Committed to connecting the world



​​​​ Stepan Davydov
Cryptanalyst, JSRPC “Kryptonite”

Stepan Davydov is a cryptanalyst from JSRPC “Kryptonite”. His r​​esearch topics are block ciphers and cryptographic protocols in 5G. He has proposed the method of constructions differentially 4-uniform permutations for S-boxes. His colleagues and him have found nine vulnerabilities in Solutions, proposed in 3GPP TR 33.846 "Authentication enhancement in 5G System". They have proposed another Solution to mitigate all vulnerabilities in 5G-AKA protocol. 


​Zhiyuan Hu
Director, Security Research, Vivo Mobile Communication Co. Ltd.

Ms. Zhiyuan Hu got her Ph.D. in computer science in 2002. She worked as a security researcher at Nokia Shanghai Bell Co. Ltd. from 2002 to 2021​. Since July 2021, she has worked as Director of Security Research at Vivo Mobile Communication Co. Ltd. Dr. Hu was nominated for Vice-Chair of WP2/SG17 (5G, IoT& ITS security) (2021-present), Co-Rapporteur of Q2/SG17 (Security architecture and network security) (2017-present) and Associate Rapporteur of Q2/SG17 (2015-2016). As the main contributor, she completed to publish about ten ITU-T recommendations. She acted as Chair of OMA (Open Mobile Alliance) security working group (2009-2014) and Vice-Chair of OMA security working group (2007-2008). She completed to publish several OMA specifications. She also acted as Vice-Chair of CCSA (China Communications Standards Association) TC5 WG5 (Wireless communication security) (2008-2021) and completed to publish several CCSA specifications.​
Vinosh Babu James
Engineer, Senior Staff, Qualcomm India

Dr. Vinosh Babu James leads Qualcomm's standardization activities in India. He engages Indian & regional stakeholders on matters related to radio standardization and regulation. Vinosh joined Qualcomm in 2011 and has served in several roles spanning engineering and standardization. He is the convener of the 5G India Forum (5GIF), and a member of the TIG-6G, the Indian 6G flagship program. He holds a Ph.D. in Electrical Engineering from the IIT Madras, with specialization in wireless communication. He is also a senior member of the IEEE. 
Xiongwei Jia
Senior advisor, China Unicom

Xiongwei Jia is a ​senior expert with more than 20 years of experience focusing on the innovation of emerging new technologies and relevant services, such as Internet of Things, smart city, artificial intelligence, blockchain and 5G/6G at China Unicom Research Institute. He is an ICT standard veteran and active in SG13, SG16, SG17 and SG20, and acts as an associate rapporteur of SG20 in recent years. He has led​ more than 30 Recommendations and under-developing studies including ITU-T Y.4051, Y.4115, Y.4455, Y.4464, Y.4470, Y.4473, Y.4560, Y.4811, etc.

​Jonghyun Kim
WP1 Vice-Chair and Q4 Co-Rapporteur, ITU-T Study Group 17, Security | Principal Researcher, Electronics and Telecommunications Research Institute (ETRI)​

Jonghyun Kim began participating in ITU-T SG 17 in 2006 and has actively contributed to the work of SG17 as a core member of security experts for​ more than 15 years. For the Study Period (2022 – 2024), he has served as a WP1 Vice-Chair and Co-Rapporteur of Question 4/17. He was a researcher with the Samsung Electronics in 1995-1998. He joined the Electronics and Telecommunications Research Institute (ETRI) in 2005. His research interests include Cyber Security, Network Forensics, Cloud Security (SecaaS) and 5G/6G Security.​​

​​​​​Ayumu Kubota
Senior Manager, Cyber Security Laboratory, KDDI Research Inc.

Ayumu Kubota received the B.E. and M.E degrees of information engineering from Kyoto University, Japan, in 1993 and 1995, respectively. He joined KDD (now KDDI) in 1995, and has been engaged in the research on IP network and cyber security. He is now leading Cyber Security Laboratory in KDDI Research Inc.

