FastBCP-Documentation

Verifying FastBCP Linux Binary Integrity and Authenticity

TL;DR

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

The unzipped directory contains 3 files:

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

sha256sum -b FastBCP

2a44f461eb444506fc9de1f1ad09f6ccf441c76b07dd6ac6e4e46db2d61d9f3e *FastBCP

cat FastBCP.sha256sum.txt

2A44F461EB444506FC9DE1F1AD09F6CCF441C76B07DD6AC6E4E46DB2D61D9F3E  FastBCP%

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

sha256sum -c FastBCP.sha256sum.txt

FastBCP: OK

Authenticity check

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

Download the FastBCP 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 FastBCP.sha256sum.txt

gpg --verify FastBCP.sha256sum.txt.asc FastBCP.sha256sum.txt

gpg: Signature made Fri 11 Apr 2025 06:18:17 PM CEST
gpg:                using RSA key 37007D091BF7DCC74D208A1F869511C7130465C8
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.

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