西安电子科技大学数学与统计学院导师教师师资介绍简介-张乐友

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基本信息
张乐友　教授
硕导或博导： 博导
博士学科：应用数学/密码学
硕士学科：应用数学
工作单位：数学与统计学院

联系方式
通信地址：陕西省西安市长安区西沣路兴隆段266号西安电子科技大学南校区数学与统计学院
邮编：710126
邮箱：lyzhang@mail.xidian.edu.cn
办公地点：E-401-1

特别声明
本课题组的研究方向和科研任务属于应用数学、公钥密码学、网络与信息安全交叉领域，课题经费充足。非常欢迎优秀毕业生报考本课题组攻读硕士学位！
注意：硕士研究生每年招收名额3人

个人简历
张乐友,男，1977年生，山东新泰人，现任西安电子科技大学数学与统计学院教授，博士，研究生导师。2002年获西安电子科技大学获理学硕士学位，2009年6月获西安电子科技大学获博士学位，博士论文题目《可证明安全公钥密码方案的设计与分析》，指导教师为西安电子科技大学通信工程学院胡予濮教授。2009年7月晋升副教授，2015年7月晋升教授。2013年12月至2014年12月于University of Wollongong（澳大利亚伍伦贡大学）作访问****。2005年至今，已发表论文80多篇。先后担任国际期刊IEEE Transactions on Information Forensics and Security, IEEE Transactions on Computers, IEEE access, IEEE system journal, IEEE Privacy and security， Information Science, Journal of system and software，ETRI Journal, IET Communications/information security，Mathematical and computer Modelling, KSII Transactions on internet and information systems, International journal of computer mathematics, ETRI journal, Journal of Computer networks, Journal of Networks and Computer Applications和国内期刊《计算机学报》，《电子学报(中、英文版)》，《电子与信息学报》，《西安电子科技大学学报》等审稿人。

主要研究方向
1、可证明安全理论；
2、基于身份的加密、数字签名及协议；
3、基于属性的加密、隐私保护及区块链研究；
4、公钥广播加密；
5、网络安全与信息安全，云计算安全关键技术研究；

主持参与的重点项目
1、抗泄漏攻击属性基加密研究，中国密码局密码发展基金
2 、云环境下抗连续型泄露攻击公钥密码体制研究, 陕西省项目
3、云端中支持细粒度访问控制策略的属性基加密（83万）, 国家自然科学基金
4、标准模型下可证明安全的新型分级身份基加密研究, 国家自然科学基金
5 、公钥广播加密的设计与分析, 国家自然科学基金
6 、基于新型数学困难问题的广播加密的设计, 中央高校基础研究基金
7、新型可证明安全公钥广播加密的设计与分析, 陕西省项目
8、后量子背包密码的设计与分析, 国家自然科学基金, 已完成
9 、快速公钥的设计与分析, 国家自然科学基金, 已完成
10 、分组密码新型分析技术研究, 国家自然科学基金, 已完成
11 、*科研项目*-*科研项目*, 国家科技支撑计划
12、密码破译相关理论技术研究
13、多源异构数据融合的安全共享交换与智能协同计算（262万），国家自然科学重点基金-联合基金

科学研究
目前承担部分科研项目如下：
1、抗泄漏攻击属性基加密研究，中国密码局密码发展基金
2 、云环境下抗连续型泄露攻击公钥密码体制研究, 陕西省项目
3、云端中支持细粒度访问控制策略的属性基加密（83万）, 国家自然科学基金
4、标准模型下可证明安全的新型分级身份基加密研究, 国家自然科学基金
5 、公钥广播加密的设计与分析, 国家自然科学基金
6 、基于新型数学困难问题的广播加密的设计, 中央高校基础研究基金
7、新型可证明安全公钥广播加密的设计与分析, 陕西省项目
8、后量子背包密码的设计与分析, 国家自然科学基金, 已完成
9 、快速公钥的设计与分析, 国家自然科学基金, 已完成
10 、分组密码新型分析技术研究, 国家自然科学基金, 已完成
11 、*科研项目*-*科研项目*, 国家科技支撑计划
12、密码破译相关理论技术研究
13、多源异构数据融合的安全共享交换与智能协同计算（262万），国家自然科学重点基金-联合基金

