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sqlserver对数据进行加密、解密

程序员文章站 2022-05-15 14:34:38
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– 创建测试表

CREATE TABLE TBLUser 
(    
    Name             nvarchar(30),     
    Password         varbinary(1000)
)

– 创建数据库主**

CREATE master key  ENCRYPTION BY PASSWORD ='aaa@qq.com'

– 创建证书

CREATE CERTIFICATE TestCert with SUBJECT = 'Test Certificate'

– 创建对称**

CREATE SYMMETRIC KEY TestSymmetric WITH ALGORITHM = AES_256
    ENCRYPTION BY CERTIFICATE TestCert 

– 使用对称秘钥加密数据

OPEN SYMMETRIC KEY TestSymmetric DECRYPTION BY CERTIFICATE TestCert;
INSERT INTO TBLUser values('张三', ENCRYPTBYKEY(Key_Guid(N'TestSymmetric'), '123456'));
CLOSE SYMMETRIC KEY TestSymmetric;

– 查看加密后的数据

SELECT * FROM TBLUser

sqlserver对数据进行加密、解密
– 解密数据

OPEN SYMMETRIC KEY TestSymmetric DECRYPTION BY CERTIFICATE TestCert;
SELECT Name, CAST(DecryptByKey(password) as varchar(100)) Password FROM TBLUser;
CLOSE SYMMETRIC KEY TestSymmetric;

sqlserver对数据进行加密、解密

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相关标签: SQL server