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kimci86 / bkcrack

Crack legacy zip encryption with Biham and Kocher's known plaintext attack.
zlib License
1.69k stars 163 forks source link

Issue with Recovering Password for Zip File #135

Closed jeturgavli closed 1 month ago

nelolka commented 2 months ago

If you want to use this mp4, you need to use its deflated version. Compress it with the same archiver, extract deflate with bkcrack, and then pass it to bkcrack as plaintext file (or use just first 10-12 bytes from it). But we don't know how it was compressed with other files, so it may not work. Better focus on uncompressed files (marked as store in your logs). Just make or get the same photos as your uncompressed .jpg and use first bytes from it. Also you have uncompressed WPSettings.dat. I've googled some examples and it always starts with 0C000000, so you have the additional 4 bytes.

jeturgavli commented 2 months ago

@nelolka 👍 i will try this for 2-3 days and let you know if it works or not. Thanks

jeturgavli commented 1 month ago

@nelolka I’m really frustrated from searching for the key. If you can help me, I’ll send you my reports file. If you need any more information, I can provide it as well.

nelolka commented 1 month ago

Ok. Send me your zip and jpg like your uncompressed one to email imnelolka[at]gmail.com or reply in telegram :)

kimci86 commented 1 month ago

@nelolka You solved it using some JPEG header bytes, right?

nelolka commented 1 month ago

@kimci86 He hasn't messaged me yet 🙂