Re: using white noise for cryptography

2003-03-14 Thread martin f krafft
also sprach sean finney <[EMAIL PROTECTED]> [2003.03.14.0100 +0100]: > > 1. is there already a package that enables this? > > not that i know of. check this out: http://www.linux.org/apps/AppId_674.html exactly what i wanted to do. oh how great is this... consider this a pre-ITP until i fin

Re: using white noise for cryptography

2003-03-14 Thread Frank Gevaerts
On Fri, Mar 14, 2003 at 09:23:38AM -0600, Kirk Strauser wrote: > At 2003-03-14T00:50:17Z, Henrique de Moraes Holschuh <[EMAIL PROTECTED]> writes: > > > And do _not_ overestimate the randomness of your noise. That will weaken > > your random generator a lot. > > I'm not sure I follow. How would a

Re: using white noise for cryptography

2003-03-14 Thread Kirk Strauser
At 2003-03-14T00:50:17Z, Henrique de Moraes Holschuh <[EMAIL PROTECTED]> writes: > And do _not_ overestimate the randomness of your noise. That will weaken > your random generator a lot. I'm not sure I follow. How would adding an entropy source weaken the system's randomness? Even if the audio

Re: using white noise for cryptography

2003-03-13 Thread Paul E Condon
On Thu, Mar 13, 2003 at 08:14:57PM -0500, Jason Healy wrote: > At 1047600013s since epoch (03/13/03 19:00:13 -0500 UTC), sean finney wrote: > > On Thu, Mar 13, 2003 at 11:43:54PM +0100, martin f krafft wrote: > > > 1. is there already a package that enables this? > > > > not that i know of. > >

Re: using white noise for cryptography

2003-03-13 Thread Jason Healy
At 1047600013s since epoch (03/13/03 19:00:13 -0500 UTC), sean finney wrote: > On Thu, Mar 13, 2003 at 11:43:54PM +0100, martin f krafft wrote: > > 1. is there already a package that enables this? > > not that i know of. While there isn't a package, there is a guy who is doing this on a compute

Re: using white noise for cryptography

2003-03-13 Thread John Griffiths
In this situation would a third party with a copy of the audio environment (say through bugging) be able to use that against the crypto? Henrique de Moraes Holschuh wrote: On Thu, 13 Mar 2003, sean finney wrote: 2. is there a way to inject bytes into the entropy pool of the linux kernel?

Re: using white noise for cryptography

2003-03-13 Thread Henrique de Moraes Holschuh
On Thu, 13 Mar 2003, sean finney wrote: > > 2. is there a way to inject bytes into the entropy pool of the > > linux kernel? If you're going to do it by sampling the noise in an audio card, you better analyze the output to check if it is indeed crypto-strong randomness. Your sampling modul

Re: using white noise for cryptography

2003-03-13 Thread sean finney
hey martin, On Thu, Mar 13, 2003 at 11:43:54PM +0100, martin f krafft wrote: > 1. is there already a package that enables this? not that i know of. > 2. is there a way to inject bytes into the entropy pool of the > linux kernel? yeah, at least as a module. don't know about from userla

using white noise for cryptography

2003-03-13 Thread martin f krafft
a friend of mine implanted this thought that won't let me loose no more. white noise (i.e. data from a random microphone) seems to be a good source of entropy. thus i am wondering whether that can be used as the basis for all the crypto going on on a system with such a mic attached. so i have a cou