Computer Science – Cryptography and Security
Scientific paper
2010-02-17
Proceedings of the 11th IEEE International Conference on Communication Systems (IEEE ICCS'08), pp.162-166, Guangzhou, China, N
Computer Science
Cryptography and Security
6 Pages, 6 Figures
Scientific paper
10.1109/ICCS.2008.4737164
The non-repudiation as an essential requirement of many applications can be provided by the asymmetric key model. With the evolution of new applications such as mobile commerce, it is essential to provide secure and efficient solutions for the mobile environments. The traditional public key cryptography involves huge computational costs and is not so suitable for the resource-constrained platforms. The elliptic curve-based approaches as the newer solutions require certain considerations that are not taken into account in the traditional public key infrastructures. The main contribution of this paper is to introduce a Lightweight Public Key Infrastructure (LPKI) for the constrained platforms such as mobile phones. It takes advantages of elliptic curve cryptography and signcryption to decrease the computational costs and communication overheads, and adapting to the constraints. All the computational costs of required validations can be eliminated from end-entities by introduction of a validation authority to the introduced infrastructure and delegating validations to such a component. LPKI is so suitable for mobile environments and for applications such as mobile commerce where the security is the great concern.
Beheshti A. A.
Toorani M.
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