Sherman S. M. Chow

B.Eng., M.Phil. (HKU), M.S., Ph.D. (NYU)
EAI Fellow 2019
100 Most Influential Scholars (Security and Privacy, 2018)
101 Most Influential Scholars (Security and Privacy, 2019)
[ Official | Scholar | Google | ORCID ]
Email: [username]@ie.cuhk.edu.hk
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He has served as a program co-chair of BlockSEA '18, CANS '17, Security in Cloud Computing '15, ISC '14, and ProvSec '14, and as a senior program committee member of PETS 2022. He also serves on the program committees of 200+ international conferences/workshops (full list in '10-'22) on cryptography, security, privacy, network, cloud, fintech, access control, IoT, PKI, and forensics, including

• Crypto 2019, AsiaCrypt 2012-2017, CT-RSA 2020, PKC 2015
• Usenix Security 2021-22, CCS 2014, 22, AsiaCCS 2013-22, ESORICS 2016-21
• Web 2019, 21-22, PETS 2018, 21-22, SACMAT 2016-17, Financial Crypt. 2015
• Infocom 2015-2019 (Distinguished TPC in 2018), ICDCS 2015-16, 20-22

He is invited to help

• European Research Council as a Remote Referee (2020)
• on the committee of The Caspar Bowden Award for Outstanding Research in Privacy Enhancing Technologies (PET Award) 2019
• LSCM as an Expert Review Panel member (Jan '15 to Dec '20)
• reviewing for Technology and Business Development Fund (TBF) application at CUHK (2020)

He is the Deputy Editor (Cryptography) of IET Information Security (IET-IFS). Also, he serves on the editorial boards of

• ACM Distributed Ledger Technologies: Research and Practice (DLT, Oct 2021)
• IEEE Trans. Dependable and Secure Computing (TDSC, May 2021)
• IET Information Security (IET-IFS, 2018-20)
• IEEE Trans. Information Forensics and Security (TIFS, 2015-19)
• Intl. J. Information Security (IJIS, since May 2013)
• SpringerBriefs on Cyber Security Systems and Networks
  (CSSN, founding board, since Apr 2017)
• EAI Endorsed Transactions on Scalable Information Systems
  (Area Editor: Information Security, since May 2018)

also as a lead guest-editor of

• ACM Transactions on Embedded Computing Systems (TECS)
  Cryptographic Engineering for Internet of Things: Security Foundations, Lightweight Solutions, and Attacks
• Future Generation Computer Systems -- Special Issue on Accountability and Privacy Issues in Blockchain and Cryptocurrency
• Pervasive and Mobile Computing -- Special Issue on Security and Privacy in Mobile Clouds

He is co-chairing the SIG on Fundamentals under IEEE TEMS Technical Committee on Blockchain and Distributed Ledger Technologies (since May '21),
a founding member of IEEE SMC's Blockchain technical committee (since '18),
and a research committee of Hong Kong Blockchain Society (since Sep '19).

Funded Projects (RGC, as PI):

• Decentralizing Cryptosystems, HKD 838K
• Deep Learning with Privacy, HKD 731K
• Password-Hardening Services, HKD 875K
• Sublinear Multi-Writer Searchable Encryption, HKD 700K
• Searchable Encryption: General Framework and Practical Constructions, HKD 693K
• Accountable Privacy in Online Communications, HKD 916K

Non-funded Projects:

• Access Control Encryption: General Framework and Practical Constructions
  (resulted in an S&P 2021 paper and an ACNS 2021 paper)
• Functional Credentials: Theory and Practice
  (resulted in an AsiaCrypt 2018 paper and an ACSAC 2021 paper)

Openings:

• Postdoc or PhD students with strong interest(s) in my research areas
  (Apply for our funded Summer Workshop for HK PhD Fellowship.
  3 participants got PhD offer in our group.)
• I enjoy working with motivated students. My students published in AsiaCrypt, CT-RSA, FC, ITCS, NDSS, PETS, S&P, Usenix Security, etc.
• Impress me with your papers in reputable venues and your own research statement.
• If you are a CUHK (undergrad / master / PhD) student
  and would like to explore cyber security with me, send me an email.

