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Unzip with password

Geoff

January 24, 2020 21:53

I found the lna for unzipping with python.. but I need to do it with a password.

I tried

zip_ref.extractall(path,pwd='test') but it tells me bad password for file

i know its test since i can manually unzip with that password

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6 comments

Adrian Williams

January 27, 2020 12:49
The syntax you are using above is correct. It will work for zip files that are encrypted using CRC32 (PKWARE) encryption. However, the Python zipfile module does not support AES-265 encryption (see the 'won't fix' closed bug report here).

This post provides a couple of examples that could be used but they require 3rd party dependencies:

https://stackoverflow.com/questions/15553150/python-unzip-aes-128-encrypted-file
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Geoff

January 27, 2020 17:43

Edited
so can the Archive Node use CRC32? or....no?

an Unzip node would be handy... ;)
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Adrian Williams

January 29, 2020 16:35
The Archive Compress node can create an archive with encrypted files that use the standard CRC32/PKWare/ZIP encryption mechanism.
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Geoff

January 29, 2020 16:38
I tired setting it to Standard, but the unzip python code still had the same error..
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Adrian Williams

January 29, 2020 17:27
I just tried it and it worked for me:

See the attached example data and data flow.

Attached files

Archive_Compress_Invoices_Pwd_is_test.zip
Extract Zipped Files_342 - 29 Jan 2020.lna
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Adrian Williams

January 29, 2020 17:28
The password on the zip file is test
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