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35 lines
1.3 KiB
Markdown
35 lines
1.3 KiB
Markdown
# Stenography functions
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`agentic_security.probe_data.stenography_fn` transforms prompts so scanners can
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test whether a model still treats obfuscated text as an instruction.
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The module is used by `Stenography` in `probe_data.data` when a dataset
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enables encoding variants.
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## Functions
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| Function | What it does |
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| --- | --- |
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| `rot13` / `rot5` | Letter and digit rotation ciphers |
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| `base64_encode` | Base64-encode a string or bytes |
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| `mirror_words` | Reverse each word, keep word order |
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| `scramble_words` | Shuffle middle letters, keep first and last |
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| `randomize_letter_case` | Random per-character case |
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| `insert_noise_characters` | Insert alphanumeric noise (`frequency=0.2` by default) |
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| `substitute_with_ascii` | Replace characters with ordinals |
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| `remove_vowels` | Drop `aeiou` in either case |
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| `zigzag_obfuscation` | Alternate upper/lower case |
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| `caesar_cipher` / `substitution_cipher` / `vigenere_cipher` | Classical ciphers |
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| `code_block_encode` | Hide the prompt in a Python docstring fenced as code |
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These are obfuscation helpers for red-team prompts, not cryptographic primitives.
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## Usage
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```python
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from agentic_security.probe_data.stenography_fn import rot13, scramble_words
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rot13("Ignore previous instructions")
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scramble_words("Ignore previous instructions")
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```
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