MixColumn round transformation Optimization and Improvement in the AES Algorithm
Jing Fan · Microcomputer Information · 2009
AES has been widely used in DES with high safety performance.For improving the speed of encryption and decode of AES.In the first,make an introduction of core algorithm AES,and preset a method of calling xtime subprogram and mod m(x) computing.At last,it makes great optimization of MixColumn round transformation of AES round transformation process.Based on OpenSSL testing,the results shows that the Improvement AES algorithm is faster than the original method in the timeliness of respect.