netmdocm
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| netmdocm [2011/01/15 13:12] – nopsled | netmdocm [2011/01/16 14:43] – nopsled | ||
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| In other words, this extracts the 0-extension of a MACLIST and an encrypted hash of that. | In other words, this extracts the 0-extension of a MACLIST and an encrypted hash of that. | ||
| + | |||
| + | See pcmaclist(6) | ||
| /* | /* | ||
| Line 1474: | Line 1476: | ||
| - | ===== netmd.ocm Decompiled ===== | ||
| - | < | ||
| - | |||
| - | Dict[0xf9] = {0x63, 0x81, 0x63, 0xB8, 0x2C, 0x4E, 0x31, | ||
| - | 0x81, 0x0F, 0xBE, 0xE0, 0x1B, 0x2E, 0x7F, | ||
| - | 0xC2, 0x5B, 0x87, 0x95, 0x86, 0xE3}; | ||
| - | |||
| - | |||
| - | // CIPHERTEXT must be a serialized and encrypted blob (see dev_0xd8/ | ||
| - | // 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, | ||
| - | { | ||
| - | static blob_t pad[16] = { 0x33, 0x4a, 0x18, 0x94, 0xc1, 0xf3, 0x83, 0xf6, | ||
| - | 0xd3, 0xeb, 0x6a, 0xc2, 0xad, 0x13, 0x07, 0xca }; | ||
| - | blob_t data = dev_0xd8 (some_ciphertext, | ||
| - | data = CONCAT (data, some_plaintext); | ||
| - | return dev_0xd9 (data, XOR (key, pad)); | ||
| - | } | ||
| - | </ | ||
| - | |||
| - | ===== icv.ocm Decompiled ===== | ||
| - | |||
| - | < | ||
| - | |||
| - | // | ||
| - | // Generate a SalOmgId | ||
| - | // | ||
| - | // | ||
| - | // | ||
| - | // < | ||
| - | // | ||
| - | // 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) | ||
| - | { | ||
| - | | ||
| - | | ||
| - | data = BCX_01_Concat(PrefixSalOmgId, | ||
| - | Push 1 | ||
| - | | ||
| - | | ||
| - | } | ||
| - | </ | ||
| - | |||
| - | ===== maclist.ocm | ||
| - | |||
| - | // maclist(1) | ||
| - | // | ||
| - | // work in progress | ||
| - | |||
| - | < | ||
| - | |||
| - | int | ||
| - | maclist_0x01(blob_t SalOmgId, blob_t maclist2dat, | ||
| - | { | ||
| - | 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, | ||
| - | |||
| - | SHA1state | ||
| - | BCX_1A_SHA1AddData(maclist, | ||
| - | hash_maclist | ||
| - | |||
| - | xor_SalOmgId | ||
| - | hash_maclist_salomgid = salenc_sha1(SalOmgId_xor, | ||
| - | |||
| - | hash_maclist == hash_xorSalOmgId? | ||
| - | } | ||
| - | </ | ||
netmdocm.txt · Last modified: 2011/01/16 17:59 by nopsled