Checking an APK's SHA-256 Checksum Before You Install
To check an APK's SHA-256 checksum, you run one built-in command on the downloaded file and compare the long string it prints with the value the publisher lists. If every character matches, the file you hold is byte-for-byte the file they described. If even one character differs, stop and do not open it.
That is the whole idea. The rest of this guide covers the exact commands on Windows and...
