SQL2005 des加密算法存储过程

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xxxxxxxxxx

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CREATE SYMMETRIC KEY key1 WITH ALGORITHM=DES

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    ENCRYPTION BY PASSWORD='abc$123'

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GO

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​

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OPEN SYMMETRIC KEY key1    

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    DECRYPTION BY PASSWORD='abc$123'

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​

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DECLARE @str NVARCHAR(100),@Encrypted VARBINARY(MAX)

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SET @str=N'要加密的字串'    

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SELECT @Encrypted=ENCRYPTBYKEY(KEY_GUID('key1'),@str)

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SELEcT '加密'=@Encrypted ,'解密'=CAST(DECRYPTBYKEY(@Encrypted) AS NVARCHAR(100))

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CLOSE SYMMETRIC KEY key1

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GO

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DROP SYMMETRIC KEY key1

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GO