如何利用MySQL数据库自带加密函数进行加密

2025-03-15 09:52:06
推荐回答(1个)
回答1:

保护些数据免受黑客或者窥探者获取令关注重要问题您既能让未经授权员使用或者破坏应用程序同要保证您竞争优势幸运MySQL带设计用提供种类型安全加密函数本文概述其些函数并说明何使用及能够提供同级别安全双向加密让我简单加密始:双向加密段数据通密钥加密能够由知道密钥解密mysql两函数支持种类型加密别叫做ENCODE()DECODE()面简单实例:mysql> INSERT INTO users (username, password) VALUES ('joe', ENCODE('guessme', 'abracadabra'));
Query OK, 1 row affected (0.14 sec)其Joe密码guessme通密钥abracadabra加密要注意加密完结二进制字符串所示:mysql> SELECT * FROM users WHERE username='joe';
+----------+----------+
| username | password |
+----------+----------+
| joe | 03?i?!? |
+----------+----------+
1 row in set (0.02 sec)abracadabra密钥于恢复原始字符串至关重要密钥必须传递给DECODE()函数获原始、未加密密码面使用:mysql> SELECT DECODE(password, 'abracadabra') FROM users WHERE username='joe';+---------------------------------+
| DECODE(password, 'abracadabra') |
+---------------------------------+
| guessme |
$query = "SELECT COUNT(*) FROM users WHERE username='$inputUser' AND DECODE(password, 'abracadabra') = '$inputPass'";?>提示:虽ENCODE()DECODE()两函数能够满足数要求候您希望使用强度更高加密手段

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