Based On The Dedicated Usb Interface Of The Fpga & Asic Design And Implementation

With the development of network security technology, people require better performance and speed of security products. To increase the speed of security products, we can adopt chips, parallel processing and formicate technology. Chip technology includes ASIC&FPGA. ASIC&FPGA can also be understood as implementing security products on chips and this can improve the speed of security products. At the same time, the chips have small scale, less weight, low power cost and better reliability.If ASIC&FPGA are used only for cryptographic algorithms but not interfaces, the whole speed of security products will decline. On the other side, the method integrating cryptographic algorithms processors and interfaces has many advantages, whether in cubage and power or in cost and reliability. This requires us to use Hardware Description Language (HDL) for interface' s implementation. In this way, we can integrate the interface and the cryptographic algorithms in HDL.Identification technique based on USB KEY is a convenient, secure and economical identification method. Single-chip or smart-card chip placed inside USB KEY is used to store the cryptographic keys and digital certificates, And the chip inside USB KEY can generate new cryptographic keys and implement cryptographic operations such as encryption, decryption and so on. Cryptographic algorithms are adopted to identify the users with various privileges. USB KEYs can be used in current personal computers without special requirements.With many advantages in security, cost and convenience, identification by USB KEY has become one of the prevalent identification modes. In the future identification techniques will be improved by combining several techniques. USB KEY will be one of the most important identification devices and the speed of USB KEY will be increased.