## Cryptology ePrint Archive: Report 2009/600

Constructing Certificateless Encryption and ID-Based Encryption from ID-Based Key Agreement

D. Fiore and R. Gennaro and N.P. Smart

Abstract: We discuss the relationship between ID-based key agreement protocols, certificateless encryption and ID-based key encapsulation mechanisms. In particular we show how in some sense ID-based key agreement is a primitive from which all others can be derived. In doing so we focus on distinctions between what we term pure ID-based schemes and non-pure schemes, in various security models. We present security models for ID-based key agreement which do not look natural'' when considered as analogues of normal key agreement schemes, but which look more natural when considered in terms of the models used in certificateless encryption.

Category / Keywords: public-key cryptography /

Publication Info: Full version of the paper that will appear at Pairing 2010

Date: received 4 Dec 2009, last revised 30 Aug 2010

Contact author: nigel at cs bris ac uk,fiore@dmi unict it,rosario@us ibm com

Available format(s): PDF | BibTeX Citation

Short URL: ia.cr/2009/600

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