Current PhD Students:

• Jack P. K. Ma, BSc(CUHK)
  (working on Anonymous Credentials, Secure Multi-party Computation)
• Jiafan Wang, BSc(CSU)
  (working on Searchable Encryption, interned at Ant Financial)
• Harry W. H. Wong, BSc(CUHK)
  (working on Lattice-Based Cryptography)
• Huangting Wu, BSc(CUHK)
  (working on Pairing-Based Cryptography)
• Minxin Du, MS(WHU), BS-HongYi(WHU)
  (working on Differential Privacy, internd at Huawei)
• Yu Zheng, BEng(NEU)
• William H. Y. Mui, BSc(PolyU)

Current MPhil Student:

• Donald P. H. Wong, BEng(CUHK)
  (working on Machine Learning)

Current MSc Student:

• Liping Xia

Past Post-Doctoral Research Fellows:

• Yongjun Zhao, PhD, BEng(CUHK)
  (Sep '18 - Sep '19)
• Yu Chen
  (Aug '15 - Jan '16)

Alumni:

• Tao Zhang, PhD, BEng(CUHK), interned at I2R; currently with Tencent
  "Contribution to Structure-Preserving Cryptography and Accountable Privacy"
  (CT-RSA, ESORICS, FC)
• Yongjun Zhao, PhD, BEng(CUHK), visited U. Surrey, now Postdoc at NTU
  "Privacy Enhancing Technologies: New Primitives and New Systems"
  (AsiaCCS->TDSC, FC, PETS, WPES)
• Russell W. F. Lai, RA (Aug '16 - Jul '17), MPhil, BEng+BSc(CUHK)
  "Secure Delegation of Parallel Computation"
  (ACNS, ITCS)
• Raymond K. H. Tai, MPhil, BSc(CUHK)
  "Privacy-Preserving Decision Trees Evaluation Protocols"
  (ESORICS, NDSS)
• Xiuhua Wang, PhD(CUHK); now with HUST
  "Secure and More Practical Access Control Encryption"
  (ACNS, S&P)
• Lucien K. L. Ng, MPhil, BSc-Elite(CUHK)
  "Crypto-/Hardware-Assisted Privacy-Preserving Deep Neural Network Frameworks" (AAAI, Usenix Security)

Mid-Term Visitors:

• Yvo Desmedt (University of Texas at Dallas, and UCL) [talk]
• Russell W. F. Lai (PhD student at FAU) [talks: 1, 2]
• Giulio Malavolta (was a PhD student at FAU, now with MPI-SP) [talk]
• Viktoria Ronge (PhD student at FAU)
• Rong Hu (was a PhD student at Kyushu University)
• Kai-Min Chung (Academia Sinica, TW) [talk]
• Cong Zhang (previously RA at HKU, now postdoc at UMD)

Short-Term Visitors:

• Jonathan Katz (University of Maryland College Park) [talk]
• Florian Kerschbaum (University of Waterloo) [talk]
• Qiang Tang (New Jersey Institute of Technology) [talk]
• Ioannis Demertzis (University of Maryland)
• Peizhao Hu (Rochester Institute of Technology) [talk]
• Ming Li (University of Arizona) [talk]
• Joseph Bonneau (now New York University) [talk]
• Dominique Schroeder (now FAU, Germany) [talk]
• Linfeng Zhou (now with Transparent Systems)
• Anthony T.S. Ho (University of Surrey, UK) [talk]
• Zhen Liu (was with ASTRI, now SJTU)
• Yong Guan (Iowa State University, US) [talk]
• Liqun Chen (HP Labs, now U. Surrey, UK) [talk]
• Brian A. LaMacchia (Microsoft Research Redmond) [talk]

Current Part-Time RA:

• Anna Woo (MIE-Elite)

Past Part-Time RA:

• Erwin Chan (MIE)

Past UG Research Intern:

• Yu Zheng (Northeastern University, China)
  (Mar '18 - May '18, now PhD student)
• Shuyang Tang (Shanghai Jiaotong University)
  (Oct '17 - Feb '18, result: ACISP 2019 Best Student Paper Award)

Past Summer Research Interns:

• Andes Y. L. Kei (FT-Elite)
• Anna P. Y. Woo (MIE-Elite, Best Project Award winner)
• Feng Zhao (CS)
• Yixiang Zhou
• Kelvin K. C. Chan (MIE)
• Jack P. K. Ma (MIE)
• Wenjie Zhao (MIE)
• Jianhan Song (IE, Current PhD student at UT Austin)
• Angela Xuan (MIE)
• Russell W. F. Lai (MATH+IERG, Best Project Award winner)
• Luke Wang (IBBA+IERG)

Past FYP Supervisions: (Selected projects)

