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SQL2008,SQL2005存储过程解密

第一步操作步骤：'程序'->'Sql Server2005'->  '配置工具'-> 'Sql Server  外围应用配置器'-> '功能的外围应用配置器'-> 'DataBase Engine'->  'DAC' -> '启用远程DAC'

第二步：启动SQL Server Browser 服务

第三部使用DAC模式登陆(关键就在这个地方)1  登陆SQL Server Management Studio

2,新建查询,在弹出的连接对话框中,服务器名称改为 ADMIN:服务器名称;然后,选项->连接属性->连接到数据库 改为加密存储过程所在的数据库->连接即可.(只能有一个查询界面)

3  创建存储过程 sp_windbi$decrypt (下文)

4     执行 exec sp_windbi$Decrypt '你要解密的存储过程名',0

Create PROCEDURE [dbo].[sp_windbi$decrypt]
(@procedure sysname = NULL, @revfl int = 1)AS/**//*
王成辉翻译整理，转贴请注明出自微软BI开拓者www.windbi.com
调用形式为：
exec dbo.sp__windbi$decrypt @procedure,0
如果第二个参数使用1的话，会给出该存储过程的一些提示。
--版本4.0  修正存储过程过长解密出来是空白的问题*/SET NOCOUNT ONIF @revfl = 1BEGINPRINT '警告：该存储过程会删除并重建原始的存储过程。'PRINT ' 在运行该存储过程之前确保你的数据库有一个备份。'PRINT ' 该存储过程通常应该运行在产品环境的一个备份的非产品环境下。'PRINT ' 为了运行这个存储过程，将参数@refl的值更改为0。'RETURN 0ENDDECLARE @intProcSpace bigint, @t bigint, @maxColID smallint,@procNameLength intselect @maxColID = max(subobjid) FROM
sys.sysobjvalues WHERE objid = object_id(@procedure)--select @maxColID as 'Rows in sys.sysobjvalues'select @procNameLength = datalength(@procedure) + 29DECLARE @real_01 nvarchar(max)DECLARE @fake_01 nvarchar(max)DECLARE @fake_encrypt_01 nvarchar(max)DECLARE @real_decrypt_01 nvarchar(max),@real_decrypt_01a nvarchar(max)declare @objtype varchar(2),@ParentName nvarchar(max)select @real_decrypt_01a = ''--提取对象的类型如是存储过程还是函数，如果是触发器，还要得到其父对象的名称select @objtype=type,@parentname=object_name(parent_object_id)from sys.objects where [object_id]=object_id(@procedure)-- 从sys.sysobjvalues里提出加密的imageval记录SET @real_01=(SELECT top 1 imageval FROM sys.sysobjvalues WHERE objid =object_id(@procedure) and valclass = 1 order by subobjid)

--创建一个临时表create table #output ( [ident] [int] IDENTITY (1, 1) NOT NULL ,[real_decrypt] NVARCHAR(MAX) )--开始一个事务，稍后回滚BEGIN TRAN--更改原始的存储过程，用短横线替换if @objtype='P'SET @fake_01='ALTER PROCEDURE '+ @procedure +' WITH ENCRYPTION AS select 1
/**//*'+REPLICATE(cast('*'as nvarchar(max)), datalength(@real_01) /2 - @procNameLength)+'*/'else if @objtype='FN'SET @fake_01='ALTER FUNCTION '+ @procedure +'() RETURNS INT WITH ENCRYPTION AS BEGIN RETURN 1
/**//*'+REPLICATE(cast('*'as nvarchar(max)), datalength(@real_01) /2 - @procNameLength)+'*/ END'else if @objtype='V'SET @fake_01='ALTER view '+ @procedure +' WITH ENCRYPTION AS select 1 as col
/**//*'+REPLICATE(cast('*'as nvarchar(max)), datalength(@real_01) /2 - @procNameLength)+'*/'else if @objtype='TR'SET @fake_01='ALTER trigger '+ @procedure +' ON '+@parentname+'WITH ENCRYPTION AFTER INSERT AS RAISERROR (''N'',16,10)
/**//*'+REPLICATE(cast('*'as nvarchar(max)), datalength(@real_01) /2 - @procNameLength)+'*/'EXECUTE (@fake_01)--从sys.sysobjvalues里提出加密的假的SET @fake_encrypt_01=(SELECT top 1 imageval FROM sys.sysobjvalues WHERE objid =object_id(@procedure) and valclass = 1 order by subobjid )if @objtype='P'SET @fake_01='Create PROCEDURE '+ @procedure +' WITH ENCRYPTION AS select 1
/**//*'+REPLICATE(cast('*'as nvarchar(max)), datalength(@real_01) /2 - @procNameLength)+'*/'else if @objtype='FN'SET @fake_01='CREATE FUNCTION '+ @procedure +'() RETURNS INT WITH ENCRYPTION AS BEGIN RETURN 1
/**//*'+REPLICATE(cast('*'as nvarchar(max)), datalength(@real_01) /2 - @procNameLength)+'*/ END'else if @objtype='V'SET @fake_01='Create view '+ @procedure +' WITH ENCRYPTION AS select 1 as col
/**//*'+REPLICATE(cast('*'as nvarchar(max)), datalength(@real_01) /2 - @procNameLength)+'*/'else if @objtype='TR'SET @fake_01='Create trigger '+ @procedure +' ON '+@parentname+'WITH ENCRYPTION AFTER INSERT AS RAISERROR (''N'',16,10)
/**//*'+REPLICATE(cast('*'as nvarchar(max)), datalength(@real_01) /2 - @procNameLength)+'*/'--开始计数SET @intProcSpace=1--使用字符填充临时变量SET @real_decrypt_01 = replicate(cast('A'as nvarchar(max)), (datalength(@real_01) /2 ))--循环设置每一个变量，创建真正的变量
--每次一个字节SET @intProcSpace=1--如有必要，遍历每个@real_xx变量并解密WHILE @intProcSpace<=(datalength(@real_01)/2)BEGIN--真的和假的和加密的假的进行异或处理SET @real_decrypt_01 = stuff(@real_decrypt_01, @intProcSpace, 1,NCHAR(UNICODE(substring(@real_01, @intProcSpace, 1)) ^
(UNICODE(substring(@fake_01, @intProcSpace, 1)) ^UNICODE(substring(@fake_encrypt_01, @intProcSpace, 1)))))SET @intProcSpace=@intProcSpace+1END

