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Major release. Highlights: - Codec: vendored VaptVupt codec moves to canonical 2.60.4 security release. Fixes a high-severity OOB heap write in the AVX2 decode fast path (reachable on a valid stream sized to exactly content_size, both tail variants). Brings CBMC-formally-verified BCJ filters with automatic ELF/PE/Mach-O detection. Compressed output stays byte-identical (ratio gate Δ 0.00%); wire format unchanged at v1.6. - New --pq-box sealed-box recipient mode (vendored libpqvaptvupt 0.6.0): ML-KEM-768 + X25519 combined via HKDF-SHA256 with domain separation, AES-256-CTR + HMAC-SHA256 EtM. Legacy --pq and --pq-sdk stay readable. - F-16: discloses and fixes a pre-existing data-loss defect in the <= 3.8.0 in-tree BCJ encoder. Full back-compat matrix decodes byte-exact under 4.0.0; every readable pre-4.0 archive remains readable. Repository hygiene: - Sync full 4.0.0 source tree (codec, crypto, SDK, GUI, packaging, tests). - Remove internal scratch files (PROMPT.md, FORMAL_AUDIT_PROMPT.md) and superseded version-specific docs (INTEGRATION_PROTOCOL_2.60.4.md, docs/FINDINGS-2.x.md) and a stray test binary. - Refresh README download/install section to real 4.0.0 release assets; bump version badge to 4.0.0. - Add .gitignore for build outputs (keeps vendored prebuilt libraries).
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4 KiB
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92 lines
4 KiB
Text
GNU AFFERO GENERAL PUBLIC LICENSE
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Version 3, 19 November 2007
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Copyright (C) 2026 Cristian Cezar Moisés <zupt@riseup.net>
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VaptVupt (formerly Zupt; renamed in v3.0.0 due to a prior INPI Brasil
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trademark registration of "Zupt" for unrelated software) is free
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software: you can redistribute it and/or modify it under the terms of
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the GNU Affero General Public License as published by the Free
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Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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VaptVupt is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public
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License along with this program. If not, see:
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https://www.gnu.org/licenses/agpl-3.0.txt
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https://www.gnu.org/licenses/agpl-3.0.html
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SPDX-License-Identifier: AGPL-3.0-or-later
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─────────────────────────────────────────────────────────────────────
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ABOUT THIS LICENSE
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The GNU Affero General Public License v3 (AGPLv3) is a copyleft
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license designed for software that may be run as a network service.
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It is identical to the GNU General Public License v3, with one
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additional requirement (Section 13): if you modify libzuptsdk and
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make the modified version available to users over a computer network,
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you must offer those users access to the corresponding modified
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source code.
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This protects Zupt against being adopted by SaaS providers as
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a private fork without contributing back, while keeping it freely
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usable by individuals, small businesses, and the broader open-source
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community.
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If you write a separate program that is distributed alongside
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Zupt (for example, statically linking it into your own
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application), the AGPL requires you to license that combined work
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under the AGPL as well — which means you must publish the source.
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If this is not acceptable for your use case, please contact the
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author for commercial licensing options:
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sac@securityops.co
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https://git.securityops.co/cristiancmoises/zupt
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─────────────────────────────────────────────────────────────────────
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The full text of the GNU Affero General Public License version 3
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should accompany this distribution as a separate file (or you may
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download it from the URLs above). It is approximately 35 KB / 619
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lines of plain text.
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─────────────────────────────────────────────────────────────────────
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NOTE ON VAPTVUPT (GPL, NOT AGPL)
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The VaptVupt LZ + tANS codec, located in:
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src/vv_*.c
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src/vaptvupt_api.c
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include/vaptvupt*.h
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include/vv_*.h
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is licensed under the GNU General Public License version 3 or later
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(GPL-3.0-or-later), NOT the AGPL. This deliberate licensing choice is
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made so that, with sufficient maturity, VaptVupt can be considered
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for upstreaming into the Linux or BSD kernels (which require GPL-
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compatible licensing).
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The standalone repository for VaptVupt is at:
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https://git.securityops.co/cristiancmoises/vaptvupt
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The combination of GPL-licensed VaptVupt with AGPL-licensed Zupt is
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explicitly intended by the author and consistent with the rights
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retained by sole-authorship.
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─────────────────────────────────────────────────────────────────────
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COMMERCIAL LICENSING
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Both AGPL and GPL components may be commercially relicensed by the
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author. If you require relief from copyleft terms, contact:
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sac@securityops.co
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