게시판 로직을 짜다.. 보니 sp돌리는 부분이 있어.. em에서 확인하니.. 암호화
되어 있더라구요..
"WITH ENCRYPTION" 일캐 해서.. 암호화 했다고 하는디..
풀어서 확인할 방법이 없나요..?
DECRYPTSP2K 이넘을 맹글어서 샘플처럼 돌리시면 됩니다...
dbo.sample.prc
---------------------------------
CREATE PROCEDURE hello
WITH ENCRYPTION
AS
PRINT 'Hello World!'
GO
exec sp_helptext hello
GO
exec dbo.DECRYPTSP2K 'hello'
GO
exec sp_helptext hello
GO
----------------------------------
dbo.DECRYPTSP2K.prc
----------------------------------
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS OFF
GO
CREATE PROCEDURE DECRYPTSP2K (@objName varchar(50))
--INPUT: object name (stored procedure,
--
-- view or trigger)
--Original idea: shoeboy <shoeboy@a
-- dequacy.org>
--Copyright ?1999-2002 SecurityFocus
--adapted by Joseph Gama
--Planet Source Code, my employer and my
--
-- self are not responsible for the use
-- of
-- this code
--This code is provided as is and for ed
--
-- ucational purposes only
--Please test it and share your results
AS
DECLARE @a nvarchar(4000), @b nvarchar(4000), @c nvarchar(4000), @d
nvarchar(4000), @i int, @t bigint
--get encrypted data
SET @a=(SELECT ctext FROM syscomments WHERE id = object_id(@objName))
SET @b='ALTER PROCEDURE '+ @objName +' WITH ENCRYPTION AS '+REPLICATE('-',
4000-62)
EXECUTE (@b)
--get encrypted bogus SP
SET @c=(SELECT ctext FROM syscomments WHERE id = object_id(@objName))
SET @b='CREATE PROCEDURE '+ @objName +' WITH ENCRYPTION AS '+REPLICATE('-',
4000-62)
--start counter
SET @i=1
--fill temporary variable
SET @d = replicate(N'A', (datalength(@a) / 2))
--loop
WHILE @i<=datalength(@a)/2
BEGIN
--xor original+bogus+bogus encrypted
SET @d = stuff(@d, @i, 1,
NCHAR(UNICODE(substring(@a, @i, 1)) ^
(UNICODE(substring(@b, @i, 1)) ^
UNICODE(substring(@c, @i, 1)))))
SET @i=@i+1
END
--drop original SP
EXECUTE ('drop PROCEDURE '+ @objName)
--remove encryption
--try to preserve case
SET @d=REPLACE((@d),'WITH ENCRYPTION', '')
SET @d=REPLACE((@d),'With Encryption', '')
SET @d=REPLACE((@d),'with encryption', '')
IF CHARINDEX('WITH ENCRYPTION',UPPER(@d) )>0
SET @d=REPLACE(UPPER(@d),'WITH ENCRYPTION', '')
--replace SP
execute( @d)
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
----------------------------------------------------
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