抗临时秘密指数泄露攻击的认证群密钥协商协议

Authenticated Group Key Agreement Protocol with Resistance to Leakage of Ephemeral Secret DH Exponents

摘要: 为克服大部分现有的认证群密钥协商(AGKA)协议的不足,基于双指数挑战-应答数字签名(DCR签名)和BD方案,提出了具有常数轮AGKA协议.该协议除具有相关AGKA协议的安全性外,还有抗临时秘密指数泄露攻击能力,效率也有所提高.
- 认证 /
- 群密钥协商协议 /
- 临时秘密指数泄露攻击 /
- 双指数挑战-应答数字签名 /
- BD方案
Abstract: A novel constant-round authenticated group key agreement(AGKA) protocol was proposed to overcome the weakness of the existing common AGKA protocols.The proposed protocol combines the dual exponential challenge-response(DCR) signature and BD structure.It can resist the leakage of ephemeral secret DH exponent attack while retaining the security of the relative AGKA protocols,and is more efficient in terms of both communication and computation.
- authentication /
- group key agreement protocol /
- leakage of ephemeral secret DH exponent attack /
- dual exponential challenge-response signature /
- BD structure

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