Skip to content

Extract files encrypted with PKWare AES encryption #893

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
jhudsoncedaron opened this issue May 8, 2025 · 0 comments
Open

Extract files encrypted with PKWare AES encryption #893

jhudsoncedaron opened this issue May 8, 2025 · 0 comments
Labels
enhancement Feature request or other improvements of existing functionality *no response*

Comments

@jhudsoncedaron
Copy link

Is your feature request related to a problem? Please describe.

We have a spec ambiguity with a third party spec; it says file in zip file to be encrypted with AES encryption.

There are two different versions of AES encryption; WinZip's version and PKWare's version. Almost everybody uses WinZip's version but this one vendor decided to use PKWare's version for reasons that we probably will never know.

So, we don't need to write these; but we do need to read them.

Describe the solution you'd like

Recognize the flags and initialize the AES decryption stream when opening such a zip entry.

No need to implement the other encryption schemes as far as we are concerned.

Describe alternatives you've considered

Looking for a commercial package as been considered.

Tags

No response

Additional context

No response

@jhudsoncedaron jhudsoncedaron added the enhancement Feature request or other improvements of existing functionality label May 8, 2025
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
enhancement Feature request or other improvements of existing functionality *no response*
Projects
None yet
Development

No branches or pull requests

1 participant