SQL Server加密存储过程的破解问题(1)

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 '