产品防伪中伪随机数的应用技术研究

Application technology research on pseudo-random numbers in product anti-fake

通过研究几种常用伪随机数生成算法的实现原理,在对其实验数据概率分布和周期性等进行深入分析的基础上,针对现有伪随机数算法冗余度较高和复杂度不够且被预测可能性较大的问题,提出一种基于二次种子的新改良算法。该算法结合伪随机数产生方法与二次性思想,生产出的伪随机数简单且有效的克服先前算法在冗余度和复杂度上的不足,并且充分满足了产品防伪的要求。通过一个产生服装防伪吊牌的比较性实验,表明了利用二次种子伪随机数算法在防伪领域的可行性与优越性。

Based on research for the principle of several pseudo-random number generation algorithms and in-depth analysis to its probability distribution and the periodicity in the foundation, a new improved algorithm is presented based on two-time seed to solve the problem of high redundancy and forecast easiness induced by low complexity in others. It incorporate two-time thought into the generation process of pseudo-random numbers, compensating the disadvantage in other algorithms and generated result from which is simple and effective, and meet the requirement of product anti-fake, Finally, a comparative experiment for generating anti-fake hangtag is made to verify the feasibility and superiority of the two-time seed pseudo random number algorithm in anti-fake domain.