基于伪随机码生成器的数字产品加密研究

Application of pseudo-random code generator in copyright protection of digital products

阐述了随机序列在数字产品产权保护措施中的作用,并对随机序列生成器底层逻辑进行了研究;对线性同余发生器存在的缺陷进行了改进,设计了一种新的随机序列发生器,对改进前后发生器进行参数检验、均匀性检验等随机性进行测试,结果表明,改进后的随机序列发生器有较好的随机性和独立性.

The role of pseudo-random code generator in the copyright protection of digital products is elaborated,and the underlying logic of the generator is studied.A new random sequence generator is designed by the improvement of linear congruence generator’s shortcomings.The test results of the randomness of the improved and original generators such as parametric test and homogeneity test show that,the improved random sequence generator has better randomness and independence.