[1]陈宇,祁正华,王翔.标准模型下基于身份的分等级加密方案[J].计算机技术与发展,2018,28(06):110-114.[doi:10.3969/ j. issn.1673-629X.2018.06.025]
　CHEN Yu,QI Zheng-hua,WANG Xiang.A Hierarchical Identity-based Encryption in Standard Model[J].,2018,28(06):110-114.[doi:10.3969/ j. issn.1673-629X.2018.06.025]
点击复制

标准模型下基于身份的分等级加密方案()
分享到：

《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
28
期数:
2018年06期
页码:
110-114
栏目:
安全与防范
出版日期:
2018-06-10

文章信息/Info

Title:
A Hierarchical Identity-based Encryption in Standard Model
文章编号:
1673-629X(2018)06-0110-05
作者:
陈宇; 祁正华; 王翔
南京邮电大学 计算机学院,江苏 南京 210003
Author(s):
CHEN Yu; QI Zheng-hua; WANG Xiang
School of Computer Science and Technology,Nanjing University of Posts and Telecommunications,Nanjing 210003,China
关键词:
分等级加密; 标准模型; 双线性对; 安全素数; 抗适应性选择明文攻击
Keywords:
hierarchical encryption; standard model; bilinear pairing; secure prime; against adaptive chosen-plaintext attack
分类号:
TP31
DOI:
10.3969/ j. issn.1673-629X.2018.06.025
文献标志码:
A
摘要:
给出了一种新的基于身份的分等级加密(HIBE)方案,允许用户对设置在层次结构中的多个接收者进行加密,同时支持授权密钥,以减轻密钥生成器的重要管理负担。 提出方案基于标准模型,利用椭圆曲线上的双线性对和 3 个安全素数,对不同素数中的元素构造私钥,生成短的固定密文,并证明了该方案具有抗适应性选择身份向量集和选择明文攻击安全。 另外,基于 Lewko 的双系统的新技术,证明了该方案的安全性。 实验结果表明,加密算法只需 2 个指数运算和 2 个乘法运算;解密算法需要 1 个指数运算、1 个乘法运算和 2 个双线性对运算。 与现有的 HIBE 相比,该方案具有较短的私钥长度和密文长度,减少了双线性对计算的次数,具有一定的高效性。
Abstract:
We propose a new hierarchical identity-based encryption scheme which allows users to encrypt to multiple receivers organized in hierarchy,while supporting delegation of secret keys to relieve the private key generator from heavy key management burden. The scheme uses bilinear pairing on elliptic curves and three secure primes based on the standard model,constructs the private key of the elements in distinct primes and generats short fixed ciphertext,and achieves a secure against adaptively chosen-identity-vector-set and chosen-plaintext attack. In addition,its security is provable on the new technology of Lewko’s dual system. The experiment shows that the encryption algorithm has only two exponent operations and two multiplication operations;and the decryption algorithm requires one exponent operation,one multiplication operation and two bilinear pairings. Compared with the existing HIBE,the improved scheme has short private key length and ciphertext length,which is efficient and reduces the number of computations of bilinear pairing.

相似文献/References:

[1]张春生 姚绍文.标准模型下的无证书代理环签名方案[J].计算机技术与发展,2012,(11):235.
　ZHANG Chun-sheng,YAO Shao-wen.Certificateless Proxy Ring Signature Scheme in Standard Model[J].,2012,(06):235.
[2]黄海,祁正华,杨红尘. 标准模型下基于身份的高效多签密方案[J].计算机技术与发展,2016,26(12):122.
　HUANG Hai,QI Zheng-hua,YANG Hong-chen. An Efficient Identity-based Multi-signcryption in Standard Model[J].,2016,26(06):122.
[3]史华婷,万中美. 一种无证书签名方案的分析与改进[J].计算机技术与发展,2017,27(05):133.
　SHI Hua-ting,WAN Zhong-mei. Analysis and Improvement of a Certificateless Signature Scheme[J].,2017,27(06):133.
[4]吴振国,祁正华,王翔.标准模型下一种高效的基于身份的多签密方案[J].计算机技术与发展,2018,28(07):108.[doi:10.3969/ j. issn.1673-629X.2018.07.023]
　WU Zhen-guo,QI Zheng-hua,WANG Xiang.An Efficient Identity-based Multi-signcryption Scheme in tandard Model[J].,2018,28(06):108.[doi:10.3969/ j. issn.1673-629X.2018.07.023]

更新日期/Last Update: 2018-08-16