计算机科学 ›› 2011, Vol. 38 ›› Issue (2): 106-109.
• 计算机网络与信息安全 • 上一篇 下一篇
王青龙，张少博
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基金资助:
WANG Qing-long,ZHANG Shao-bo
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摘要： 提出一种新的k-resilient公钥叛逆者追踪方案。方案的追踪方式为公开黑盒追踪。假设DDH问题为困难问题，则方案能被证明是自适应选择密文攻击安全的，并且在撤销不超过k个叛逆者条件下仍然是自适应选择密文攻击安全的。与同类方案相比，该方案没有使用一次性消息认证码假设，并且有效降低了追踪时的计算复杂性。另外，方案满足非对称性。
关键词: 叛逆者追踪，广播加密，消息认证码，可证明安全性，非对称性
Abstract: A new k-resilient publi}key traitor tracing scheme was proposed. A traitor in this scheme can be traced by the way of public black-box tracing mean. Meanwhile, our scheme is provably secure against adaptive chosen ciphertext attack assume that DDH problem is difficulty. Our scheme remains CCA2-secure when not more than k traitors arc reyoked. Compared with similar schemes,our scheme does not use one-time message authentication code assumption and reduces the tracing complexity greatly. Further, our scheme satisfies asymmetry.
Key words: Traitor tracing, Broadcast encryption, MAC, Provable security, Asymmetry
王青龙，张少博. 公开追踪和CCA2安全的叛逆者追踪方案[J]. 计算机科学, 2011, 38(2): 106-109. https://doi.org/
WANG Qing-long,ZHANG Shao-bo. Public Traceable Traitor Tracing Scheme Secure against CCA2[J]. Computer Science, 2011, 38(2): 106-109. https://doi.org/
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