• Exploitation and Hacking in Android Games: Jingdong Huang, Yu Wai Wong (Final Year Project Award!)
• Improving Latency of Secure Neural Network Inference: Nash Chow, Peter Wong
• Deep Neural Network in Secure Linux Container with Trusted Processor: Gary Chow, Donald Wong (Final Year Project Award!)
• Secure Machine Learning: Lucien K. L. Ng (Bronze Award of the ASM Technology Award 2018!)
• TLS 0-RTT Key Exchange: Erwin Chan, Lynus Wong
• Permissions-Oriented Android Apps Store: King Ng, Edwin Sin
• Privacy Preserving Machine Learning Classification: Jack Ma, Raymond Tai (published in ESORICS 2017!)

MSc Alumni (with research project supervision):

• 2021: Zheng Yang
• 2019-20: Xiang Li (next: University of Tokyo)
• 2018-19: Qian Chen, Luohong Yang, Yixin Yue
• 2015: Zhenjie Song, Yisong Wu, Rachel Zhu
• 2014: Hua Tong, Muren Zhang
• 2013-14: Teresa Dermawan (co-supervised with C. C. Loy), Weiyi Mao
• 2013: Huirui Han
• 2013: Yingkai Tang
• 2012: Rongbin Li

Upcoming/Recent Papers

• [Usenix Security 2022] Omnes pro uno: Practical Multi-Writer Encrypted Database
• [PETS 2022] Forward and Backward-Secure Range-Searchable Symmetric Encryption
• [ACSAC 2021] Sipster: Settling IOU Privately and Quickly with Smart Meters
• [ACL 2021 (Findings)] Differential Privacy for Text Analytics via Natural Text Sanitization
• [DBSec 2021] Simple Storage-Saving Structure for Volume-Hiding Encrypted Multi-Maps (Best Student Paper Award)

Videos:

• GForce: GPU-Friendly Oblivious and Rapid Neural Network Inference (Usenix Security '21)
• LDSP: Shopping with Cryptocurrency Privately and Quickly under Leadership (ICDCS '21)
• Cross-Domain Access Control Encryption: Arbitrary-Policy, Constant-Size, Efficient (S&P '21 a.k.a. Oakland '21)
• Let's Stride Blindfolded in a Forest: Sublinear Multi-Client Decision Trees Evaluation (NDSS '21)
• Goten: GPU-Outsourcing Trusted Execution of Neural Network Training (AAAI '21)
• Learning Model with Error - Exposing the Hidden Model of BAYHENN (IJCAI '20)
• Multi-Client Oblivious RAM with Poly-Logarithmic Communication (AsiaCrypt '20)
• Let a Non-barking Watchdog Bite: Cliptographic Signatures with an Offline Watchdog (PKC '19, 6-min version)
• Simple Simple Password-Hardened Encryption Services (Usenix Sec. '18)
• Phoenix: Rebirth of a Cryptographic Password-Hardening Service (Usenix Sec. '17)
• Are you The One to Share? Secret Transfer with Access Structure (PETS '17)
• Identity-Based Encryption Resilient to Continual Auxiliary Leakage (EuroCrypt '12)

Freeware:

• Simple Password-Hardened Encryption Services (Usenix Sec. '18, free toolkit)

Recent Invited Talks:

• CUHK x ASTRI Industry Talk Series (Vol. 2)
  (Apr '21, Shatin, Hong Kong)
• 4th CUHK Conference on Financial Technology
  (Nov '20, Shatin, Hong Kong)
• 13th Intl' Conference on Network and System Security
  (Dec '19, Sapporo, Japan)
• Summer Summit on Cryptocurrency and Blockchain Technologies 2019
  (Aug '19, Kowloon, Hong Kong)
• 7th Intl' Workshop on Security in Cloud Computing (SCC)
  (Jul '19, Auckland, New Zealand, also a panelist)
• 22nd Workshop on Elliptic Curve Cryptography
  (Nov '18, Osaka, Japan)
• 1st Intl' Conference on Frontiers in Cyber Security
  (Nov '18, Chengdu, China)
• 14th Intl' Conference on Information Security Practice and Experience
  (Sep '18, Tokyo, Japan)
• 12th Intl' Conference on Network and System Security
  (Aug '18, Hong Kong, short talk + panelist)
• IEEE Intl' Workshop on Blockchain for the Internet of Things,
  (July '18, Halifax, Canada)
• 9th IEEE Intl' Conf. on Cloud Computing Technology and Science
  (Dec '17, Hong Kong, also a panelist)
• Cryptography and Security Frontier Forum
  (Aug '17, State Key Laboratory of Cryptology, Beijing, China)
• 3rd Cyber Security Workshop
  (June '17, Wuhan, China)
• 3rd Intl. Symposium on Mobile Security
  (Dec '16, Seoul, South Korea)
• 2nd IoT Privacy, Trust, and Security
  (May '16, Xi'an, China)
• Next-generation Cryptography
  (Sep '15, IMI, Kyushu University; and ISIT, Japan)
• "Information Security Leading Edge Forum"
  (July '15, Guangzhou University, China)
• Intl. Cryptology and Information Security Conference
  (June '14, Putrajaya, Malaysia)

