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netmdocm [2010/06/08 06:28] – add info to netmd(0) megadiscmannetmdocm [2011/01/16 14:33] – nopsled
Line 166: Line 166:
 ASN.1 Sequence with a data structure that is setup and manipulated by functions called through DICT 187 (these functions are in DICT 188). ASN.1 Sequence with a data structure that is setup and manipulated by functions called through DICT 187 (these functions are in DICT 188).
  
-30 80 +  30 80 
-      02 02 03E9 +        02 02 03E9 
-      04 14 43EA428F71EE7B665D10752E85AB16E5A50C6249 ; MAC +        04 14 43EA428F71EE7B665D10752E85AB16E5A50C6249 ; MAC 
-      04 14 638163B82C4E31810FBEE01B2E7FC25B879586E3 ; Enc(CKEY) ? Offset 0x1E according to Jan (// key is at offset 0x1E! (OMGDecrypter.cpp) +        04 14 638163B82C4E31810FBEE01B2E7FC25B879586E3 ; Enc(CKEY) ? Offset 0x1E according to Jan (// key is at offset 0x1E! (OMGDecrypter.cpp) 
- +        30 80 02 01 6B ; 17 (some time stamp) 
-      30 80 02 01 6B ; 17 (some time stamp) +              02 04 48C2298F 
-            02 04 48C2298F +              02 01 07 ; 7 == creation time of structure 
-            02 01 07 ; 7 == creation time of structure +              02 04 48C2298F 
-            02 04 48C2298F +              02 01 6D ; 109 
-            02 01 6D ; 109 +              02 01 00 
-            02 01 00 +              02 01 65 ; 101 
-            02 01 65 ; 101 +              04 14 C04B513EDE54342D709D0CB8621E646FDDCB345E 
-            04 14 C04B513EDE54342D709D0CB8621E646FDDCB345E +              02 01 00 ; 0 == scrambled form of the maclist id == SalOmgId 
-            02 01 00 ; 0 == scrambled form of the maclist id == SalOmgId +              04 14 010F50000004000000EFF3C3244C602635178457 
-            04 14 010F50000004000000EFF3C3244C602635178457 +              02 01 68 ; 104 
-            02 01 68 ; 104 +              02 02 1FD7 
-            02 02 1FD7 +              02 01 06 ; 6 == source name 
-            02 01 06 ; 6 == source name +              04 15 72617720636F6E74656E7420696D706F7274696E67 
-            04 15 72617720636F6E74656E7420696D706F7274696E67 +                     r a w   c o n t e n t   i m p o r t i n g 
-                   r a w   c o n t e n t   i m p o r t i n g +              02 01 67 ; 103 == flags? 
-            02 01 67 ; 103 == flags? +              02 01 02 
-            02 01 02 +              02 01 01 ; 1 == max checkout? 
-            02 01 01 ; 1 == max checkout? +              02 01 03 
-            02 01 03 +              02 01 08 ; 8 == checkout count? 
-            02 01 08 ; 8 == checkout count? +              02 01 03 
-            02 01 03 +              02 01 05 ; 5 == flags (1|2|4) 
-            02 01 05 ; 5 == flags (1|2|4) +              02 01 04 
-            02 01 04 +              0000 ; End array 
-            0000 ; End array +        30 80 0000 ; Empty array 
-      30 80 0000 ; Empty array +        0000 ; End array
-      0000 ; End array+
  
 ===== maclist1.dat ===== ===== maclist1.dat =====
Line 906: Line 905:
 ===== maclist(1) ===== ===== maclist(1) =====
  
-/* +XOR the SalOmgId with a constant key, expand that to a symmetric key and apply to the SHA-1 hash of MACLIST.  Compare the result with param3 and return 1 if they are equal.  In other words, param3 is a complicated hash of the MACLIST.
-Procedure prototype: +
- maclist(01) +
- +
-Input: +
- +
-SalNonConstPointer const &, +
-SalPointer const &, +
-SalOmgId const &, +
-long, +
-SalExtrinsicsProg const & +
- +
-Output: +
- +
-long +
- +
-*/+
  
 ===== Sample input: ===== ===== Sample input: =====
Line 948: Line 931:
 } ; } ;
  
- 
-XOR the SalOmgId with a constant key, expand that to a symmetric key and apply to the SHA-1 hash of MACLIST.  Compare the result with param3 and return 1 if they are equal.  In other words, param3 is a complicated hash of the MACLIST. 
  
 ===== maclist(8) ===== ===== maclist(8) =====
Line 1541: Line 1522:
 </code> </code>
  
-===== maclist.ocm  ===== 
- 
-// maclist(1) 
-// 
-// work in progress 
- 
-<code> 
- 
-int  
-maclist_0x01(blob_t SalOmgId, blob_t maclist2dat, blob_t OmgIcvCache) 
-{ 
-  static blob_t pad[16] = {0x20, 0xBE, 0xDE, 0x72, 0xA3, 0xB8, 0x62, 0x60,  
-                           0x71, 0x44, 0x3A, 0x33, 0xE9, 0xAC, 0x69, 0xCE}; 
-  static SHA1state, hash_maclist, hash_maclist_salomgid, xor_SalOmgId; 
- 
-  SHA1state             = BCX_19_InitSHA1(); 
-  BCX_1A_SHA1AddData(maclist, 0, SHA1state); 
-  hash_maclist         = BCX_1B_SHA1Finish(SHA1state); 
- 
-  xor_SalOmgId          = BCX_06_XorBlobs(SalOmgId, pad); 
-  hash_maclist_salomgid = salenc_sha1(SalOmgId_xor, hash_maclist); 
- 
-  hash_maclist == hash_xorSalOmgId? TRUE: FALSE   
-} 
  
-</code>  
netmdocm.txt · Last modified: 2024/05/21 14:50 by nopsled
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