intel/intel-ipsec-mb
Oct 2024 – Sep 2025
10 Months active
Languages Used
AssemblyCJavaScriptMakefileMarkdownNroffPythonGit
Technical Skills
AVX2 VAESAssembly ProgrammingC ProgrammingCode MaintenanceCopyright ManagementCryptography
Marcel Cornu
PROFILE
Marcel Cornu
Marcel Cornu contributed to the intel/intel-ipsec-mb repository by engineering high-performance cryptographic features and robust testing infrastructure over a ten-month period. He implemented AVX2 and AVX-512 optimized assembly routines for AES and SHA3/SHAKE algorithms, accelerating secure data processing across platforms. Marcel enhanced build systems using CMake and Makefile, integrated comprehensive fuzz and performance testing, and improved code maintainability through formatting and documentation updates. His work addressed cross-platform compatibility, security hardening, and reliability, including memory sanitization and alignment fixes. By combining C and assembly language expertise with low-level optimization, Marcel delivered maintainable, high-throughput cryptographic solutions aligned with evolving business and security requirements.
Overall Statistics
Feature vs Bugs
79%Features
Repository Contributions
68Total
Bugs
5
Commits
68
Features
19
Lines of code
54,250
Activity Months10
Your Network
1967 people
Work History
September 2025
16 Commits • 3 Features
Sep 1, 2025September 2025 — Intel IPsec MB: Key deliverables focused on expanding fuzz testing coverage, hardening test robustness, and elevating code quality and release readiness across assembly modules. Delivered targeted features and fixes with clear business value and maintainable architecture improvements.
16 Commits • 3 Features
Sep 1, 2025September 2025 — Intel IPsec MB: Key deliverables focused on expanding fuzz testing coverage, hardening test robustness, and elevating code quality and release readiness across assembly modules. Delivered targeted features and fixes with clear business value and maintainable architecture improvements.
September 2025
August 2025
1 Commits
Aug 1, 2025Security hardening for the Intel IPsec MB module in August 2025 focused on eliminating residual sensitive data after AES-CCM operations across all supported architectures (SSE, AVX2 paths, AVX-512 path). This work removes memory remnants of expanded keys and initialization blocks, reducing exposure risk and strengthening data handling compliance.
August 2025
1 Commits
Aug 1, 2025Security hardening for the Intel IPsec MB module in August 2025 focused on eliminating residual sensitive data after AES-CCM operations across all supported architectures (SSE, AVX2 paths, AVX-512 path). This work removes memory remnants of expanded keys and initialization blocks, reducing exposure risk and strengthening data handling compliance.
July 2025
8 Commits • 3 Features
Jul 1, 2025Month: 2025-07 — Intel IPsec-MB work delivered end-to-end SHA3/SHAKE support in the ACVP app, expanded test coverage, and performance-tool enhancements, with reliability fixes that reduce risk and improve throughput. Highlights include new hashing handlers and test vectors, removal of SHA3 length constraints, and robustness improvements for long data handling, 64-byte sweep testing, and performance skips.
8 Commits • 3 Features
Jul 1, 2025Month: 2025-07 — Intel IPsec-MB work delivered end-to-end SHA3/SHAKE support in the ACVP app, expanded test coverage, and performance-tool enhancements, with reliability fixes that reduce risk and improve throughput. Highlights include new hashing handlers and test vectors, removal of SHA3 length constraints, and robustness improvements for long data handling, 64-byte sweep testing, and performance skips.
July 2025
June 2025
10 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for intel/intel-ipsec-mb focusing on SHA3/SHAKE integration, testing, and quality improvements that deliver stronger crypto processing, reliability, and faster validation of changes across multiple test suites.
June 2025
10 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for intel/intel-ipsec-mb focusing on SHA3/SHAKE integration, testing, and quality improvements that deliver stronger crypto processing, reliability, and faster validation of changes across multiple test suites.
May 2025
8 Commits • 3 Features
May 1, 2025May 2025 focused on performance, compatibility, and crypto feature expansion for intel-ipsec-mb. Key deliverables include AVX2/AVX512 AES-CCM acceleration with VAES-based counter-mode and authentication, SHA3/SHAKE hashing support, and updated build tooling to maintain compatibility with newer CMake versions. A minor bug fix was applied in the AES-CCM OOO manager, and documentation and legacy build support were updated accordingly. These changes collectively improve IPsec throughput, expand cryptographic capabilities, and reduce build maintenance friction.
8 Commits • 3 Features
May 1, 2025May 2025 focused on performance, compatibility, and crypto feature expansion for intel-ipsec-mb. Key deliverables include AVX2/AVX512 AES-CCM acceleration with VAES-based counter-mode and authentication, SHA3/SHAKE hashing support, and updated build tooling to maintain compatibility with newer CMake versions. A minor bug fix was applied in the AES-CCM OOO manager, and documentation and legacy build support were updated accordingly. These changes collectively improve IPsec throughput, expand cryptographic capabilities, and reduce build maintenance friction.
