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介绍一种基于PIC16C54单片机及93C46串行EEPROM智能型软件狗的硬件和软件设计。本软件狗利用微控制器的特点,利用简化的DES算法进行加密,增加了软件狗的破解难度。
A hardware and software design based on PIC16C54 microcontroller and 93C46 serial EEPROM intelligent software dog is introduced. This software dog uses the characteristic of the microcontroller, uses the simplified DES algorithm to carry on the encryption, has increased the difficulty of solving the software dog.