openssl/openssl
Nov 2024 – Aug 2025
2 Months active
Languages Used
CAssemblyPerl
Technical Skills
Bug FixingMemory ManagementAssemblyBuild System ConfigurationGitignore ManagementLow-level programming
Holger Dengler
PROFILE
Holger Dengler
Worked on the openssl/openssl repository over a two-month period, focusing on stabilizing cryptographic routines and improving system compatibility. Addressed memory management issues in C and Assembly by implementing centralized resource cleanup and correcting memory leaks in core crypto paths, which enhanced runtime reliability and reduced production risk. Improved architecture compatibility for s390x by initializing KMA parameter block memory in Perl-based assembler scripts, preventing false positives from memory checkers. Maintained repository hygiene by updating .gitignore to exclude generated assembler files, streamlining build system configuration. The work demonstrated depth in low-level programming, bug fixing, and system programming across multiple languages and platforms.
Overall Statistics
Feature vs Bugs
0%Features
Repository Contributions
4Total
Bugs
3
Commits
4
Features
0
Lines of code
18
Activity Months2
Your Network
471 peopleSame Organization
@linux.ibm.com83
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Aditya BodkheMember
Aditya GuptaMember
Abhishek DubeyMember
Alexander GordeevMember
Andrew DonnellanMember
Aleksei NikiforovMember
Farhan AliMember
Amit MachhiwalMember
Shared Repositories
388
Work History
August 2025
2 Commits
Aug 1, 2025OpenSSL module improvements for Aug 2025 focusing on architecture compatibility and repo hygiene. Key deliverables include KMA parameter block memory initialization for s390x and .gitignore updates to ignore generated assembler files.
2 Commits
Aug 1, 2025OpenSSL module improvements for Aug 2025 focusing on architecture compatibility and repo hygiene. Key deliverables include KMA parameter block memory initialization for s390x and .gitignore updates to ignore generated assembler files.
August 2025
November 2024
2 Commits
Nov 1, 2024Month: 2024-11 — Focused on stabilizing cryptographic code in openssl/openssl by correcting memory management and improving error-path cleanup. The work reduces memory leak risk in core crypto routines and improves runtime reliability under error conditions.
November 2024
2 Commits
Nov 1, 2024Month: 2024-11 — Focused on stabilizing cryptographic code in openssl/openssl by correcting memory management and improving error-path cleanup. The work reduces memory leak risk in core crypto routines and improves runtime reliability under error conditions.
Activity
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Quality Metrics
Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
AssemblyCPerl
Technical Skills
AssemblyBug FixingBuild System ConfigurationGitignore ManagementLow-level programmingMemory ManagementSystem programming
Repositories Contributed To
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