feat: add substitution cipher breaker with simulated annealing - #1672
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Automated cryptanalysis tool for monoalphabetic substitution ciphers using frequency analysis seed, hill climbing with simulated annealing, and quadgram log-likelihood scoring. Includes interactive React UI with convergence charts, key mapping visualization, and 30+ unit tests. 🤖 Generated with Codebuff Co-Authored-By: Codebuff <noreply@codebuff.com>
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Summary
Resolves #1671
This PR introduces a complete substitution cipher breaker using frequency
analysis for initial key seeding, hill climbing and simulated annealing for
optimization, and quadgram fitness scoring for evaluating candidate plaintext.
It also adds an interactive React interface for visualizing the breaking
process and comparing candidate solutions.
Changes
Cipher Breaking Engine
Implemented:
Optimization
Added a hybrid optimization approach combining:
Candidate Scoring
Added quadgram-based fitness scoring to evaluate and rank decrypted
plaintext candidates.
Interactive UI
Added a React interface featuring:
Visualization
Added tools for viewing:
Testing
Added 30+ unit tests covering:
Verification