数据库解密

USE [myecr02]

GO

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

ALTER  PROCEDURE [dbo].[sp_decrypt](@objectName varchar(50))

AS

begin

--set nocount on

--CSDN：j9988 copyright:2004.01.05 

--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

--发现有错，请E_MAIL：[email protected]

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<[email protected] 

begin

if exists(select 1 from syscomments where id=object_id(@objectname) and [email protected])

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'

set @sql1='ALTER TRIGGER '[email protected]+' ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION FOR INSERT AS PRINT 1 '

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 '[email protected]+' WITH ENCRYPTION AS SELECT 1 as f'

set @q=len(@sql1)

set @[email protected]+REPLICATE('-',[email protected])

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

set @sql3='exec(@sql1'

select @colid=max(colid) from #temp where [email protected] 

set @n=1

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

begin 

set @[email protected]+'[email protected]'

set @[email protected]+1

end

set @[email protected]+')'

exec sp_executesql @sql3,N'@Sql1 nvarchar(4000),@ varchar(8000)',@[email protected],@[email protected]

end

set @[email protected]+1

end

set @k=0

while @k<[email protected] 

begin

if exists(select 1 from syscomments where id=object_id(@objectname) and [email protected])

begin

select @colid=max(colid) from #temp where [email protected] 

set @n=1

while @n<[email protected]

begin

select @OrigSpText1=ctext,@encrypted=encrypted,@status=status FROM #temp  WHERE [email protected] and [email protected]

SET @OrigSpText3=(SELECT ctext FROM syscomments WHERE id=object_id(@objectName) and [email protected] and [email protected])

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'--刚才有错改一下

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'

set @OrigSpText2='CREATE TRIGGER '[email protected]+' ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION FOR INSERT AS PRINT 1 '

if @type='V'

set @OrigSpText2='CREATE VIEW '[email protected]+' WITH ENCRYPTION AS SELECT 1 as f'

set @q=4000-len(@OrigSpText2)

set @[email protected]+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 @[email protected]+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 @[email protected]+1

end

end

set @[email protected]+1

end

drop table #temp

rollback tran

end