Nguyen Dao Truong
1
*
, Le Van Tuan
2
, Doan Thi Bich Ngoc
3
, Dang Duc Trinh
4
1
Academy of Cryptography Techniques
2
Military Technical Academy
3
University of Information and Communication Technology, Thai Nguyen University
4
Department of Information-Mathematics, Vietnam Military Medical University
*
Corresponding Author