Gyu Myoung Lee
Professor, Liverpool John Moores University (LJMU)​​​

Gyu Myoung Lee is with the Liverpool John Moores University (LJMU), UK, as a Professor from 2014 and with KAIST Institute for IT convergence, Korea, as an Adjunct Professor from 2012. Prior to joining the LJMU, he has worked with the Institut Mines-Telecom, Telecom SudParis, France, from 2008. Until 2012, he had been invited to work with the Electronics and Telecommunications Research Institute (ETRI), Korea. He also worked as a research professor in KAIST, Korea and as a guest researcher in National Institute of Standards and Technology (NIST), USA, in 2007. His research interests include AI powered Internet of things, digital twin, computational trust, trust in data and AI, privacy preserving with blockchain, knowledge centric networking and services, multimedia services, and energy saving technologies. He has been actively working for standardization in ITU-T, IETF and oneM2M, etc. He was the chair of ITU-T Focus Group on data processing and management (FG-DPM) to support IoT and smart cities & communities and currently serves as the WP3 chair in SG13, the Rapporteur of Q16/13 and Q4/20 as well as a vice-chair of FG-AN and FG-AI4A in ITU-T. He is a Senior Member of IEEE. He received his BS degree from Hong Ik University, Seoul, Korea, in 1999 and his MS and PhD degrees from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 2000 and 2007.

​​Jeong Min Lee
Manager, AI BIGDATA Team, Korea Internet and Security Agency (KISA)​

He is AI BIGDATA Security Team Manager of Korea Internet & Security Agency. His main interesting field is Data-Driven Cyber Security using AI Bigdata analysis. He has received his doctoral degree in Computer Science and Engineering from Inha University in Korea.
​​​​​​​​​​​Marja Matinmikko-Blue
Research Director, University of Oulu, Finland​

Marja Matinmikko-Blue is Research Director of the Infotech Oulu Institute and Director of Sustainability & Regulation at 6G Flagship at the University of Oulu, Finland, where she also holds an Adjunct Professor position in spectrum management. She completed her Doctor of Science degree in communications engineering in 2012, and Doctor of Philosophy degree in industrial engineering and management in 2018 at the University of Oulu. She has been conducting multi-disciplinary research into the technical, business, and regulatory aspects of future mobile communication systems in close collaboration with industry, academia, and regulators for over two decades. She has published 180+ scientific papers and prepared 160+ contributions to regulatory bodies.​

​​​​​ Yutaka Miyake
Director, Information and Security Department, 
KDDI Research, Inc.

Dr. Yutaka Miyake has been engaged in the research on high-speed communication protocol and secure communication system at the KDD R&D Laboratories and KDDI Research, Inc. He is currently a director of Information System and Security Department in KDDI Research Inc. He began participating in ITU-T SG 17 in 2005 and has been actively contributing to its activities as information security expert. He is a vice chair of ITU-T SG17, and a chair of WP2/SG17.​

​​Christopher Mulley
Principal Architect​, ZT​E, China
Chris Mulley is a Principal Architect in the CTO Group of ZTE Corporation’s Global Marketing and Solution Sales Department. In the area of Cybersecurity, Chris leads ZTE’s engagement with the GSMA on all 5G security related topics and is an active contributor to a number of the key GSMA Fraud and Security working groups. Chris is also involved in internal ZTE activities for defining and promoting ZTE’s Cybersecurity and 5G security policies and network implementations with customer network operators. Most recently, Chris was heavily involved in ZTE’s successful GSMA NESAS Product Development and Lifecycle Audit. Chris is also responsible for high-level engagements with customer operators in the areas of: 5G Transmission Network, Fixed Access Networks and 5G Core Networks. Chris has been with ZTE for 11 years, prior to which he worked for a number telecom equipment vendors in product development and management roles. In addition, Chris spent 3 years with the UK telecom regulatory authority, Ofcom, where he gained experience in the development of economic regulation and government policy. Chris holds a BEng (Honours) in Electrical and Electronic Engineering from Polytechnic of Central London. He is a member of Institute of Engineering and Technology. 
Suresh Nair
Security Standards Specialist, Nokia Bell Labs | Chair, ​3GPP Security Working Group SA3
Suresh Nair is currently the Chair of 3GPP Security WG, SA3. He is a member of the security standardization team under the Nokia standards group in Nokia. He has over 20 years of experience in the telecommunication industry. His career spans standardization work, wireless research, development and prototyping, product integration etc. In addition to 3GPP he has also represented Nokia and actively contributed to telecommunication standard bodies such as IEEE, WiMAX forum, WFA and OneM2M. Suresh holds masters degrees in Electronics & Telecommunication Engineering and in Applied Physics.
Koji Nakao
NICT, Japan | WP3/17 Chairman 

