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首页> 外文会议>8th International Conference on the Theory and Application of Cryptology and Information Security, Dec 1-5, 2002, Queenstown, New Zealand >Secure Channels Based on Authenticated Encryption Schemes: A Simple Characterization
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Secure Channels Based on Authenticated Encryption Schemes: A Simple Characterization

机译：基于身份验证的加密方案的安全通道：一个简单的特征

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摘要

We consider communication sessions in which a pair of parties begin by running an authenticated key-exchange protocol to obtain a shared session key, and then secure successive data transmissions between them via an authenticated encryption scheme based on the session key. We show that such a communication session meets the notion of a secure channel protocol proposed by Canetti and Krawczyk if and only if the underlying authenticated encryption scheme meets two new, simple definitions of security that we introduce, and the key-exchange protocol is secure. In other words, we reduce the secure channel requirements of Canetti and Krawczyk to easier to use, stand-alone security requirements on the underlying authenticated encryption scheme. In addition, we relate the two new notions to existing security notions for authenticated encryption schemes.
机译：我们考虑通信会话，其中一对参与者通过运行经过身份验证的密钥交换协议来获取共享的会话密钥，然后通过基于会话密钥的经过身份验证的加密方案来保护它们之间的连续数据传输。我们证明，仅当基础身份验证的加密方案满足我们引入的两个新的简单安全定义并且密钥交换协议是安全的时，此类通信会话才能满足Canetti和Krawczyk提出的安全通道协议的概念。换句话说，我们将Canetti和Krawczyk的安全通道要求降低为对基础身份验证的加密方案更易于使用的独立安全要求。此外，我们将这两个新概念与用于身份验证加密方案的现有安全概念相关联。

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