Paper Info
Title
Certificateless and Identity based Authenticated Key Exchange Protocols.
Abstract
Designing efficient key agreement protocols is a fundamental cryptographic problem. In this paper, we first define a security model for key agreement in certificateless cryptography that is an extension of earlier models. We note that the existing pairing free protocols are not secure in our model. We design an efficient pairing-free, single round protocol that is secure in our model based on the hardness assumption of the Computational Diffie Hellman (CDH) problem. We also observe that previously existing pairing-free protocols were secure based on much stronger assumptions such as the hardness of the Gap Diffie Hellman problem. We use a restriction of our scheme to design an efficient pairing-free single round identity based key agreement protocol that is secure in the id-CK+ model based on the hardness assumption of the CDH problem. Additionally, both our schemes satisfy several other security properties such as forward secrecy, resistance to reflection attacks etc.
Year
DOI
Venue
2014
10.1007/978-3-319-25915-4_14
Communications in Computer and Information Science
Keywords
Field
DocType
Certificateless cryptography,Identity-based cryptography,Key exchange,Random oracle
Key exchange,Cryptography,Computer science,Authenticated Key Exchange,Knowledge management,Theoretical computer science,Forward secrecy,Certificateless cryptography,Key-agreement protocol,Diffie–Hellman key exchange,Diffie–Hellman problem
Conference
Volume
ISSN
Citations 
554
1865-0929
0
PageRank 
References 
Authors
0.34
3
2
Name
Order
Citations
PageRank
Saikrishna Badrinarayanan16311.17
C. Pandu Rangan21434149.57