·您的位置: 首页 » 资源教程 » 编程开发 » 数据库 » SQL SERVER存储过程、存储函数的加密、解密

SQL SERVER存储过程、存储函数的加密、解密

类别: 数据库教程  评论数:0 总得分:0
存储过程、存储函数的加密:WITH ENCRYPTION
<!--[if !supportLineBreakNewLine]-->
<!--[endif]-->

CREATE procedure dbo.sp_XML_main

@table_name nvarchar(260)=\'\',

@dirname nvarchar(20)=\'\'

WITH ENCRYPTION

as

begin

....................................................

end

go




存储过程、存储函数的解密(以下是一位绝世高人编写的代码)

if exists (select * from dbo.sysobjects where id = object_id(N\'[dbo].[sp_decrypt]\') and OBJECTPROPERTY(id, N\'IsProcedure\') = 1)

drop procedure [dbo].[sp_decrypt]

GO



/*--破解函数,过程,触发器,视图.仅限于SQLSERVER2000



--作者:J9988--*/

/*--调用示例



--解密指定存储过程

exec sp_decrypt \'AppSP_test\'



--对所有的存储过程解密

declare tb cursor for

select name from sysobjects where xtype=\'P\' and status>0 and name<>\'sp_decrypt\'



declare @name sysname

open tb

fetch next from tb into @name

while @@fetch_status=0

begin

print \'/*-------存储过程 [\'+@name+\'] -----------*/\'

exec sp_decrypt @name

fetch next from tb into @name

end

close tb

deallocate tb

--*/



if exists (select * from dbo.sysobjects where id = object_id(N\'[dbo].[SP_DECRYPT]\') and OBJECTPROPERTY(id, N\'IsProcedure\') = 1)

drop procedure [dbo].[SP_DECRYPT]

GO



CREATE PROCEDURE sp_decrypt(@objectName varchar(50))

AS

begin

set nocount on

--CSDN:j9988 copyright:2004.04.15

--V3.1

--破解字节不受限制,适用于SQLSERVER2000存储过程,函数,视图,触发器

--修正上一版视图触发器不能正确解密错误

--发现有错,请E_MAIL:CSDNj9988@tom.com

begin tran

declare @objectname1 varchar(100),@orgvarbin varbinary(8000)

declare @sql1 nvarchar(4000),@sql2 varchar(8000),@sql3 nvarchar(4000),@sql4 nvarchar(4000)

DECLARE @OrigSpText1 nvarchar(4000), @OrigSpText2 nvarchar(4000) , @OrigSpText3 nvarchar(4000), @resultsp nvarchar(4000)

declare @i int,@status int,@type varchar(10),@parentid int

declare @colid int,@n int,@q int,@j int,@k int,@encrypted int,@number int

select @type=xtype,@parentid=parent_obj from sysobjects where id=object_id(@ObjectName)



create table #temp(number int,colid int,ctext varbinary(8000),encrypted int,status int)

insert #temp SELECT number,colid,ctext,encrypted,status FROM syscomments WHERE id = object_id(@objectName)

select @number=max(number) from #temp

set @k=0



while @k<=@number

begin

if exists(select 1 from syscomments where id=object_id(@objectname) and number=@k)

begin

if @type=\'P\'

set @sql1=(case when @number>1 then \'ALTER PROCEDURE \'+ @objectName +\';\'+rtrim(@k)+\' WITH ENCRYPTION AS \'

else \'ALTER PROCEDURE \'+ @objectName+\' WITH ENCRYPTION AS \'

end)



if @type=\'TR\'

begin

declare @parent_obj varchar(255),@tr_parent_xtype varchar(10)

select @parent_obj=parent_obj from sysobjects where id=object_id(@objectName)

select @tr_parent_xtype=xtype from sysobjects where id=@parent_obj

if @tr_parent_xtype=\'V\'

begin

set @sql1=\'ALTER TRIGGER \'+@objectname+\' ON \'+OBJECT_NAME(@parentid)+\' WITH ENCRYPTION INSTERD OF INSERT AS PRINT 1 \'

end

else

begin

set @sql1=\'ALTER TRIGGER \'+@objectname+\' ON \'+OBJECT_NAME(@parentid)+\' WITH ENCRYPTION FOR INSERT AS PRINT 1 \'

end



end

if @type=\'FN\' or @type=\'TF\' or @type=\'IF\'

set @sql1=(case @type when \'TF\' then

\'ALTER FUNCTION \'+ @objectName+\'(@a char(1)) returns @b table(a varchar(10)) with encryption as begin insert @b select @a return end \'

when \'FN\' then

\'ALTER FUNCTION \'+ @objectName+\'(@a char(1)) returns char(1) with encryption as begin return @a end\'

