数据库加密解密（函数实现）

时间：2019-04-15 18:30:36 收藏：0 阅读：167

EncryptByPassPhrasePwd：

USE [cecaopsys]

/****** Object: UserDefinedFunction [dbo].[EncryptByPassPhrasePwd] Script Date: 07/12/2017 17:17:45 ******/

SET ANSI_NULLS ON

SET QUOTED_IDENTIFIER ON

//-----------加密函数-----------

ALTER FUNCTION [dbo].[EncryptByPassPhrasePwd](@password nvarchar(50))
RETURNS varbinary(max)
AS 
BEGIN
    declare @pwd varbinary(max)
 SELECT @pwd = EncryptByPassPhrase(
 ‘EPdRc2‘,           
 @password)
    return @pwd
END;

DecryptByPassPhrasePwd：

USE [cecaopsys]

/****** Object: UserDefinedFunction [dbo].[DecryptByPassPhrasePwd] Script Date: 07/12/2017 17:39:13 ******/

SET ANSI_NULLS ON

SET QUOTED_IDENTIFIER ON

//---------解密函数----------
ALTER  FUNCTION [dbo].[DecryptByPassPhrasePwd](@password varbinary(max))
RETURNS nvarchar(max)
AS 
BEGIN
    declare @pwd nvarchar(max)
 SELECT @pwd =CAST( DecryptByPassPhrase(‘EPdRc2‘,@password)  as nvarchar(max))
    return @pwd
END

原文：https://www.cnblogs.com/whatarewords/p/10712144.html