基于多线程的AES-ECB改进设计与性能分析

Improved Design and Performance analysis of AES-ECB Based on Multithread Technology

摘要:

为了满足高速即时通信对密码运算的性能要求,在研究AES-ECB典型设计的基础上,提出了一种基于多线程技术的AES-ECB改进设计方案;通过对算法中间迭代过程进行分割,并将其例化为多个子线程,改进了算法运行流程,实现了子线程间的“类流水”操作;实例性能分析表明,相比于单线程,多线程性能提高了约0.46~4.27倍；当线程数为12时,算法处理性能最低为520 Mbps,适用于对加解密速度要求高的应用场合。

Abstract:

To satisfy needs of the cryptographic performance in high speed real-time communications, after researching the typical design of AES-ECB, an improved design of AES-ECB based on multithread technology is proposed. By dividing the intermediate iterative process into some sub threads, the running flow of AES-ECB is improved, and sub threads can be organized like pipelining. The performance analysis results show that the multithread design can increase about 0.46 to 4.27 times than the single-thread design in performance, and when the sub thread number is 12, the speed can achieve 520 Mbps at least, which is suitable for applications with high requirements on the en/decryption speed.