intel/intel-ipsec-mb
Dec 2024 – Apr 2026
16 Months active
Languages Used
AssemblyCCMakeJSONC++
Technical Skills
AVX-512AVX2 IntrinsicsAssembly OptimizationCryptographyLow-level OptimizationAVX512 Intrinsics
Michael Phelan
PROFILE
Michael Phelan
Worked extensively on the intel-ipsec-mb cryptographic library, delivering high-performance SIMD-accelerated features and optimizations across SSE, AVX2, and AVX-512 backends. Focused on cryptographic primitives such as AES-GCM, HMAC-SHA, SNOW3G, and Kasumi, the work included assembly-level performance tuning, API refactoring, and expanded test coverage to improve throughput, maintainability, and reliability. Leveraged C, assembly language, and AVX2 intrinsics to implement parallel processing, modular APIs, and robust validation workflows. Addressed cross-architecture compatibility and streamlined codebases, enabling secure, efficient IPsec workloads. The engineering approach emphasized maintainable design, rigorous testing, and continuous performance improvements within the intel/intel-ipsec-mb repository.
Overall Statistics
Feature vs Bugs
73%Features
Repository Contributions
123Total
Bugs
9
Commits
123
Features
24
Lines of code
370,842
Activity Months16
Your Network
2269 peopleSame Organization
@intel.com2260
Work History
April 2026
7 Commits • 2 Features
Apr 1, 2026April 2026 monthly summary for intel/intel-ipsec-mb: Delivered significant Kasumi cryptography enhancements and validation improvements. Key achievements include performance optimizations across AVX2/AVX512/SSE, API simplification by removing bit-length support, and expanded test coverage with F8/F9 vectors and corrected IV handling. No major bugs fixed this month; work focused on performance, reliability, and maintainability to boost throughput and simplify integration.
7 Commits • 2 Features
Apr 1, 2026April 2026 monthly summary for intel/intel-ipsec-mb: Delivered significant Kasumi cryptography enhancements and validation improvements. Key achievements include performance optimizations across AVX2/AVX512/SSE, API simplification by removing bit-length support, and expanded test coverage with F8/F9 vectors and corrected IV handling. No major bugs fixed this month; work focused on performance, reliability, and maintainability to boost throughput and simplify integration.
April 2026
March 2026
9 Commits • 2 Features
Mar 1, 2026March 2026 highlights for intel-ipsec-mb: Delivered a focused Kasumi modernization and performance push. The Kasumi codebase was refactored to separate AVX2/AVX512 paths and streamline API usage, with consolidated buffer API improvements and redesigned file organization. We implemented AVX2/AVX512 performance optimizations, including an assembly-backed one-block function and optimized S-box/FI paths, significantly boosting cryptographic throughput across architectures. A Skylake AVX2 S-box bug causing illegal instructions was resolved by correcting input load/broadcast strategy. These outcomes reduce maintenance burden, improve VPN/IPsec throughput, and strengthen hardware coverage. Technologies demonstrated include C/C++ refactoring, AVX2/AVX512 optimizations, inline assembly, and cross-architecture design.
March 2026
9 Commits • 2 Features
Mar 1, 2026March 2026 highlights for intel-ipsec-mb: Delivered a focused Kasumi modernization and performance push. The Kasumi codebase was refactored to separate AVX2/AVX512 paths and streamline API usage, with consolidated buffer API improvements and redesigned file organization. We implemented AVX2/AVX512 performance optimizations, including an assembly-backed one-block function and optimized S-box/FI paths, significantly boosting cryptographic throughput across architectures. A Skylake AVX2 S-box bug causing illegal instructions was resolved by correcting input load/broadcast strategy. These outcomes reduce maintenance burden, improve VPN/IPsec throughput, and strengthen hardware coverage. Technologies demonstrated include C/C++ refactoring, AVX2/AVX512 optimizations, inline assembly, and cross-architecture design.
February 2026
1 Commits • 1 Features
Feb 1, 2026Month: 2026-02 – intel/intel-ipsec-mb: Kasumi API Refactor and Cleanup. Removed unused functions and simplified interfaces to improve readability and maintainability. Commit: 58475d78fa708b4c07b7ca007fcb33299f7ab0a8 (sse_t1: Cleanup Kasumi API). Key achievements: - Kasumi API refactor to reduce technical debt and streamline API surface. - Cleaner, more maintainable codebase; easier future enhancements. - Clear commit traceability for the refactor (58475d78...). Major bugs fixed: None this month. Impact: Faster onboarding for new contributors; more reliable crypto workflow in IPsec MB module; lower maintenance costs. Technologies/skills: API refactor, code cleanup, readability-focused design, version control discipline.
