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基于IBC的TLS握手协议设计与分析

彭长艳 张权 唐朝京   

  1. 国防科技大学电子科学与工程学院 国防科技大学电子科学与工程学院 国防科技大学电子科学与工程学院
  • 收稿日期:2008-09-16 修回日期:1900-01-01 发布日期:2009-03-01 出版日期:2009-03-01
  • 通讯作者: 彭长艳

Design and analysis of IBCbased TLS handshake protocol

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  • Received:2008-09-16 Revised:1900-01-01 Online:2009-03-01 Published:2009-03-01
  • Contact: Chang-Yan PENG

摘要: 为了克服当前广泛使用的传输层安全协议存在的证书管理复杂和握手延迟高的缺点,通过分析基于身份的密码体制的特点,设计了使用基于身份的加密方案的握手协议,以及适合双向认证条件的使用基于身份的认证的密钥协商方案的握手协议。安全性分析和性能仿真实验结果表明,在同等安全强度下,与基于证书的方案相比,基于IBC的握手协议具有相称的密码算法处理开销,但是减少了协议通信量,明显降低了握手延迟,提高了协议的运行效率。

关键词: 传输层安全, 握手协议, 基于身份密码学, 双线性对

Abstract: To overcome the disadvantages of complex certificate management and long handshake latency which exist in current widelyused Transport Layer Security (TLS) protocol, two improved handshake protocols using identitybased cryptography were designed. One protocol adopted identity-based encryption scheme, and the other used identity-based authenticated key agreement scheme fit for mutual authentication. Results of security analysis and performance simulation show that IBC-based protocol has commensurate cryptographic computation overhead compared with certificatebased scheme with equivalent security, but it decreases communication overhead, and has prominent superiority in handshake latency; therefore, the scheme achieves higher efficiency.

Key words: Transport Layer Security (TLS), handshake protocol, identity-based cryptography, bilinear pairing