学术论文
至今已发表科研论文90余篇，其中40余篇被SCI检索，50篇左右被EI检索，部分文章列举如下。
Leyou Zhang,Yadi Ye, Yi Mu, Multi-authority Access Control with Anonymous Authentication for Personal Health Record, IEEE Internet of Things Journal, 8(1), 2021, pp. 156-167. (SCI , EI)
Leyou Zhang, Jun Wang, Yi Mu, Privacy-preserving Flexible Access Control to Encrypted Data in Internet of Things,IEEE Internet of Things Journal, 2021, DOI:10.1109/JIOT.2021.**. (SCI , EI)
Leyou Zhang, Wenting You, Yi Mu, Secure Outsourced Attribute-based Sharing Framework for Lightweight Devices in Smart Health Systems, IEEE transactions on Services Computing, 2021, DOI:10.1109/TSC.2021.**. (SCI , EI)
Fatemeh Rezaeibagha, Yi Mu,Ke Huang,Leyou Zhang,Xinyi Huang, Secure and Privacy-Preserved Data Collection for IoT Wireless Sensors, IEEE Internet of Things Journal, 2021, DOI:10.1109/JIOT.2021.**. (SCI , EI)
Gongcheng Hu Leyou Zhang, Yi Mu, An Expressive “test-decrypt-verify” Attribute-Based Encryption Scheme with Hidden Policy for Smart Medical Cloud. IEEE systems Journal, 15(1), 2020, pp. 365-376 (SCI , EI)
Leyou Zhang, Yi Lei Cui, Yi Mu, Improving Security and Privacy Attribute Based Data Sharing in Cloud Computing, IEEE systems Journal,14(1), 2020, pp. 387-397, doi: 10.1109/JSYST.2019.**. (SCI , EI)
Leyou Zhang, Xuehuang Gao, Li Kang, Pengfei Liang, Yi Mu, Improving Security and Privacy Attribute Based Data Sharing in Cloud Computing, IEEE Systems Journal, doi: 10.1109/JSYST.2021.**. 2021. (SCI , EI)
Gongcheng Hu, Leyou Zhang, Yi Mu, Xiaoxu Gao. An Expressive“test-decrypt-verify” Attribute-Based Encryption Scheme with Hidden Policy for Smart Medical Cloud [J]. IEEE Systems Journal. DOI: 10.1109/JSYST.2020.**),(SCI)
Leyou Zhang, Jian Su, Yi Mu. Outsourcing Attributed-Based Ranked Searchable Encryption With Revocation for Cloud Storage 104344 - 104356 DOI: 10.1109/ACCESS.2020.** : IEEE Access ( Volume: 8 ), (SCI , EI)
Leyou Zhang, Jun Wang, Yi Mu. Secure and Privacy-Preserving Attribute-Based Sharing Framework in Vehicles Ad Hoc Networks. IEEE Access, ( Volume: 8 ),DOI: 10.1109/ACCESS.2020.**,(SCI , EI)
Leyou Zhang, Gongcheng Hu, Yi Mu. Hidden Ciphertext Policy Attribute-Based Encryption with Fast Decryption for Personal Health Record System [J]. IEEE Access, 2019, 3(7): 33202-33213. (SCI)
Gongcheng Hu, Leyou Zhang. Analysis of Ciphertext Policy Hidden AttributeBased Encryption and Its Improved Method [C]. 2019 International Conference on Frontiers in Cyber Security (FCS-2019). Springer, 193-208. (EI: 20**5)
Leyou Zhang, Juan Ren, Yi Mu and Baocang Wang. Privacy-Preserving Multi-Authority Attribute-Based Data Sharing Framework for Smart Grid[J]. IEEE Access, 2020, 8: 23294-23307. (SCI, EI)
Juan Ren, Leyou Zhang. Hierarchical Identity-Based Signature over Verifiable Random Function[C]. In: Shen B., Wang B., Han J., Yu Y. (eds) Frontiers in Cyber Security. FCS 2019. Communications in Computer and Information Science,Springer, Singapore, 2019, 1105: 177-189. (EI:20**4)
Juan Ren, Leyou Zhang and Baocang Wang. Decentralized Multi-Authority Attribute-Based Searchable Encryption Scheme[J]. International Journal of Network Security. (EI)
