Overview#

OpenPGP is the most widely used email encryption standard.

OpenPGP is defined by the OpenPGP Working Group of the Internet Engineering Task Force (IETF) as a Proposed Standard in RFC 4880.

OpenPGP was originally derived from the Pretty Good Privacy (PGP).

More Information#

There might be more information for this subject on one of the following:

• Hybrid cryptosystem
• RFC 4880
• Web of Trust
• Yubico
• Yubikey NEO