1 Commits • 1 Features
Feb 1, 2026Month: 2026-02 – intel/intel-ipsec-mb: Kasumi API Refactor and Cleanup. Removed unused functions and simplified interfaces to improve readability and maintainability. Commit: 58475d78fa708b4c07b7ca007fcb33299f7ab0a8 (sse_t1: Cleanup Kasumi API). Key achievements: - Kasumi API refactor to reduce technical debt and streamline API surface. - Cleaner, more maintainable codebase; easier future enhancements. - Clear commit traceability for the refactor (58475d78...). Major bugs fixed: None this month. Impact: Faster onboarding for new contributors; more reliable crypto workflow in IPsec MB module; lower maintenance costs. Technologies/skills: API refactor, code cleanup, readability-focused design, version control discipline.
February 2026
January 2026
13 Commits • 2 Features
Jan 1, 2026Monthly summary for 2026-01 focusing on intel/intel-ipsec-mb. This month delivered significant AES-GCM performance improvements and internal AVX/AVX2 function suites, along with macro refinements that enhance parallelism and key handling. No critical bug fixes were reported this month; core work focused on performance, reliability, and API stability to enable higher throughput and secure operation in production deployments. The changes lay groundwork for variable IV support and more scalable use of non-VAES paths.
January 2026
13 Commits • 2 Features
Jan 1, 2026Monthly summary for 2026-01 focusing on intel/intel-ipsec-mb. This month delivered significant AES-GCM performance improvements and internal AVX/AVX2 function suites, along with macro refinements that enhance parallelism and key handling. No critical bug fixes were reported this month; core work focused on performance, reliability, and API stability to enable higher throughput and secure operation in production deployments. The changes lay groundwork for variable IV support and more scalable use of non-VAES paths.
December 2025
19 Commits • 1 Features
Dec 1, 2025December 2025: Intel IPsec-MB SIMD-accelerated AES-GCM project matured across SSE, AVX2, and AVX-512 backends. Delivered a cohesive core AES-GCM API with backend-specific optimizations, improved throughput, and solidified cross-backend API parity. The work emphasizes business value through higher crypto throughput, lower CPU utilization, and readiness for larger-scale VPN workloads.
19 Commits • 1 Features
Dec 1, 2025December 2025: Intel IPsec-MB SIMD-accelerated AES-GCM project matured across SSE, AVX2, and AVX-512 backends. Delivered a cohesive core AES-GCM API with backend-specific optimizations, improved throughput, and solidified cross-backend API parity. The work emphasizes business value through higher crypto throughput, lower CPU utilization, and readiness for larger-scale VPN workloads.
December 2025
November 2025
5 Commits • 2 Features
Nov 1, 2025Month: 2025-11 — Consolidated performance improvements and modularity enhancements to the Intel IPsec MB cryptographic library. Delivered AVX512-based AES-GCM optimizations, expanded the AES-GCM API surface, and strengthened internal modularity and error handling to improve maintainability and reliability of the cryptographic path for IPsec workloads.
November 2025
5 Commits • 2 Features
Nov 1, 2025Month: 2025-11 — Consolidated performance improvements and modularity enhancements to the Intel IPsec MB cryptographic library. Delivered AVX512-based AES-GCM optimizations, expanded the AES-GCM API surface, and strengthened internal modularity and error handling to improve maintainability and reliability of the cryptographic path for IPsec workloads.
October 2025
5 Commits • 1 Features
Oct 1, 2025Month 2025-10: Delivered a performance-oriented optimization path for HMAC-SHA calculations in intel-ipsec-mb, implemented MOVBE-based handling across SSE/AVX2/AVX512 to replace bswap in HMAC-SHA1, HMAC-SHA256, and HMAC-SHA512. The feature shipped with platform-specific improvements but was reverted on SSE implementations due to compatibility concerns, restoring the legacy bswap path to ensure broad cross-platform stability. Overall, the month delivered meaningful potential throughput gains on optimized hardware while maintaining reliability and compatibility across platforms.
5 Commits • 1 Features
Oct 1, 2025Month 2025-10: Delivered a performance-oriented optimization path for HMAC-SHA calculations in intel-ipsec-mb, implemented MOVBE-based handling across SSE/AVX2/AVX512 to replace bswap in HMAC-SHA1, HMAC-SHA256, and HMAC-SHA512. The feature shipped with platform-specific improvements but was reverted on SSE implementations due to compatibility concerns, restoring the legacy bswap path to ensure broad cross-platform stability. Overall, the month delivered meaningful potential throughput gains on optimized hardware while maintaining reliability and compatibility across platforms.
