Firewall Wizards mailing list archives

Re Token based OTP SafeWord or SecurID?


From: offset <offset () privacyx com>
Date: Fri, 22 Sep 2000 16:15:10 -0500

I am not familiar with SafeWord, but I do know a bit about SecurID

SecurID uses a PIN, plus a PASSCODE that changes at small intervals
(1min, 2min).

If you are worried about network sniffing of PIN+PASSCODE, you can
purchase the cards where you type in your PIN directly on the SecurID
card and the SecurID card hashes the pin+passcode and sends this over
the network.

SecurID also has a "diress" (spelling?) mode.   If someone is holding a
gun to your head and "diress" mode is enabled, there is something the
user can do when logging in with SecurID that will allow the login, but
alert the security administrator that this login was accomplished under
"diress".

Rick Smith wrote:


--On Monday, September 18, 2000 11:30 AM -0500 kadokev () msg net wrote:

I just recently noticed that unlike SecurID, SafeWord has no provision to
use a PIN in combination with their key fob 'Safeword Silver 2000' token,
so they are out of the running.

I've been told that the SecurID PIN is essentially a reusable password,
consisting of digits, that's used in conjunction with the key fob. To log
in, you enter both the number on the fob and the reusable password.

The advantage is that attackers must work harder -- they must first
intercept a successful login to retrieve the reusable part and then steal
the fob to get the one time part. Furthermore, it involves less hardware
since the fob doesn't need a keypad.

On the other hand, it makes the PIN weaker since it can be sniffed. Does
anyone think this matters?

Disclaimer: I work for Secure Computing, which builds SafeWord. I want to
be sure I understand the relevant difference between the two.

Rick.
smith () securecomputing com         roseville, minnesota

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