EasyCrypt/easycrypt
Aug 2025 – Jan 2026
3 Months active
Languages Used
EasyCryptOCaml
Technical Skills
Formal VerificationFunctional ProgrammingTheorem ProvingOCaml programmingformal verificationtesting
Xingyu Xie
PROFILE
Xingyu Xie
Namasikana Nam worked on formal verification and compiler infrastructure, focusing on the EasyCrypt/easycrypt and jasmin-lang/jasmin repositories. Over three months, they enhanced EasyCrypt’s List theory by introducing new lemmas for list access, subsequences, and concatenation, using OCaml and EasyCrypt to improve proof expressiveness and automation. In jasmin-lang/jasmin, Namasikana refined unsigned integer conversions in Ecl, addressing correctness and edge-case handling through lightweight theorem proving. They also fixed a memory binding bug in EasyCrypt’s ByeHoare procedures, adding regression tests to reinforce reliability. Their work demonstrated depth in functional programming, formal verification, and rigorous testing, resulting in more maintainable verification codebases.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
4Total
Bugs
2
Commits
4
Features
2
Lines of code
100
Activity Months3
Work History
January 2026
1 Commits
Jan 1, 2026January 2026 monthly summary for EasyCrypt/easycrypt: Focused on memory handling and soundness improvements in the ByeHoare path. Delivered a targeted bug fix in free memory handling, added regression tests, and reinforced overall reliability with tests and code hygiene.
1 Commits
Jan 1, 2026January 2026 monthly summary for EasyCrypt/easycrypt: Focused on memory handling and soundness improvements in the ByeHoare path. Delivered a targeted bug fix in free memory handling, added regression tests, and reinforced overall reliability with tests and code hygiene.
January 2026
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025: Implemented enhancements to the List module in EasyCrypt by adding subsequence lemmas, expanding reasoning about concatenation and take/drop operations. This increases expressiveness and practical usefulness for List-based formal verification tasks. Changes centered on a focused feature with a dedicated commit: 48a21c3882580d5f19fc16a4c4a671da326804b6. Result: more concise proofs and improved potential automation for list reasoning in formal verification.
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025: Implemented enhancements to the List module in EasyCrypt by adding subsequence lemmas, expanding reasoning about concatenation and take/drop operations. This increases expressiveness and practical usefulness for List-based formal verification tasks. Changes centered on a focused feature with a dedicated commit: 48a21c3882580d5f19fc16a4c4a671da326804b6. Result: more concise proofs and improved potential automation for list reasoning in formal verification.
August 2025
2 Commits • 1 Features
Aug 1, 2025Monthly summary for 2025-08: Focused on increasing formal verification expressiveness and correctness across two repositories. Delivered a new feature in EasyCrypt/easycrypt that expands List theory with targeted lemmas, and fixed a correctness issue in jasmin's eclib related to unsigned integer conversions. This work enhances business value by enabling more robust proofs, reducing edge-case risk, and improving maintainability across the verification stack.
2 Commits • 1 Features
Aug 1, 2025Monthly summary for 2025-08: Focused on increasing formal verification expressiveness and correctness across two repositories. Delivered a new feature in EasyCrypt/easycrypt that expands List theory with targeted lemmas, and fixed a correctness issue in jasmin's eclib related to unsigned integer conversions. This work enhances business value by enabling more robust proofs, reducing edge-case risk, and improving maintainability across the verification stack.
August 2025
Activity
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Quality Metrics
Correctness95.0%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
EasyCryptEclOCaml
Technical Skills
Compiler DevelopmentFormal VerificationFunctional ProgrammingOCaml programmingTheorem Provingformal verificationtesting
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
jasmin-lang/jasmin
Aug 2025 – Aug 2025
1 Month active
Languages Used
Ecl
Technical Skills
Compiler DevelopmentFormal Verification