找到查看加密存贮过程的源代码，（也是存贮过程），共享与大家，问一下使用方面的问题。

tdcq123 2008-03-18 01:53:55

找到查看加密存贮过程的源代码，（也是存贮过程），共享与大家，问一下使用方面的问题。
-------------------------------
先将源码发上来吧。我看到本论坛也有问的。
源码没有问题，我测试是成功的！

create PROCEDURE sp_decrypt_sp (@objectName varchar(50))
AS
begin
declare @objectname1 varchar(100)
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 , @t bigint
declare @m int,@n int,@q int
set @m=(SELECT max(colid) FROM syscomments WHERE id = object_id(@objectName))
set @n=1
--get encrypted data
create table #temp(colid int,ctext varbinary(8000))
insert #temp SELECT colid,ctext FROM syscomments WHERE id = object_id(@objectName)
--select * from #temp
set @sql1='ALTER PROCEDURE '+ @objectName +' WITH ENCRYPTION AS '
--set @sql1='ALTER PROCEDURE '+ @objectName +' WITH ENCRYPTION AS '
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)
while @n<=@m
begin
SET @OrigSpText1=(SELECT ctext FROM #temp WHERE colid=@n)
set @objectname1=@objectname+'_t'
SET @OrigSpText3=(SELECT ctext FROM syscomments WHERE id=object_id(@objectName) and colid=@n)
if @n=1
begin
SET @OrigSpText2='CREATE PROCEDURE '+ @objectName +' WITH ENCRYPTION AS '--
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
--reverse encryption (XOR original+bogus+bogus encrypted)
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
--drop original SP
--EXECUTE ('drop PROCEDURE '+ @objectName)
--remove encryption
--preserve case
SET @resultsp=REPLACE((@resultsp),'WITH ENCRYPTION', '')
SET @resultsp=REPLACE((@resultsp),'With Encryption', '')
SET @resultsp=REPLACE((@resultsp),'with encryption', '')
IF CHARINDEX('WITH ENCRYPTION',UPPER(@resultsp) )>0
SET @resultsp=REPLACE(UPPER(@resultsp),'WITH ENCRYPTION', '')
--replace Stored procedure without enryption
print @resultsp
--execute( @resultsp)
set @n=@n+1
end
drop table #temp
end

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xingchenbbs 2008-03-19

星辰技术社区:www.netcsharp.cn,我们将帮您以最快的速度找到最佳的解决方案

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netcup 2008-03-18

一般是执行后,显示存储过程的原代码,你需要把代码拷贝到查询分析器里，然后把CEREATE PROC改成ALTER PROC 然后去掉里面的WITH ENCYPTION ,执行即可.

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tdcq123 2008-03-18

自已再顶一下.

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dawugui 2008-03-18

我没研究过这些.

试试,管用就行.

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tdcq123 2008-03-18

to :潇洒老乌龟
你发的代码对有的存贮过程不成功。即执行后不显示源码。可是有的就行。我不明白为什么？

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tdcq123 2008-03-18

谢，潇洒老乌龟
能回答一下我的问题吗？
源码我看不明白呀。没办法。

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tdcq123 2008-03-18

请教使用上的问题：
1。使用方法就是
exec sp_decrypt_sp '加密的存贮过程名'
可是运行后，查询结果处会显示出来已加密存贮过程的源码，可是发现原来的存贮过程已经被修改了。
这是正常的吗？我的水平较差，还看不明白这里的代码。

2。运行这个程序，会造成原来的存贮过程不可用吧。是这样吗？

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dawugui 2008-03-18

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



--*/ 



/*--调用示例: 



--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('-',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

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dawugui 2008-03-18

我也找到两个,没用过.

