How to sign a file with a qualified electronic signature?

Question

Android

All the best!
Tell me if it is possible to sign a file (in my case, xml before sending a POST request) with a qualified electronic signature (or EDS, I don’t know if there are any differences)? Are there any libraries for Android and IOS?

Answer 1

Yes, there is a possibility. For example, through CryptoPro CSP for Android

The Android CSP installs once per device and can be used by any application where the developers have implemented the appropriate Java Cryptography Architecture (JCA) programmatic calls