Question

我确定这会平庸，但我无法弄清楚！

我有一个用户表：

CREATE TABLE tbl_users (
  usr_id        INT NOT NULL AUTO_INCREMENT ,
  usr_name      VARCHAR( 64 ) NOT NULL DEFAULT '' ,
  usr_surname   VARCHAR( 64 ) NOT NULL DEFAULT '' ,
  usr_pwd       BLOB NOT NULL ,
  usr_level     INT( 1 ) NOT NULL DEFAULT 0,
  PRIMARY KEY ( usr_id )
) ENGINE = InnoDB;

有一条记录：

INSERT INTO tbl_users ( usr_id, usr_name, usr_pwd, usr_level )
VALUES (NULL, 'SU', AES_ENCRYPT('SU', SHA2('MyPwd', 512)), 2);

现在，如果我运行此查询（在phpMyAdmin中），我会得到我的记录：

SELECT usr_id, usr_name, usr_surname, usr_level, 
       AES_DECRYPT(usr_pwd, SHA2('MyPwd', 512)) as usr_pwd
FROM tbl_users 
WHERE usr_name='SU';

但如果我添加密码检查，我会得到一个空的结果集：

SELECT usr_id, usr_name, usr_surname, usr_level, 
       AES_DECRYPT(usr_pwd, SHA2('MyPwd', 512)) as usr_pwd
FROM tbl_users 
WHERE usr_name='SU' and usr_pwd='SU';

哪里错了？

MySQL AES_DECRYPT密码与普通密码不匹配

0 个答案: