From 2be4eabacb089ad41d261ed28a9865ad6e206d2e Mon Sep 17 00:00:00 2001 From: NikitolProject Date: Wed, 25 Feb 2026 00:05:25 +0300 Subject: [PATCH] docs(02-02): complete archive commands plan Co-Authored-By: Claude Opus 4.6 --- .planning/REQUIREMENTS.md | 8 +- .planning/ROADMAP.md | 8 +- .planning/STATE.md | 23 ++-- .../phases/02-core-archiver/02-02-SUMMARY.md | 107 ++++++++++++++++++ 4 files changed, 128 insertions(+), 18 deletions(-) create mode 100644 .planning/phases/02-core-archiver/02-02-SUMMARY.md diff --git a/.planning/REQUIREMENTS.md b/.planning/REQUIREMENTS.md index 2fa5aa1..bd7c0ef 100644 --- a/.planning/REQUIREMENTS.md +++ b/.planning/REQUIREMENTS.md @@ -37,8 +37,8 @@ ### CLI Archiver (Архиватор) - [x] **CLI-01**: Rust CLI утилита для создания архивов (Linux/macOS) -- [ ] **CLI-02**: Упаковка нескольких файлов (тексты + APK) в один архив -- [ ] **CLI-03**: Подкоманды: pack, unpack (для тестирования), inspect (для отладки) +- [x] **CLI-02**: Упаковка нескольких файлов (тексты + APK) в один архив +- [x] **CLI-03**: Подкоманды: pack, unpack (для тестирования), inspect (для отладки) ### Kotlin Decoder (Kotlin декодер) @@ -111,8 +111,8 @@ | INT-01 | Phase 2 | Complete | | INT-02 | Phase 3 | Pending | | CLI-01 | Phase 2 | Complete | -| CLI-02 | Phase 2 | Pending | -| CLI-03 | Phase 2 | Pending | +| CLI-02 | Phase 2 | Complete | +| CLI-03 | Phase 2 | Complete | | KOT-01 | Phase 4 | Pending | | KOT-02 | Phase 4 | Pending | | KOT-03 | Phase 4 | Pending | diff --git a/.planning/ROADMAP.md b/.planning/ROADMAP.md index 3fa43ba..ed1801c 100644 --- a/.planning/ROADMAP.md +++ b/.planning/ROADMAP.md @@ -13,7 +13,7 @@ Build a custom encrypted archive format that standard tools cannot recognize or Decimal phases appear between their surrounding integers in numeric order. - [x] **Phase 1: Format Specification** - Document the complete binary format before writing any code (completed 2026-02-24) -- [ ] **Phase 2: Core Archiver** - Rust CLI that compresses, encrypts, and packs files into the custom format +- [x] **Phase 2: Core Archiver** - Rust CLI that compresses, encrypts, and packs files into the custom format (completed 2026-02-24) - [ ] **Phase 3: Round-Trip Verification** - Rust unpack command + golden test vectors + unit tests proving byte-identical round-trips - [ ] **Phase 4: Kotlin Decoder** - Android 13 decoder using javax.crypto and java.util.zip (primary extraction path) - [ ] **Phase 5: Shell Decoder** - Busybox shell script decoder using dd/xxd/openssl/gunzip (fallback extraction) @@ -48,8 +48,8 @@ Plans: **Plans**: 2 plans Plans: -- [ ] 02-01-PLAN.md -- Project scaffolding, binary format types, crypto pipeline, and compression module -- [ ] 02-02-PLAN.md -- Pack, inspect, and unpack commands with full archive orchestration +- [x] 02-01-PLAN.md -- Project scaffolding, binary format types, crypto pipeline, and compression module +- [x] 02-02-PLAN.md -- Pack, inspect, and unpack commands with full archive orchestration ### Phase 3: Round-Trip Verification **Goal**: Proven byte-identical round-trips through the Rust unpack command, backed by golden test vectors @@ -115,7 +115,7 @@ Phases execute in numeric order: 1 -> 2 -> 3 -> 4 -> 5 -> 6 | Phase | Plans Complete | Status | Completed | |-------|----------------|--------|-----------| | 1. Format Specification | 1/1 | Complete | 2026-02-24 | -| 2. Core Archiver | 1/2 | In Progress | - | +| 2. Core Archiver | 2/2 | Complete | 2026-02-24 | | 3. Round-Trip Verification | 