It is a proprietary algorithm, patented by RSA Security.

I suspect RSA Security (or did they shorten the name) are being coy perhaps in part because they don't have all the answers yet.

Ron Rivest, 1969: founder of RSA Security and technology guru.

RC4 was created by Ron Rivest of RSA Security in 1987.

The company was sold in 2005 to RSA Security for $145,000,000, making Bennett a multi-millionaire in the process.

He is currently working for RSA Security in Bangalore, India.

Given the additional cost of generating strong primes RSA Security do not currently recommend their use in key generation.

RSA-150 has 150 decimal digits (496 bits), and was withdrawn from the challenge by RSA Security.

A cash prize of US$20,000 was offered by RSA Security for a successful factorization.

This was developed by Cisco, Microsoft, and RSA Security.