SAFE COMMUNICATION METHOD AND DEVICE FOR MOBILE FINANCIAL SERVICE BASED ON APPLICATION LAYER

摘要

A safe communication method and device for a mobile financial service based on the application layer. According to this invention, the number of interactive messages is reduced, and the processing performance requirements of the mobile terminal are low. As the invention utilizes a message abstract digital signature based on an asymmetric secret key, the integrity of exchanged information is ensured while traceability requirements are satisfied. The digital envelope technology based on an asymmetric secret key also ensures the privacy of information exchanged. Strand space theory proves that the safety of the embodiment of this invention can be ensured.