Abstract
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The trend in technology is such that small lightweight low-complexity devices, like PDAs, cell-phones, . . .,will become one of the more predominant computing platforms. Consequently, these devices will play an increasing role in e-commerce and m-commerce transactions. In the past, the role of the merchant has been played by workstations/servers, but due to advancements in wireless communications, like Bluetooth, we should expect more peer-to-peer e-commerce/m-commerce transactions and hence we should expect more lightweight devices playing the role of merchants. Here we develop secure efficient m-commerce protocol SSMCP*. This is a low-complexity protocol that is both efficient for mobile lightweight customers as well as mobile lightweight merchants. SSMCP* is both efficient in terms of bandwidth, eliminating any redundant information, as well as efficient in terms of rounds of communication. Further, SSMCP* addresses the important issue of a fair commitment to the transaction between the merchant and the customer.
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