hashcat/hashcat
Jul 2025 – Jul 2025
1 Month active
Languages Used
HCTuneOpenCL
Technical Skills
Configuration ManagementKernel developmentLow-level programmingMemory management
Tobias Wiersema
PROFILE
Tobias Wiersema
Tobias Wiersema contributed to the hashcat/hashcat repository by delivering a critical kernel stability fix and enhancing bcrypt-sha256 support. He addressed a memory corruption issue in the OpenCL kernel by removing the problematic REAL_SHM code block and simplifying initialization through direct use of the global bin2base64 array. Tobias also updated configuration tuning data, adding support for bcrypt-sha256 v2 to improve password cracking workflows. His work demonstrated strong skills in kernel development, low-level programming, and memory management using HCTune and OpenCL. The changes improved maintainability and reduced the risk of memory-related regressions, reflecting a thoughtful engineering approach.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
2Total
Bugs
1
Commits
2
Features
1
Lines of code
18
Activity Months1
Your Network
49 peopleSame Organization
@uni-paderborn.de2
Work History
July 2025
2 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for the hashcat/hashcat repository. Delivered critical kernel stability fixes and updated tuning data to enhance bcrypt-sha256 support. The work focused on OpenCL kernel reliability, memory management, and tuning-driven performance improvements, contributing to more robust and scalable cracking workflows.
2 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for the hashcat/hashcat repository. Delivered critical kernel stability fixes and updated tuning data to enhance bcrypt-sha256 support. The work focused on OpenCL kernel reliability, memory management, and tuning-driven performance improvements, contributing to more robust and scalable cracking workflows.
July 2025
Activity
Loading activity data...
Quality Metrics
Correctness90.0%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
HCTuneOpenCL
Technical Skills
Configuration ManagementKernel developmentLow-level programmingMemory management
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline