摘要
为了解决现有的各种电子签章系统方案中对于数字签名信息保护不足的问题,提出了一种基于签密方法和认证水印技术的,具备指定接收者功能的电子签章技术。该技术使用了基于椭圆曲线的签密方法进行文档消息摘要值的签名和加密,使用信息隐藏能力较强的LSB算法将签密结果作为水印进行数字水印的提取和嵌入。分析结果表明,新方案大大提高了电子签章系统的安全性能,具有比较广泛的应用前景。
To solve the problem of insufficient protecting of the digital watermark message in the existing kinds of digital sealing systems, have proposed a digital sealing technique based on signcryption and authentication watermarking, which has function of appointed accepter. This technique use a signcryption based on elliptic curve to sign and encode the message digital, and choose LSB algorithm which has stronger information hiding ability to insert and extract the digital watermark, which is the result of signcryption. Result of analysis indicates that the new schemes greatly improved the security performance of digital sealing system, having widespread application prospect.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2009年第13期123-126,共4页
Journal of Wuhan University of Technology
基金
国家自然科学基金(50620130441)
关键词
数字水印
签密
电子签章
digital signature
signcryption
digital sealing
