Journal
JOURNAL OF SUPERCOMPUTING
Volume 66, Issue 2, Pages 973-988Publisher
SPRINGER
DOI: 10.1007/s11227-013-0962-3
Keywords
Key agreement; Elliptic curve cryptosystem; Mobile environment; Authentication
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With the rapid development of electronic commerce transactions on mobile devices, achieving secure communications between communication parties is an important issue. The typical solutions are authenticated key agreement protocols, designed to efficiently implement secure channels for two or more parties communicating via a public network by providing them with a shared secret key, called a session key. In this paper, we propose two key agreement schemes based on elliptic curve cryptosystems suited for mobile environments. The first one is an identity-based remote mutual authentication with key agreement scheme, and it is used to establish a session key between the client and the server. In the second one, we extend the proposed two-party authentication key exchange scheme to develop an efficient three-party authenticated key agreement scheme for establishing a session key between two users with the help of a trusted server. Both our proposed schemes achieve efficiency, practicability, simplicity, and strong notions of security.
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