Pretty Simple,pretty Good Privacy

摘要

The history of the encryption program known as Pretty Good Privacy (PGP) is long and, at times, annoyingly convoluted - from its creation by Philip Zimmermann in 1991, to corporate ownership of the technology, torncorporate buyouts and name changes, to legal battles with the feds and various changes in the underlying implementation (somernlikely due to licensing issues). If you have some time to kill, Wikipedia treats the topic thoroughly.rnAs for the current state of PGP, the news is good: An Internet standard (denned by RFC 2440) called OpenPGP has emerged. History aside, it is OpenPGP that I'm dealing with here as I offer a simple, command-oriented PGP implementation for the System i.