Abstract: How to optimize AES-128, SHA-256, SHA-512 and Whirlpool algorithms on Loongson-2E is discussed The corresponding optimize techniques are raised for the four algorithms, and the optimized results are analyzed The programs are, to the best knowledge, the fastest implementations on Loongson-2E This paper also proposed several new instructions for speedup symmetric primitives and a parallel hash function mode

Key words: Loongson-2E, Hash function, symmetric primitives, SHA, AES, fast implementation

摘要： 选择AES-128，SHA-256，SHA-512和Whirlpool4个目前应用最为广泛的对称算法进行优化。首次讨论了如何在龙芯2E通用处理器上优化对称密码算法。针对每种算法提出了具体的优化技术，并对优化后的结果进行了分析。优化后所获得的性能是目前已知的龙芯处理器上的最好结果。针对对称密码算法，给出了龙芯2E新指令扩展的建议和一个新的并行Hash函数模式。

关键词: 龙芯2E, Hash函数, 对称密码算法, SHA, AES, 快速实现