机构地区: 佛山科学技术学院电子与信息工程学院计算机系
出 处: 《中山大学学报(自然科学版)》 2007年第6期44-47,共4页
摘 要: 针对web环境下存在对电子公文、电子图片的恶意伪造和删改等现象,需要对电子公文信息内容的正确性加以验证也即防伪,提出一种方便可行的基于全文特征抽取的算法。该算法抽取电子公文的各种特征值,生成特征值验证码对电子公文进行加密与防伪。实践证明,采用这种技术对一般的电子公文真伪处理可在2s内完成,其防伪出错率在百万分之一。 In the web environment, there is a novel algorithm of electronic documents falsification, which uses the document whole characteristics getting to certify the reliability of the information. To avoid malicious attacks, the algorithm extracts various statistic characteristics of the document, and utilizes the characteristics getting for security and falsification. The results show that the method can differentiate all kinds of electronic documents truthfulness.