| 标准模型下高效的基于身份的加密方案 |
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| 引用本文： | 李云,张永平.标准模型下高效的基于身份的加密方案[J].成都大学学报(自然科学版),2014,33(3):242-246. |
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| 作者姓名： | 李云 张永平 |
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| 作者单位： | 1. 宿迁高等师范学校,江苏宿迁,223800
2. 中国矿业大学计算机学院,江苏徐州,221116 |
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| 基金项目： | 江苏省教育厅自然科学基金 |
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| 摘 要： | 基于身份的加密是一类很重要的公钥加密.给出了一个高效的基于身份的加密方案,提出的方案在标准模型下是针对选择密文攻击完全安全的,并运用线性无关的思路基于q-ABDHE假设证明了方案的安全性.方案具有高效性、公钥参数较短及配对计算较少的特点.
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| 关 键 词： | 基于身份加密 标准模型 双线性映射 q-ABDHE假设 |
Efficient Scheme Based on Identity Encryption in Standard Model |
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| LI Yun,ZHANG Yongping.Efficient Scheme Based on Identity Encryption in Standard Model[J].Journal of Chengdu University (Natural Science),2014,33(3):242-246. |
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| Authors: | LI Yun ZHANG Yongping |
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| Institution: | LI Yun;ZHANG Yongping;Suqian Higher Normal School;School of Computer Science and Technology,China University of Mining and Technology; |
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| Abstract: | The identity-based encryption is an important type of public key encryption.In the past ten years,cryptography researchers put a lot of efforts on identity-based encryption,and a lot of research works have been obtained.At present,the best model is the one in which security is obtained against chosen ciphertext attacks in the standard model.This paper gives a practical identity-based encryption scheme.The proposed scheme is fully secure against the chosen ciphertext attacks in the standard model.Based on q-ABDHE hypothesis,we use the linearly independent thought to prove the security of the scheme.The proposed scheme has the advantages of high efficiency,shorter parameters of public key and less pairing computation. |
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| Keywords: | identity-based encryption standard model bilinear map q-ABDHE hypothesis |
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