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Definition: OpenPGP


(OPENPretty Good Privacy) A data encryption protocol as defined by IETF RFC 2440. It is the open version of PGP and uses a "web of trust" rather than official, centralized certificate authorities (CAs). OpenPGP lets anyone sign anyone else's public key. For more information, visit www.openpgp.org. See PGP and web of trust.