Research And Implementation Of A Security Identity Authentication Chip

Nowadays with the rapid development of the internet and the widespread use of mobile terminal devices, people pay more attention to the problem of information security. As the first pass protection of network assets, identity authentication has important significance for the security of information system. Therefore, the identity authentication system, especially the password chip, often becomes the target of different kinds of attack like non-destructive attacks which includes Side Channel Attacks, and Error Injection Attacks and destructive attacks which includes Reverse Engineering attacks and micro-probing attacks, etc.Because of this, a security authentication chip is designed and a system structure of safety authentication chip is proposed. In this paper, the safety of the chip is proved, and the design and realization of encryption kernel based on AES has also been completed by using various kinds of measures for safety protection against attack. Power balance technology based on random clock can disturb the clock and make the power consumption detected by external smooth, therefore resisting the commonly Side Channel Attacks; Silicon Physical Unclonable Functions based on delay cell mainly utilizes the inevitable differences in chip manufacturing process to solve the problem of sensitive information storage, and they can use a protective metal meshes to resist physical anatomy; The one-time password authentication technology can effectively improve the security of authentication by adding uncertainty.This chip is designed by the standard design flow of ASIC using HJTC 0.18?m. It has 36000 logic gates and the average power dissipation is 1.8mW with 3.3V supply voltage. This chip is implemented in FOUNDRY and then sent to the Gansu Tianshui company for package, the package is SSOP20L(0.65-D1.5). Moreover, the test platform based on ATmega1280 single chip microcomputer is built to test the samples. The measured results of samples test verify that the chip has achieved the expected demand, with its high security identity authentication scheme, application is more extensive.