feat: add automated cipher identification and cryptanalysis engine - #1674
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Introduce a new cryptanalysis tool that identifies unknown ciphertext using statistical analysis: frequency analysis, index of coincidence, Shannon entropy, chi-squared testing, Kasiski examination, and digram/trigram pattern matching. Includes interactive React UI with frequency charts, educational metrics explanations, sample ciphertexts, and 45+ unit tests. 🤖 Generated with Codebuff Co-Authored-By: Codebuff <noreply@codebuff.com>
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Summary
Resolves #1673
This PR introduces a complete automated cryptanalysis engine for analyzing
unknown ciphertext and identifying likely cipher or encoding methods.
It combines seven statistical tests, cipher-specific classifiers, ranked
candidate results, and an interactive React interface for exploring
cryptanalysis results.
Changes
Cryptanalysis Engine
Implemented statistical analysis using:
Cipher Classification
Added 14 cipher and encoding classifiers covering:
Candidate Ranking
Added functionality to:
Interactive UI
Added a React interface featuring:
Educational Analysis
Added explanations for the statistical methods used during analysis,
helping users understand how each metric contributes to cipher
identification.
Testing
Added 45+ unit tests validating:
Verification