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Proactive secret sharing for long lived MANETs using Elliptic Curve Cryptography

机译:使用椭圆曲线密码技术为长寿MANET主动进行秘密共享

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Since MANETs are infrastructure-less, they heavily use secret sharing techniques to distribute and decentralize the role of a trusted third party, where the MANET secret s is shared among the legitimate nodes using (t, n) threshold secret sharing scheme. For long lived MANETs, the shared secret is periodically updated without changing the MANET secret based on proactive secret sharing using Elliptic Curve Cryptography(ECC). Hence, the adversary trying to learn the secret, needs to gain at-least t partial shares in the same time period. If the time period and the threshold value t are selected properly, proactive verifiable secret sharing can maintain the overall security of the information in long lived MANETs. The conventional cryptographic algorithms are heavy weight, require lot of computation power thus consuming lot of resources. In our proposal we used Elliptic Curve Cryptography to verify commitments as it requires smaller keys compared to existing proactive secret sharing techniques and makes it useful for MANETs, Which are formed of resource constraint devices.
机译:由于MANET的基础设施较少,因此它们大量使用秘密共享技术来分发和分散受信任的第三方的角色,其中MANET秘密使用(t,n)门限秘密共享方案在合法节点之间共享。对于寿命长的MANET,基于使用椭圆曲线密码术(ECC)的主动秘密共享,可以在不更改MANET秘密的情况下定期更新共享秘密。因此,试图学习秘密的对手需要在同一时间段至少获得t部分份额。如果正确选择了时间段和阈值t,则主动可验证的秘密共享可以维持寿命长的MANET中信息的整体安全性。常规的密码算法很重,需要大量的计算能力,从而消耗大量的资源。在我们的提案中,我们使用椭圆曲线密码术来验证承诺,因为与现有的主动机密共享技术相比,它需要更小的密钥,并使其对由资源约束设备组成的MANET有用。

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