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kimci86 / bkcrack

Crack legacy zip encryption with Biham and Kocher's known plaintext attack.
zlib License
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How to deal the case of a zip with a folder #134

Closed betterzyh closed 2 months ago

betterzyh commented 2 months ago

zip archive, there is a folder, encrypted files are stored in this folder, this situation with bkcrack decryption, will prompt “Zip error: found no entry named ‘entry file’.” How to deal with this situation? Thank you. use: bkcrack -C bb.zip -c file1.dat -p plain.txt prompt: Zip error: found no entry named ‘file1.dat’.” Actually, “file1.dat” is in the secondary folder of bb.zip.

I'm using a translation program, it may not make sense, sorry!

kimci86 commented 2 months ago

Folders hierarchy is encoded in ZIP archives by naming entries with a path containing folder names. For example, in there is a file named file1.dat in a folder named files, then the entry name would be files/file1.dat.

You can see the full name of entries with bkcrack -L bb.zip. Then use the full entry name in the command: bkcrack -C bb.zip -c folder_name/file1.dat -p plain.txt

If the entry name contains non-ASCII characters that make it challenging to copy or type, then you can use the entry index instead of the entry name. Let's assume the index for file1.dat in bkcrack -L bb.zip output is 42, then you would run this: bkcrack -C bb.zip --cipher-index 42 -p plain.txt

betterzyh commented 2 months ago

Thanks so much, it worked! Both methods you provided worked! Thank you so much for your reply!

betterzyh commented 2 months ago

Thanks so much, it worked! Both methods you provided worked! Thank you so much for your reply!

------------------ 原始邮件 ------------------ 发件人: "kimci86/bkcrack" @.>; 发送时间: 2024年9月25日(星期三) 下午4:45 @.>; @.**@.>; 主题: Re: [kimci86/bkcrack] How to deal the case of a zip with a folder (Issue #134)

Folders hierarchy is encoded in ZIP archives by naming entries with a path containing folder names. For example, in there is a file named file1.dat in a folder named files, then the entry name would be files/file1.dat.

You can see the full name of entries with bkcrack -L bb.zip. Then use the full entry name in the command: bkcrack -C bb.zip -c folder_name/file1.dat -p plain.txt

If the entry name contains non-ASCII characters that make it challenging to copy or type, then you can use the entry index instead of the entry name. Let's assume the index for file1.dat in bkcrack -L bb.zip output is 42, then you would run this: bkcrack -C bb.zip --cipher-index 42 -p plain.txt

— Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: @.***>