--通过sp_helptext逻辑向表#output里插入变量insert #output (real_decrypt) select @real_decrypt_01--select real_decrypt AS '#output chek' from #output --测试
-- -------------------------------------
--开始从sp_helptext提取
-- -------------------------------------declare @dbname sysname
,@BlankSpaceAdded int
,@BasePos int
,@CurrentPos int
,@TextLength int
,@LineId int
,@AddOnLen int
,@LFCR int --回车换行的长度,@DefinedLength int
,@SyscomText nvarchar(max)
,@Line nvarchar(255)Select @DefinedLength = 255SELECT @BlankSpaceAdded = 0 --跟踪行结束的空格。注意Len函数忽略了多余的空格CREATE TABLE #CommentText
(LineId int
,Text nvarchar(255) collate database_default)--使用#output代替sys.sysobjvaluesDECLARE ms_crs_syscom CURSOR LOCALFOR SELECT real_decrypt from #outputORDER BY identFOR READ ONLY--获取文本SELECT @LFCR = 2SELECT @LineId = 1OPEN ms_crs_syscomFETCH NEXT FROM ms_crs_syscom into @SyscomTextWHILE @@fetch_status >= 0BEGINSELECT @BasePos = 1SELECT @CurrentPos = 1SELECT @TextLength = LEN(@SyscomText)WHILE @CurrentPos != 0BEGIN--通过回车查找行的结束SELECT @CurrentPos = CHARINDEX(char(13)+char(10), @SyscomText,@BasePos)--如果找到回车IF @CurrentPos != 0BEGIN--如果@Lines的长度的新值比设置的大就插入@Lines目前的内容并继续While (isnull(LEN(@Line),0) + @BlankSpaceAdded +@CurrentPos-@BasePos + @LFCR) > @DefinedLengthBEGINSELECT @AddOnLen = @DefinedLength-(isnull(LEN(@Line),0) +@BlankSpaceAdded)INSERT #CommentText VALUES
( @LineId,isnull(@Line, N'') + isnull(SUBSTRING(@SyscomText,@BasePos, @AddOnLen), N''))SELECT @Line = NULL, @LineId = @LineId + 1,@BasePos = @BasePos + @AddOnLen, @BlankSpaceAdded = 0ENDSELECT @Line = isnull(@Line, N'') +isnull(SUBSTRING(@SyscomText, @BasePos, @CurrentPos-@BasePos + @LFCR), N'')SELECT @BasePos = @CurrentPos+2INSERT #CommentText VALUES( @LineId, @Line )SELECT @LineId = @LineId + 1SELECT @Line = NULLENDELSE--如果回车没找到BEGINIF @BasePos <= @TextLengthBEGIN--如果@Lines长度的新值大于定义的长度While (isnull(LEN(@Line),0) + @BlankSpaceAdded +@TextLength-@BasePos+1 ) > @DefinedLengthBEGINSELECT @AddOnLen = @DefinedLength -
(isnull(LEN(@Line),0) + @BlankSpaceAdded)INSERT #CommentText VALUES
( @LineId,isnull(@Line, N'') + isnull(SUBSTRING(@SyscomText,@BasePos, @AddOnLen), N''))SELECT @Line = NULL, @LineId = @LineId + 1,@BasePos = @BasePos + @AddOnLen, @BlankSpaceAdded =0ENDSELECT @Line = isnull(@Line, N'') +isnull(SUBSTRING(@SyscomText, @BasePos, @TextLength-@BasePos+1 ), N'')if LEN(@Line) < @DefinedLength and charindex('',@SyscomText, @TextLength+1 ) > 0BEGINSELECT @Line = @Line + '', @BlankSpaceAdded = 1ENDENDENDENDFETCH NEXT FROM ms_crs_syscom into @SyscomTextENDIF @Line is NOT NULLINSERT #CommentText VALUES( @LineId, @Line )select Text from #CommentText order by LineIdCLOSE ms_crs_syscomDEALLOCATE ms_crs_syscomDROP TABLE #CommentText-- -------------------------------------
--结束从sp_helptext提取
-- -------------------------------------
--删除用短横线创建的存储过程并重建原始的存储过程ROLLBACK TRANDROP TABLE #outputgo