Difference between revisions of "ARC (Yuno)"

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Line 36: Line 36:
! Size !! Content !! Description
! Size !! Content !! Description
|-
|-
| 28 Bytes || File Name || XOR by 0x03
| 20 Bytes || File Name || XOR by 0x03
|-
|-
| 8 Bytes || Unknown || Possibly size and position
| 4 Bytes || File Size || XOR by 0x33656755
|-
| 4 Bytes || File Position || XOR by 0x68820811
|}
|}

Revision as of 04:39, 2 March 2018

Used in the following game(s):

  • Yuno

Index appears to be protected. First 4 bytes are number of entries in index/number of files in archive. Even with this, a quick look and guess work shows an index entry is 28-bytes in size. Filename space is 20-bytes, followed by (probably) two 4-byte numbers. Appears everything but the initial 4-bytes that stores the file count is protected. As for the protection... Appears each byte is XOR by 0x03 for at least the file names.

0303030303030303030303

=

0000000000000000000000

thus

5A564D4C5C32322D544255 (ZVML\22-TBU)

=

59554E4F5F31312E574156 (YUNO_11.WAV)

...really? ^^; Didn't even need a debugger for that. XD

And now for the data after that...

(Future me: ...did I really type that?)

Header
Size Content Description
4 Bytes File count
Index Entry
Size Content Description
20 Bytes File Name XOR by 0x03
4 Bytes File Size XOR by 0x33656755
4 Bytes File Position XOR by 0x68820811