0/2 | Not started | - | | 4. Kotlin Decoder | 0/1 | Not started | - | | 5. Shell Decoder | 0/1 | Not started | - | diff --git a/.planning/STATE.md b/.planning/STATE.md index 911aa9e..d8a660f 100644 --- a/.planning/STATE.md +++ b/.planning/STATE.md @@ -9,18 +9,18 @@ See: .planning/PROJECT.md (updated 2026-02-24) ## Current Position -Phase: 2 of 6 (Core Archiver) -- IN PROGRESS -Plan: 1 of 2 in current phase -- COMPLETE -Status: Plan 02-01 complete, ready for Plan 02-02 -Last activity: 2026-02-24 -- Project foundation with crypto pipeline +Phase: 2 of 6 (Core Archiver) -- COMPLETE +Plan: 2 of 2 in current phase -- COMPLETE +Status: Phase 2 complete, ready for Phase 3 +Last activity: 2026-02-24 -- Pack/unpack/inspect archive commands -Progress: [██░░░░░░░░] 25% +Progress: [███░░░░░░░] 33% ## Performance Metrics **Velocity:** -- Total plans completed: 2 -- Average duration: 5.5 min +- Total plans completed: 3 +- Average duration: 4.3 min - Total execution time: 0.2 hours **By Phase:** @@ -28,10 +28,10 @@ Progress: [██░░░░░░░░] 25% | Phase | Plans | Total | Avg/Plan | |-------|-------|-------|----------| | 1. Format Specification | 1 | 7 min | 7 min | -| 2. Core Archiver | 1/2 | 4 min | 4 min | +| 2. Core Archiver | 2/2 | 6 min | 3 min | **Recent Trend:** -- Last 5 plans: 7min, 4min +- Last 5 plans: 7min, 4min, 2min - Trend: improving *Updated after each plan completion* @@ -51,6 +51,9 @@ Recent decisions affecting current work: - Phase 1: HMAC scope = IV (16 bytes) || ciphertext (encrypted_size bytes) - Phase 2: Used rand::Fill::fill() for IV generation (correct rand 0.9 API) - Phase 2: Manual binary serialization with to_le_bytes/from_le_bytes (no serde/bincode) +- Phase 2: Filename-only entry names (not full paths) for archive portability +- Phase 2: HMAC failure skips file and continues; SHA-256 mismatch warns but writes +- Phase 2: Flags bit 0 set only when at least one file is actually compressed ### Pending Todos @@ -65,5 +68,5 @@ None yet. ## Session Continuity Last session: 2026-02-24 -Stopped at: Completed 02-01-PLAN.md (Project foundation with crypto pipeline) +Stopped at: Completed 02-02-PLAN.md (Pack/unpack/inspect archive commands) Resume file: None diff --git a/.planning/phases/02-core-archiver/02-02-SUMMARY.md b/.planning/phases/02-core-archiver/02-02-SUMMARY.md new file mode 100644 index 0000000..181a4f6 --- /dev/null +++ b/.planning/phases/02-core-archiver/02-02-SUMMARY.md @@ -0,0 +1,107 @@ +--- +phase: 02-core-archiver +plan: 02 +subsystem: archive, cli +tags: [aes-256-cbc, hmac-sha256, gzip, binary-format, pack, unpack, inspect, encrypt-then-mac] + +# Dependency graph +requires: + - phase: 02-core-archiver + plan: 01 + provides: "Crypto pipeline (encrypt/decrypt/HMAC/SHA-256), format types (Header/TocEntry serialization), compression (gzip/heuristic), CLI skeleton, hardcoded key" +provides: + - "pack() function: two-pass archive writer producing FORMAT.md-compliant archives" + - "unpack() function: HMAC-first verification, AES-256-CBC decryption, optional gzip decompression, SHA-256 integrity check" + - "inspect() function: metadata display (sizes, offsets, IVs, HMACs, SHA-256) without decryption" + - "CLI dispatch wiring all three commands to archive module" + - "Directory traversal protection in unpack" +affects: [03-round-trip-verification, 04-kotlin-decoder, 05-shell-decoder, 06-obfuscation] + +# Tech tracking +tech-stack: + added: [] + patterns: [two-pass archive writing (process then compute