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Efficient and Short Identity-Based Deniable Authenticated Encryption

机译:高效且基于身份的简短可否认身份验证加密

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Deniable authentication is an important security requirement for many applications that require user privacy protection, since the sender can deny that he/she has signed the message. Considering the importance of communication efficiency, in this paper, we explore the novel deniable authenticated encryption, which outperforms the existing ones in terms of communication costs and ciphertext size. Our protocol meets all the security requirement of message confidentiality and deniable message authentication. Our protocol is based on identity cryptography and can avoid the public key certificates based public key infrastructure (PKI). Our protocol is provably secure in the random oracle model.
机译:对于许多需要用户隐私保护的应用程序,可拒绝身份验证是一项重要的安全要求,因为发件人可以拒绝他/她已经对邮件进行了签名。考虑到通信效率的重要性,在本文中,我们探索了新颖的可拒绝身份验证加密,该方法在通信成本和密文大小方面优于现有加密方法。我们的协议满足消息机密性和可拒绝的消息身份验证的所有安全性要求。我们的协议基于身份加密,可以避免基于公共密钥基础结构(PKI)的公共密钥证书。在随机预言模型中,我们的协议可证明是安全的。

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