Optimization and benchmark of cryptographic algorithms on network processors

With the increasing needs of security, cryptographic functions have been exploited in network devices. Besides time consuming, security protocols are flexible in algorithm selections. Fortunately, network processors, which serve as the backbone of intelligent network devices, hold performance and flexibility at the same time. In this article, we investigate several principles that can be used with implementing and optimizing cryptographic algorithms on network processors. Also, these principles are applied in real life algorithms, including stream ciphers, block ciphers and digital signatures. Related experiments and benchmark results on Intel IXP1200 network processor are provided.