aws/aws-lc
Nov 2024 – Sep 2025
8 Months active
Languages Used
CC++GoShellAssemblyCMakeYAMLbash
Technical Skills
C DevelopmentC++ DevelopmentCryptographyPerformance BenchmarkingBuild SystemsCI/CD
Andrew Hopkins
PROFILE
Andrew Hopkins
Andrew Hopkins contributed to aws/aws-lc by developing and refining cryptographic benchmarking, testing infrastructure, and release management features. He enhanced performance evaluation for random number generators and cryptographic algorithms using C and C++, and improved build reproducibility and CI reliability through build system modernization and error handling. Andrew centralized FIPS failure reporting, expanded test coverage, and introduced assembly language parsing improvements for ARMv8, supporting robust low-level debugging. His work included integrating encoding support, aligning versioning for smooth releases, and strengthening header hygiene. These efforts resulted in a more maintainable, reliable, and performance-focused codebase, demonstrating depth in system programming and cryptography.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
35Total
Bugs
4
Commits
35
Features
16
Lines of code
5,823
Activity Months8
Your Network
1408 people
Work History
September 2025
1 Commits • 1 Features
Sep 1, 2025Purpose-built monthly summary for 2025-09 focusing on release readiness for the aws/aws-lc repository. The primary activity was preparing the 1.60.0 release with encoding support, ensuring versioning, changelog alignment, and packaging readiness for a smooth rollout.
1 Commits • 1 Features
Sep 1, 2025Purpose-built monthly summary for 2025-09 focusing on release readiness for the aws/aws-lc repository. The primary activity was preparing the 1.60.0 release with encoding support, ensuring versioning, changelog alignment, and packaging readiness for a smooth rollout.
September 2025
August 2025
3 Commits • 2 Features
Aug 1, 2025August 2025 monthly summary for aws/aws-lc focused on release readiness, debugging improvements, and code quality enhancements. Prepared for the v1.57.0 release by aligning version metadata across CMakeLists.txt, AWSLC_VERSION_NUMBER_STRING, and AWSLC_API_VERSION, enabling a smooth downstream consumer experience and consistent version signaling.
August 2025
3 Commits • 2 Features
Aug 1, 2025August 2025 monthly summary for aws/aws-lc focused on release readiness, debugging improvements, and code quality enhancements. Prepared for the v1.57.0 release by aligning version metadata across CMakeLists.txt, AWSLC_VERSION_NUMBER_STRING, and AWSLC_API_VERSION, enabling a smooth downstream consumer experience and consistent version signaling.
April 2025
3 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for aws/aws-lc focusing on reliability, benchmarking enhancements, and broadening test coverage to enable faster validation of cryptographic features in CI and FIPS modes.
3 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for aws/aws-lc focusing on reliability, benchmarking enhancements, and broadening test coverage to enable faster validation of cryptographic features in CI and FIPS modes.
April 2025
March 2025
11 Commits • 5 Features
Mar 1, 2025March 2025 saw a concentrated focus on build-system modernization, FIPS integration stability, performance benchmarking, and release readiness for aws/aws-lc, with targeted fixes to improve robustness and CI reliability. Deliverables were aligned with enabling dependency readiness, cross-platform behavior, and faster time-to-release.
March 2025
11 Commits • 5 Features
Mar 1, 2025March 2025 saw a concentrated focus on build-system modernization, FIPS integration stability, performance benchmarking, and release readiness for aws/aws-lc, with targeted fixes to improve robustness and CI reliability. Deliverables were aligned with enabling dependency readiness, cross-platform behavior, and faster time-to-release.
February 2025
12 Commits • 4 Features
Feb 1, 2025February 2025 monthly summary: Focused on reliability, security validation, and performance benchmarking for aws/aws-lc. Delivered key features to improve build reproducibility, centralized and enhanced FIPS failure handling, expanded cryptographic test coverage and benchmarking, and enhanced the Delocator tool for deeper assembly analysis. Resulted in reduced build noise, clearer failure signals, broader test scope, and a more robust performance baseline.
12 Commits • 4 Features
Feb 1, 2025February 2025 monthly summary: Focused on reliability, security validation, and performance benchmarking for aws/aws-lc. Delivered key features to improve build reproducibility, centralized and enhanced FIPS failure handling, expanded cryptographic test coverage and benchmarking, and enhanced the Delocator tool for deeper assembly analysis. Resulted in reduced build noise, clearer failure signals, broader test scope, and a more robust performance baseline.
