As of December 2017, RediGate firmware releases include a file checksum (SHA-256), which can be used to validate the authenticity of a downloaded file.
To view the expected file checksum, find the release date of the tarball in its Change Log (or locate the SHA hash of other released software) at the RediGate Product Support Page: http://redigate.elecsyscorp.com/software
To verify the checksum of a downloaded file, use a SHA-256 calculation app, such as one of the following:
- MD5 & SHA Checksum Utility
- With 7-Zip installed, right-click on file and choose "CRC SHA" context menu (SHA-256)
- Or, at a Linux command line enter: sha256sum filename