Remove hardcoded KEY constant and accept key via CLI arguments.
Add Argon2id KDF (Bouncy Castle) with parameters matching Rust impl,
salt reading for password-derived archives, and hex/key-file parsing.
- Test 6: nested directory extraction (3+ levels deep, 4 files)
- Test 7: empty directory creation without decryption errors
- Test 8: mixed standalone files + directory pack/unpack
- All 5 original test cases preserved unchanged
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Add entryType and permissions fields to TocEntry data class
- Parse entry_type (1 byte) and permissions (2 bytes LE) in parseTocEntry
- Update version check from 1 to 2 for v1.1 format
- Handle directory entries: create dirs without decryption
- Create parent directories for files with relative paths
- Add applyPermissions() using Java File API (owner vs everyone)
- Update entry size formula comment to 104 + name_length
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Add XOR_KEY constant matching FORMAT.md Section 9.1
- Add xorHeader() function with signed byte masking (and 0xFF)
- Update decode() with XOR bootstrapping: check magic, XOR if mismatch
- Update decode() with TOC decryption: decrypt when flags bit 1 is set
- Backward compatible: plain headers and unencrypted TOC still work
- Checks prerequisites (kotlinc, java, cargo) with install instructions
- Test 1: single text file round-trip (Rust pack -> Kotlin decode)
- Test 2: multiple files with mixed content (text + 10KB binary)
- Test 3: no-compress mode for pre-compressed files
- Test 4: empty file edge case
- Test 5: large file (100 KB random data)
- SHA-256 comparison of original vs extracted for each test
- Colored output, temp directory cleanup via trap, non-zero exit on failure
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