February 2025
January 2025
2 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for repo aws/aws-lc focusing on delivery quality, reliability, and maintainability. Delivered two targeted improvements to strengthen SSL path diagnostics and header hygiene. 1) Enhanced SSL error diagnostics: In bssl_shim.cc, added detailed logging for SSL_ERROR_SYSCALL by capturing errno and its description, enabling faster root-cause analysis of test failures. Commit: 6aa30a9367ed816434ed28c2ddb01271ca882f1c (Add more logging for SSL_ERROR_SYSCALL errors in bssl_shim.cc (#2079)). 2) Code robustness: Unique include guards for ML-KEM internal headers to prevent header inclusion conflicts and ensure consistent builds. Commit: 71809b1502f2f87078e148449fda373fc7e39929 (Update ML-KEM's internal header files to use unique include guards (#2078)). These changes reduce debugging time, improve stability of SSL paths, and strengthen long-term maintainability across the aws/aws-lc codebase.
January 2025
2 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for repo aws/aws-lc focusing on delivery quality, reliability, and maintainability. Delivered two targeted improvements to strengthen SSL path diagnostics and header hygiene. 1) Enhanced SSL error diagnostics: In bssl_shim.cc, added detailed logging for SSL_ERROR_SYSCALL by capturing errno and its description, enabling faster root-cause analysis of test failures. Commit: 6aa30a9367ed816434ed28c2ddb01271ca882f1c (Add more logging for SSL_ERROR_SYSCALL errors in bssl_shim.cc (#2079)). 2) Code robustness: Unique include guards for ML-KEM internal headers to prevent header inclusion conflicts and ensure consistent builds. Commit: 71809b1502f2f87078e148449fda373fc7e39929 (Update ML-KEM's internal header files to use unique include guards (#2078)). These changes reduce debugging time, improve stability of SSL paths, and strengthen long-term maintainability across the aws/aws-lc codebase.
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 — aws/aws-lc focused on stabilizing the testing infrastructure and CI to improve reliability, speed up feedback cycles, and reduce maintenance overhead. Key changes modernized the testing workflow, removed duplication, and centralized test orchestration within the real module wrapper, enabling more robust validation of cryptographic code across the repo.
2 Commits • 1 Features
Dec 1, 2024December 2024 — aws/aws-lc focused on stabilizing the testing infrastructure and CI to improve reliability, speed up feedback cycles, and reduce maintenance overhead. Key changes modernized the testing workflow, removed duplication, and centralized test orchestration within the real module wrapper, enabling more robust validation of cryptographic code across the repo.
December 2024
November 2024
1 Commits • 1 Features
Nov 1, 2024Month: 2024-11 — aws/aws-lc contributions focused on expanding performance evaluation capabilities for RNG components. Delivered a new benchmark suite for CRYPTO_sysrand and CRYPTO_sysrand_for_seed within speed.cc, refactoring the RNG benchmark to support multiple functions, and updating internal headers and speed.cc to run and integrate the new benchmarks. This work enhances performance visibility, enables direct comparisons of RNG methods, and guides targeted optimizations in cryptographic RNG paths.
November 2024
1 Commits • 1 Features
Nov 1, 2024Month: 2024-11 — aws/aws-lc contributions focused on expanding performance evaluation capabilities for RNG components. Delivered a new benchmark suite for CRYPTO_sysrand and CRYPTO_sysrand_for_seed within speed.cc, refactoring the RNG benchmark to support multiple functions, and updating internal headers and speed.cc to run and integrate the new benchmarks. This work enhances performance visibility, enables direct comparisons of RNG methods, and guides targeted optimizations in cryptographic RNG paths.
Activity
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Quality Metrics
Correctness92.6%
Maintainability89.4%
Architecture88.8%
Performance84.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
AssemblyCC++CMakeGoShellYAMLbashyaml
Technical Skills
ARMv8 architectureAssembly Language ParsingAssembly languageBenchmarkingBuild System ConfigurationBuild SystemsBuild systemsC DevelopmentC ProgrammingC programmingC++ DevelopmentC/C++ DevelopmentCI/CDCode RefactoringCompiler Bug Workarounds
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