Re: Linux-based wireless mesh suite adds crypto engine support

2004-10-06 Thread Ben Laurie
John Gilmore wrote: Crypto hardware that generates random numbers can't be tested in production in many useful ways. My suggestion would be to XOR a hardware-generated and a software-generated random number stream. If one fails, whether by accident, malice, or design, the other will still

Re: Linux-based wireless mesh suite adds crypto engine support

2004-10-05 Thread David Honig
At 03:25 PM 9/30/04 -0700, John Gilmore wrote: Crypto hardware that generates random numbers can't be tested in production in many useful ways. My suggestion would be to XOR a hardware-generated and a software-generated random number stream. If one fails, whether by accident, malice, or design,

Re: Linux-based wireless mesh suite adds crypto engine support

2004-10-05 Thread John Kelsey
From: John Gilmore [EMAIL PROTECTED] Sent: Sep 30, 2004 6:25 PM To: [EMAIL PROTECTED], [EMAIL PROTECTED] Subject: Re: Linux-based wireless mesh suite adds crypto engine support Crypto hardware that does algorithms can be tested by periodically comparing its results to a software implementation

Re: Linux-based wireless mesh suite adds crypto engine support

2004-10-04 Thread John Gilmore
- sufficient documentation and really transparent provable details so that users could trust and verify that the hardware and software were doing what they claimed to be doing and weren't doing anything evil that they didn't admit to, such as including backdoors or bad random number

Re: Linux-based wireless mesh suite adds crypto engine support

2004-10-04 Thread Bill Stewart
Peter Gutmann wrote: Tinfoil-hat mode. Agreed, but some people want to be thorough, or pedantic, or paranoid. At 04:20 AM 9/30/2004, Jonathan Thornburg wrote: UNDOCUMENTED_EVIL_WIRETAP_MODE can be just about impossible to spot without full design oversight. Even for a 3DES chip, where supposedly

Re: Linux-based wireless mesh suite adds crypto engine support

2004-09-30 Thread Jonathan Thornburg
On Mon, 27 Sep 2004, Bill Stewart wrote: [[about the Via crypto sets]] The hard part is trust - Cryptography Research did a study last year about the quality of the random number generator, and found that you get about 0.75 bits of entropy per output bit, or 0.99 if you do Von Neumann

Re: Linux-based wireless mesh suite adds crypto engine support

2004-09-29 Thread Bill Stewart
In the past, there have been two main problems with the Via crypto sets - availability of convenient software - sufficient documentation and really transparent provable details so that users could trust and verify that the hardware and software were doing what they claimed to be