Title :
Mediated Hierarchical Identity-Based Combined Public Key Schemes
Author :
Wang, Pingjian ; Lin, Jingqiang ; Jing, Jiwu ; Xie, Yongquan
Author_Institution :
State Key Lab. of Inf. Security, Grad. Univ. of Chinese Acad. of Sci., Beijing, China
Abstract :
This paper presents the mediated hierarchical identity-based combined public key (mHIB-CPK) scheme by applying the concept of mediated hierarchical identity-based encryption (mHIBE) [1] to identity-based combined public key (IB-CPK) [2], which is an identity-based encryption (IBE) [3] scheme compatible with ElGamal [4] and other algorithms based on discrete logarithm problem (on prime fields or elliptic curves, such as, [5], [6]). Besides the advantages from mHIBE (hierarchical key generation and efficient revocation) and IBCPK (compatible with popular public key algorithms), mHIBCPK prevents conspiracy attacks on IB-CPK [7], making it more practicable for large-scale users.
Keywords :
public key cryptography; ElGamal; discrete logarithm problem; efficient revocation; hierarchical key generation; identity-based combined public key; identity-based encryption scheme; mediated hierarchical identity-based combined public key schemes; mediated hierarchical identity-based encryption; popular public key algorithms; Elliptic curve cryptography; Elliptic curves; Identity-based encryption; Informatics; Information security; Information technology; Laboratories; Large-scale systems; Public key; Public key cryptography; Combined Public Key; Identity Based Encryption; Public Key Cryptography;
Conference_Titel :
Intelligent Information Technology and Security Informatics (IITSI), 2010 Third International Symposium on
Conference_Location :
Jinggangshan
Print_ISBN :
978-1-4244-6730-3
Electronic_ISBN :
978-1-4244-6743-3
DOI :
10.1109/IITSI.2010.20
