
Over six months, contributed to GaloisInc’s cryptol-specs and mir-json repositories by building and refining cryptographic specifications, formal verification scripts, and systems programming utilities. Delivered parameterized HMAC and XTS mode support using Cryptol and Rust, aligning implementations with cryptographic standards and expanding test coverage. Developed SAW-based verification scripts to formally prove AES correctness, improving deployment confidence. Enhanced mir-json’s portability and maintainability by optimizing memory management and generalizing macro internals for broader integer support. Focused on documentation clarity, standards compliance, and robust test infrastructure, demonstrating depth in cryptography, formal verification, and systems programming while addressing cross-platform and performance challenges.
March 2026 monthly summary for GaloisInc/mir-json: Focused on expanding the cryptol macro usability and type generalization to support broader integer types, improving flexibility and reducing boilerplate. Generalized const generics arguments to pass through types beyond usize (e.g., u64). Consolidated SliceContains specializations by removing i8 and u8-specific implementations, simplifying macro internals and improving future maintenance.
March 2026 monthly summary for GaloisInc/mir-json: Focused on expanding the cryptol macro usability and type generalization to support broader integer types, improving flexibility and reducing boilerplate. Generalized const generics arguments to pass through types beyond usize (e.g., u64). Consolidated SliceContains specializations by removing i8 and u8-specific implementations, simplifying macro internals and improving future maintenance.
February 2026 monthly summary for GaloisInc/mir-json: Delivered slice chunking support by relocating the allocation helpers to core::crucible::alloc to enable core::slice::as_chunks usage via as_chunks_unchecked. This refactor improves memory management and chunking operations for slice handling, aligning with the core crate architecture and enabling future performance optimizations.
February 2026 monthly summary for GaloisInc/mir-json: Delivered slice chunking support by relocating the allocation helpers to core::crucible::alloc to enable core::slice::as_chunks usage via as_chunks_unchecked. This refactor improves memory management and chunking operations for slice handling, aligning with the core crate architecture and enabling future performance optimizations.
November 2025: Stabilized mir-json across architectures by hardening the memchr path for x86_64, replacing dynamic CPU support checks with a reliable fallback. The change reduces translation errors, lowers CI fluctuations, and improves portability and maintainability, enabling smoother cross-platform builds and faster iteration.
November 2025: Stabilized mir-json across architectures by hardening the memchr path for x86_64, replacing dynamic CPU support checks with a reliable fallback. The change reduces translation errors, lowers CI fluctuations, and improves portability and maintainability, enabling smoother cross-platform builds and faster iteration.
Month: 2025-05 Key features delivered: Implemented SAW-based verification scripts to prove aesIsCorrect for AES-128/192/256 in GaloisInc/cryptol-specs, with accompanying README documenting usage and verification workflow. Centralized in commit ce995d35614640c64cb62c4600c46769093739bc (#294) for traceability. Major bugs fixed: None reported this month. Overall impact: Strengthens formal verification of cryptographic primitives, improving confidence in AES correctness, reducing risk for deployments, and enabling repeatable verification across AES variants. Technologies/skills demonstrated: SAW, Cryptol-specs, formal verification scripting, cryptographic proof discipline, documentation, and commit-based traceability.
Month: 2025-05 Key features delivered: Implemented SAW-based verification scripts to prove aesIsCorrect for AES-128/192/256 in GaloisInc/cryptol-specs, with accompanying README documenting usage and verification workflow. Centralized in commit ce995d35614640c64cb62c4600c46769093739bc (#294) for traceability. Major bugs fixed: None reported this month. Overall impact: Strengthens formal verification of cryptographic primitives, improving confidence in AES correctness, reducing risk for deployments, and enabling repeatable verification across AES variants. Technologies/skills demonstrated: SAW, Cryptol-specs, formal verification scripting, cryptographic proof discipline, documentation, and commit-based traceability.
April 2025 monthly summary for GaloisInc/cryptol-specs: Delivered XTS mode support with AES-128/256, including instantiation scaffolding and standards-based test vectors, expanding cryptographic capabilities and aligning with best practices for data-at-rest encryption. No major bugs fixed this month; the focus was on feature delivery and test coverage to bolster security and interoperability. This work strengthens security posture and readiness for deployment.
April 2025 monthly summary for GaloisInc/cryptol-specs: Delivered XTS mode support with AES-128/256, including instantiation scaffolding and standards-based test vectors, expanding cryptographic capabilities and aligning with best practices for data-at-rest encryption. No major bugs fixed this month; the focus was on feature delivery and test coverage to bolster security and interoperability. This work strengthens security posture and readiness for deployment.
Monthly summary for 2025-03 (GaloisInc/cryptol-specs): Delivered key cryptographic spec enhancements and critical fixes that improve standards compliance, testing, and maintainability. Highlights include parameterized HMAC specification with SHA-1 and SHA-2 instantiations, core HMAC spec and RFC-aligned test vectors; a bug fix correcting the SHA-2 message length upper bound to align with FIPS-180-4; and a documentation polish addressing a header typo in ECDSA_P521_SHA3_512.cry. These changes strengthen interoperability, reduce risk in security tooling, and improve developer productivity through clearer docs and verified test coverage.
Monthly summary for 2025-03 (GaloisInc/cryptol-specs): Delivered key cryptographic spec enhancements and critical fixes that improve standards compliance, testing, and maintainability. Highlights include parameterized HMAC specification with SHA-1 and SHA-2 instantiations, core HMAC spec and RFC-aligned test vectors; a bug fix correcting the SHA-2 message length upper bound to align with FIPS-180-4; and a documentation polish addressing a header typo in ECDSA_P521_SHA3_512.cry. These changes strengthen interoperability, reduce risk in security tooling, and improve developer productivity through clearer docs and verified test coverage.

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