signature=d70b98a81a5cafc42dd2d4a825cb052e,Cryptanalysis and improvement of a directed digital signa...

汪国

于 2021-05-30 08:18:30 发布

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文章标签： signature=d70b98a81a5cafc42dd2d4a825cb052e

文章提出了一个改进的非交互式公开密钥分布系统，并基于Maurer和Yacobi方案提出相关应用，包括一种仅使用签名者身份验证的定向数字签名方案。然而，原始方案无法防止伪造攻击，任何用户都能伪造签名并冒充他人。本文提出了一种安全的非交互式公开密钥定向数字签名方案，旨在解决这一问题。

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摘要：

Tseng et al. modified a non-interactive public-key distribution system and also proposed several relevant applications based on the Maurer and Yacobi scheme. One of these applications is a directed digital signature scheme, which only uses a signer's identity to verify the signature. No pair of users can either interact with each other, or access the public files of the system. However, their scheme cannot prevent a forgery attack.Any user can forge a signature to get any message successfully and declare that it is generated by other users. In this paper, a securer directed digital signature scheme operated by using a non-interactive public-key is proposed.

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