Koji Nakao received the B.E. degree of Mathematics from Waseda University, in Japan, in 1979. Since joining KDDI in 1979, Koji has been engaged in the research​ on communication protocol, and information security technology for telecommunications in KDDI laboratory. He has started to additionally research on the area of cybersecurity for NICT (National Institute of Information and Communications Technology) in 2004 and for Yokohama N​​ational University in 2015. Since 2000, he has been selected for governmental security research projects in collaboration with ICT-ISAC and involved in International Security Standardization activities. His current positions include "Distinguished Researcher" to manage research activities for cybersecurity technologies in NICT and “Guest Professor” of Yokohama National University on IoT security research. Koji has also been an Advisor of Cybersecurity for CABINET SECRETARIAT in Japanese government (since April 2017) and Executive Advisor of ICT-ISAC Japan (since 2019).The following are the major awards received:  Koji received the IPSJ Research Award in 1992, METI Ministry Award and KPMG Security Award in 2006,  Best Paper Award (JWIS) in 2007, the Commendation for Science and Technology award by the Minister of Education, Culture, Sports, Science and Technology (Prizes for Science and Technology: Research Category) in 2009, Lifetime Achievement Awards in ASIA-JCIS in 2012, and Ministry Award (contributions for cyber security) from the Ministry of Internal Affairs and Communications in 2015. He is also a ​distinguished member of IPJS and a fellow of IEICE.
Kyeong Hee Oh
CEO, TCA services | Q14/17 Co-rapporteur
Ms. Kyeong Hee Oh, the CEO of TCA services and Industry-Academia collaboration professor at Dankook University, is an information security and blockchain professional with 20+ years of experience. She is the Co-rapporteur of ITU-T SG 17 Q14 “Security aspects of distributed ledger technologies,” the project leader of IS 23257 Blockchain and DLT – Reference architecture in ISO TC 307, and the technical board member of IEEE BDL (Blockchain and DLT). She holds a master’s degree in Computer Science from Korea Advanced Institute of Science and Technology. She worked as a researcher at Korea Telecom and the Korea Information Security Agency. She has participated in establishing the evaluation criteria for information security products, the National PKI, ISMS certification scheme, and the first draft of certification criteria for Privacy Information Management Systems in Korea. She had provided consulting services to many organizations, including SKT, LG, Hyundai Mobis, KTNET, and many public/private organizations.
Heung Ryong Oh
ITU-T Study Group 17 Q2 Co-rapporteur | Chief Researcher, Standardization Division, TTA (Telecommunications Technology Association), South Korea

He is working as a researcher for the standardization division of the TTA, Korea from February 2004. He is responsible for domestic standards for information security in TTA. He began participating in ITU-T SG17 in 2004 and has served an associate rapporteur of Q2 from 2009 to 2016, a co-rapporteur of Q2 in ITU-T SG17 since 2017. He received a Bachelor degree in 2002 (Electronics Engineering), a Master degree in 2004, and a Ph.D. degree in 2018, all in Information security from Soonchunhyang University, South Korea.​​

Keundug Park
Professor, AI & Blockchain Research Center, Seoul University of Foreign Studies | Q10/17 Associate Rapporteur | ITU-T JCA-IdM Co-chairman

