FastTransfer-Documentation

Verifying FastTransfer Linux Binary Integrity and Authenticity

TL;DR

cd FastTransfer-linux-x64  
sha256sum -c FastTransfer.sha256sum.txt  
gpg --keyserver keys.openpgp.org --recv-keys 37007D091BF7DCC74D208A1F869511C7130465C8  
gpg --verify FastTransfer.sha256sum.txt.asc FastTransfer.sha256sum.txt

The unzipped directory contains 3 files:

To check the integrity of your FastTransfer file, generate its SHA256 sum and compare it with the sum present in FastTransfer.sha256sum.txt:

sha256sum -b FastTransfer

d0e9b29b447da1e8aa946d0fcfe31a8e60d8411c5aad791439d3356e07ade907 *FastTransfer

cat FastTransfer.sha256sum.txt

D0E9B29B447DA1E8AA946D0FCFE31A8E60D8411C5AAD791439D3356E07ADE907  FastTransfer%

Or you can verify its integrity using a single command, ensuring that the SHA256 checksum of the FastTransfer file matches the one provided in the FastTransfer.sha256sum.txt file:

sha256sum -c FastTransfer.sha256sum.txt

FastTransfer: OK

Authenticity check

`` To verify the authenticity of FastTransfer.sha256sum.txt, check the signature of FastTransfer.sha256sum.txt.asc by following the steps below.

Download the FastTransfer signing key:

gpg --keyserver keys.openpgp.org --recv-keys 37007D091BF7DCC74D208A1F869511C7130465C8

gpg: key 869511C7130465C8: "Francois Pacull <francois.pacull@architecture-performance.fr>" not changed
gpg: Total number processed: 1
gpg:              unchanged: 1

You can check that the key was properly imported:

gpg --list-key --with-fingerprint 130465C8

The output should contain 3700 7D09 1BF7 DCC7 4D20 8A1F 8695 11C7 1304 65C8 and look like this:

pub   rsa4096 2025-04-11 [SC]
      3700 7D09 1BF7 DCC7 4D20  8A1F 8695 11C7 1304 65C8
uid           [ultimate] Francois Pacull <francois.pacull@architecture-performance.fr>
sub   rsa4096 2025-04-11 [E]

Verify the authenticity of FastTransfer.sha256sum.txt

gpg --verify FastTransfer.sha256sum.txt.asc FastTransfer.sha256sum.txt

gpg: Signature made Fri 11 Apr 2025 04:22:51 PM CEST
gpg:                using RSA key 37007D091BF7DCC74D208A1F869511C7130465C8
gpg: checking the trustdb
gpg: marginals needed: 3  completes needed: 1  trust model: pgp
gpg: depth: 0  valid:   1  signed:   0  trust: 0-, 0q, 0n, 0m, 0f, 1u
gpg: Good signature from "Francois Pacull <francois.pacull@architecture-performance.fr>" [ultimate]

The output of the last command should tell you that the file signature is good and that it was signed with the 37007D091BF7DCC74D208A1F869511C7130465C8 key.