archy/scripts/sign-iso-checksums.sh
Dorian caf9e6d3a3 feat(iso): per-device secrets on first boot + checksum emission and signing
- archipelago-first-boot-secrets.service regenerates the self-signed TLS
  keypair (device hostname in SAN) and all SSH host keys on the installed
  system's first boot, before ssh/nginx start — the squashfs bakes one
  key set at build time, so every flashed device shared them (§F 🔴)
- staging-first swaps: a failed regeneration keeps the baked keys rather
  than leaving the device keyless
- the builder now emits <iso>.sha256 next to the ISO, and
  scripts/sign-iso-checksums.sh signs {artifact,sha256,size} as a JSON
  doc with the release-root ceremony (verify: ceremony verify) (§F 🟠)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-13 13:41:16 +01:00

66 lines
2.6 KiB
Bash
Executable File

#!/usr/bin/env bash
# Sign an ISO's checksums with the release root (counterpart to sign-manifest.sh).
#
# Run: bash scripts/sign-iso-checksums.sh path/to/archipelago-X.Y.Z.iso
# Then: paste your 24-word release master mnemonic, press Enter, then Ctrl-D.
#
# Writes <iso>.sha256.json next to the ISO — a JSON document carrying the
# artifact name, size and sha256, signed by the pinned release-root anchor
# (same detached-Ed25519 scheme as the OTA manifest and app catalog).
# Verify anywhere with: archipelago ceremony verify <iso>.sha256.json
#
# The mnemonic is read from the terminal only (never stored, never in shell
# history). The build host never holds the release key: build emits the plain
# <iso>.sha256; the publisher signs with this script during the ceremony.
set -euo pipefail
ISO="${1:-}"
[ -n "$ISO" ] || { echo "Usage: $0 path/to/image.iso"; exit 1; }
[ -f "$ISO" ] || { echo "Error: $ISO not found"; exit 1; }
REPO="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
# Use ONLY a prebuilt signer — never compile here (compiling caused hangs in
# the earlier catalog ceremony). Prefer the repo's release build.
BIN=""
for candidate in "$REPO/core/target/release/archipelago" /tmp/archy-sign-bin/release/archipelago; do
if [[ -x "$candidate" ]]; then BIN="$candidate"; break; fi
done
if [[ -z "$BIN" ]]; then
echo "⏳ No prebuilt signer found. Build one first:"
echo " (cd core && cargo build --release -p archipelago)"
echo " Nothing was changed."
exit 0
fi
ISO_NAME="$(basename "$ISO")"
ISO_DIR="$(cd "$(dirname "$ISO")" && pwd)"
OUT="$ISO_DIR/$ISO_NAME.sha256.json"
echo "Hashing $ISO_NAME (this can take a minute on a large ISO)..."
SHA256="$(sha256sum "$ISO" | awk '{print $1}')"
SIZE="$(wc -c < "$ISO" | tr -d ' ')"
cat > "$OUT" <<EOF
{
"artifact": "$ISO_NAME",
"sha256": "$SHA256",
"size_bytes": $SIZE
}
EOF
echo "════════════════════════════════════════════════════════════════"
echo " Paste your 24-word release master mnemonic below, press Enter,"
echo " then press Ctrl-D on a new line."
echo "════════════════════════════════════════════════════════════════"
"$BIN" ceremony sign "$OUT"
echo
if "$BIN" ceremony verify "$OUT"; then
echo "✅ SUCCESS — $OUT signed by the pinned release root."
echo " Publish it next to the ISO together with $ISO_NAME.sha256."
else
echo "❌ Verification failed — do not publish. Re-run the signing."
exit 1
fi