Title :
A forward secure identity based encryption scheme with master key update
Author :
Yang, Peng ; Matsuura, Kanta
Author_Institution :
Univ. of Tokyo, Tokyo
Abstract :
We propose an identity based encryption scheme with forward security. Especially in our scheme, the top secret, called the master key, updates as time evolves. Our scheme is provably secure in the sense of FS-IND-ID-CPA based on DBDH assumption in standard model.
Keywords :
cryptography; DBDH assumption; FS-IND-ID-CPA; forward secure identity-based encryption scheme; master key update; Cryptography; Digital systems; Electronic mail; Identity-based encryption; Information security; Information theory; Public key; Stress;
Conference_Titel :
Information Theory and Its Applications, 2008. ISITA 2008. International Symposium on
Conference_Location :
Auckland
Print_ISBN :
978-1-4244-2068-1
Electronic_ISBN :
978-1-4244-2069-8
DOI :
10.1109/ISITA.2008.4895434
