Compression Algorithm option for python-gnupg

[Low Kim Hoe]

Hi All,

May I ask any parameter we can set the compression algorithm

when we encrypt the file?

Thanks

[Vinay Sajip]

No, encryption and compression are orthogonal. Compress your data before encrypting it, or vice versa - it doesn't matter, as long as you reverse the order of operations when decompressing/decrypting.

[Low Kim Hoe]

Hi Vinay,

I have found this option, --compress-algo under the GNUPG software.

https://www.gnupg.org/documentation/manuals/gnupg/GPG-Esoteric-Options.html#index-compress_002dalgo

We can select the preference compression format with this option by running GNUPG command.
example: gpg --encrypt --recipient "key_id_public_key" --compress-algo zip "file_name"
Do you mean that python-gnupg library doesnt support for this option?

Thanks

[Vinay Sajip]

Oh, I see. Yes, you can pass extra arguments to gpg using the extra_args parameter - for example,

result = gpg.encrypt(..., extra_args = ['--compress-algo', 'zip'])

[Low Kim Hoe]

Sorry for late reply and yes this is working for me.

thank you so much for helping

[Vinay Sajip]

Glad it worked for you!