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ST3GG
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Author SHA1 Message Date
GangGreenTemperTatum 7ef3ec5368
Add comprehensive test suite and fix error handling in MCP server 
Tests (70 tests, all passing):
- TestEncode: 12 tests — text, file, encryption, channels, strategies,
  bit depth, compression, default paths, error cases
- TestDecode: 12 tests — auto-detect, manual config, encryption,
  wrong password, binary payloads, strategy-specific behavior
- TestAnalyze: 5 tests — clean/stegged images, full mode, channel fields
- TestCapacity: 4 tests — default, single channel, high bits, errors
- TestDetect: 3 tests — clean, stegged, missing image
- TestChunks: 7 tests — tEXt/zTXt/iTXt/private chunk inject+read
- TestInjectExif: 6 tests — fields, custom JSON, validation
- TestInjectionFilename: 4 tests — templates, count, channels
- TestJailbreakTemplates: 2 tests — listing and preview truncation
- TestAnalysisTools: 7 tests — rs_analysis, chi_square, unicode steg,
  unknown action, missing file
- TestCryptoStatus: 2 tests — availability and method listing
- TestIntegration: 6 tests — full pipeline, encrypted pipeline,
  chunk+steg coexistence, large payload, sequential strategy, EXIF

MCP server fixes:
- All tools now return JSON errors instead of raising exceptions
- Custom JSON encoder handles numpy bool_/integer/floating/ndarray
- Discovered upstream bug: spread and randomized strategies fail to
  decode (steg_core.py issue, not MCP server)
 2026-06-15 08:38:30 -04:00
GangGreenTemperTatum c337ab7095
Add MCP server for AI agent integration 
Expose 13 steganography tools via Model Context Protocol (stdio):
- stegg_encode/decode: LSB steg with 15 channel presets, 4 strategies, AES-256-GCM
- stegg_analyze: chi-square anomaly detection with verdict scoring
- stegg_detect: STEG v3 header auto-detection
- stegg_capacity: carrier capacity calculation
- stegg_inject_chunk/read_chunks: PNG metadata chunk injection and reading
- stegg_inject_exif: EXIF/PNG metadata field injection via PIL
- stegg_injection_filename: prompt-injection filename generation for AI red-teaming
- stegg_jailbreak_templates: list available jailbreak prompt templates
- stegg_analysis_tool/list_analysis_tools: access to 264+ detection functions
- stegg_crypto_status: encryption method availability check

Install with: pip install stegg[mcp]
Run with: stegg-mcp (or python mcp_server.py)
 2026-06-15 08:25:42 -04:00
pliny 7db0938950
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pliny 0665a9e81b
Change license from Apache-2.0 to AGPL 3.0 2026-03-30 10:48:52 -07:00
pliny ac664dab98
Add LICENSE file 2026-03-30 10:47:40 -07:00
pliny 9eeb5dc80c
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pliny bd9ec180f8
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pliny 9f264b5aad
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pliny 487f6e9316
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pliny 450cf9e458
Rename compressed_egg_image.png to stegg.png 2024-10-13 06:03:17 -04:00
pliny 59e73b19f7
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pliny 5a95e984d8
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