首页 / 数据库 / SQLServer / 存储过程解密(破解函数,过程,触发器,视图.仅限于SQLSERVER2000)
复制代码 代码如下:
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(N"A", (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