摘要: 针对现有的代理签名仅能提供授权的认证而不能提供保密性的弱点,提出了一种有效的代理多重签密方案。该方案具有如下特点:原始签名人与代理签密人之间不必使用安全信道;只有指定的接收者能验证代理签密的有效性;当代理签名人否认签密时,接收者可单独将代理签密转换为一般的代理签名。
关键词:
密码学,
代理签密,
不可否认性,
公开验证
Abstract: Most previous proxy signatures only provide the delegated authenticity and don’t provide the confidentiality. An efficient proxy multi-signcryption scheme is presented. The proposed scheme has the following properties: Original signer and proxy signer don’t use secure channel; Only the specified recipient can check the validity of the proxy signcryption; When the proxy signer repudiates the signcryption, the recipient can convert this proxy signcryption into an ordinary proxy signature alone.
Key words:
Cryptography,
Proxy signcryption,
Nonrepudiable,
Public verifiability
甘元驹;谢仕义;付东洋;郑小平. 不可否认的可公开验证的代理多重签密方案[J]. 计算机工程, 2007, 33(02): 130-132.
GAN Yuanju; XIE Shiyi; FU Dongyang; ZHENG Xiaoping. Nonrepudiable Proxy Multi-Signcryption Scheme with Public Verifiability[J]. Computer Engineering, 2007, 33(02): 130-132.