PGP (Pretty Good Privacy) ver 2.1 - RSA public-key encryption freeware
for MSDOS, protects E-mail.  Lets you communicate securely with people 
you've never met, with no secure channels needed for prior exchange of 
keys.  Well featured and fast!  Excellent user documentation.

PGP has sophisticated key management, an RSA/conventional hybrid 
encryption scheme, message digests for digital signatures, data
compression before encryption, and good ergonomic design.  Source
code is free.

Filenames:  pgp21.zip (executable and manuals), pgp21src.zip (sources)
Keywords:   PGP, Pretty Good Privacy, RSA, public key, encryption,
            privacy, authentication, signatures, email