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中文摘要：
基于大整数分解困难问题构造一个特殊等式，并引进一个参教传递服务密钥,解密时利用特殊等式和服务密钥可获得会话密钥,在此基础上，提出了面向多服务的基于大整数分解困难问题的叛逆者追踪方案,该方案具有多服务、前向安全性和后向安全性，可进行黑盒子追踪、增加或撤销用户，密文长度为常量等优点，整体性能好于已有方案．
英文摘要：
A special equation is constructed based on large integer factoring problem （LIFP） and a parameter is introduced to transfer service private-key. The session key can be obtained by using the special equation and the service private-key in decryption. On the basis of the above, a multi-service oriented traitor tracing scheme on LIFP is proposed. It has many advantages such as multi-service, black-box traitor tracing, ciphertexts of constant size, adding or revoking users, and forward and backward security. Its whole capabilities are also better than the existing ones.
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