124958aea9
Add a native full post-quantum encryption mode and fix a critical keystream-reuse bug in deduplicated encrypted archives. Full post-quantum mode (--pq-only) - New envelope type 0x06 (ZUPT_ENC_PQ_ONLY): ML-KEM-768 (FIPS 203) as the sole key-establishment mechanism, with no classical X25519 component. Archive key = SHA3-512(ml_ss || ml_ct || "ZUPT-PQ-ONLY-v1"). - For compliance postures that require a single NIST-standardised PQ primitive with no classical KEM in the envelope (CNSA 2.0-style "PQ-only"). Hybrid --pq stays the recommended default; --pq-only has no classical fallback, so a break of ML-KEM-768 alone breaks it. - keygen --pq-only / keygen --pub --pq-only (ZPQK magic, 1200B pub / 3600B priv; not interchangeable with hybrid --pq keys). Wrong or tampered ciphertext is rejected via ML-KEM FO implicit rejection plus the HMAC-SHA256 Encrypt-then-MAC envelope. In-tree, default build. Security (critical): AES-256-CTR keystream reuse under --dedup - Dedup assigns block sequence 0 to every data block (the sentinel that keeps cross-file dedup references authenticating consistently). The per-block nonce was base_nonce XOR block_seq, so under --dedup every block collapsed to the same nonce, reusing the CTR keystream across distinct plaintexts (a many-time-pad). Each block now uses a fresh random 128-bit nonce stored in the block prefix and bound into the block MAC; block_seq is still bound as MAC AAD. Regression test: tests/test_dedup_nonce.sh. Re-encrypt any --dedup encrypted archives written by <= 4.1.0. Other - keygen --sdk / --box on a source-only build now fails with a clear message pointing to native --pq / --pq-only (or a WITH_SDK=1 build). - Documentation: README, SECURITY, THREAT_MODEL, man page, CHANGELOG, and all packaging recipes updated for the new mode and the security fix; version bumped to 4.2.0. Wire format v1.6 unchanged (0x06 is additive). Validation: make check 16/16, quick suite 11/11 (incl. PQ-only), dedup-nonce regression (all block nonces distinct), cppcheck clean.
64 lines
2.6 KiB
Shell
64 lines
2.6 KiB
Shell
# Maintainer: Cristian Cezar Moisés <sac@securityops.co>
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#
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# AUR submission instructions:
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# 1. Run `make dist` upstream to produce zupt-VERSION.tar.gz.
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# 2. Upload that tarball somewhere stable (GitHub release / git.securityops.co).
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# 3. Update `source=()` URL and `sha256sums=()` below.
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# 4. Run `makepkg --printsrcinfo > .SRCINFO` in this directory.
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# 5. Commit and push to ssh://aur@aur.archlinux.org/zupt.git
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#
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# Test locally: `makepkg -s` in this directory after dropping a copy of the
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# zupt-VERSION.tar.gz alongside the PKGBUILD.
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pkgname=vaptvupt
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pkgver=4.2.0
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pkgrel=1
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provides=('zupt')
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replaces=('zupt')
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conflicts=('zupt')
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pkgdesc='Pure-C11 post-quantum backup compression utility (AES-256-CTR + HMAC-SHA256 + ML-KEM-768 + X25519)'
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arch=('x86_64' 'aarch64')
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url='https://git.securityops.co/cristiancmoises/zupt'
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license=('AGPL-3.0-or-later')
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depends=('glibc')
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makedepends=('gcc')
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checkdepends=('python')
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# Replace SHA256 placeholder with output of:
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# sha256sum /tmp/zupt-2.4.4.tar.gz
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source=("${pkgname}-${pkgver}.tar.gz::https://git.securityops.co/cristiancmoises/zupt/releases/download/v${pkgver}/${pkgname}-${pkgver}.tar.gz")
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sha256sums=('SKIP')
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build() {
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cd "${pkgname}-${pkgver}"
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# Strict-warning build that the project's own §6 verification matrix uses.
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CFLAGS="${CFLAGS:--O2 -std=c11} -Wall -Wextra -Wpedantic" \
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make -j"$(nproc)"
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}
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check() {
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cd "${pkgname}-${pkgver}"
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# Project regression suite — F-06 HMAC, F-08 top-MAC, F-09 byte sweep, etc.
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make test
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}
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package() {
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cd "${pkgname}-${pkgver}"
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make DESTDIR="${pkgdir}" PREFIX=/usr install
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# Docs that aren't part of `make install`
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install -Dm644 README.md "${pkgdir}/usr/share/doc/${pkgname}/README.md"
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install -Dm644 SECURITY.md "${pkgdir}/usr/share/doc/${pkgname}/SECURITY.md"
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install -Dm644 CHANGELOG.md "${pkgdir}/usr/share/doc/${pkgname}/CHANGELOG.md"
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install -Dm644 AUDIT.md "${pkgdir}/usr/share/doc/${pkgname}/AUDIT.md"
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install -Dm644 LICENSE "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE"
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# Vendored libzuptsdk shipped alongside the binary because the binary
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# is linked with -Wl,-rpath,$ORIGIN/vendor/zuptsdk. For system install
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# we move it to /usr/lib/zupt/ and the binary's rpath remains relative.
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install -d "${pkgdir}/usr/lib/${pkgname}"
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install -Dm755 vendor/zuptsdk/libzuptsdk.so.2.0.0 \
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"${pkgdir}/usr/lib/${pkgname}/libzuptsdk.so.2.0.0"
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ln -sf libzuptsdk.so.2.0.0 "${pkgdir}/usr/lib/${pkgname}/libzuptsdk.so.2"
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ln -sf libzuptsdk.so.2.0.0 "${pkgdir}/usr/lib/${pkgname}/libzuptsdk.so"
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}
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