On Thu, 3 Feb 2005, Daniel Carrera wrote: [...]
how can a one-time pad be useful?
[..]
Sorry. One time pad can also have some very specific meanings within cryptography meaning a one time pad of encryption keys. I was thinking more along the lines of single use passwords, which is common.
A one time pad is useful in situations where the password can or is intercepted. Kerberos tickets use this principle, IIRC, though not actual Kerberos passwords unless you front end it to S/Key or something similar.
One example is:
"RFC 1760 - The S/KEY One-Time Password System"
http://www.faqs.org/rfcs/rfc1760.htmlWith single use passwords, a key stroke logger would do no harm as it would only capture a password which has already been used.
-Lars
Lars Nooden ([EMAIL PROTECTED])
The Internet is for Everyone:
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