散列算法，用于生成原始消息的数字指纹，本算发基于MATLAB编写，本算法包含多种流行的散列算法，包括SHA1和SHA-256等广泛应用的散列算法，通过本程序，可以对几种广泛应用的散列算法进行调用-Hash algorithm used to generate the digital fingerprint of the original message, this is based on MATLAB, this algorithm contains a variety of popular hash algorithm, including SHA1 and SHA- 256 hash algorithm is widely used, through this program, several widely used hash algorithms can be invoked