%A HE Dinghua %T Keygen Based on CPU Serial Number and Encryption Technique %0 Journal Article %D 2012 %J Science & Technology Review %R 10.3981/j.issn.1000-7857.2012.02.005 %P 36-38 %V 30 %N 2 %U {http://www.kjdb.org/CN/abstract/article_8802.shtml} %8 2012-01-18 %X The keygen is a software used to generate a registration code. In this paper, the serial number of CPU is used to construct the keygen. In order to improve the security level, in this paper, the serial number of CPU is encrypted, with its characters in different locations being encrypted by different algorithms. A keygen based on CPU serial number and encryption technique is given to show the effectiveness of the method.