Leyou Zhang, Juan Ren, Yi Mu and Baocang Wang. Decentralized Multi-Authority Attribute-Based Access Control Scheme with Fully Hidden Policy[J]. International Journal of Network Security. (EI)
Leyou Zhang, Xiaoxu Gao, Fuchun Guo, Gongcheng Hu. Improving the Leakage Rate of Ciphertext-Policy Attribute-Based Encryption for Cloud Computing[J], IEEE Access. DOI: 10.1109/ACCESS.2020.**), (SCI , EI)
Xiaoxu Gao, Leyou Zhang, Gongcheng Hu. Anonymous Leakage-Resilient Ciphertext-Policy Attribute-Based Encryption Supporting Direct Revocation[C], Springer FCS 2019, CCIS 1105, 2019. pp. 21–35(EI: 20**2)
Xiaoxu Gao, Leyou Zhang. Efficient Anonymous Ciphertext-Policy Attributebased Encryption for General Structures Supporting Leakage-Resilience[J], International Journal of Network Security. (SCI)
Li Kang, Leyou Zhang. A Privacy-Preserving Data Sharing System with Decentralized Attribute-Based Encryption Scheme [J]. International Journal of Network Security. (EI)
Li Kang, Leyou Zhang. Improving File Hierarchy Attribute-Based Encryption Scheme with Multi-Authority in Cloud [C]. Springer FCS 2019, CCIS 1105, 2019, pp.3-18 (EI: 20**1)
Pengfei Liang, Leyou Zhang, Li Kang, Juan Ren. Privacy-preserving decentralized ABE for secure sharing of personal health records in cloud storage [J]. Journal of Information Security and Applications, 2019, pp.258-266 (SCI: WOS: 027； EI: 20**0)
Leyou Zhang, Pengfei Liang, Yi Mu: Improving Privacy-Preserving and Security for Decentralized Key-Policy Attributed-Based Encryption. IEEE Access 6: 12736-12745 (2018), (SCI , EI)
Leyou Zhang, Zhuanning Wang, Yi Mu, Yupu Hu: Fully secure hierarchical inner product encryption for privacy preserving keyword searching in cloud. IJHPCN 11(1): 45-54 (2018),(SCI , EI)
Leyou Zhang, Hongjian Yin: Recipient Anonymous Ciphertext-Policy Attribute-based Broadcast Encryption. I. J. Network Security 20(1): 168-176 (2018), (SCI)
Hongjian Yin, Leyou Zhang, Yi Mu: A Novel Privacy-Preserving Decentralized Ciphertext-Policy Attribute-Based Encryption with Anonymous Key Generation. ICCCS (3) 2018: 435-446 (SCI)
Leyou Zhang, Yilei Cui, Yi Mu: Improving Privacy-Preserving CP-ABE with Hidden Access Policy. ICCCS (3) 2018: 596-605. (SCI , EI)
Yujie Shang, Leyou Zhang, Xiaoxu Gao. Continual Auxiliary Leakage-Resilient Attribute-Based Broadcast Encryption with Constant Size Ciphertexts[J], The Journal of China Universities of Posts and Telecommunications. (EI)
Leyou Zhang, Jingxia Zhang, Yi Mu: Novel Leakage-Resilient Attribute-Based Encryption from Hash Proof System. Comput. J.60(4): 541-554 (2017) ,(SCI)
Qing Wu, Leyou Zhang, Jingxia Zhang: Fuzzy Biometric-Based Encryption for Encrypted Data in the Cloud. IEICE Transactions 100-A(5): 1257-1261 (2017) (SCI)
Leyou Zhang, Zongchen Sun, Yi Mu, Yupu Hu: Revocable hierarchical identity-based encryption over lattice for pay-TV systems. IJES 9(4): 379-398 (2017), (SCI , EI)
Jing Wei, Leyou Zhang: Ciphertext policy attribute-based encryption with hierarchical domain authorities and users in cloud. IJHPCN 10(6): 524-533 (2017),(SCI , EI)
Jingxia Zhang, Leyou Zhang: Anonymous CP-ABE against Side-channel Attacks in Cloud Computing. J. Inf. Sci. Eng. 33(3): 789-805 (2017), (SCI , EI)
Leyou Zhang, Qing Wu: Adaptively Secure Hierarchical Identity-Based Encryption over Lattice. NSS 2017: 46-58, (SCI , EI)
