October 2025 — Focused on delivering robust HOL-Light proof infrastructure, cross-architecture portability, and CI-driven quality improvements for the pq-code-package/mlkem-c-aarch64 repository. Key features include robust HOL-Light proof scripts (no hardcoded lengths, proofs run until target PC, simplifications to poly_tobytes and basemul proofs), environment alignment with updated HOL-Light and s2n-bignum, AArch64 invNTT scaling integration, RV64 vector-length adaptability with CI tests and bounds assertions, and backend cleanup/optimizations (lazy reduction in invNTT, removal of unnecessary reductions, and explicit unsigned-to-signed casts). Additional efforts covered FIPS202 state machine with examples and CBMC verification enhancements, plus ongoing code hygiene and build tooling improvements. Major bugs fixed include a typo in MLKEM sampling, a comment break caused by a debug assertion, and allowing redundant declarations in the monobuild multilevel example. Overall, these efforts increased proof reliability, broadened hardware support, and accelerated validation cycles, delivering tangible business value in reliability, performance, and developer productivity. Technologies/skills demonstrated include HOL-Light proof engineering, cross-architecture optimization (AArch64/RV64), NTT/invNTT, cryptographic workflow support (FIPS202), sign-conversion safety, CI/CD automation, and build-system modernization (Makefiles, CI pipelines).

September 2025 monthly summary focusing on delivering security hardening, robust MLKEM testing, cross-platform build reliability, and codebase cleanliness across the aws/aws-lc, pq-code-package/mlkem-c-aarch64, and pq-code-package/mldsa-native repositories. Achievements prioritized security posture, test coverage, and maintainability to enable safer releases and faster integration cycles.

Month: 2025-08 — Concise monthly summary highlighting key features, major fixes, overall impact, and technologies demonstrated across aws/aws-lc and pq-code-package/mlkem-c-aarch64. Focused on delivering business value through performance improvements, cross-platform robustness, and improved development velocity.

July 2025 performance snapshot highlighting architecture-wide feature delivery, build/CI hardening, and cross-architecture optimization with measurable business impact. The month focused on delivering high-value features, improving reliability, and enabling ARM64-optimized ML workflows, while cleaning up documentation and naming conventions for long-term maintainability.

June 2025 focused on strengthening automation, portability, and cross-repo integration across pq-code-package/mlkem-c-aarch64 and aws/aws-lc. Key features delivered include autogen improvements with validation checks and a monolithic assembly file, AWS-LC integration and file restructuring to streamline upstream alignment, and MLKem native monobuild support with updated examples and documentation. Notable bug fixes addressed autogen SCU file generation reliability, CBMC performance improvements for polyvec_basemul_acc_montgomery_cached, and several build-path corrections (e.g., HOL-Light Makefile paths) alongside AArch64 header cleanup. Overall impact: improved build stability, reduced maintenance burden, and smoother cross-repo integration that enables faster delivery. Technologies/skills demonstrated include C and assembly code handling, Makefile orchestration, autogen scripting, CBMC tooling, and cross-repo integration with AWS-LC and MLKem-native workflows.

May 2025 delivered cross-architecture cryptographic work, formal verification progress, and governance improvements across the pq-code-package and AWS-LC repos. Key outcomes include AArch64 performance and verification enhancements for Keccak, security hardening for rejection sampling, and backend guard updates; substantial HOL-Light/CBMC verification work with rej_uniform and basemul proofs, plus mulcache bounding and NTT/invNTT updates; CI automation and cross-architecture testing expanded to cover aarch64, x86_64, riscv64, and ppc64le; licensing governance and repository hygiene improvements; and documentation automation, including autogen/bibliographies and READMEs reflecting AArch64 verification.

April 2025 monthly summary: Delivered major configuration, CI, and cross-architecture enhancements across MLKEM-related repos, enabling faster iteration, improved reliability, and stronger compliance. The work focused on business value through clearer configuration, robust testing, and scalable build processes, plus extended platform support and licensing alignment.

March 2025 monthly performance summary: Delivered substantial cryptographic backend enhancements and formal verification progress across multiple repositories, with a focus on AArch64 Keccak-F1600, HOL-Light proofs, and CI automation. Achievements span implementation, proofs, backend consolidation, and tooling improvements that collectively improve security, reliability, and development velocity for cryptographic components and their verification pipelines.

February 2025 focused on strengthening code hygiene, portability, verification, and CI reliability across two primary repos (pq-code-package/mlkem-c-aarch64 and aws/aws-lc). Delivered macro/namespacing improvements, autogen tooling, build/test infrastructure, and targeted bug fixes to reduce risk, boost performance, and simplify future maintenance.

January 2025 monthly summary for the pq-code-package/mlkem-c-aarch64 repository. Focused on delivering business value through build reliability, performance benchmarking capabilities, testing improvements, and architectural refactors across the AArch64 mlkem codebase. Key features include enabling EXEC_WRAPPER passthrough for binary execution, adding Makefile benchmark targets, consolidating the build system (mk) into components.mk, and major testing infrastructure cleanups. Monolithic build enhancements and header generation improvements were implemented to improve debuggability and reduce maintenance. CI pipelines were strengthened with a separate nix environment setup workflow. A critical Makefile symbol-check race condition was fixed to improve CI stability. These efforts reduce cycle time, improve build repeatability, and establish a stronger foundation for multi-level builds and future architecture support across the project.

December 2024 highlights for the pq-code-package/mlkem-c-aarch64 repository: delivered a comprehensive set of performance, correctness, and maintainability improvements across the AVX2 backend, API surface, FIPS202 integration, formal verification scaffolding, and build/CI tooling. Key work focused on documenting and tightening NTT/invNTT bounds, moving critical bounds checks for poly mulcache, modernizing SHAKe and FIPS202 usage with multi-context support, expanding CBMC proofs and reorganizing proof scaffolding, and consolidating build, packaging, and CI configurations for reproducibility. Targeted AArch64 backend cleanup and testing further improved portability and reliability. These efforts translate to stronger cryptographic correctness guarantees, better cross-architecture performance, and smoother developer workflows with clearer documentation and packaging.

November 2024 focused on expanding formal verification coverage and CI efficiency for the pq-code-package/mlkem-c-aarch64 project. Delivered new CBMC specs and proofs for core polyvec operations and cryptographic primitives, hardened verification harnesses, and implemented CI optimizations to run proofs at scale across MLKEM configurations. These changes increased security assurances, reduced verification time, and improved maintainability across architectures (AArch64, AVX2, x86_64).