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A novel deniable authentication protocol using generalized ElGamal signature scheme

机译:一种使用广义ElGamal签名方案的可拒绝身份验证协议

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摘要

A deniable authentication protocol enables a receiver to identify the true source of a given message, but not to prove the identity of the sender to a third party. This property is very useful for providing secure negotiation over the Internet. Consequently, many interactive and non-interactive deniable authentication protocols have been proposed. However, the interactive manner makes deniable protocols inefficient. In addition, a security hole is generated in deniable protocols that use the non-interactive manner if a session secret is compromised. Thus, there is no secure and efficient deniable authentication protocol as of now. In this paper, a new protocol based on the non-interactive manner is proposed to efficiently and securely achieve deniable authentication. This protocol can furthermore replace the underlying signature scheme in order to retain a secure status even if the previously used signature method is broken. (c) 2006 Elsevier Inc. All rights reserved.
机译:可通过身份验证的协议使接收方可以识别给定消息的真实来源,但不能向第三方证明发送方的身份。此属性对于通过Internet提供安全的协商非常有用。因此,已经提出了许多交互式和非交互式可拒绝认证协议。但是,交互方式使可拒绝的协议效率低下。此外,如果会话机密受到威胁,则会在使用非交互方式的可拒绝协议中生成安全漏洞。因此,到目前为止,还没有安全有效的可拒绝身份验证协议。本文提出了一种基于非交互方式的新协议,以有效,安全地实现可否认的身份验证。该协议还可以替换基础签名方案,以便即使先前使用的签名方法被破坏也可以保持安全状态。 (c)2006 Elsevier Inc.保留所有权利。

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