计算机科学 ›› 2015, Vol. 42 ›› Issue (3): 106-110.doi: 10.11896/j.issn.1002-137X.2015.03.022
于志敏,景征骏,古春生
YU Zhi-min, JING Zheng-jun and GU Chun-sheng
摘要： 提出了基于多线性映射的环签密广播方案,环成员代表环群体匿名签密并广播给多个接收者。其具有两个用户群之间环签密通信的功能。该方案满足环签密广播的安全要求,能够保证签密所传输消息的保密性、签密的不可伪造性、签密者的匿名性。在随机预言模型下,把方案的安全性归约到分级Diffie-Hellman判定问题(GDDH)进行求解。
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