Hongjian Yin, Leyou Zhang: Security Analysis and Improvement of An Anonymous Attribute-Based Proxy Re-encryption. SpaCCS 2017: 344-352, (SCI , EI)
Leyou Zhang, Yi Mu, Qing Wu: Compact Anonymous Hierarchical Identity-Based Encryption with Constant Size Private Keys. Comput. J. 59(4): 452-461, (SCI , EI)
Leyou Zhang, Qing Wu, Yi Mu, Jingxia Zhang: Privacy-Preserving and Secure Sharing of PHR in the Cloud. J. Medical Systems 40(12): 267:1-267:13, (SCI , EI)
Leyou Zhang, Zhuanning Wang, Yi Mu, Yupu Hu: Fully Secure Hierarchical Inner Product Encryption for Privacy Preserving Keyword Searching in Cloud. 3PGCIC 2015: 449-453, (SCI , EI)
Leyou Zhang, Zhuanning Wang, Qing Wu: Leakage-Resilient Anonymous Identity-Based Broadcast Encryption in the Standard Model. ICA3PP (Workshops and Symposiums) 2015: 201-210, (SCI , EI)
Leyou Zhang, Yupu Hu. New Constructions of Hierarchical Attribute-Based Encryption for Fine-Grained Access Control in Cloud Computing. KSII Transactions on internet and information systems,7,(5),1343-1356, 2013. (SCI)
Leyou Zhang, Yupu Hu and Qing Wu. Adaptively Secure Identity-based Broadcast Encryption with constant size private keys and ciphertexts from the Subgroups。 Mathematical and computer Modelling, 2012, 55，pp. 12–18，2012. (SCI,EI
Leyou Zhang, Qing Wu and Yupu Hu. Hierarchical Identity-based Encryption with Constant size private keys。ETRI Journal，2012, 34(1)，142-145。(SCI,EI)
Leyou Zhang, Yupu Hu and Qing Wu. Fully Secure Identity-based Broadcast Encryption in the Subgroups, China Communications, Vol. 8, No. 2, 152-158, 2011(SCI).
Leyou Zhang, Yupu Hu and Qing Wu. New Constructions of Identity-based Broadcast Encryption without Random Oracles. KSII Transactions on internet and information systems, Vol.5 No.2, pp. 247-476, 2011 (SCI).
Leyou Zhang, Yupu Hu and Qing Wu. Unbounded Hierarchical Identity-based Encryption in the Standard Model。Information Journal, Vol. 15, NO. 1, pp.105-112, 2012. (SCI)
Leyou Zhang, Yupu Hu and Qing Wu. Identity-based threshold broadcast encryption in the standard model. KSII Transactions on internet and information systems, Vol. 4, No. 3, pp.400-410, 2010 .(SCI)
Leyou Zhang, Yupu Hu and Qing Wu. New Construction of Short Hierarchical ID-Based Signature in the Standard Model, Fundamenta Informaticae, 90（1-2），191-201, 2009. (SCI,EI).
Leyou Zhang, Yupu Hu and Qing Wu. Efficient Dynamic Data Encryption Algorithm for Mobile Ad Hoc Network, Przeglad Elektrotechniczny, 12(9b):42-47,2012. (SCI)
Qing Wu, Sanyang Liu and Leyou Zhang. Support vector regression based on adjustable entropy function approach. Journal of Information Science and Engineering, 2010, 26: 2331-2339. (SCI ,EI)
Qing Wu, Sanyang Liu and Leyou Zhang. Particle swarm optimization for semi-supervised support vector machine. Journal of Information Science and Engineering, 2010, 26: 1695-1706. (SCI , EI)
Qing Wu, Sanyang Liu and Leyou Zhang. Adjustable entropy function method for support vector machines. Journal of Systems Engineering and Electronics, 2008, 19(5): 1029-1034. (SCI ,EI )
Qing Wu, Sanyang Liu and Leyou Zhang. Hypersphere support vector machines based on multiplicative updates. ICNC 2006, Part I, LNCS 4221, pp. 1-4, 2006. Springer-Verlag Berlin Heidelberg 2006. (SCI,EI)
