sql server 存储过程加密破解1

cxwpf200

　　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>　　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>　　select @number=max(number) from #temp
　　set @k=0
　　while @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　　begin
　　select @colid=max(colid) from #temp where number=@k
　　set @n=1
　　while @n　　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