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Tobias Frauenschläger

PROFILE

Tobias Frauenschläger

Worked on the wolfSSL/wolfssl repository to enhance post-quantum cryptography support and improve TLS handshake reliability. Over three months, contributed features such as default key share group ranking for PQC TLS handshakes and added LMS and XMSS signature schemes, updating CMake build configurations and refining key import logic. Focused on robust memory management and error handling in C, addressing bugs in Dilithium key handling and TLS 1.3 PSK flows. Emphasized code hygiene and resource cleanup to support secure, maintainable embedded systems. These efforts increased compatibility, security, and reliability for post-quantum deployments in network security environments.

Overall Statistics

Feature vs Bugs

33%Features

Repository Contributions

7Total
Bugs
4
Commits
7
Features
2
Lines of code
213
Activity Months3

Your Network

75 people

Same Organization

@oth-regensburg.de
2

Shared Repositories

73

Work History

February 2025

2 Commits

Feb 1, 2025

February 2025: TLS Handshake Stability improvements in wolfSSL with PQC integration. Focused on memory management, resource cleanup, and code hygiene to support reliable key exchange and future PQC features. No new product features released this month; primary impact is increased reliability, maintainability, and security posture.

January 2025

2 Commits

Jan 1, 2025

January 2025 monthly summary for wolfSSL/wolfssl: focused on stabilizing cryptographic import paths and TLS handshake flows under varied configurations. Delivered robust bug fixes to key import and TLS 1.3 PSK handling, with traceable commits for auditability. No new features released this month; primary value came from increased robustness, compatibility, and reduced risk in critical crypto paths.

November 2024

3 Commits • 2 Features

Nov 1, 2024

November 2024 monthly summary for wolfSSL/wolfssl: Key PQC TLS handshake improvements and expanded post-quantum signature support, with build-system updates and robustness enhancements. Implemented default key share group ranking for PQC TLS handshakes, improving interoperability when no user ranking is provided; added LMS and XMSS support with build/config updates and a minor internal key-state fix during key import. Fixed Dilithium handling and TLS certificate verification, introducing context-based signing/verification and improved error handling for signature verification failures. These changes collectively improve security, compatibility, and maintainability for post-quantum deployment while enabling safer adoption in production environments.

Activity

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Quality Metrics

Correctness84.4%
Maintainability82.8%
Architecture82.8%
Performance71.4%
AI Usage20.0%

Skills & Technologies

Programming Languages

CCMake

Technical Skills

Build SystemsC ProgrammingC programmingCryptographyEmbedded SystemsEmbedded systemsMemory ManagementNetwork SecuritySecurity ProtocolsTLSTLS/SSL

Repositories Contributed To

1 repo

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

wolfSSL/wolfssl

Nov 2024 Feb 2025
3 Months active

Languages Used

CCMake

Technical Skills

Build SystemsCryptographyEmbedded SystemsNetwork SecurityTLSC programming