Learn More
A multiserver architecture consisting of multiple servers provides resources and services for clients by way of open channels. Thus, a cryptographic protocol should be offered to ensure the legitimacy of both clients and servers, and to provide communication confidentiality. In the past, a large number of ID-based mutual authentication and key agreement(More)
Up to now, there was very little work on studying the revocation problem in existing hierarchical ID-based encryption (HIBE) systems. Certainly, all existing HIBE systems may inherit the revocation method suggested by Boneh and Franklin to revoke illegal or expired users, in which non-revoked users must periodically update their private keys using secure(More)
Revocation problem is a critical issue for key management of public key systems. Any certificate-based or identity (ID)-based public key systems must provide a revocation method to revoke misbehaving/compromised users from the public key systems. In the past, there was little work on studying the revocation problem of ID-based public key systems. Most(More)
Signature scheme is one of important primitives in modern cryptography, which may offer functionalities of user identification, non-repudiation, and message authentication. With the advent of identity (ID)-based public key system (IDPKS) with bilinear pairings, many cryptographic schemes and protocols based on the IDPKS system have been proposed. Though the(More)