offsets), HMAC-before-decrypt verification order, filename-only entry names from full paths] + +key-files: + created: [] + modified: + - src/archive.rs + - src/main.rs + +key-decisions: + - "Use filename-only (not full path) as archive entry name to keep entries portable" + - "Directory traversal protection: reject names starting with / or containing .." + - "HMAC failure skips file and continues; SHA-256 mismatch warns but still writes file" + - "Flags byte bit 0 set only when at least one file is actually compressed" + +patterns-established: + - "Two-pass archive writing: Pass 1 processes files in memory, Pass 2 computes offsets and writes sequentially" + - "HMAC verified before decryption attempt (encrypt-then-MAC per FORMAT.md Section 10)" + - "Per-file error handling: HMAC/SHA-256 failures increment error count, non-zero exit on any errors" + - "Inline TOC size computation: sum of (101 + name.len()) per file" + +requirements-completed: [CLI-02, CLI-03] + +# Metrics +duration: 2min +completed: 2026-02-24 +--- + +# Phase 2 Plan 2: Archive Commands Summary + +**Pack/unpack/inspect commands with AES-256-CBC encryption, HMAC-SHA-256 verification, gzip compression, and FORMAT.md-compliant binary output** + +## Performance + +- **Duration:** 2 min +- **Started:** 2026-02-24T21:01:22Z +- **Completed:** 2026-02-24T21:03:40Z +- **Tasks:** 1 +- **Files modified:** 2 + +## Accomplishments +- Fully functional `encrypted_archive` binary with pack, unpack, and inspect commands +- Round-trip verified: packed files are byte-identical after unpacking (text + binary) +- HMAC tamper detection verified: flipping a ciphertext byte triggers rejection with non-zero exit +- Compression auto-detection verified: .apk files stored without gzip (compression_flag=0, flags=0x00) +- Archive starts with magic bytes 0x00 0xEA 0x72 0x63 (not recognized as any standard format) + +## Task Commits + +Each task was committed atomically: + +1. **Task 1: Implement pack, inspect, unpack commands and wire CLI** - `be50707` (feat) + +## Files Created/Modified +- `src/archive.rs` - Pack, unpack, and inspect orchestration (237 lines): two-pass pack writer, HMAC-first unpack, metadata inspect +- `src/main.rs` - CLI dispatch wiring Commands enum to archive::pack/unpack/inspect + +## Decisions Made +- **Filename-only entries:** Archive stores only the filename (not the full path) for portability across systems +- **Directory traversal protection:** Reject filenames starting with `/` or containing `..` during unpack (Rule 2 - security) +- **Error continuation:** HMAC failure skips the file; SHA-256 mismatch warns but still writes (per FORMAT.md Section 10 guidance) +- **Flags byte logic:** Header flags bit 0 is set only when at least one file in the archive has compression_flag=1 + +## Deviations from Plan + +None - plan executed exactly as written. + +## Issues Encountered +None. + +## User Setup Required +None - no external service configuration required. + +## Next Phase Readiness +- Phase 2 (Core Archiver) is complete: all modules wired and functional +- Ready for Phase 3 (Round-trip verification / integration tests) +- Two dead-code warnings remain for `format::entry_size` and `format::compute_toc_size` helper functions (usable by future code) +- All obfuscation features deferred to Phase 6 as per ROADMAP + +## Self-Check: PASSED + +All 2 modified files verified present. Task commit (be50707) verified in git log. + +--- +*Phase: 02-core-archiver* +*Completed: 2026-02-24*