欧长海，男，苗族，博士，BET体育官方网站(中国)有限公司教授。1989年出生于贵州铜仁，2013年毕业于北京交通大学计算机科学与技术专业，2018年获得中国科学院大学网络空间安全学院(中国科学院信息工程研究所)网络空间安全专业工学博士学位。同年，就职于新加坡南洋理工大学计算机科学与工程学院，任职Research Fellow，主攻应用密码学、硬件与嵌入式系统安全、密码侧信道分析与安全防护技术。

研究方向包括（但不限于）：应用密码学、硬件与嵌入式系统安全、侧信道安全、智能安全等。累计发表论文30余篇，包括IEEE TIFS、TC、TCAD、TITS、TVLSI、IEEE Internet of Things Journal、AsiaCCS等国际权威期刊和会议，以及电子学报、密码学报等国内一流期刊。其中，IEEE Transactions 共10余篇，CCF-A类一作7篇。担任EUROCRYPT、IEEE TIFS、TCAD、TOMM、ACM TECS、TCHES、Information Sciences、IEEE Internet of Things Journal、ICICS等知名期刊会议审稿人，第9、10届国际嵌入式系统安全证明研讨会（PROOFS）程序委员会委员。

欢迎对密码学、网络安全、系统安全、信号处理、人工智能、数理统计、数字电路等感兴趣的同学联系并加入我的团队（邮箱：keanut@126.com），度过愉快充实的研究生时光。

应用密码学、硬件与嵌入式系统安全、侧信道安全、智能安全等

2013/09-2018/06，中国科学院大学，网络空间安全学院（中国科学院信息工程研究所），博士/工学博士学位，导师：孙德刚

2009/09-2013/06，北京交通大学，计算机与信息技术学院，本科/工学学士学位

2021—至今，BET体育官方网站(中国)有限公司， 教授

2018/08—2021/03，新加坡南洋理工大学， 计算机科学与工程学院，Research Fellow

《离散数学》

部分代表作如下：

一、期刊部分

2021年

[1] Shihui Zheng, Xudong Liu, Shoujin Zang, Yihao Deng, Dongqi Huang, and Changhai Ou. A Persistent-Fault based Collision Analysis against Advanced Encryption Standard. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems. (已录用，CCF-A 类)

2020 年

[2] Changhai Ou, Xinping Zhou, Siew Kei Lam. Information Entropy Based Leakage Profiling. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems. DOI: 10.1109/TCAD.2020.3036810, (2020)                   ( CCF-A 类)

[3]  Changhai Ou, Xinping Zhou, Siew-Kei Lam and Guiyuan Jiang. The Science of Guessing in Collision Optimized Divide-and-Conquer Attacks. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, DOI: 10.1109/TCAD.2020.3031243.                                      (CCF-A 类)

[4] Changhai Ou, Siew-Kei Lam, Degang Sun, Xinping Zhou, Kexin Qiao, Qu Wang. SNR-Centric Power Trace Extractors for Side-Channel Attacks. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, doi: 10.1109/TCAD.2020.3003849, (2020).                                    (CCF-A 类)

[5] Changhai Ou, Siew-Kei Lam, Chengju Zhou, Guiyuan Jiang, Fan Zhang. A Lightweight Detection Algorithm for Collision-Optimized Divide-and-Conquer Attacks.  IEEE Transactions on Computers, 69(11): 1694-1706 (2020).                                                                        (CCF-A 类)

[6] Changhai Ou, Chengju Zhou, Siew-Kei Lam and Guiyuan Jiang. Multiple-Differential Mechanism for Collision-Optimized Divide-and-Conquer Attacks. IEEE Transactions on Information Forensics and Security, 16: 418-430 (2021).                                                              ( CCF-A 类) 

[7] Guiyuan Jiang, Siew-Kei Lam, Peilan He, Changhai Ou, Dihao Ai. A Multi-Scale Attributes Attention Model for Transport Mode Identification. IEEE Transactions on Intelligent Transportation Systems, DOI: 10.1109/TITS.2020.3008469, (2020)                                                 ( CCF-A 类)

[8] Qu Wang, Haiyong Luo, Langlang Ye, Aidong Men, Fang Zhao, Yan Huang, Changhai Ou. Personalized Stride-Length Estimation Based on Active Online Learning. IEEE Internet of Things Journal, 7(6): 4885-4897 (2020).                                                                         (SCI-1区)

2019年

[9] Changhai Ou, Chengju Zhou and Siew-Kei Lam. A First Study of Compressive Sensing for Side-Channel Leakage Sampling. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 39(10): 2166-2177 (2020).                                                               ( CCF-A 类)

[10] Saru Vig, Rohan Juneja, Guiyuan Jiang, Siew-Kei Lam and Changhai Ou. Framework for Fast Memory Authentication using Dynamically Skewed Integrity Tree. IEEE Transactions on Very Large Scale Integration Systems,27(10):2331-2343 (2019).                                                  ( CCF-B 类)

2018年

[11] Changhai Ou, Zhu Wang, Degang Sun, Xinping Zhou. Group Collision Attack. IEEE Transactions on Information Forensics and Security, 14(4): 939-953 (2019).                               (CCF-A 类)

2017年

[12]  周新平, 孙德刚, 王竹, 欧长海. 一种基于奇异值分解的功耗轨迹筛选方法 [J]. 电子学报,2017,45(09):2250-2255.

2015年

[13]  Changhai Ou, Zhu Wang, Weiqing Huang, Xinping Zhou, Juan Ai and Na Pang. Amplified Template Attacks on Cryptographic Devices Using Hamming Weight Model. Journal of Cryptologic Research, 2(5): 477–486 (2015).

二、会议部分

[1]  Changhai Ou, Zhu Wang, Juan Ai, Xinping Zhou, Degang Sun and V. Debrunner. Error Tolerance based Single Interesting Point Side Channel CPA Distinguisher. AsiaCCS 2016, Pages 819–827, 2016.        (CCF-C 类)

[2]  Changhai Ou, Zhu Wang, Degang Sun, Xinping Zhou and Juan Ai. Group Verification based Multiple-Differential Collision Attack. ICICS 2016, Pages 145–156, 2016.                           (CCF-C 类)

[3]  Changhai Ou, Zhu Wang, Degang Sun, Xinping Zhou and Juan Ai. A New High Efficient Interesting Points Enhanced Electromagnetic Attack on AT89S52. EMC 2016, Pages:176–181, 2016.        (国际电磁学旗舰会议)

[4]  Changhai Ou, Zhu Wang, Degang Sun, Xinping Zhou and Juan Ai. Power Traces Clipping and Splicing Enhanced Correlation Collision Analysis. TrustCom 2016, Pages 989–995, 2016.              (CCF-C 类)

[5] Changhai Ou, Zhu Wang, Degang Sun, Xinping Zhou and Juan Ai. Uncertain? No, It’s Very Certain! - Recovering the Key from Guessing Entropy Enhanced CPA. In ICT Systems Security and Privacy Protection - 31st IFIP TC 11 International Conference, SEC 2016, Pages 308–320, 2016.                           (CCF-C 类)

[6]  Changhai Ou, Zhu Wang, Degang Sun, Xinping Zhou, Juan Ai and Na Pang. Enhanced Correlation Power Analysis by Biasing Power Traces. ISC 2016, Pages 59–72, 2016.                          (CCF-C 类)