The Decentralized Cryptography Research Group, abbreviated as Decentralized Crypt or DC, is a strong cryptographic research group at the Vietnam National University, Ho Chi Minh City – VNU-HCMC. Decentralized Crypt brings together mathematical and cryptographic researchers working at universities at home and abroad. The Decentralized Crypt's primary goal is to design innovative cryptographic tools and develop cryptographic systems that guarantee practical privacy and post-quantum security.

Study topic

  • Random numbers, zero-knowledge, group signatures, verification and privacy-assured data mining, and cryptographic currencies..


  • Nguyen Dinh Thuc, VNU-HCMC, team leader
  • Nguyen Ta Toan Khoa, NTU, Singapore, co-leader
  • Dang Hai Van, British
  • Tran Viet Xuan Phuong, Australia
  • Nguyen Tan Trung, VNU-HCMC
  • Nguyen Thanh Binh, VNU-HCMC
  • Tran Ngoc Bao, HCMUE
  • Tran Trung Dung, VNU-HCMC
  • Pham Thi Bach Hue, VNU-HCMC
  • Tran Minh Triet, VNU-HCMC
  • Tran Dinh Long, Hue University of Science
  • Tran Dan Thu, VNU-HCMC
  • Hoang Minh Thang, USA
  • Nguyen Nhu Huan, USA
  • Nguyen Phuong Ha, USA


  • Hotspot Security, Department of Science and Technology of Ho Chi Minh City. Ho Chi Minh City, 2011.
  • Design and Installation of Cryptographic IP Cores on FPGA, KC01, 2012.
  • Detective RSA, Department of Science and Technology City. Ho Chi Minh City, 2015.
  • Constant, Cryptocurrency Industry Project, 2019.

Scientific article

  • Thang Hoang, Deokjai Choi, and Thuc D. Nguyen, Gait Authentication on Mobile Phone Using Biometric Cryptosystem and Fuzzy Commitment Scheme. IJIS, 2015.
  • Van H. Dang and Thuc D. Nguyen, Construction of Pseudoinverse Matrix over Finite Field and Its Application. Wireless Pers Commum., 2015.
  • Long D. Tran, Thu D. Tran, Deokjai Choi, and Thuc D. Nguyen, RSA-type Algebra Structures, KSII Transaction on Internet and Information Systems, 2016.
  • San Ling, Khoa Nguyen, Adeline Roux-Langlois, Huaxiong Wang, A Lattice-based Group Signature Scheme with Verifier-local Revocation. Theoretical Computer Science, Vol.2, 2018.
  • Benoit Liert, San Ling, Khoa Nguyen, Huaxiong Wang. Lattice-based Zero-knowledge Arguments for Integer Relation, CRYPTO 2018, Springer, 2018.
  • Toan-Thinh Truong, Minh-Triet Tran, Anh-Duc Duong, and Isao Echizen, Provable Identity Based User Authentication Scheme on ECC in Multi-server Environment, Wireless Pers Commum., 2017.