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Line 1: − + + + + + + − ==File structure== Line 16:
Line 20: + − + + + − key = md5(keyString + "NadeoPak")+ − "name" corresponds to the name of a .pak file, minus the extension. "key" is the 16-byte key used during Blowfish decryption of the .pak file.+ − ==Signature verification==+ − Line 42:
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no edit summary
packlist.dat is a file in the "Packs" folder in the TrackMania installation directory. It contains the encryption keys for the [[PAK|.pak files]] there.
{{DISPLAYTITLE:packlist.dat}}
'''{{c|packlist.dat}}''' is a file in the "Packs" folder in the TrackMania installation directory. It contains the encryption keys for the [[PAK|.pak files]].
There is no equivalent file for ManiaPlanet.
== File structure ==
* byte version (currently 1)
* byte version (currently 1)
* byte numPacks
* byte numPacks
The name and the key of each entry are decrypted as follows.
The name and the key of each entry are decrypted as follows.
// md5() is a function that returns the MD5 hash of the input string
nameKey = md5("6611992868945B0B59536FC3226F3FD0" + sprintf("%u", salt));
nameKey = md5("6611992868945B0B59536FC3226F3FD0" + sprintf("%u", salt));
for (int i = 0; i < nameLength; i++)
for (int i = 0; i < nameLength; i++)
name[i] = encryptedName[i] ^ nameKey[i % 16];
name[i] = encryptedName[i] ^ nameKey[i % 16];
keyStringKey = md5(name + sprintf("%u", salt) + "B97C1205648A66E04F86A1B5D5AF9862")
keyStringKey = md5(name + sprintf("%u", salt) + "B97C1205648A66E04F86A1B5D5AF9862")
for (int i = 0; i < 0x20; i++)
for (int i = 0; i < 0x20; i++)
keyString[i] = encryptedKeyString[i] ^ keyStringKey[i % 16];
keyString[i] = encryptedKeyString[i] ^ keyStringKey[i % 16];
key = md5(keyString + "NadeoPak")
{{c|name}} corresponds to the name of a .pak file, without the extension. {{c|key}} is the 16-byte key used during Blowfish decryption of the .pak file.
== Signature verification ==
{{c|packlist.dat}} has a 16-byte signature/checksum at the end for integrity checking. It is verified as follows:
packlist.dat has a 16-byte signature at the end for integrity checking. It is verified as follows:
md5In = md5("E3554B5828AF14F11AA42A5EAF0AEFC8" + sprintf("%u", salt));
md5In = md5("E3554B5828AF14F11AA42A5EAF0AEFC8" + sprintf("%u", salt));
The calculated signature must match the signature in the file, or TrackMania will not accept the file.
The calculated signature must match the signature in the file, or TrackMania will not accept the file.
[[Category:File formats]]