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首页> 外文期刊>International journal of mobile computing and multimedia communications >Secure Broadcast with One-Time Signatures in Controller Area Networks
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Secure Broadcast with One-Time Signatures in Controller Area Networks

机译：控制器局域网中具有一次性签名的安全广播

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Broadcast authentication in Controller Area Networks (CAN) is subject to real time constraints that are hard to satisfy by expensive public key primitives. For this purpose the authors study here the use of one-time signatures which can be built on the most computationally efficient one-way functions. The authors use an enhancement of the classical Merkle signature as well as the more recently proposed HORS signature scheme. Notably, these two proposals offer different trade-offs, and they can be efficiently paired with time synchronization to reduce the overhead caused by the re-initialization of the public keys, which would otherwise require expensive authentication trees. The authors do outline clear bounds on the performance of such a solution and provide experimental results on development boards equipped with Freescale S12X, a commonly used automotive grade micro-controller. The authors also benefit from the acceleration offered by the XGATE co-processor available on S12X derivatives which significantly increases the computational performances.
机译：控制器局域网（CAN）中的广播身份验证受到实时约束，而这些约束是昂贵的公钥原语难以满足的。为此，作者在这里研究了一次性签名的使用，该签名可以建立在计算效率最高的单向函数上。作者使用了经典的Merkle签名以及最近提出的HORS签名方案的增强功能。值得注意的是，这两个提议提供了不同的权衡，并且它们可以与时间同步有效地配对，以减少由重新初始化公钥引起的开销，否则这将需要昂贵的身份验证树。作者确实概述了这种解决方案的性能界限，并在配备了Freescale S12X（一种常用的汽车级微控制器）的开发板上提供了实验结果。作者还受益于S12X衍生产品上可用的XGATE协处理器提供的加速功能，该功能大大提高了计算性能。

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