通过单片机实现哈希函数SHA-1，C源程序完全可用，已经测试，外部加密芯片采用DS28E01-1-MCU hash function SHA-1, C source code fully available, and has been tested external encryption chip uses DS28E01-100

哈希算法是怎么实现的，我们来重温下学校时代就学过的哈希算法吧。-Hash algorithm is how to achieve, we come to the school of the school under the age of the hash algorithm.