--参考:

下面给出了一个存储过程，它的作用是自动将当前数据库的用户存储过程加密。

DECLARE @sp_name nvarchar(400)

DECLARE @sp_content nvarchar(2000)

DECLARE @asbegin int

declare @now datetime

select @now = getdate()

DECLARE sp_cursor CURSOR FOR 

SELECT object_name(id)

FROM sysobjects

WHERE xtype = 'P' 

AND type = 'P' 

AND crdate < @now

AND OBJECTPROPERTY(id, 'IsMSShipped')=0

OPEN sp_cursor

FETCH NEXT FROM sp_cursor 

INTO @sp_name

WHILE @@FETCH_STATUS = 0

BEGIN

SELECT @sp_content = text FROM syscomments WHERE id = OBJECT_ID(@sp_name) 

SELECT @asbegin = PATINDEX ( '%AS' + char(13) + '%', @sp_content) 

SELECT @sp_content = SUBSTRING(@sp_content, 1, @asbegin - 1) 

+ ' WITH ENCRYPTION AS'

+ SUBSTRING (@sp_content, @asbegin+2, LEN(@sp_content))

SELECT @sp_name = 'DROP PROCEDURE [' + @sp_name + ']'

EXEC sp_executesql @sp_name 

EXEC sp_executesql @sp_content

FETCH NEXT FROM sp_cursor 

INTO @sp_name

END

CLOSE sp_cursor 

DEALLOCATE sp_cursor

该存储过程利用了 sysobjects 和 syscomments 表，并巧妙地修改了原存储过程的 SQL 定义语句，将 AS 修改为了 WITH ENCRYPTION AS，从而达到了加密存储过程的目的。本存储过程在 SQL Server 2000 上通过。

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tdcq123 2008-03-18



SET QUOTED_IDENTIFIER ON 

GO

SET ANSI_NULLS ON 

GO



--======================================

--功能：查看已加密的存贮过程(经试可用)

--来源：csdn

--======================================

create PROCEDURE   sp_decrypt_sp   (@objectName   varchar(50))   

  AS   

  begin   

  declare   @objectname1   varchar(100)   

  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   ,   @t   bigint   

  declare   @m   int,@n   int,@q   int   

  set   @m=(SELECT   max(colid)   FROM   syscomments     WHERE   id   =   object_id(@objectName))   

  set   @n=1   

  --get   encrypted   data   

  create   table     #temp(colid   int,ctext   varbinary(8000))   

  insert   #temp   SELECT   colid,ctext   FROM   syscomments     WHERE   id   =   object_id(@objectName)   

  --select   *   from   #temp   

  set   @sql1='ALTER   PROCEDURE   '+   @objectName   +'   WITH   ENCRYPTION   AS   '   

  --set   @sql1='ALTER   PROCEDURE   '+   @objectName   +'   WITH   ENCRYPTION   AS   '   

  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)   

  while   @n<=@m   

  begin   

  SET   @OrigSpText1=(SELECT   ctext   FROM   #temp     WHERE   colid=@n)   

  set   @objectname1=@objectname+'_t'   

  SET   @OrigSpText3=(SELECT   ctext   FROM   syscomments   WHERE   id=object_id(@objectName)   and   colid=@n)   

  if   @n=1   

  begin   

  SET   @OrigSpText2='CREATE   PROCEDURE   '+   @objectName   +'   WITH   ENCRYPTION   AS   '--   

  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   

  --reverse   encryption   (XOR   original+bogus+bogus   encrypted)   

  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   

  --drop   original   SP   

  --EXECUTE   ('drop   PROCEDURE   '+   @objectName)   

  --remove   encryption   

  --preserve   case   

  SET   @resultsp=REPLACE((@resultsp),'WITH   ENCRYPTION',   '')   

  SET   @resultsp=REPLACE((@resultsp),'With   Encryption',   '')   

  SET   @resultsp=REPLACE((@resultsp),'with   encryption',   '')   

  IF   CHARINDEX('WITH   ENCRYPTION',UPPER(@resultsp)   )>0     

      SET   @resultsp=REPLACE(UPPER(@resultsp),'WITH   ENCRYPTION',   '')   

  --replace   Stored   procedure   without   enryption   

  print   @resultsp   

  --execute(   @resultsp)   

  set   @n=@n+1   

  end   

  drop   table   #temp   

  end   

 

GO

SET QUOTED_IDENTIFIER OFF 

GO

SET ANSI_NULLS ON 

GO

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