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Henry Bremridge wrote: > I can use 7z to create AES encrypted zip files for Windows (important > given > GDPR), that is if clients have Windows 10 or Windows 7 > > What about apple products? Does anyone have any idea how I can encrypt a > file I send to an apple user and have the client be able to open it > without > the client downloading software? I have a nearly vanilla (recently reinstalled) test Mac. Output of: $ type openssl $ type tar Suggests the obvious Linux command line approach would work. Although the OpenSSL version string he says LibreSSL. Seriously though, I'd just mandate GPGtools, and use GPG. You'll have a GUI, services, sensible default crypto, key management tool etc. They lag a little behind Mac releases sometimes. Also you'll use sensible key lengths, and your lovingly encrypted files won't just spew their contents to a key brute force because users thinks "Rainbow1" is a strong password. -- The Mailing List for the Devon & Cornwall LUG https://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq