Added to Favorites

Computing Dictionary

(PKE, Or "public-key cryptography") An encryption scheme, introduced by Diffie and Hellman in 1976, where each person gets a pair of keys, called the public key and the private key. Each person's public key is published while the private key is kept secret. Messages are encrypted using the intended recipient's public key and can only be decrypted using his private key. This is often used in conjunction with a digital signature.

The need for sender and receiver to share secret information (keys) via some secure channel is eliminated: all communications involve only public keys, and no private key is ever transmitted or shared.

Public-key encryption can be used for authentication, confidentiality, integrity and non-repudiation.

RSA encryption is an example of a public-key cryptosystem.

alt.security FAQ (http://cis.ohio-state.edu/hypertext/faq/bngusenet/alt/security/top.html).

See also knapsack problem.

(1995-03-27)

Explore Dictionary.com

Previous Definition: public-key cryptography standards

Next Definition: public-law

Words Near: public-key encryption

More from Thesaurus.com

Synonyms and Antonyms for public-key encryption

More from Reference.com

Search for articles containing public-key encryption

More from Dictionary.com Translator

Translate public-key encryption into French

Translate public-key encryption into German

Translate public-key encryption into Italian

Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Nearby Words

Copyright © 2014 Dictionary.com, LLC. All rights reserved.