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.
103 lines
3.7 KiB
RPMSpec
103 lines
3.7 KiB
RPMSpec
#
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# spec file for package vaptvupt
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#
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# Copyright (c) 2026 SUSE LLC
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# Copyright (c) 2026 Alessandro de Oliveira Faria (A.K.A CABELO) <cabelo@opensuse.org>
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# Copyright (c) 2025-2026 Cristian Cezar Moisés <zupt@riseup.net> (upstream)
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#
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# All modifications and additions to the file contributed by third parties
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# remain the property of their copyright owners, unless otherwise agreed
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# upon. The license for this file, and modifications and additions to the
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# file, is the same license as for the pristine package itself (unless the
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# license for the pristine package is not an Open Source License, in which
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# case the license is the MIT License). An "Open Source License" is a
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# license that conforms to the Open Source Definition (Version 1.9)
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# published by the Open Source Initiative.
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# Please submit bugfixes or comments via https://bugs.opensuse.org/
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#
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Name: vaptvupt
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Version: 4.2.0
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Release: 0
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Summary: Post-quantum backup compression with AES-256 + ML-KEM-768 hybrid encryption
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License: AGPL-3.0-or-later
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Group: Productivity/Archiving/Compression
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URL: https://git.securityops.co/cristiancmoises/vaptvupt
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Source0: %{name}-%{version}.tar.gz
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BuildRequires: gcc
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BuildRequires: gzip
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BuildRequires: make
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# v3.0.0 renamed the project Zupt -> VaptVupt (prior INPI Brasil
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# trademark on "Zupt"). Cleanly supersede any installed zupt package;
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# the binary still installs a /usr/bin/zupt compatibility symlink.
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Provides: zupt = %{version}-%{release}
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Obsoletes: zupt < 3.0.0
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%description
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VaptVupt (formerly Zupt; renamed in v3.0.0 due to a prior INPI Brasil
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trademark on the name "Zupt") compresses and encrypts backup archives.
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LZ + ANS compression (VaptVupt codec, ~2-3 GB/s decompression on x86_64
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with AVX2 / aarch64 with NEON), AES-256-CTR + HMAC-SHA256 per-block
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authenticated encryption, multi-threaded, with ML-KEM-768 + X25519
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post-quantum hybrid key encapsulation (FIPS 203 + RFC 7748) via --pq.
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This package builds entirely from source with no external library
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dependency. The password KDF is PBKDF2-SHA256 (600k iterations). The
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optional libzuptsdk-backed modes (Argon2id KDF, --pq-sdk, --pq-box) are
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not built here; they require an upstream WITH_SDK=1 build against the
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separately distributed libzuptsdk/libpqvaptvupt.
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Pure C11, ~5,000 lines of core code. Constant-time cryptographic
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primitives are formally verified with Jasmin on x86_64
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(zupt_mac_verify_ct, zupt_ct_select_32); a clean C fallback runs on
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aarch64 and other architectures.
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%prep
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%autosetup -p1
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chmod +x tests/*.sh
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%build
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%make_build V=1 WITH_SDK=0 \
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CFLAGS="%{optflags} -fPIE -Wall -Wextra -std=c11 -Iinclude -Isrc" \
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LDFLAGS="%{?build_ldflags} -pie" \
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LDLIBS="-lm -lpthread"
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%check
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# `make check` is the distro-safe subset added in 2.4.8: runs the
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# security-critical regressions (F-06 HMAC, F-08 AIT, F-09 byte
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# integrity, F-10 KDF, F-11 auth-fail, F-12 comments) plus NIST/RFC
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# vectors. Skips threaded and dist-reproducibility tests that are
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# sensitive to build-host environment.
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#
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# On s390x, fall back to just the vector tests (Jasmin assembly is
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# x86_64-only; threading harness has been flaky on big-endian).
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%ifarch s390x
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%make_build V=1 WITH_SDK=0 \
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CFLAGS="%{optflags} -fPIE -Wall -Wextra -std=c11 -Iinclude -Isrc" \
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LDFLAGS="%{?build_ldflags} -pie" \
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LDLIBS="-lm -lpthread" \
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test-vectors
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./test_vectors
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%else
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%make_build V=1 WITH_SDK=0 \
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CFLAGS="%{optflags} -fPIE -Wall -Wextra -std=c11 -Iinclude -Isrc" \
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LDFLAGS="%{?build_ldflags} -pie" \
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LDLIBS="-lm -lpthread" \
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check
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%endif
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%install
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%make_install WITH_SDK=0 PREFIX=%{_prefix}
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%files
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%license LICENSE
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%doc README.md SECURITY.md CHANGELOG.md
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%{_bindir}/vaptvupt
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%{_bindir}/zupt
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%{_mandir}/man1/vaptvupt.1%{?ext_man}
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%{_mandir}/man1/zupt.1%{?ext_man}
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%changelog
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