PGP was created by Philip Zimmermann, first released in 1991, and used public-key and conventional encryption to protect electronic mail and data files.

Format Online paper / PDF

"PGP was created by Philip Zimmermann, first released in 1991, and used public-key and conventional encryption to protect electronic mail and data files."

PGP put strong encryption and digital signatures into software ordinary computer users could use for messages and files.

Source title RFC 1991: PGP Message Exchange Formats

Source authors D. Atkins; W. Stallings; P. Zimmermann

Source year 1996

Confidence high

Importance high