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Progressive Verification: The Case of Message Authentication

机译:渐进验证:消息验证的情况

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摘要

We introduce the concept of progressive verification for cryptographic primitives like message authentication codes, signatures and identification. This principle overcomes the traditional property that the verifier remains oblivious about the validity of the verified instance until the full verification procedure is completed. Progressive verification basically says that the more work the verifier invests, the better can the verifier approximate the decision. In this work we focus on message authentication. We present a comprehensive formal framework and describe several constructions of such message authentication codes, called pv-MACs (for progressively verifiable MACs). We briefly discuss implications to other areas like signatures and identification but leave it as an open problem to find satisfactory solutions for these primitives.
机译:我们介绍了对加密原语(例如消息身份验证代码,签名和标识)进行渐进验证的概念。该原理克服了传统的属性,即在完成完整的验证过程之前,验证者对被验证实例的有效性仍然不了解。渐进式验证基本上说,验证者投入的工作越多,验证者可以更好地估计决策。在这项工作中,我们专注于消息身份验证。我们提出了一个全面的正式框架,并描述了称为pv-MAC(用于可逐步验证的MAC)的这种消息认证代码的几种构造。我们简要讨论了对其他领域的影响,例如签名和标识,但将其作为一个开放的问题来寻找这些原语的令人满意的解决方案。

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