Encrypt file with one standard password

[Tiddeo]

I would like to ZIP and encrypt my personal documents before uploading to the cloud. Would it be possible to integrate encryption with always the same password defined in the ToGoZip settings? That would be awesome!!!

[Tiddeo]

... this would be awesome too for sharing confidential data via Whatsapp. Up to now there is no tool in the AppStore to do so. As ZIP is a standard compatibility with every device is no issue.

[k3b]

Interesting idea. How would you protext the password? it needs an additional gui element to show the "****" and to retype the pwd to make shure that there is no typo?

[Tiddeo]

Hi, thanks for this ultra rapid answer :-). The approach you mentioned would be very luxurious. For me a simple textbox without further protection would be ok as well , as I want the protection for the cloud primarily. That would be wonderful for my needs. But the **** would be very elegant of course :-). Maybe a simple textbox would perfect to try this option? But Im not aware if its much easier to directly programm this nice **** version instead of programming a test version and in another step the nicer one.

[Tiddeo]

Oh dear, I thought it would be possible with ToGoZip to send files to the zip file and in another step to send it again to the next app (in my case the cloud service) like the wonderful Send Reduced does it (https://f-droid.org/packages/mobi.omegacentauri.SendReduced/): Take a pic => send to => SendReduced => "SendTo" dialogue starts again so you could send the resized pic to the next app (eMail,Whatsapp,etc.).

[k3b]

simple textbox without further protection would be ok as well.

Good enaough ist best.

I just discovered that standard java.util.zip does not support encryption.

This needs a re-implementation with https://github.com/imasm/Android-Zip4j or https://github.com/dmp/zip4j or something similar.

Since it is more than 60 minutes of work and currently i have other projects with higher priority i will not do it now.

Maybe there is somebody out there who wants to reimplement togozip with encryption.

[k3b]

as a workaround you can put the "2go.zip" file into an encrypted filecontainer (i.e. eds-light )

[ElTopo]

I use an app named ZArchiver (paid version)
https://play.google.com/store/apps/details?id=ru.zdevs.zarchiver.pro
it has a "saved passwords" feature: the app keeps a list of saved passwords, when you create compressed archive (zip/7zip/tar/bzip/gzip/xz/lz4...), you can either enter a password:

or click on ... (next to the password box) and choose a saved password (showing by label not password itself):

On the other hand, the app's free version does not have this feature (i.e., the feature is only in paid version), and the app is not open-source.

[zz-ha-dum]

Is this not an ideal use case for U2F / yubikey NFC?