Eremey Valetov
c731bd75c2
Testing revealed that custom Huffman trees from our treegen cause the original UC2 Pro to hang even for single-file archives. The original's ASM decompressor kernel (nuke1) has undocumented assumptions about tree shapes that our treegen doesn't match. Default tree is the only working option for backward compatibility. Multi-file extraction remains a separate open issue (hangs even with default tree, while listing works).
44 lines
1.6 KiB
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44 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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Cross-tool round-trip verified: original UC2 Pro archives extract
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correctly in UC2 v3. Reverse direction: single-file UC2 v3
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archives are readable by the original (listing + extraction).
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Multi-file extraction hangs due to undocumented assumptions in the
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original's ASM decompressor kernel.
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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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