GATE RA Conquest Book — Signature Verification

This PDF is GPG-signed so you can verify it came from the author and hasn't been tampered with.

1. Import the public key

curl -O https://gateconquestbooks.pages.dev/pubkey.asc
gpg --import pubkey.asc

Check the fingerprint matches:

04D9 D396 4A68 998B CBBE 55E9 6D58 7D42 FC82 7E12

2. Download the book and its signature

curl -O https://gateconquestbooks.pages.dev/ra/gateconquestbooks_ra.pdf
curl -O https://gateconquestbooks.pages.dev/ra/gateconquestbooks_ra.pdf.asc

3. Verify

gpg --verify gateconquestbooks_ra.pdf.asc gateconquestbooks_ra.pdf

Expected output:

gpg: Good signature from "GATE DA Conquest Book <gateconquestbooks.pages.dev>"
gpg: WARNING: This key is not certified with a trusted signature!
     There is no indication that the signature belongs to the owner.

The "not certified" warning is normal — it just means you haven't personally signed this key. What matters is "Good signature".

4. Cross-check the fingerprint

The same fingerprint is printed on the last page of the PDF. If the PDF you're verifying shows a different fingerprint, the key or the PDF has been tampered with.

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