Sje.jhh: Difference between revisions
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(Created page with 'Game resource archive used by TOJ. == File format == * 4 bytes - index section offset * 4 bytes - index section length * [data section] * [index section] == Index section for…') |
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* 4 bytes - index section length | * 4 bytes - index section length | ||
* [data section] | * [data section] | ||
* [index section] | * [index section (encrypted)] | ||
== Index section format == | == Index section format == | ||
* 4 bytes - number of entries | * 4 bytes - number of entries | ||
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* 4 bytes - last entry offset | * 4 bytes - last entry offset | ||
* 4 bytes - last entry length | * 4 bytes - last entry length | ||
== Encyption == | |||
[http://en.wikipedia.org/wiki/Rc4 Rc4 stream cipher] is used. | |||
Encryption/decryption is done with advapi32 crypt. | |||
password = "1111"; | |||
CryptAcquireContext(&hCryptProv, NULL, MS_DEF_PROV, PROV_RSA_FULL, 0); | |||
CryptCreateHash( hCryptProv, CALG_MD5, 0, 0, &hHash); | |||
CryptHashData(hHash, (BYTE *) password, 4, 0)); | |||
CryptDeriveKey(hCryptProv, CALG_RC4, hHash, 4, &hKey)); | |||
Few first bytes of keystream: | |||
BA 38 72 06 03 1D 16 65 77 D3 28 EE 9D 12 40 44 8A DB B7 00 1B 3D C5 93 81 16 E2 21 62 8D 34 8A 70 28 30 A3 41 C5 F9 25 B0 AA 84 2A 34 3F BC 45 2F 8E 7B 7F D3 9D 75 DB 3D 33 3E 71 2F DD | |||
Revision as of 03:52, 1 January 2010
Game resource archive used by TOJ.
File format
- 4 bytes - index section offset
- 4 bytes - index section length
- [data section]
- [index section (encrypted)]
Index section format
- 4 bytes - number of entries
- 4 bytes - unknown
- string - path
- 4 bytes unknown
- string - entry 1 filename
- 4 bytes - entry 1 offset
- 4 bytes - entry 1 length
- 4 bytes - unknown
- string - entry 2 filename
- 4 bytes - entry 2 offset
- 4 bytes - entry 2 length
- 4 bytes - unknown
- string - entry 3 filename
...
- 4 bytes - unknown
- string - last entry filename
- 4 bytes - last entry offset
- 4 bytes - last entry length
Encyption
Rc4 stream cipher is used.
Encryption/decryption is done with advapi32 crypt.
password = "1111"; CryptAcquireContext(&hCryptProv, NULL, MS_DEF_PROV, PROV_RSA_FULL, 0); CryptCreateHash( hCryptProv, CALG_MD5, 0, 0, &hHash); CryptHashData(hHash, (BYTE *) password, 4, 0)); CryptDeriveKey(hCryptProv, CALG_RC4, hHash, 4, &hKey));
Few first bytes of keystream:
BA 38 72 06 03 1D 16 65 77 D3 28 EE 9D 12 40 44 8A DB B7 00 1B 3D C5 93 81 16 E2 21 62 8D 34 8A 70 28 30 A3 41 C5 F9 25 B0 AA 84 2A 34 3F BC 45 2F 8E 7B 7F D3 9D 75 DB 3D 33 3E 71 2F DD