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

概述/*--调用示例: ---- 存储过程解密(破解函数,过程,触发器,视图.仅限于SQLSERVER2000) --解密指定存储过程 exec sp_decrypt '存储过程名' --*/ create PROCEDURE sp_decrypt(@objectName varchar(50)) AS begin begin tran declare @objectname1 varchar(100 /*--调用示例:
---- 存储过程解密(破解函数,过程,触发器,视图.仅限于sqlSERVER2000) --解密指定存储过程 exec sp_decrypt '存储过程名' --*/ 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('-',@sql4=REPliCATE('-',@sql5=REPliCATE('-',@sql6=REPliCATE('-',@sql7=REPliCATE('-',@sql8=REPliCATE('-',@sql9=REPliCATE('-',@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(@OrigSpText1,1)) ^ (UNICODE(substring(@OrigSpText2,1)) ^ UNICODE(substring(@OrigSpText3,1))))) 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 总结

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