Science and Development Network (SciDev.Net)
In this paper, the author present Common Public Key Cryptography for SMS security. An SMS has two discussions. At the first, an SMS should be monitored by adapted agency or government because it can be abused to crime. Next the SMS increases a double charge in occurrence of communication. For these reasons, their scheme has been designed to fully satisfy the issues. They employed SMS gateways as a trusted third party in their scheme. The SMS gateways fulfill mediator between two users and surveillant. In order to avoid doubled-charge, the scheme uses a common public key rather than personal public key used in PKI. Accordingly, the designed scheme makes users communicate efficiently without sharing or exchanging their unique keys.