Sha256 Algorithm. The SHA hash functions are a set of cryptographic hash functions designed by the National Security Agency (NSA) and published by the NIST as a U.S. Federal Information Processing Standard. SHA stands for Secure Hash Algorithm

JAVA计算器，NETBEANS开发。算法较容易理解。功能简单实用，适合初学者研究。-JAVA calculator, NETBEANS development. Algorithm easier to understand. Function is simple and practical study for beginners.