存储过程解密(破解函数,过程,触发器,视图.仅限于SQLSERVER2000)

create PROCEDURE sp_decrypt(@objectName varchar(50))
AS
begin
begin tran
declare @objectname1 varchar(100),@orgvarbin varbinary(8000)
declare @sql1 nvarchar(4000),@sql2 nvarchar(4000),@sql3 nvarchar(4000),@sql4 nvarchar(4000),@sql5 nvarchar(4000),@sql6 nvarchar(4000),@sql7 nvarchar(4000),@sql8 nvarchar(4000),@sql9 nvarchar(4000),@sql10 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
set @sql1=ALTER TRIGGER +@objectname+ 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 +@objectname+ WITH ENCRYPTION AS SELECT 1
set @q=len(@sql1)
set @sql1=@sql1+REPLICATE(-,4000-@q)
select @sql2=REPLICATE(-,4000),@sql3=REPLICATE(-,4000),@sql4=REPLICATE(-,4000),@sql5=REPLICATE(-,4000),@sql6=REPLICATE(-,4000),@sql7=REPLICATE(-,4000),@sql8=REPLICATE(-,4000),@sql9=REPLICATE(-,4000),@sql10=REPLICATE(-,4000)
exec(@sql1+@sql2+@sql3+@sql4+@sql5+@sql6+@sql7+@sql8+@sql9+@sql10)
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--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 +@objectname+ ON +OBJECT_NAME(@parentid)+ WITH ENCRYPTION FOR INSERT AS PRINT 1
if @type=V
set @OrigSpText2=CREATE VIEW +@objectname+ WITH ENCRYPTION AS SELECT 1
set @q=4000-len(@OrigSpText2)
set @OrigSpText2=@OrigSpText2+REPLICATE(-,@q)
end
else
begin
SET @OrigSpText2=REPLICATE(-, 4000)
end
--start counter
SET @i=1
--fill temporary variable
SET @resultsp = replicate(NA, (datalength(@OrigSpText1) / 2))
--loop
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
--execute( @resultsp)
set @n=@n+1
end
end
set @k=@k+1
end
drop table #temp
rollback tran
end
GO