On Dec 30, 2007 11:59 AM, Tom Piwowar <[EMAIL PROTECTED]> wrote: > >These are not randomizers. They wouldn't do any good if they created > random > >digits. What they do is create the same set of digits on your device > that > >they do at the site that verifies the digits you enter. > > These are pseudo-randomizers. They use an algorithm to produce digits > that appear random. So if you start multople devices with the same seed > number they will all produce the same sequence of pseudo-random numbers. > > So you have your pseudo-random number generator and there is one at the > other end that is is sync with yours. Then I get mine and tweak it until > mine is also in sync with yours. >
I guess that is technically correct. All encryption algorithms are technically pseudo-randomizers, because a good encryption algorithm results in pseudo-random numbers with no relation to the original content. Doesn't mean they are easy to crack. You can Google on how long it would take to crack it if it were using a 256-bit key to encrypt with. -- John DeCarlo, My Views Are My Own ************************************************************************ * ==> QUICK LIST-COMMAND REFERENCE - Put the following commands in <== * ==> the body of an email & send 'em to: [EMAIL PROTECTED] <== * Join the list: SUBSCRIBE COMPUTERGUYS-L Your Name * Too much mail? Try Daily Digests command: SET COMPUTERGUYS-L DIGEST * Tired of the List? Unsubscribe command: SIGNOFF COMPUTERGUYS-L * New address? From OLD address send: CHANGE COMPUTERGUYS-L YourNewAddress * Need more help? Send mail to: [EMAIL PROTECTED] ************************************************************************ * List archive from 1/1/2000 is on the MARC http://marc.info/?l=computerguys-l * List archive at www.mail-archive.com/[email protected]/ * RSS at www.mail-archive.com/[email protected]/maillist.xml * Messages bearing the header "X-No-Archive: yes" will not be archived ************************************************************************
