Mobility Investigate

Computationally Efficient PKI-Based Single Sign-On Protocol PKASSO for Mobile Devices

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Executive Summary

In an attempt to expand Public Key Infrastructure (PKI) usage to a ubiquitous and mobile computing environment, the authors found that the deployment of the PKI on a resource-constrained device such as an 8-bit microprocessor leads to user-obstructive latency or additional circuitry for the operations. To alleviate these limitations, they propose a new PKI-based authentication protocol and security infrastructure, namely, PKASSO, which is enhanced with the single sign-on and delegation technology that is used especially for mobile devices with restricted computation power. PKASSO offloads complex PKI operations from the mobile devices to the infrastructure so as to keep the hardware and software complexity of the devices as low as possible.

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