【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。更多还原

【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.更多还原