[118234] in Cypherpunks
640 bit key allegedly cracked
daemon@ATHENA.MIT.EDU (Adam Shostack)
Wed Sep 22 13:46:50 1999
Date: Wed, 22 Sep 1999 13:09:49 -0400
From: Adam Shostack <adam@homeport.org>
To: Cypherpunks Mailing List <cypherpunks@cyberpass.net>
Message-ID: <19990922130948.A4546@weathership.homeport.org>
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Reply-To: Adam Shostack <adam@homeport.org>
From http://www.pele.org/smartcard.htm
About RSA 640 public key :
This is the bank public key that proof that the smart card is issued
by the bank.
It is used to check the digital signature of the smart card.
He used the latest methods and research in factoring huge numbers in
prime factors.
He discovered that the public key (the product N =PxQ, where P and Q
are 2 large prime numbers) has some special properties that he
intended to use.
And he did it successfully by setting up specifically special
softwares and introduced probabilities.
It didn't take him much time to found that numbers, it took him more
time to get the hardware (even sold publicly) and spying the
electronic
point of sale terminal.
--
"It is seldom that liberty of any kind is lost all at once."
-Hume
