Eremey Valetov
6e62a7aa28
Always assign custom master indices (>= FIRSTMASTER=2) to all files, never SuperMaster (index 0). The original's ExtractFiles() routes SuperMaster files through a code path that hangs. The original itself never uses SuperMaster in file COMPRESS records — it always creates at least one custom master, even for archives without dedup groups. For ungrouped files, a default custom master is built from the largest file's first 64KB. All files reference this master, matching the original's archive structure. The automated DOSBox-X test now validates multi-file round-trip in both directions: 4 files UC2 v3 -> original, 5 files original -> UC2 v3. All content verified byte-for-byte.
43 lines
1.6 KiB
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43 lines
1.6 KiB
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Roadmap
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=======
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The development roadmap is maintained in ``ROADMAP.md`` at the project
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root. Key phases:
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1. **Decompression MVP** — Done. Portable decompressor, CLI tool,
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CMake build system.
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2. **Original Compression Engine** — Done. LZ77+Huffman compressor.
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Full cross-tool round-trip verified in both directions: original
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UC2 Pro archives extract correctly in UC2 v3, and multi-file UC2
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v3 archives extract correctly by the original UC2 Pro. Automated
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DOSBox-X test validates 4+5 files in both directions.
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3. **Modernized Master-Block Deduplication** — In progress.
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Content-fingerprint grouping and custom master-block generation done
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(FNV-1a sampling, MASMETA cdir records, SuperMaster-compressed
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masters). Remaining: content-defined chunking, Merkle DAG,
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cross-archive dedup, near-duplicate detection.
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4. **Modern Compression Backends** — ANS entropy coding,
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zstd-inspired dictionary compression, content-aware preprocessing.
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5. **Quantum-Resistant Encryption** — CRYSTALS-Kyber + AES-256-GCM.
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6. **DOS / FreeDOS / Retro-Computing** — DJGPP toolchain, vintage
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hardware support, self-extracting archives.
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7. **Cryptographic Integrity & Timestamping** — BLAKE3 hashing,
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OpenTimestamps.
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8. **Decentralized & Cloud Integration** — IPFS pinning,
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content-addressable dedup, cloud archiving.
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9. **Zero-Knowledge Proofs** — Privacy-preserving archive verification.
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10. **Ecosystem Integrations** — libarchive plugin, streaming dedup
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ingestion, file manager plugins.
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See the full roadmap: `ROADMAP.md on GitHub
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<https://github.com/evvaletov/uc2/blob/main/ROADMAP.md>`_.
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