Leyou Zhang, Yupu Hu and Qing Wu. Secure Identity-based Ad Hoc Protocols for Mobile Networks.ICIC Express Letters, Vol. 5, No. 2, 2011, pp. 293-298.(EI).
Leyou Zhang, Qing Wu and Yupu Hu, Direct Chosen-Ciphertext Technique for Identity-based Broadcast Encryption, Journal of comptution information system, Accepted, In press, 2011.(EI)
Leyou Zhang, Yupu Hu and Qing Wu, Adaptively secure hierarchical identity-based signature in the standard model. The Journal of China Universities of Posts and Telecommunications, Vol. 17, No. 6, 2010,pp.95-100.(EI).
Leyou Zhang, Qing Wu and Yupu Hu. Adaptively Secure Identity-based Encryption in the Anonymous Communications. ICIC Express Letters, Vol. 5. No. 9(A), 3209-3216. (EI)
Leyou Zhang,Yupu Hu and Qing Wu. Adaptively Secure Identity-based Threshold Broadcast Encryption without Random Oracles. AMR Journal, Vols. 143-144 (2011) pp 347-352.(EI)
Leyou Zhang, Yupu Hu and Qing Wu. Short signature in the Standard Model. ICIC Express Letters,Vol. 5, No. 4(B), 1313-1320,2011.(EI)
Leyou Zhang, Yupu Hu and Qing Wu. Fuzzy Biometric Identity-based Signature in the Standard Model, AMM Journal, Vols. 44-47, 2011, pp. 3350-3354.(EI)
Leyou Zhang, Yupu Hu and Qing Wu. New Constructions of Short Signatures in the Standard Model。Journal of Software. Accepted，2011.(EI)
Leyou Zhang, Hu yupu, Tian xu’an, Yang yang. New construction of identity-based threshold decryption. Wuhan University journal of natural science. Vol. 15, No.3, June 2010, pp. 222-226.
Leyou Zhang, Yupu Hu, Qing Wu, Xu’an Tian. Secure short Hierarchical identity-based signature in the standard model. IEEE international conference on network security, wireless communications and trusted computing, Vol. 1, pp. 366-369, IEEE computer society, 2010. (EI, ISTP)
Leyou Zhang, Yupu Hu, Xu’an Tian, Yang Yang. Novel identity-based blind signature for electronic voting system. IEEE international workshop on education technology and computer science. Vol. 2, 122-125, IEEE computer society, 2010. (EI, ISTP).
Leyou Zhang, Yupu Hu, Xu’an Tian, New Identity-based Threshold Broadcast Encryption for Ad Hoc Networks. IEEE international conference on wireless communications, networking, mobile computing.2010 , Page(s): 1-4. (EI, ISTP)
Leyou Zhang, Yupu Hu and Qing Wu. Short Signature from the Bilinear Pairing.ICICA 2010, Lecture Notes in Computer Science 6377, pp. 111-118, 2010.(EI, ISTP)
Leyou Zhang, Yupu Hu and Ningbo Mu. Identity-Based Broadcast Encryption with Shorter Transmissions.Journal of Shanghai Jiaotong University(Science), 2008, 13（6）: 641-645.(EI)
Leyou Zhang and Yupu Hu. A New Construction of Short Hierarchical Identity-based Signature in the Standard Model. International Journal of Computer Science and Network Security, Vol. 9, No.4, 2009, 180-186.
Leyou Zhang, Yupu Hu and Qing Wu. Short Signature from the Bilinear Pairing. ICICA 2010, Lecture Notes in Computer Science 6377, pp. 111-118, 2010.(EI, ISTP)
张乐友，胡予濮，吴青，标准模型下一种新的基于身份的分级加密方案，电子与信息学报, 2009，31(4),937-941.(EI)
张乐友，胡予濮，标准模型下基于身份的可证安全签名方案，武大学学报信息安全版，2008，33(10)，1076-1079 .(EI)
张乐友，胡予濮，刘振华，标准模型下基于身份的可证安全门限签名方案，西安电子科技大学学报，2008，35 (1)：81-86 .(EI)

