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| 子群中完全安全的基于身份的广播加密 | |
| 引用本文： | 张乐友,胡予濮,吴青. 子群中完全安全的基于身份的广播加密[J]. 中国通信, 2011, 8(2): 152-158 |
| 作者姓名： | 张乐友 胡予濮 吴青 |
| 摘 要： | |
| 收稿时间： | 2011-07-15; |
Fully Secure Identity-based Broadcast Encryption in the Subgroups |
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| Zhang Leyou,,Hu Yupu,Wu Qing. Fully Secure Identity-based Broadcast Encryption in the Subgroups[J]. China Communications, 2011, 8(2): 152-158 | |
| Authors: | Zhang Leyou Hu Yupu Wu Qing |
| Affiliation: | 1Department of Mathematical Science, Xidian University, Xi'an 710071, P. R. China 2Key Laboratory of Computer Networks and Information Security, Ministry of Education, Xidian University, Xi'an 710071, P. R. China 3School of automation, Xi’an Institute of Posts and Telecommunications, Xi’an 710121, P. R. China |
| Abstract: | In this paper, we show how to use the dual techniques in the subgroups to give a secure identitybased broadcast encryption(IBBE) scheme with constant-size ciphertexts. Our scheme achieves the full security (adaptive security) under three static (i.e. non q-based) assumptions. It is worth noting that only recently Waters gives a short ciphertext broadcast encryption system that is even adaptively secure under the simple assumptions. One feature of our methodology is that it is relatively simple to leverage our techniques to get adaptive security. |
| Keywords: | identity-based broadcast encryption dual system encryption full security static assumption subgroup provable security |
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