摘要
ECMLR签密方案是指基于椭圆曲线的具有消息链接恢复的签密方案,该方案采用递推的方式构造消息分块的签名,把前一个参数作为后一个参数的输入,这样恢复消息时只需要进行递推的运算就可以一个一个地恢复全部消息了,从而大大地减少了通信运输量。但是通过分析可以发现,该方案的安全性必须建立在消息密钥的互异上,通过研究,对其进行了改进,并给出了证明。
ECMLR is a sincryption scheme with message recovery and message linkage recovery based on the elliptic curve crypto system.The message＇s block is constructed in recursive mode,taking the present parameter as the input of the next parameter.By doing this,the whole message can be recovered recursively one by one. And the communicate traffic is reduced significantly.But in the research,it is found that this scheme＇s security is based on the different message key.So an improvement is given with proof.
出处
《计算机系统应用》
2010年第3期53-55,共3页
Computer Systems & Applications
关键词
数字签名
数字签密
消息链接恢复
ECMLR
digital signature
digital singcryption
message linkage recovery
ECMLR