May 2025
April 2025
1 Commits
Apr 1, 2025April 2025: Focused on stabilizing and hardening the GCM path in intel-ipsec-mb. The primary effort was a cross-OS alignment fix for GCM key data structures achieved by adjusting preprocessor directives to ensure correct alignment on Windows, Linux, and macOS. This work reduces platform-specific cryptographic failures and improves overall reliability of GCM operations in multi-OS deployments. Impact: Increased robustness of the IPsec MB library in diverse environments, with a cleaner, maintainable code path for cross-platform cryptography. Technologies/Skills demonstrated: C, preprocessor directives, cross-platform build validation, cryptographic data structure alignment, debugging, and code review discipline. Commit reference: bbafa7c6d2873bcb4fdbc48771a181dc42d50452
April 2025
1 Commits
Apr 1, 2025April 2025: Focused on stabilizing and hardening the GCM path in intel-ipsec-mb. The primary effort was a cross-OS alignment fix for GCM key data structures achieved by adjusting preprocessor directives to ensure correct alignment on Windows, Linux, and macOS. This work reduces platform-specific cryptographic failures and improves overall reliability of GCM operations in multi-OS deployments. Impact: Increased robustness of the IPsec MB library in diverse environments, with a cleaner, maintainable code path for cross-platform cryptography. Technologies/Skills demonstrated: C, preprocessor directives, cross-platform build validation, cryptographic data structure alignment, debugging, and code review discipline. Commit reference: bbafa7c6d2873bcb4fdbc48771a181dc42d50452
January 2025
2 Commits • 1 Features
Jan 1, 2025January 2025 — Delivered AES-CMAC AVX2 Type 2 support for intel/intel-ipsec-mb. Implemented the AVX2 Type 2 path and optimized the submission/flush pipeline to reduce store-to-load penalties, resulting in improved throughput for AVX2-enabled workloads. Updated internal docs and release notes to reflect the new capability and associated performance gains. This work strengthens product capabilities for high-throughput cryptographic workloads and improves developer experience with clearer guidance and lifecycle documentation.
2 Commits • 1 Features
Jan 1, 2025January 2025 — Delivered AES-CMAC AVX2 Type 2 support for intel/intel-ipsec-mb. Implemented the AVX2 Type 2 path and optimized the submission/flush pipeline to reduce store-to-load penalties, resulting in improved throughput for AVX2-enabled workloads. Updated internal docs and release notes to reflect the new capability and associated performance gains. This work strengthens product capabilities for high-throughput cryptographic workloads and improves developer experience with clearer guidance and lifecycle documentation.
January 2025
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for intel/intel-ipsec-mb focusing on performance-oriented enhancements and benchmark stability. Key features delivered include VAES AVX2 optimization for AES-CMAC, implemented via new assembly files and Makefile updates to unlock higher throughput on AVX2-capable CPUs. Major bug/quality work includes improved ipsec_perf benchmarking stability by updating buffer alignment from 64-byte to 64KB and reducing default test rounds from 16 to 8, resulting in more reproducible measurements. The initiatives collectively improve performance potential on AVX2 hardware, reduce test noise, and streamline build/test configurations. This aligns with business goals of higher secure throughput and predictable performance across platforms.
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for intel/intel-ipsec-mb focusing on performance-oriented enhancements and benchmark stability. Key features delivered include VAES AVX2 optimization for AES-CMAC, implemented via new assembly files and Makefile updates to unlock higher throughput on AVX2-capable CPUs. Major bug/quality work includes improved ipsec_perf benchmarking stability by updating buffer alignment from 64-byte to 64KB and reducing default test rounds from 16 to 8, resulting in more reproducible measurements. The initiatives collectively improve performance potential on AVX2 hardware, reduce test noise, and streamline build/test configurations. This aligns with business goals of higher secure throughput and predictable performance across platforms.
November 2024
12 Commits • 3 Features
Nov 1, 2024November 2024 — Key maintainability improvements, a new performance benchmark tool, and AVX2-based crypto enhancements that raise throughput for high-volume workloads. Release processes and documentation were streamlined to speed deliveries and improve onboarding for contributors.
12 Commits • 3 Features
Nov 1, 2024November 2024 — Key maintainability improvements, a new performance benchmark tool, and AVX2-based crypto enhancements that raise throughput for high-volume workloads. Release processes and documentation were streamlined to speed deliveries and improve onboarding for contributors.
November 2024
October 2024
8 Commits • 3 Features
Oct 1, 2024For 2024-10, the team delivered reliability, performance, and documentation improvements for intel/intel-ipsec-mb, aligning cryptographic validation, performance measurement, and maintainability with business value goals.
October 2024
8 Commits • 3 Features
Oct 1, 2024For 2024-10, the team delivered reliability, performance, and documentation improvements for intel/intel-ipsec-mb, aligning cryptographic validation, performance measurement, and maintainability with business value goals.
Activity
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Quality Metrics
Correctness94.6%
Maintainability92.6%
Architecture89.2%
Performance89.8%
AI Usage20.0%
Skills & Technologies
Programming Languages
AssemblyCCMakeGitJavaScriptMakefileMarkdownNroffPythoncmake
Technical Skills
API TestingAVX-512AVX2AVX2 IntrinsicsAVX2 VAESAVX2 instructionsAssembly LanguageAssembly Language ProgrammingAssembly ProgrammingAssembly languageAssembly language optimizationAssembly language programmingBuild System IntegrationBuild SystemsBuild Tools
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