导师团队
本科研团队为西安电子科技大学数统院信息安全团队。目前团队导师有：
马华教授 刘振华 教授 李雪莲 副教授

研究生团队
在读研究生

2020级：杨光、赵楚楚、马若男
2019级：张业、张天帅
2018级：苏健、高学凰、游文婷、叶亚迪（数学与统计学院），宋超、王珺（网络与信息安全学院）
已毕业研究生

2017级：胡功成（华为技术有限公司）、康丽（中国移动服务有限公司）、任娟（中国电子科技集团第三十研究所）、高小旭（山西省吕梁市万水中学）
2016级：梁鹏飞（迈瑞医疗国际股份有限公司）、商玉洁（用友软件）、崔义垒（中国移动雄安研究院）
2015级：殷红建（北京科技大学博士）
2014级：孙宗臣（海信集团有限公司）、张静霞(教师)
2013级：王转宁(华为)、韦静(海尔)
2012级：许志琴(教师)

实验室聚餐合照

15、16、17级团队合照

学术研讨会
团队每年都会参加中国密码学学术年会和The International Conference on Frontiers in Cyber Security等会议
2017级（康丽，高小旭，任娟，胡功成等同学于2018年10月25日--10月27日在成都金牛宾馆参加中国密码学2018学术年会）

2017级（康丽，高小旭，任娟，胡功成等同学于2019年11月15日--11月17日在西安长征国际酒店参加The Second International Conference on Frontiers in Cyber Security，并在会上做了相应的论文报告）

论文讨论班
团队每周开两次论文讨论小短会，每次会有1~2名团队成员分享自己最新的研究进展或本周阅读新论文的心得体会（以论文原文或PPT的形式展示）。

密码会议知多少
密码学会议的“前世今生”
在密码学中最具影响力的会议--属国际密码学协会（IACR）所资助的三大密会：
美密会（CRYPTO）
欧密会（EUROCRYPT）
亚密会（ASIACRYPT）
几乎密码学中最重要，最具代表的文章都在会包含这三个会议中，此外，国际密码学协会（IACR）还资助的具有影响力的会议如下：
PKC: focusing on all aspects of public-key cryptography.
Fast Software Encryption: concentrates on fast and secure primitives for symmetric cryptography, including the design and analysis of block ciphers, stream ciphers, encryption schemes, analysis and evaluation tools, hash functions, and message authentication codes.
Cryptographic Hardware and embedded Systems: on all aspects of cryptographic hardware and security in embedded systems.
Theory of Cryptography Conference: deals with the paradigms, approaches and techniques used to conceptualize, define and provide solutions to natural cryptographic problems.

密码期刊（会议）分级
密码学期刊分级

密码学会议分级

课程教学
承担过的教学任务包括：
现代密码学（研究生）
密码前沿讨论课（研究生）
密码学原理与实践（研究生）
信息论基础等课程（研究生）
数学分析（本科生）
线性代数（本科生）
概率论与数理统计（本科生）

招生要求
关于研究生招生的信息如下：
每年招收保送生、优研计划生、统考生3-4名。
欢迎欢迎热爱应用数学、公钥密码学、网络安全与信息安全、隐私安全等研究的同学保送和报考我的团队。
报考前可咨询Email（lyzhang@mail.xidian.edu.cn）联系我们。