|
|||||
|
|
| Tight chosen ciphertext attack （CCA）-secure hybrid encryption scheme with full public verifiability | |
| 作者姓名： | KANG Li ;TANG XiaoHua ;LIU JiaFen |
| 作者单位： | [1]School of Economic Information Engineering, Southwestern University of Finance and Economics, Chengdu 611130, China; [2]Research Center for Payment Systems of China, Southwestern University of Finance and Economics, Chengdu 610074, China; [3]Information Security and National Computing Grid Lab, Southwest Jiaotong University, Chengdu 610031, China |
| 基金项目： | supported in part by the National Natural Science Foundation of China(Grant No.91218301,60903201);the Ministry of Education of Humanities and Social Science Foundation of China(Grant No.11XJCZH002);the Fundamental Research Funds for the Central Universities(Grant No.JBK130503);supported in part by the Key Grant Project of the Chinese Ministry ofEducation(Grant No.311031);the Innovative Research Team of Sichuan Province(Grant No.2011JTD0007) |
| 摘 要： | In this paper, we propose a new ＂full public verifiability＂ concept for hybrid public-key encryption schemes. We also present a new hybrid public-key encryption scheme that has this feature, which is based on the decisional bilinear Diffie-Hellman assumption. We have proven that the new hybrid public-key encryption scheme is secure against adaptive chosen ciphertext attack in the standard model. The ＂full public verifiability＂ feature means that the new scheme has a shorter ciphertext and reduces the security requirements of the symmetric encryption scheme. Therefore, our new scheme does not need any message authentication code, even when the one-time symmetric encryption scheme is passive attacks secure. Compared with all existing publickey encryption schemes that are secure to the adaptive chosen ciphertext attack, our new scheme has a shorter ciphertext, efficient tight security reduction, and fewer requirements （if the symmetric encryption scheme can resist passive attacks）. |
| 关 键 词： | 选择密文攻击 加密方案 混合动力 公开验证 Diffie-Hellman假设 CCA 安全性要求 被动攻击 |
Tight chosen ciphertext attack (CCA)-secure hybrid encryption scheme with full public verifiability |
|
| KANG Li,;TANG XiaoHua,;LIU JiaFen.Tight chosen ciphertext attack (CCA)-secure hybrid encryption scheme with full public verifiability[J].SCIENCE CHINA Information Sciences,2014,57(11):1-14. | |
| Authors: | Li Kang XiaoHu Tang JiaFen Liu |
| Affiliation: | 1. School of Economic Information Engineering, Southwestern University of Finance and Economics, Chengdu, 611130, China 2. Research Center for Payment Systems of China, Southwestern University of Finance and Economics, Chengdu, 610074, China 3. Information Security and National Computing Grid Lab, Southwest Jiaotong University, Chengdu, 610031, China |
| Abstract: | In this paper, we propose a new “full public verifiability” concept for hybrid public-key encryption schemes. We also present a new hybrid public-key encryption scheme that has this feature, which is based on the decisional bilinear Diffie-Hellman assumption. We have proven that the new hybrid public-key encryption scheme is secure against adaptive chosen ciphertext attack in the standard model. The “full public verifiability” feature means that the new scheme has a shorter ciphertext and reduces the security requirements of the symmetric encryption scheme. Therefore, our new scheme does not need any message authentication code, even when the one-time symmetric encryption scheme is passive attacks secure. Compared with all existing publickey encryption schemes that are secure to the adaptive chosen ciphertext attack, our new scheme has a shorter ciphertext, efficient tight security reduction, and fewer requirements (if the symmetric encryption scheme can resist passive attacks). |
| Keywords: | public-key encryption （PKE） hybrid PKE public verifiability passive attack （PA） security chosen ciphertext attack （CCA） security decisional bilinear Diffie Hellman |
| 本文献已被 CNKI 维普 SpringerLink 等数据库收录！ | |