paperback. Condition: New. Language:Chinese.Paperback. Pub Date: 2018-08-01 Pages: 208 Publisher: Publishing House textbook-based Renmin University of China Ministry of Education. secondary vocational education in professional skills courses teaching project. mainly on the basic knowledge and practical application of e-commerce security. including details : e-commerce security awareness. awareness of network security. cryptography-based. e-commerce security authentication. digital certificate .