The subfield of cryptography in which all information used to encode a message is assumed to be publicly available.

A form of cryptography which allows users to communicate securely without previously agreeing on a shared secret key (abbreviation PKC)

An electronic voice-amplification apparatus, usually containing a set of two loudspeakers and a central control unit, used for singing, giving a speech, play-by-play commentary at events, or broadcasting in public areas like in airports, stations, stations.

(idiomatic) A generic individual; some hypothetical average or ordinary citizen.

(computing) A certificate that uses a digital signature to bind together a public key with an identity — used to verify that a public key belongs to an individual.

A segment of the PEG (short for public, educational, and government access) television model of local cable television production. It provides training and access to media production technology and distribution methods so that community producers and viewers may participate.

plural of public key certificate

An accountant who has met certain legal requirements to provide certain accounting services.

plural of public-private partnership

plural of certified public accountant