Dr. Keundug Park is working for Seoul University of Foreign Studies (SUFS) as a professor and he is a director of SUFS AI & Blockchain research center since March 2018. He received PH.D degree in information security. He is a member of 5G security forum in Korea. He developed ITU-T X.1406 (ex X.​stov), security threats to online voting system using distributed ledger technology in ITU-T Q14/17 and has developed ITU-T X.srdidm, security requirements for decentralized identity management systems using distributed ledger technology in ITU-T Q10/17. He is an Associate Rapporteur of ITU-T Q10/17 and a co-chairman of ITU-T JCA-IdM (Joint Coordination Activity for Identity Management).​​
Anand Prasad
Partner, Deloitte Tohmatsu Cyber LLC | Former Chairman of 3GPP SA3

Anand is Partner at Deloitte Tohmatsu Cyber for connectivity security and leads emerging technology unit. He is Board of Director at Digital Nasional Berhad. Prior to that, among others, he was Founder & CEO of wenovator, acquired by DTCY, advisor to NTT DOCOMO and CISO, board member, of Rakuten Mobile. Anand led the standardisation of 5G security as Chairman of 3GPP SA3. He is advisor to several organizations, an innovator with 50+ patents, a recognized keynote speaker and a prolific writer with 6 books and 50+ publications. He is a Fellow of IET & IETE, Editor of Cyber Security Magazine & Editor-in-Chief Journal of ICT Standardization by River Publishers.
​​​​Ke Wang
Project Manager, China Mobile Research Institute
Ke Wang is a project manager at China Mobile Research Institute. She focuses on research and standardization on 5G security, blockchain and other fields in ITU-T/3GPP/NGMN. She contributes as ITU-T SG17 Q14 associate rapporteur and editor since 2017. 
​​Zhili Wang
Ph D, Associate Professor, Beijing University of Posts and Telecommunications, China | ITU-T Study Group 2

Wang Zhili, Ph D, is an associate professor in Beijing University of Posts and Telecommunications, China. He is engaged in scientific, technology, and standardization research work in communication networks and computers science. His main research directions are network management, communications software, and interface testing, and he has ever won the National Science and Technology Progress Awards in China once. He has been served as the Working Party 2 Chairman and Question 7 Rapporteur for ITU-T Study Group 2 since 2013. He is experienced in network management standardization, and has lead the development of more than 20 ITU-T Recommendations in network management domain.​
​​Junzhi Yan
Senior researcher, China Mobile Research Institute

Junzhi Yan has worked as a technical specialist at China Mobile Research Institute for more than 10 years. His research experience includes telecommunication network security, IoT security, DLT security and services. It also covers the usage of upcoming technologies (such as quantum computing, PQC) in telecommunication networks. He has worked in standard developing organizations including ITU-T, GSMA, 3GPP and CCSA (China Communications Standards Association). Now he is the Co-rapporteur of ITU-T SG17 Q6 and the chief editor of X.1811, X.1046, X.1379(ex X.rsu-sec), X.1409(ex​
Hongmei Yang
Deputy Chief Engineer, Institute of Security, China Academy of Information and Communications (CAICT)

Hongmei Yang is the deputy chief engineer at the Institute of Security of the China Academy of Information and Communication (CAICT), a senior engineer, chairman of CCSA TC5 WG5, chairman of the 5G security group of IMT-2020 (5G) Promotion Group, and leader of the 5G security group of CAICT. She focuses on research and standardization of mobile communication networks and security. She has written academic works  "Evolving Packet System (EPS) application technology" and "Network security in the 5G era".
Xiaoya Yang
ITU-T Study Group 17 Counselor

Xiaoya Yang serves as the Counselor of ITU-T Study Group 17 ‘security’ since 2017. With 20+ years of professional experience in telecommunication regulation, legislation and international standardization and coordination, she was the Head of the WTSA Programmes Division in the Telecommunication Standardization Bureau of the International Telecommunication Union (ITU-TSB) from 2010 to 2016, Co-counsellor of ITU-T Study Group 2 on 'Operational aspects of service provision and telecommunications management' and Study Group 3 on 'Tariff and accounting principles including related telecommunication economic and policy issues' from 2009 to 2010; Counselor of ITU-T Study Group 17 on 'Telecommunication security' from 2007 to 2008; and Workshop Project Coordinator from 2004 to 2006. Before joining ITU, she worked in the Ministry of Information Industry of China from 1998 to 2004. There she was the Division Director responsible for regulation of Internet and information security. From 1997 to 1998 she worked in China Telecom as a network engineer and service manager in their Internet service department. She has a M.S. in Computer Science from Tsinghua University, China and a MBA from Polytechnic University, Hong Kong.
Mika Ylianttila
Associate professor (tenure track), Network security, CWC-Networks and Systems, Faculty of Information Technology and Electrical Engineering, University of Oulu

