server|存储过程|函数|加密|解密

存储过程、存储函数的加密：WITH ENCRYPTION
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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：

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<

begin

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

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

if tr_parent_xtype='V'

begin

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

end

else

begin

set sql1='ALTER TRIGGER 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 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

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<

begin

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

begin

select colid=max(colid) from #temp where

set n=1

while n<

begin

select OrigSpText1=ctext,encrypted=encrypted,status=status FROM #temp  WHERE and

SET OrigSpText3=(SELECT ctext FROM syscomments WHERE id=object_id(objectName) and and )

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 ON '+OBJECT_NAME(parentid)+' WITH ENCRYPTION INSTEAD OF INSERT AS PRINT 1 '

end

else

begin

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

end

end

if type='V'

set OrigSpText2='CREATE VIEW 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