October 2025
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025: Delivered a performance-focused optimization for the SNOW3G SSE T1 path in intel-ipsec-mb. Refactored SNOW3G to replace the btr instruction with a lane-mask based bitwise operation, updated register usage and stack frame sizes, and removed unused constants. This optimization reduces instruction footprint and increases cryptographic throughput in the critical SSE path. No major bugs fixed this month; focus was on performance engineering, code cleanliness, and preparing the codebase for future improvements.
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025: Delivered a performance-focused optimization for the SNOW3G SSE T1 path in intel-ipsec-mb. Refactored SNOW3G to replace the btr instruction with a lane-mask based bitwise operation, updated register usage and stack frame sizes, and removed unused constants. This optimization reduces instruction footprint and increases cryptographic throughput in the critical SSE path. No major bugs fixed this month; focus was on performance engineering, code cleanliness, and preparing the codebase for future improvements.
August 2025
2 Commits • 1 Features
Aug 1, 2025August 2025 performance summary for intel/intel-ipsec-mb focused on cryptographic throughput optimization in the SNOW3G path. Delivered SSE/SIMD-based enhancements that significantly increase parallelism and reduce per-block processing time, strengthening IPsec performance under load for enterprise VPN workloads.
2 Commits • 1 Features
Aug 1, 2025August 2025 performance summary for intel/intel-ipsec-mb focused on cryptographic throughput optimization in the SNOW3G path. Delivered SSE/SIMD-based enhancements that significantly increase parallelism and reduce per-block processing time, strengthening IPsec performance under load for enterprise VPN workloads.
August 2025
July 2025
23 Commits • 2 Features
Jul 1, 2025July 2025 (2025-07) performance and security focus for the intel-ipsec-mb project. Delivered targeted correctness fixes across SIMD crypto paths (SSE/AVX2/AVX-512), hardening of security-sensitive code paths, and selective performance/code-size optimizations. The work improves reliability, security posture, and runtime efficiency for hardware-accelerated crypto.
July 2025
23 Commits • 2 Features
Jul 1, 2025July 2025 (2025-07) performance and security focus for the intel-ipsec-mb project. Delivered targeted correctness fixes across SIMD crypto paths (SSE/AVX2/AVX-512), hardening of security-sensitive code paths, and selective performance/code-size optimizations. The work improves reliability, security posture, and runtime efficiency for hardware-accelerated crypto.
May 2025
4 Commits • 2 Features
May 1, 2025May 2025 focused on architectural alignment standardization for intel-ipsec-mb, delivering groundwork for maintainability and future performance optimizations. Key changes standardized code alignment using new macros (align_loop, align_label, align_function) across AVX512 components (avx512_t2 and include files) and the AVX2 SHA512 NI path, without altering cryptographic functionality. The work emphasizes consistency, readability, and reduced future defect risk, setting the stage for targeted performance tuning in subsequent sprints.
4 Commits • 2 Features
May 1, 2025May 2025 focused on architectural alignment standardization for intel-ipsec-mb, delivering groundwork for maintainability and future performance optimizations. Key changes standardized code alignment using new macros (align_loop, align_label, align_function) across AVX512 components (avx512_t2 and include files) and the AVX2 SHA512 NI path, without altering cryptographic functionality. The work emphasizes consistency, readability, and reduced future defect risk, setting the stage for targeted performance tuning in subsequent sprints.
May 2025
April 2025
13 Commits • 2 Features
Apr 1, 2025April 2025: Delivered substantial hashing enhancements, SIMD codebase improvements, and comprehensive test coverage for intel-ipsec-mb, driving broader SHA support, reliability, and maintainability. Key work includes batch processing for SHA-512/384 with tests and CLI/app integration for SHA-224/256/384/512; fixed SHA-1 SSE/SHANI output with additional tests; standardized SIMD alignment across SSE/AVX2/AVX512 to improve readability and future performance; expanded test coverage and examples enabling end-to-end SHA authentication workflows. Impact: expanded cryptographic capabilities, improved correctness and stability, and a cleaner, more maintainable SIMD codebase, enabling faster iteration and stronger business value.
