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OALib Journal期刊
ISSN: 2333-9721
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Universally Composable Group Key Exchange Protocol
通用可组合的组密钥交换协议

Keywords: Secure communication,Universally composable,Witness indistinguishable,Proof of knowledge,Common Reference String (CRS) model
保密通信
,通用可组合,证据不可区分,知识证明,公共参考串模型

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Abstract:

In this article, a universally composable group key exchange ideal function is proposed and realized using witness indistinguishable proof of knowledge with partially isolated party based on the tamper-proof hardware token. Compared with protocols under the CRS model, the group key exchange protocol can greatly reduce the risk of putting all trusts in one place. The protocol is proved to be AKE secure and resistant to the attacks of adaptive adversaries and malicious insiders.

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