when \'IF\' then

\'ALTER FUNCTION \'+ @objectName+\'(@a char(1)) returns table with encryption as return select @a as a\'

end)



if @type=\'V\'

set @sql1=\'ALTER VIEW \'+@objectname+\' WITH ENCRYPTION AS SELECT 1 as f\'



set @q=len(@sql1)

set @sql1=@sql1+REPLICATE(\'-\',4000-@q)

select @sql2=REPLICATE(\'-\',8000)

set @sql3=\'exec(@sql1\'

select @colid=max(colid) from #temp where number=@k

set @n=1

while @n<=CEILING(1.0*(@colid-1)/2) and len(@sQL3)<=3996

begin

set @sql3=@sql3+\'+@\'

set @n=@n+1

end

set @sql3=@sql3+\')\'

exec sp_executesql @sql3,N\'@sql1 nvarchar(4000),@ varchar(8000)\',@sql1=@sql1,@=@sql2



end

set @k=@k+1

end



set @k=0

while @k<=@number

begin



if exists(select 1 from syscomments where id=object_id(@objectname) and number=@k)

begin

select @colid=max(colid) from #temp where number=@k

set @n=1



while @n<=@colid

begin

select @OrigSpText1=ctext,@encrypted=encrypted,@status=status FROM #temp WHERE colid=@n and number=@k



SET @OrigSpText3=(SELECT ctext FROM syscomments WHERE id=object_id(@objectName) and colid=@n and number=@k)

if @n=1

begin

if @type=\'P\'

SET @OrigSpText2=(case when @number>1 then \'CREATE PROCEDURE \'+ @objectName +\';\'+rtrim(@k)+\' WITH ENCRYPTION AS \'

else \'CREATE PROCEDURE \'+ @objectName +\' WITH ENCRYPTION AS \'

end)





if @type=\'FN\' or @type=\'TF\' or @type=\'IF\'

SET @OrigSpText2=(case @type when \'TF\' then

\'CREATE FUNCTION \'+ @objectName+\'(@a char(1)) returns @b table(a varchar(10)) with encryption as begin insert @b select @a return end \'

when \'FN\' then

\'CREATE FUNCTION \'+ @objectName+\'(@a char(1)) returns char(1) with encryption as begin return @a end\'

when \'IF\' then

\'CREATE FUNCTION \'+ @objectName+\'(@a char(1)) returns table with encryption as return select @a as a\'

end)



if @type=\'TR\'

begin



if @tr_parent_xtype=\'V\'

begin

set @OrigSpText2=\'CREATE TRIGGER \'+@objectname+\' ON \'+OBJECT_NAME(@parentid)+\' WITH ENCRYPTION INSTEAD OF INSERT AS PRINT 1 \'

end

else

begin

set @OrigSpText2=\'CREATE TRIGGER \'+@objectname+\' ON \'+OBJECT_NAME(@parentid)+\' WITH ENCRYPTION FOR INSERT AS PRINT 1 \'

end



end



if @type=\'V\'

set @OrigSpText2=\'CREATE VIEW \'+@objectname+\' WITH ENCRYPTION AS SELECT 1 as f\'



set @q=4000-len(@OrigSpText2)

set @OrigSpText2=@OrigSpText2+REPLICATE(\'-\',@q)

end

else

begin

SET @OrigSpText2=REPLICATE(\'-\', 4000)

end

SET @i=1



SET @resultsp = replicate(N\'A\', (datalength(@OrigSpText1) / 2))



WHILE @i<=datalength(@OrigSpText1)/2

BEGIN



SET @resultsp = stuff(@resultsp, @i, 1, NCHAR(UNICODE(substring(@OrigSpText1, @i, 1)) ^

(UNICODE(substring(@OrigSpText2, @i, 1)) ^

UNICODE(substring(@OrigSpText3, @i, 1)))))

SET @i=@i+1

END

set @orgvarbin=cast(@OrigSpText1 as varbinary(8000))

set @resultsp=(case when @encrypted=1

then @resultsp

else convert(nvarchar(4000),case when @status&2=2 then uncompress(@orgvarbin) else @orgvarbin end)

end)

print @resultsp



set @n=@n+1

end



end

set @k=@k+1

end



drop table #temp

rollback tran

end
-= 资 源 教 程 =-
文 章 搜 索
关键词:
类型:
范围:
纯粹空间 softpure.com
Copyright © 2006-2008 暖阳制作 版权所有
QQ: 15242663 (拒绝闲聊)  Email: faisun@sina.com
 纯粹空间 - 韩国酷站|酷站欣赏|教程大全|资源下载|免费博客|美女壁纸|设计素材|技术论坛   Valid XHTML 1.0 Transitional
百度搜索 谷歌搜索 Alexa搜索 | 粤ICP备19116064号-1