At 8:13 PM -0400 10/11/2000, John Kelsey wrote: ... I read the Massey and Maurer paper (One can find it at http://www.isi.ee.ethz.ch/publications/isipap/umaure-mass-inspec-1993 1.pdf ) and I have a couple

Paranoid Encryption Standard (was Re: Rijndael Hitachi)

2000-10-20 Thread Arnold G. Reinhold
At 8:13 PM -0400 10/11/2000, John Kelsey wrote: -BEGIN PGP SIGNED MESSAGE- At 01:44 PM 10/10/00 -0400, Arnold G. Reinhold wrote: ... I was thinking it might be useful to define a "Paranoid Encryption Standard (PES)" that is a concatenation of all five AES finalists, applied in

Re: Glass doors [was: Rijndael Hitachi] cpunk

2000-10-16 Thread Trei, Peter
-- From: [EMAIL PROTECTED][SMTP:[EMAIL PROTECTED]] I wouldn't recommend boobytrapping the glass in that manner. I'd go with a ballistic laminate on the glass. [...] Ed At 02:51 PM 10/14/00 -0700, jim bell wrote: The solution is obvious, to a chemist. Make the glass

Re: Rijndael Hitachi

2000-10-16 Thread ..
Wouldn't an errant BB, baseball, etc. blow your house to matchsticks with this scenario? Or just all the glass, assuming you didn't do that yourself "Tim Allen-ing" this thing into place? I guess if you used just enough explosive to blow the glass into dust, you basically accomplish the bad guys

Re: Multi-part security solutions (Was: Re: Rijndael Hitachi)

2000-10-12 Thread John Kelsey
-BEGIN PGP SIGNED MESSAGE- At 04:57 PM 10/11/00 -0700, Meyer Wolfsheim wrote: The only reasons I see for having a security system (be it an encryption product, or a physical access device) with a large discrepancy in the level of security that the individual components provide is

Re: Multi-part security solutions (Was: Re: Rijndael Hitachi)

2000-10-12 Thread Bill Stewart
At 06:11 PM 10/11/00 -0700, Tim May wrote: A Medeco lock on a glass door may seem crazy, but a pickable lock on a glass door means those who know how to pick locks--like cops who have access to lock guns--can enter at will without any persistent evidence of their intrusion. Intrusion

Re: Rijndael Hitachi

2000-10-10 Thread Vin McLellan
Arnold G. Reinhold [EMAIL PROTECTED] asked: What is the licensing status of the other finalists? For example, I seem to recall reading that RC6 would be licensed to the public at no charge if it won the competition. What now? Since April, RC6 has being commercially

Re: Rijndael Hitachi

2000-10-10 Thread Arnold G. Reinhold
Thanks for the summary. My only problem with Rijndael is that it is still rather young. I recall reading that NSA takes seven years to qualify a new cipher. It took at least that long for the open cryptographic community to trust DES. If someone asked me what cipher to use today in a new,

Re: Rijndael Hitachi

2000-10-10 Thread Michael Paul Johnson
At 01:44 PM 10/10/00 -0400, Arnold G. Reinhold wrote: Thanks for the summary. My only problem with Rijndael is that it is still rather young. I recall reading that NSA takes seven years to qualify a new cipher. It took at least that long for the open cryptographic community to trust DES. If

Re: Rijndael Hitachi

2000-10-10 Thread Vin McLellan
Listing the Fab Four who were AES finalists with Rijndael, I wrote: Serpent is public domain, now under the GNU PUBLIC LICENSE (GPL), although Serpent website warns that "some comments in the code still say otherwise." http://www.cl.cam.ac.uk/~rja14/serpent.html I should

Re: Rijndael Hitachi

2000-10-08 Thread Bram Cohen
On Sun, 8 Oct 2000, Vin McLellan wrote: Myself, I wouldn't blame NIST if they factored, as you suggest, avoidance of endless legal hassles into their decision-making process. With the current state of patents, it is literally impossible to do anything with a computer without

Re: Rijndael Hitachi

2000-10-05 Thread Vin McLellan
On Wed, 04 Oct 2000, Vin McLellan me wrote: Not to take anything from Rijndael, which is both popular and widely respected among many critical professionals, but I suspect that one of the more long-lasting (pseudo-conspiratorial) theories about the selection of