基于椭圆曲线的高效前向签密方案的密码学分析
Cryptanalysis of an Efficient Signcryption Scheme with Forward Secrecy Based on Elliptic Curve
摘要：
签密是一种相对较新的密码技术，其目的是在单个逻辑步骤中实现加密和数字签名的功能。多年来提出了几个签密方案，每个方案都有自己的问题和局限性。本文研究了最近的一个签密方案，即Hwang等人提出的方案的安全性。的方案进行了分析，证明了该方案存在若干安全缺陷和不足。几个破坏性的攻击也被引入到所提到的方案，从而它失败的所有期望的和必要的安全属性的签密方案。
英文摘要：
The signcryption is a relatively new cryptographic technique that is supposed to fulfill the functionalities of encryption and digital signature in a single logical step. Several signcryption schemes are proposed throughout the years, each of them having its own problems and limitations. In this paper, the security of a recent signcryption scheme, i.e. Hwang et al.'s scheme is analyzed, and it is proved that it involves several security flaws and shortcomings. Several devastating attacks are also introduced to the mentioned scheme whereby it fails all the desired and essential security attributes of a signcryption scheme.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
