The SIGNATURES-3.6.0.txt file on the official Wireshark website provides PGP-signed SHA256 hashes to verify the integrity and authenticity of the 3.6.0 version installation packages. By comparing these cryptographic hashes against downloaded installers, users can ensure their software is genuine and untampered. For more details, visit Wireshark . SIGNATURES-3.6.0.txt - Wireshark