Identity-based cryptography: Difference between revisions

Revision as of 21:41, 29 August 2009

Revision as of 06:56, 30 August 2009

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'''Identity-based cryptography''' is a type of [[public-key cryptography]] in which the [[public key]] of a user is some unique information about the identity of the user (e.g. a user's email address). This can use the text-value of the name or ___domain name as a key or the physical IP address it translates to.

The first implementation of identity-based signatures and an email-address based PKI was developed by [[Adi Shamir]] in 1984<ref>Adi Shamir, [http://www.iseca.org/modules/mydownloads/visit.php?cid=56&lid=33 Identity-Based Cryptosystems and Signature Schemes]. ''Advances in Cryptology: Proceedings of CRYPTO 84, Lecture Notes in Computer Science'', 7:47--53, 1984</ref>, which allowed users to verify [[digital signatures]] using only public information such as the user's identifier.