​How to use the dual chip smart card safely?

The dual-chip technology in the field of smart cards is receiving wide attention. Dual Chips Smart Cards core is to allow the security chip responsible for data encryption and the application chip for the expansion of processing functions to operate independently through hardware isolation design, which not only ensures information security, but improves functional flexibility. This split is reshape the application boundaries of smart cards.

The underlying logic of dual-chip architecture

The key to dual-chip design is buliding a physical isolation mechanism. The security chip focuses on core security links such as key generation and identity authentication. It adopts independent encryption algorithms and storage areas. Even if the application chip encounters external attacks, it cannot touch the sensitive data in the security chip. The application chip undertakes diversified functional implementation, such as data interaction, interface adaptation. The two carry out a limited amount of information transmission through preset security channels, which not only avoids security caused by function overlay, but gives full play to their respective performance.

The way of cooperation between security and application

In actual operation, the cooperation of dual chips shows the characteristics of each performs its own duties and complements each other. When the smart card perform payment, authentication and other operations, the security chip is the first to start and complete the encryption confirmation of the user's identity; then the application chip calls the corresponding functional module according to the needs to interact with external devices. In this division of labor model, security is no longer a constraint on function expansion, and application innovation does not need to compromise on security, so that smart cards can be applied in more depth in many fields such as finance, government affairs and the Internet of Things.

With the acceleration of digitalization, the information density and application scenarios carried by smart cards are increasing, and the balance between security and function of a single chip is becoming more and more difficult. The maturity of dual-chip technology provides a feasible solution to this contradiction. It allows smart cards not only to meet financial-level security standards, but also adapt to the diversified needs of access control, transportation, health management, etc., and promote the evolution of smart cards from a single function carrier to a comprehensive intelligent terminal.

Why choose us?

Shenzhen Lex Smart Co.,Ltd. is also actively exploring the application of dual-chip technology. Relying on the accumulation of research and development in the field of smart cards, the company focuses on optimizing the collaborative efficiency of dual chips, and strives to make the application functions of smart cards more suitable for the actual needs of different industries while ensuring security performance, and providing more reliable and flexible smart card solutions for various fields.