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Zupt v2.1.2: add full-disk backup/restore, expand test suite, improve compression handling

Browse source 
- Introduced full-disk backup/restore (src/zupt_disk.c, ~530 LOC)
  - Backup: streams 4MB blocks with sparse detection and all codecs
  - Restore: per-block checksum validation for integrity
  - Supports password (-p), PQ hybrid (--pq), or no encryption
  - Real-time progress bar with throughput reporting (stderr)

- Implemented sparse detection (8-byte zero scan)
  - Zero blocks stored as STORE (near-zero overhead)

- Added disk-aware safeguards
  - ZUPT_FLAG_DISK_IMAGE prevents misuse with extract
  - Immediate failure on wrong password during first block decrypt

- Cross-platform device size detection
  - Linux: BLKGETSIZE64
  - macOS: DKIOCGETBLOCKCOUNT
  - Fallback: lseek

- Compression behavior
  - ~2928:1 on highly repetitive data
  - ~1.33:1 on random data (auto STORE fallback)

- Expanded test suite to 77 tests:
  - 11 VV unit
  - 13 NIST/RFC vectors
  - 22 regression
  - 14 multi-threaded
  - 10 post-quantum
  - 7 disk (normal, encrypted, PQ, sparse, LZHP, extreme compression, wrong-password)

Release stats:
- 74 files, 168KB, zero .o artifacts
- 77/77 tests passing
- Fully clean under ASAN + UBSan
This commit is contained in:
Cristian Cezar Moisés 2026-04-06 19:33:37 -03:00
commit 1ee9f30ae8
1 changed files with 3 additions and 3 deletions
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6
README.md
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@ -372,10 +372,10 @@ All codecs are forward-compatible: archives created with any codec can be read b
| v1.1–v1.4 | X25519 fix, NIST vectors, CPUID detection, Jasmin source files fixed |
| v1.5 | Jasmin CT assembly linked (MAC verify + ML-KEM select active) |
| v1.5.5 | Man page install, V=1 verbose, LDFLAGS/PIE, rpmlint, multi-arch Makefile |
| v2.0 | VaptVupt 1.1.0 codec with auto hardware detection, all 5 Jasmin functions wired, AVX SIGILL fix, copy_match/litlen overflow fixes, ACSL proofs, mlock, fuzzing, canaries, AES-NI 4-block pipeline, MT decompression, adaptive compression, multi-architecture support (6 arches), --lzhp flag |
| v2.1 | VaptVupt 1.4.0: cross-block dictionary carry, context decode prefetch, faster adaptive window trial (2.6× encode), integration API |
| v2.1.1 | Termux/Android build fix, arch-safety guard removes stale cross-arch .o, Keccak ROL64 UB fix, zero UBSan violations |
| **v2.1.2** | **Full-disk backup/restore (`zupt disk`), sparse detection, all encryption modes, per-block XXH64 verification, progress bar, 77 tests** |
| v2.1.1 | Termux/Android build fix, arch-safety guard removes stale cross-arch .o, Keccak ROL64 UB fix, zero UBSan violations |
| v2.1 | VaptVupt 1.4.0: cross-block dictionary carry, context decode prefetch, faster adaptive window trial (2.6× encode), integration API |
| v2.0 | VaptVupt 1.1.0 codec with auto hardware detection, all 5 Jasmin functions wired, AVX SIGILL fix, copy_match/litlen overflow fixes, ACSL proofs, mlock, fuzzing, canaries, AES-NI 4-block pipeline, MT decompression, adaptive compression, multi-architecture support (6 arches), --lzhp flag |
See [CHANGELOG.md](CHANGELOG.md) for detailed per-version changes.