Mika Ylianttila (M. Sc, Dr.Sc, eMBA) is a full-time associate professor (tenure track) at the Centre for Wireless Communications - Networks and Systems research unit, at the Faculty of Information Technology and Electrical Engineering (ITEE), University of Oulu, Finland. He is the director of Communications Engineering Doctoral Degree Program and he leads NetSEC (Network security, trust and privacy) research group which studies and develops secure, scalable and resource-efficient techniques for 5G and beyond 5G and IoT systems. He has co-authored more than 200 international peer-reviewed articles. He is a Senior Member of IEEE and associate editor in IEEE Transactions on Information Forensics and Security​.
Heung Youl Youm
Chairman, ITU-T Study Group 17, Security | Professor, Department of Information Security Engineering, Soonchunhyang University​, South Korea​

He is Chairman of ITU-T SG17 (Security). He is working as a professor for the Department of Information Security Engineering of the Soonchunhya​ng University, Korea from September 1990. He is currently the Director of SCH Cybersecurity Research Centre from Dec. 2013. He began participating in ITU-T SG 17 in 2003 and has actively contributed to the work of SG17 as a core member of security experts. He was an associate Rapporteur of SG 17 Question 10/17 from 2003 to 2004. For the Study Period (2005 – 2008), he served as a Rapporteur of Q​uestion 9/17. He was a Vice Chairman of ITU-T Study Group 17 from 2009 to 2016. He was a Chairman of Working Party 2 (Application Security) of SG17 for the Study Period (2009–2012) and was a Chairman of Working Party 3 (Identity management and cloud computing security) of SG17 for the Study Period (2013–2016). He has been a Project Editor for many approved ITU-T Recommendations or agreed Supplements in DLT security, authentication/application protocols, de-identification techniques, USN/IoT security, 5G security, and cybersecurity. He is a Commissioner for the Korea Personal Information Protection Commission, a member of advisory committee for the Korea national security office for the Blue House, a Chairman for the ISMS/PIMS certification committee in Korea since 2007, and a Board director for Korea Information/Security agency. He was a president of KIISC (Korea Institute on information security and cryptology) in 2011 and is an emeritus president of KIISC. He had worked for ETRI as a senior research engineer from 1982 to 1990. He had been involved in developing high speed transmission system. He had been involved in many (advisory or self-performance evaluation) committees for the Korea Communications Commission (KCC) from 2008 to 2016, the Ministry of Science, ICT and Future Planning (MSIP) from 2013 to 2017, the Ministry of Industry and Energy (MoTIE) from 2015 to 2017. He had been involved in self-performance evaluation) committees for the Ministry of Science and ICT since 2017. He had been the chairman for the committee on information security in the PyeongChang Organizing Committee for the 2018 Olympic & Paralympic Winter Games from January 2015 to May 2018. He received a Bachelor degree in 1981, a Master degree in 1983, and a Ph.D. degree in 1990, all in Electronics Engineering from Hanyang University, Korea.​​​​​
Fanqin Zhou
Beijing University of Posts and Telecommunications (BUPT), China | ITU-T Study Group 2 

Fanqin ZHOU, Ph.D., a lecturer with the State Key Laboratory of Networking and Switching Technology, BUPT. His research interests mainly focus on network intelligent management in B5G/6G networks, industrial wireless networks, computing power networks, etc. He published more than 50 SCI/EI indexed papers in journals and conferences such as IEEE TII\WCM\IoT Journal\WCL\ICC\GC and obtained 3 China national patent authorizations. He received the Annual Best Paper Award from the IEEE BTS Society and Science and Technology Progress Award from the China Electrotechnical Society.