这里重点说一下SHA1算法的实现步骤与代码,由于本人水平有限,不过多讨论SHA1的数学原理以及应用场景。
SHA1简介 In cryptography, SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function which takes an input and produces a 160-bit (20…
创建数据表grade:
CREATE TABLE grade( id INT NOT NULL, sex CHAR(1), firstname VARCHAR(20) NOT NULL, lastname VARCHAR(20) NOT NULL, english FLOAT, math FLOAT, chinese FLOAT );
向数据表grade中插入几条数据:
…