| Classic Cryptography
IDEA, RC2 and RC4
Pretty Good Privacy
How public key works
|Basic Concepts in Data Encryption:
About the author
Philip R. Zimmermann, the renowned author of the PGP program, got into trouble for releasing this encryption program to the public. However, in 1996, two years after he was first charged, the US government dropped the charges against him. He joined CEBus right after college, but in 1980, quit his easy going consultant job to start a business with some friends, Metamorphic Systems.
Conception of idea
Merritts call to Metamorphic was actually a marketing gimmick. He was incredibly lucky. Zimmermann happened to have a boyhood interest in encryption. The two hit it off. Merritt turned out to be a natural in mathematics and Zimmermann not. For a long time Merritt taught Zimmerman about mathematics. Now it was time for Zimmermann to meet the Public Key. In the summer of 1986, Merritt and Zimmermann decided to meet. Merritt was to fly up to Boulder for a week to teach Zimmermann the details of doing multi-precision ( 0.00000 ) arithmetic on a computer. Zimmermann was thinking of writing an implementation of RSA on an IBM PC. Merritt also arranged for both of them to meet Jim Bidzos, the president of RSA, while there were problems with this meeting, well cover those in the legal section.
Briefly, Zimmermann claims that Bidzos offered a free license for RSA to him, and Bidzos says he didnt. Either way, Zimmermann didnt have a license, but made PGP Version 1.0 anyway. The story continues. Zimmermann gave a copy of PGP to a friend to evaluate, and he posted it on Usenet, a www for UNIX network. PGP was tossed to the wind. Bidzos was not happy. An agreement was signed that RSADSI would not sue Zimmermann if he discontinued distributing PGP. PGP became a main competitor with RSADSIs MailSafe program, not important to RSADSI by 1991, Bidzos was out to protect his patent, but PGP spread and spread and spread.
Copyright ©1999 ThinkQuest Team 27158 Developed for ThinkQuest 1999