Upcoming Conferences to "Attend":

• ('22 :) AsiaCCS 2022, ACNS 2022, PETS 2022, Usenix Security 2022, ...

Recent Conferences Attended:

• ('21, still virtually :) IJCAI '20, AAAI, NDSS, Web, S&P, AsiaCCS, ACNS, ICDCS, PETS, DBSec, Usenix Sec., PPML@Crypto, ESORICS, ACSAC, AsiaCrypt, IndoCrypt
• ('20, virtually :) DASFAA, ACNS, AsiaCCS, AsiaCrypt, CANS
• ('19 :) PKC, AsiaCCS (SCC), NSS
• ('18 :) Infocom, AsiaCCS, ESSA 2, IEEE Blockchain, NSS, ISPEC, CCS (WPES), FCS, BlockSEA (@ICDM), ECC, AsiaCrypt
• ('17 :) FC, Cyber Security, ACNS, Usenix Security, CANS, AsiaCrypt, CloudCom
• ('16 :) PKC, AsiaCCS (IoTPTS), SACMAT, ICDCS, TrustCom, IWSEC, SecureComm, ProvSec, Mobile Security (MSEC)
• ('15 :) FC, AsiaCCS (SCC), Infocom, ProvSec, AsiaCrypt
• ('14 :) CT-RSA, Infocom, AsiaCCS, Malaysia Cryptology, ProvSec, ISC, IEEE-CNS, ACM CCS, AsiaCrypt, Inscrypt
• ('13 :) FC, AsiaCCS
• ('12 :) EuroCrypt, ACNS, AsiaCrypt

School-Programs Attended:

• ('18 :) Encryption for Secure Search and other Algorithms 2 (ESSA2)
• ('17 :) Winter School on Cryptocurrency and Blockchain Technologies, Winter School on Blockchain

Teaching:

CSCI/IERG 5590/IEMS 5709 Advanced topics in Blockchain (Spring 2022, Spring 2020, Spring 2019)

DSME 6788 Cyber Security (2nd Trimester, 2021-22; 3rd Trimester, 2020-21, 2019-20; 2nd Trimester, 2018-19)

IERG4150 Introduction to Cryptography (Fall 2021)

IERG 4210 Web Programming and Security (Spring 2021)

ENGG 5383 Applied Cryptography (Fall 2020, Fall 2018, Fall 2017, Fall 2015, Spring 2014, Spring 2013)

IERG 5310 Security & Privacy in Cyber Systems (Fall 2019, Spring 2015)

IERG 4220 Secure Software Engineering (Springer 2018, Spring 2017)

IERG 4130 or ESTR 4306 Intro. to Cyber Security (Fall 2017, Fall 2016, Spring 2016, Fall 2014, Fall 2013)

Some Other Duties:

• U/G Admission Committee
• Curriculum Committee
• Disciplinary Committee
• Graduate Panel
• Member of U/G Summer Research Internship Committee (15-16)
• Faculty representative member of Task Force on Cyber Security
• Department Coordinator, Shaw College
• IT Resources Planning & Facilities Management Committee, Shaw College

Topics in Cryptography:

• Identity-Based Encryption (Wikipedia)
• Attribute-Based Encryption (Wikipedia)
• Cloud storage (Wikipedia)
• Another Look at Provable Security (N. Kobiltz & A. Menezes)

Conferences/Journals in Cryptography:

• Top Cyber Security Conferences Ranking (2020)
• Security Conference Ranking
• Google Scholar Top publications - Computer Security & Cryptography (including journal)

Links:

• Cryptography Reading Group at CUHK-IE
• Centre for Applied Cryptographic Research, U. Waterloo
• CrySP (Cryptography, Security and Privacy) Group, U. Waterloo
• NYU Cryptography Group.