Differences

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--- netmdocm [2011/01/15 13:11] – nopsled
+++ netmdocm [2011/01/16 14:34] – nopsled
@@ Line 904: / Line 904: @@
 ===== 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.
 ===== Sample input: =====
@@ Line 929: / 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) =====
@@ Line 1474: / Line 1474: @@
-===== netmd.ocm Decompiled =====
-<code>
-Dict[0xf9] = {0x63, 0x81, 0x63, 0xB8, 0x2C, 0x4E, 0x31,
-x81, 0x0F, 0xBE, 0xE0, 0x1B, 0x2E, 0x7F,
-xC2, 0x5B, 0x87, 0x95, 0x86, 0xE3};
-// CIPHERTEXT must be a serialized and encrypted blob (see dev_0xd8/dev_0xd9).
-// The PLAINTEXT is appended to that blob and the serialized and encrypted result is returned.
-blob_t
-netmd_0x07 (blob_t key, blob_t some_plaintext, blob_t some_ciphertext)
-{
-  static blob_t pad[16] = { 0x33, 0x4a, 0x18, 0x94, 0xc1, 0xf3, 0x83, 0xf6,
-xd3, 0xeb, 0x6a, 0xc2, 0xad, 0x13, 0x07, 0xca };
-  blob_t data = dev_0xd8 (some_ciphertext, XOR (key, pad));
-  data = CONCAT (data, some_plaintext);
-  return dev_0xd9 (data, XOR (key, pad));
-}
-</code>
-===== icv.ocm Decompiled =====
-<code>
-//
-// Generate a SalOmgId
-//
-//   Example: 30 80 0410010F5000000400000000006E2B2A75BA 00 00
-//
-//   <OMG Directory>\OMGKEY\omg_id..dat
-//
-// Note: When OpenMG is used (trough the UI) for the first time this value is generated,
-//       by calling the salwrap function getSalOmgId.
-//
-//                   const unsigned __int8 *__cdecl getSalOmgId()
-//
-blob_t icv(07)
-{
- blob_t SalIdPRNG  = BCX_1C_GetPRNGBytes(5);
- static blob_t PrefixSalOmgId[8] = {0x01,0x0F,0x50,0x00,0x00,0x04,0x00,0x00};
- data = BCX_01_Concat(PrefixSalOmgId, SalIdPRNG);
- Push 1
- Pack_To_Array
- Create_Array
-}
-</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,
-x71, 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>