Abstract:

At present, various types of illegal and criminal activities occur frequently with the use of false seals, it has caused huge economic losses and serious social harm, and how to effectively implement anti-counterfeiting of seal has become an important problem to be solved. Based on the analysis of the traditional anti-counterfeiting technology of seal and new anti-counterfeiting technology solution, this paper proposes an anti-counterfeiting method of seal based on domestic cryptography algorithm, and introduces the whole lifecycle management framework of seal based on domestic cryptography algorithm, key management system, chip seal issuance and verification process. It also analyzes the safety of its cryptography algorithm, business process and information. The method constructs an integrated security chain between the components of the system in chip seal issuance and verification process. It ensures the credibility of the participants and guarantees the security of the whole process of seal information storage, processing and transmission, which improves the efficiency of chip seal issuance and verification process. It can be widely applied to the large-scale issuance and mutual recognition of chip seals, realizing secure and convenient identification of chip seals.

Key words: domestic cryptography algorithm, anti-counterfeiting of seal, chip seal, key management, seal issuance and verification