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Andreas Vikerup

PROFILE

Andreas Vikerup

Andreas Vikerup developed a new cryptographic module for the hashcat/hashcat repository, enabling password cracking for hashes using double SHA-256 with salt. He implemented both OpenCL kernels and a C module to handle matching, searching, and hash decoding or encoding, focusing on performance through SIMD optimization. This work expanded hashcat’s support for salted, double-hash schemes, enhancing its utility for security assessments and incident response. Andreas applied his expertise in C programming, cryptography, and OpenCL development to deliver a feature that addressed the need for efficient evaluation of complex password hashing methods, demonstrating depth in both algorithm design and optimization.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

1Total
Bugs
0
Commits
1
Features
1
Lines of code
1,053
Activity Months1

Work History

April 2025

1 Commits • 1 Features

Apr 1, 2025

April 2025 monthly summary for hashcat/hashcat: Delivered a new cryptographic module to crack passwords hashed with double SHA-256 and salt, expanding assessment capabilities for salted hash schemes. Implemented OpenCL kernels for matching and searching and added a C module for hash decoding/encoding; leveraged SIMD optimizations for performance. This work is tracked under commit 3268b58e2417b1e240743f47bc355a91b8e2b562 with message 'add module 20713 - sha256(sha256(pass+salt))'.

Activity

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Quality Metrics

Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

COpenCL

Technical Skills

C ProgrammingCryptographyOpenCL DevelopmentPassword CrackingSIMD Optimization

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

hashcat/hashcat

Apr 2025 Apr 2025
1 Month active

Languages Used

COpenCL

Technical Skills

C ProgrammingCryptographyOpenCL DevelopmentPassword CrackingSIMD Optimization

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