Tom Wu's Home Page
Security/Cryptography
- SRP - Secure Remote Password Authentication
- SRP is a strong password authentication protocol that can be
used to set up a secure communications session when the two sides
initially share only a weak, human-memorizable password.
Sample software, including secure Telnet and FTP applications, can be
downloaded, and you can view my technical paper, which has been
published and presented in the 1998 ISOC NDSS Symposium.
- jsbn - BigIntegers and RSA in JavaScript
- A pure JavaScript implementation of large-integer math,
capable of performing useful-sized (512-bit, 1024-bit) RSA
encryption in almost any Web browser.
Number Theory
- GRU Primality Proofs
- GRUs, or "Generalized Repunits", are numbers of the form
(bn-1)/(b-1), where b and n are both integers and
b>2 and n>2. Several of my proofs are featured in the
Prime Pages' Top-20 list of GRU primes.
Resume/Portfolio
- My Resume
- Self-explanatory
Other stuff
The Coin Page
- Find out how to find
doubled-die 1995 Linoln cents
and other information for amateur coin collectors.

tjw@cs.Stanford.EDU