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Fast authentication in wireless sensor networks
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DOI：10.1016/j.future.2014.07.006.png)
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Abstract
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Broadcast authentication is a fundamental security service in wireless sensor networks (WSNs). Although symmetric-key-based mu TESLA-like schemes were employed due to their energy efficiency, they all suffer from DoS attacks resulting from the nature of delayed message authentication. Recently, several public-key-based schemes were proposed to achieve immediate broadcast authentication that may significantly improve security strength. However, while the public-key-based schemes obviate the security vulnerability inherent to symmetric-key-based mu TESLA-like schemes, their signature verification is time-consuming. Thus, speeding up signature verification is a problem of considerable practical importance, especially in resource-constrained environments. This paper exploits the cooperation among sensor nodes to accelerate the signature verification of vBNN-IBS, a pairing-free identity-based signature with reduced signature size. We demonstrate through on extensive performance evaluation study that the accelerated vBNN-IBS achieves the longest network lifetime compared to both the traditional vBNN-IBS and the accelerated ECDSA schemes. The accelerated vBNN-IBS runs 66% faster than the traditional signature verification method. Results from theoretical analysis, simulation, and real-world experimentation on a MICAz platform are provided to validate our claims. (C) 2014 Elsevier B.V. All rights reserved.
Keywords:
Broadcast authentication
ID-based cryptography
Digital signature
Accelerated verification
Wireless sensor networks
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