Question

CREATE ASYMMETRIC KEY Asym_EPassword  
WITH ALGORITHM = RSA_512 
ENCRYPTION BY PASSWORD = testdemo123

我已使用上述加密非对称密钥加密了我的表格的Password列。

现在我要解密password查询

中的select列

有人可以建议怎么做吗？

Answer 1

SELECT CONVERT(NVARCHAR(100), 
    DecryptByAsymKey(AsymKey_ID('Asym_EPassword'),
    YourColumn, 'testdemo123')) AS PlainText
FROM YourTable;

SQLFiddle不允许用户创建非对称密钥，因此将其复制/粘贴到您自己的SSMS：

CREATE ASYMMETRIC KEY Asym_EPassword
WITH ALGORITHM = RSA_512 
ENCRYPTION BY PASSWORD = 'testDemo123!'

DECLARE @PlainText NVARCHAR(100)
DECLARE @CipherText VARBINARY(MAX)

SET @PlainText = 'AAAAA'
SELECT @CipherText = EncryptByAsymKey(AsymKey_ID('Asym_EPassword'), @PlainText);

SELECT @CipherText;

SELECT CONVERT(NVARCHAR(100), DecryptByAsymKey(AsymKey_ID('Asym_EPassword'), @CipherText, N'testDemo123!'));

在SQL Server查询中解密密码

1 个答案: