EasyCrypt/easycrypt
Mar 2025 – Jun 2025
3 Months active
Languages Used
MLEasyCryptOCaml
Technical Skills
Compiler DevelopmentLanguage DesignLexingParsingTheory ManagementCryptographic Theory
Lucas Tabary-Maujean
PROFILE
Lucas Tabary-maujean
Worked on the EasyCrypt/easycrypt repository, delivering three features over three months focused on theory management, formal verification, and probabilistic reasoning. Developed a global visibility keyword for cloned theories, updating the lexer, parser, and internal modules in OCaml and ML to enable controlled export and reuse of subtheories. Refactored cryptographic theories by simplifying axiom dependencies and relocating lemmas to improve maintainability. Enhanced the probability rewriting system by adding new lemma support and expanding reasoning capabilities for distribution equality and inequality. Emphasized maintainability and test coverage throughout, leveraging skills in compiler development, functional programming, and formal methods without introducing new bugs.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
3Total
Bugs
0
Commits
3
Features
3
Lines of code
496
Activity Months3
Your Network
27 peopleSame Organization
@ens-paris-saclay.fr2
Work History
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for EasyCrypt/easycrypt focusing on probabilistic reasoning improvements. Delivered a new lemma support for the Probability Rewriting System (mu1_leq_eq_mu1), refactored the probability rewriting module for better maintainability, and expanded reasoning capabilities with lemmas related to distribution equality and inequality. No major bugs fixed this month. The work strengthens probabilistic proofs, improves automation in reasoning about distributions, and reduces manual effort for verification tasks.
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for EasyCrypt/easycrypt focusing on probabilistic reasoning improvements. Delivered a new lemma support for the Probability Rewriting System (mu1_leq_eq_mu1), refactored the probability rewriting module for better maintainability, and expanded reasoning capabilities with lemmas related to distribution equality and inequality. No major bugs fixed this month. The work strengthens probabilistic proofs, improves automation in reasoning about distributions, and reduces manual effort for verification tasks.
June 2025
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for EasyCrypt/easycrypt. Major bugs fixed: none this month. Key accomplishments include a SplitRO theory simplification and ChaChaPoly cleanup, with targeted refactors to reduce complexity. Overall impact: reduces axiom dependencies and improves maintainability; sets groundwork for easier future enhancements. Technologies/skills demonstrated: formal methods, theory refactor, lemma relocation, maintainability-driven refactoring, and git-based collaboration.
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for EasyCrypt/easycrypt. Major bugs fixed: none this month. Key accomplishments include a SplitRO theory simplification and ChaChaPoly cleanup, with targeted refactors to reduce complexity. Overall impact: reduces axiom dependencies and improves maintainability; sets groundwork for easier future enhancements. Technologies/skills demonstrated: formal methods, theory refactor, lemma relocation, maintainability-driven refactoring, and git-based collaboration.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary focusing on key accomplishments and business impact for EasyCrypt/easycrypt. Delivered a new global visibility keyword for cloning theories, enabling controlled export and reuse of subtheories from local theories. Implemented end-to-end changes across lexer, parser, and internal modules to support the new keyword and the semantics of theory locality. Added comprehensive unit tests to verify functionality and edge cases, improving test coverage and long-term reliability.
1 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary focusing on key accomplishments and business impact for EasyCrypt/easycrypt. Delivered a new global visibility keyword for cloning theories, enabling controlled export and reuse of subtheories from local theories. Implemented end-to-end changes across lexer, parser, and internal modules to support the new keyword and the semantics of theory locality. Added comprehensive unit tests to verify functionality and edge cases, improving test coverage and long-term reliability.
March 2025
Activity
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Quality Metrics
Correctness86.6%
Maintainability80.0%
Architecture86.6%
Performance73.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
EasyCryptMLOCaml
Technical Skills
Compiler DevelopmentCryptographic TheoryFormal VerificationFunctional ProgrammingLanguage DesignLexingParsingProbability TheorySoftware RefactoringTheorem ProvingTheory Management
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