[icq-devel] Re: Contents of icq-devel digest Vol 23, Issue 1



Trevor gemaspecial at yahoo.com.hk
Thu Jan 13 02:55:41 CET 2005


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> Today's Topics:
> 
>    1. Encryption of direct-connection message on
> ICQ2003 (Chen Kidheart)
>    2. David Kren/UK/Symbian is out of the office.
>       (David.Kren at symbian.com)
> 
> 
>
----------------------------------------------------------------------
> 
> Message: 1
> Date: Wed, 12 Jan 2005 15:01:32 +0800
> From: "Chen Kidheart" <kidheartchen at msn.com>
> Subject: [icq-devel] Encryption of direct-connection
> message on
> 	ICQ2003
> To: icq-devel at blipp.com
> Message-ID:
> <BAY11-F24D19F3F1098C30751DFCDC9890 at phx.gbl>
> Content-Type: text/plain; charset=big5;
> format=flowed
> 
> Excuse me!
> 
> I have some questions about direct connections of
> ICQ PRO 2003b client.
> 
> ( Product of ICQ (TM).2003 b.5.56.1.3916.85 )
> 
> There is a DC message packet below:
> 
> 0000005D  02 a5 53 97 b7 a8 84 e0  0a aa 7c ee 0a 4d
> 83 ee ..S..... 
> ..|..M..
> 0000006D  0a 58 83 ee 0a 5c 83 f4  0a 05 83 cf 0a 47
> 83 ee .X...\.. 
> .....G..
> 0000007D  26 57 3d 85 79 56 8c 2c  1a 18 25 30 47 e0
> 60 b8 &W=.yV., 
> ..%0G.`.
> 0000008D  41 40 83 ee 0d 57 83 ee  47 2b f0 9d 6b 21
> e6 ee A at ...W.. 
> G+..k!..
> 0000009D  0a 52 83 ee 0b 49 83 ee  0a 48 83 ee 0a 05
> b4 ef .R...I.. 
> .H......
> 000000AD  0a 59 82 ef 0a 2e f8 b2  78 27 e5 df 56 35
> ed 9d .Y...... 
> x'..V5..
> 000000BD  63 59 e2 80 79 69 63 70  67 39 35 30 5c 64
> 65 66 cY..yicp 
> g950\def
> 000000CD  66 30 5c 64 65 66 6c 61  6e 67 31 30 33 33
> 5c 64 f0\defla 
> ng1033\d
> 000000DD  65 66 6c 61 6e 67 66 65  31 30 32 38 7b 5c
> 66 6f eflangfe 
> 1028{\fo
> 000000ED  6e 74 74 62 6c 7b 5c 66  30 5c 66 73 77 69
> 73 73 nttbl{\f 
> 0\fswiss
> 000000FD  5c 66 63 68 61 72 73 65  74 30 20 41 72 69
> 61 6c \fcharse t0 
> Arial
> 0000010D  3b 7d 7b 5c 66 31 5c 66  6e 69 6c 5c 66 63
> 68 61 ;}{\f1\f 
> nil\fcha
> 0000011D  72 73 65 74 31 33 36 20  5c 27 62 37 5c 27
> 37 33 rset136  
> \'b7\'73
> 0000012D  5c 27 62 32 5c 27 64 33  5c 27 61 39 5c 27
> 66 61 \'b2\'d3 
> \'a9\'fa
> 0000013D  5c 27 63 35 5c 27 65 39  3b 7d 7d 0d 0a 7b
> 5c 63 \'c5\'e9 
> ;}}..{\c
> 0000014D  6f 6c 6f 72 74 62 6c 20  3b 5c 72 65 64 32
> 31 5c olortbl  
> ;\red21\
> 0000015D  67 72 65 65 6e 34 33 5c  62 6c 75 65 37 37
> 3b 7d green43\ 
> blue77;}
> 0000016D  0d 0a 5c 76 69 65 77 6b  69 6e 64 34 5c 75
> 63 31 ..\viewk 
> ind4\uc1
> 0000017D  5c 70 61 72 64 5c 63 66  31 5c 6c 61 6e 67
> 31 30 \pard\cf 
> 1\lang10
> 0000018D  32 38 5c 66 30 5c 66 73  32 32 20 54 65 73
> 74 20 28\f0\fs 22 Test 
> 
> 0000019D  4d 65 73 73 61 67 65 20  23 32 5c 66 31 5c
> 70 61 Message  
> #2\f1\pa
> 000001AD  72 0d 0a 7d 0d 0a 00 00  00 00 00 ff ff ff
> 00 26 r..}.... 
> .......&
> 000001BD  00 00 00 7b 39 37 42 31  32 37 35 31 2d 32
> 34 33 ...{97B1 
> 2751-243
> 000001CD  43 2d 34 33 33 34 2d 41  44 32 32 2d 44 36
> 41 42 C-4334-A 
> D22-D6AB
> 000001DD  46 37 33 46 31 34 39 32  7d               
>       F73F1492 }
> 
> 
> In this packet, the encrypted section from 0x02 to
> 0x79 before the RTF 
> message :
> 
> 0000005D  02 a5 53 97 b7 a8 84 e0  0a aa 7c ee 0a 4d
> 83 ee ..S..... 
> ..|..M..
> 0000006D  0a 58 83 ee 0a 5c 83 f4  0a 05 83 cf 0a 47
> 83 ee .X...\.. 
> .....G..
> 0000007D  26 57 3d 85 79 56 8c 2c  1a 18 25 30 47 e0
> 60 b8 &W=.yV., 
> ..%0G.`.
> 0000008D  41 40 83 ee 0d 57 83 ee  47 2b f0 9d 6b 21
> e6 ee A at ...W.. 
> G+..k!..
> 0000009D  0a 52 83 ee 0b 49 83 ee  0a 48 83 ee 0a 05
> b4 ef .R...I.. 
> .H......
> 000000AD  0a 59 82 ef 0a 2e f8 b2  78 27 e5 df 56 35
> ed 9d .Y...... 
> x'..V5..
> 000000BD  63 59 e2 80 79                            
>       cY..y
> 
>  
> How do I analyze/decrypt this section ?
> 
> I only know this kind of DC message packets always
> start with byte 0x02 on 
> ICQ PRO 2003 client. 
> 
> Can i get the UIN/ICQ# from the encrypted section ?
> or get any concrete 
> information ? 
> 
> Is this encrypted section just provided for the
> receiver to check that the 
> sender is legal or not ?
> 
> Thx in advance. Have a nice day!
> 
> 
> 
> -Chun Hang Chen
> 
>
_________________________________________________________________
> MSN Messenger 7.0
> ·mÂAª©¼ö¯P¤U¸ü¤¤¡G§O¿ù¹L¶W»Åªº°Êµe§Ö»¼ 
> http://messenger.msn.com.tw/beta 
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Wed, 12 Jan 2005 10:00:33 +0000
> From: David.Kren at symbian.com
> Subject: [icq-devel] David Kren/UK/Symbian is out of
> the office.
> To: icq-devel at blipp.com
> Message-ID:
> 
>
<OFE9484A24.33AB643F-ON80256F87.0036FB7D-80256F87.0036FB7D at Symbian.com>
> 	
> Content-Type: text/plain;	charset="US-ASCII"
> 
> 
> 
> 
> 
> I will be out of the office starting  11/01/2005 and
> will not return until
> 14/01/2005.
> 
> On training till Friday.
> 
=== message truncated === 

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