server|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:CSDNj9988tom.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
