I bought a used ThinkPad that currently has Windows 11 installed, and I'm preparing to install Fedora Workstation 44. Fedora's download instructions show Bash commands for checking the ISO checksum and verifying its GPG/PGP signature, but I'm working from Windows and would prefer not to install a full Bash environment. I've already downloaded the ISO, checksum, and signature files, and the checksum appears to match. What is the recommended way to complete the GPG signature verification from Windows before writing the ISO to a USB drive?
3 Answers
The two checks serve different purposes: the GPG signature confirms that the checksum file was signed by the Fedora release team, while the SHA-256 checksum confirms that your ISO matches the published image. GPG verification is useful, but if you haven’t independently established trust in Fedora’s signing key, it doesn’t provide complete assurance by itself.
On Windows, Gpg4win is a practical option for verifying the signature. You provide the downloaded signature file and checksum file to GPG4win’s tools, then check that the signature is valid. After that, verify the ISO itself with PowerShell: `Get-FileHash -Path "C:pathtoyourfile.iso" -Algorithm SHA256`. Make sure the hash algorithm matches the checksum supplied by Fedora.
PGP and GPG refer to closely related implementations of the same general standard—GPG is the modern open-source tool most commonly used for this. Also, Fedora can perform an additional media check when booting, although it’s still best to verify the download beforehand.
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