cryspen/hax
Feb 2025 – Mar 2025
2 Months active
Languages Used
F*
Technical Skills
Formal VerificationLemma ProvingRust PrimitivesTheorem Proving
mamonet
PROFILE
Mamonet
Worked on formal verification of Rust primitive integer operations in the cryspen/hax repository, focusing on strengthening correctness proofs for bitwise and arithmetic behaviors. Enhanced the Logand Lemma by specifying bitwise AND behavior for equal operands and cases involving bitwise NOT, improving verification coverage for edge scenarios. Developed and integrated the logor_disjoint lemma, establishing conditions under which bitwise OR equals the sum of operands, thereby supporting safer low-level code and optimizations. Utilized F*, Rust, and formal methods to deliver precise, reproducible changes, emphasizing lemma proving and theorem formalization to reduce potential defects in integer arithmetic and downstream components.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
2Total
Bugs
0
Commits
2
Features
2
Lines of code
7
Activity Months2
Work History
March 2025
1 Commits • 1 Features
Mar 1, 2025Month: 2025-03 — Focused on formal verification and integer arithmetic reasoning in cryspen/hax. Delivered a new lemma logor_disjoint for Rust primitive integer types, plus its integration in Rust_primitives.Integers. No major bug fixes reported this month. Overall impact: strengthened formal guarantees around bitwise/arithmetical equivalence, enabling safer low-level code and potential optimizations. Technologies/skills: formal methods, lemma formalization, Rust, disjointness reasoning, Git/version control.
1 Commits • 1 Features
Mar 1, 2025Month: 2025-03 — Focused on formal verification and integer arithmetic reasoning in cryspen/hax. Delivered a new lemma logor_disjoint for Rust primitive integer types, plus its integration in Rust_primitives.Integers. No major bug fixes reported this month. Overall impact: strengthened formal guarantees around bitwise/arithmetical equivalence, enabling safer low-level code and potential optimizations. Technologies/skills: formal methods, lemma formalization, Rust, disjointness reasoning, Git/version control.
March 2025
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 — Cryspen HAX: Strengthened formal verification for Rust primitives by delivering enhancements to the Logand Lemma. Focused on improving correctness proofs for integer operations and bitwise behavior in Rust_primitives, enabling more robust verification coverage and reducing risk in downstream components.
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 — Cryspen HAX: Strengthened formal verification for Rust primitives by delivering enhancements to the Logand Lemma. Focused on improving correctness proofs for integer operations and bitwise behavior in Rust_primitives, enabling more robust verification coverage and reducing risk in downstream components.
Activity
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Quality Metrics
Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
F*
Technical Skills
Formal VerificationLemma ProvingRust PrimitivesTheorem Proving
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