PGP: Source Code and Internals

This book contains all of the C source code to a software package called PGP I’m writing some of this preface in the air between Bucharest and Budapest, on a speaking tour about privacy in the information age. In Bucharest, I saw the terrible legacy of a system designed by men who craved certainty, not trusting the people with individual freedom. Those men would have loved the Clipper chip. The people there now are glad to have their freedom, and they understand my concern about the power of Government. They already get it — and they don’t understand why we Americans don’t. Philip R. Zimmermann Boulder, Colorado December 1994 PGP (Pretty Good Privacy) is a computer program for the encryption of data and electronic mail, a powerful "envelope" that allows individuals the same privacy in their communications as enjoyed by governments and large corporations. PGP, which is freely available on the Internet, uses public-key cryptography - specifically the RSA algorithm, which is particularly well-suited to the needs of computer-mediated communications. This book contains a formatted vesion of the complete source code for the latest release (2.6.2) of PGP.