April 2025
13 Commits • 2 Features
Apr 1, 2025April 2025: Delivered substantial hashing enhancements, SIMD codebase improvements, and comprehensive test coverage for intel-ipsec-mb, driving broader SHA support, reliability, and maintainability. Key work includes batch processing for SHA-512/384 with tests and CLI/app integration for SHA-224/256/384/512; fixed SHA-1 SSE/SHANI output with additional tests; standardized SIMD alignment across SSE/AVX2/AVX512 to improve readability and future performance; expanded test coverage and examples enabling end-to-end SHA authentication workflows. Impact: expanded cryptographic capabilities, improved correctness and stability, and a cleaner, more maintainable SIMD codebase, enabling faster iteration and stronger business value.
March 2025
14 Commits • 2 Features
Mar 1, 2025March 2025 (2025-03) focused on performance-oriented crypto improvements for intel/intel-ipsec-mb, delivering expanded HMAC-SHA flexibility and single-buffer SHA optimizations. The work enhanced interoperability, security options, and throughput across SIMD backends (SSE, AVX2, AVX512) while expanding validation via tests and sample apps. The changes lay groundwork for broader hardware support and robust, configurable MAC tag handling in production deployments.
14 Commits • 2 Features
Mar 1, 2025March 2025 (2025-03) focused on performance-oriented crypto improvements for intel/intel-ipsec-mb, delivering expanded HMAC-SHA flexibility and single-buffer SHA optimizations. The work enhanced interoperability, security options, and throughput across SIMD backends (SSE, AVX2, AVX512) while expanding validation via tests and sample apps. The changes lay groundwork for broader hardware support and robust, configurable MAC tag handling in production deployments.
March 2025
February 2025
3 Commits • 1 Features
Feb 1, 2025February 2025 Monthly Summary for intel-ipsec-mb development. Focused on extending HMAC-SHA1 authentication to support variable tag lengths across SIMD paths, enhancing interoperability and efficiency for diverse client requirements while maintaining rigorous validation and test coverage.
February 2025
3 Commits • 1 Features
Feb 1, 2025February 2025 Monthly Summary for intel-ipsec-mb development. Focused on extending HMAC-SHA1 authentication to support variable tag lengths across SIMD paths, enhancing interoperability and efficiency for diverse client requirements while maintaining rigorous validation and test coverage.
January 2025
2 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for intel/intel-ipsec-mb focusing on performance optimizations in HMAC-AVX-512 across SHA1 and SHA256 paths, with refactoring and alignment work that improved throughput and resource efficiency. Work completed in the Intel IPsec Multi-Block (MB) engine, reinforcing competitive crypto throughput on AVX-512 capable platforms.
2 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for intel/intel-ipsec-mb focusing on performance optimizations in HMAC-AVX-512 across SHA1 and SHA256 paths, with refactoring and alignment work that improved throughput and resource efficiency. Work completed in the Intel IPsec Multi-Block (MB) engine, reinforcing competitive crypto throughput on AVX-512 capable platforms.
January 2025
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for intel-ipsec-mb: Delivered SHA performance optimization across AVX2/AVX-512 via constant loading broadcasts, refactoring constants loading for SHA1/SHA256/SHA512, resulting in a cleaner data footprint and paving the way for higher throughputs on modern CPUs. Major bugs fixed: none reported this month. Overall impact includes potential performance gains, simpler maintenance, and groundwork for further vectorized crypto optimizations. Technologies/skills demonstrated include AVX2/AVX-512 vectorization, broadcast instruction usage, performance tuning, and cross-architecture crypto optimization.
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for intel-ipsec-mb: Delivered SHA performance optimization across AVX2/AVX-512 via constant loading broadcasts, refactoring constants loading for SHA1/SHA256/SHA512, resulting in a cleaner data footprint and paving the way for higher throughputs on modern CPUs. Major bugs fixed: none reported this month. Overall impact includes potential performance gains, simpler maintenance, and groundwork for further vectorized crypto optimizations. Technologies/skills demonstrated include AVX2/AVX-512 vectorization, broadcast instruction usage, performance tuning, and cross-architecture crypto optimization.
Activity
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Quality Metrics
Correctness95.2%
Maintainability85.0%
Architecture89.4%
Performance90.8%
AI Usage20.4%
Skills & Technologies
Programming Languages
AssemblyCC++CMakeJSON
Technical Skills
API developmentAVX-512AVX-512 IntrinsicsAVX2AVX2 IntrinsicsAVX2 assemblyAVX2 optimizationAVX512AVX512 IntrinsicsAssemblyAssembly LanguageAssembly Language ProgrammingAssembly OptimizationAssembly languageAssembly language optimization
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