What is MacPGP?

Pretty Good(TM) Privacy (PGP), from Phil's Pretty Good Software, is a high security cryptographic software application originally for MSDOS but ported to a wide variety of platforms including Unix, VAX/VMS, most popular personal computers, and others.  PGP allows people to exchange files or messages with privacy, authentication, and convenience.  Privacy means that only those intended to receive a message can read it. Authentication means that messages that appear to be from a particular person can only have originated from that person.  Convenience means that privacy and authentication are provided without the hassles of managing keys associated with conventional cryptographic software.  No secure channels are needed to exchange keys between users, which makes PGP much easier to use.  This is because PGP is based on a powerful new technology called "public key" cryptography.

PGP combines the convenience of the Rivest-Shamir-Adleman (RSA) public key cryptosystem with the speed of conventional cryptography, message digests for digital signatures, data compression before encryption, good ergonomic design, and sophisticated key management. And PGP performs the public-key functions faster than most other software imple

Download MacPGP for Mac

Architecture

68K + PPC (FAT)

Compatibility notes

Emulating this? It could probably run under: Basilisk II