openssl/openssl
Feb 2024 – Feb 2026
14 Months active
Languages Used
YAMLCShellTextPerlAssemblyMarkdown
Technical Skills
Continuous IntegrationDevOpsFuzz TestingC programmingCryptographyOpenSSL
Bernd Edlinger
PROFILE
Bernd Edlinger
Contributed to the openssl/openssl repository over 14 months, focusing on stability, security, and cross-platform reliability in cryptographic systems. Delivered features and bug fixes in C and Assembly, addressing concurrency, memory management, and low-level programming challenges. Enhanced test infrastructure, improved CI/CD workflows, and resolved issues in areas such as RCU, DH key generation, and UTF-8 conversion. Strengthened cryptographic correctness and security by fixing edge-case vulnerabilities and improving platform compatibility, including ARM and RISC-V architectures. Applied skills in debugging, build systems, and cryptography to ensure robust releases, thorough test coverage, and maintainable code, supporting safer and more predictable deployments.
Overall Statistics
Feature vs Bugs
42%Features
Repository Contributions
56Total
Bugs
18
Commits
56
Features
13
Lines of code
818
Activity Months14
Your Network
365 peopleShared Repositories
365
Work History
February 2026
1 Commits
Feb 1, 2026February 2026 monthly summary emphasizing robust security fixes and improved UTF-8 handling in critical OpenSSL conversion path.
1 Commits
Feb 1, 2026February 2026 monthly summary emphasizing robust security fixes and improved UTF-8 handling in critical OpenSSL conversion path.
February 2026
January 2026
2 Commits
Jan 1, 2026January 2026 — OpenSSL (openssl/openssl) delivered stability and reliability improvements through targeted SCTP and ASN.1 hardening. SCTP robustness and IPv6 connection handling were improved to reduce connectivity failures and memory leaks in s_server/s_client workflows. ASN.1 library reliability was enhanced with NULL-pointer safeguards and expanded tests for IMPLICIT/EXPLICIT tagging. Collectively, these changes reduce production risk, improve DTLS-SCTP interoperability, and strengthen code quality through better test coverage and peer reviews.
January 2026
2 Commits
Jan 1, 2026January 2026 — OpenSSL (openssl/openssl) delivered stability and reliability improvements through targeted SCTP and ASN.1 hardening. SCTP robustness and IPv6 connection handling were improved to reduce connectivity failures and memory leaks in s_server/s_client workflows. ASN.1 library reliability was enhanced with NULL-pointer safeguards and expanded tests for IMPLICIT/EXPLICIT tagging. Collectively, these changes reduce production risk, improve DTLS-SCTP interoperability, and strengthen code quality through better test coverage and peer reviews.
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 highlights for openssl/openssl: security transparency improvement by documenting CVE-2021-4160 and its fix in the changelog, aligning with upstream remediation in OpenSSL 3.0.1. The commit 134f17d526a5d0a9fbd66adf85e53df8a764a2ff captures the documentation update; the change was merged from upstream PR 29051 after reviews by Paul Yang, Dmitry Belyavskiy, Tom Cosgrove, and Tomas Mraz. Impact: clearer remediation history for users, enhanced trust, and reduced risk exposure. Business value includes improved compliance posture and reduced support inquiries related to vulnerability disclosures. Skills demonstrated: security vulnerability documentation, changelog discipline, PR hygiene, cross-team collaboration, and disclosure standards.
1 Commits • 1 Features
Nov 1, 2025November 2025 highlights for openssl/openssl: security transparency improvement by documenting CVE-2021-4160 and its fix in the changelog, aligning with upstream remediation in OpenSSL 3.0.1. The commit 134f17d526a5d0a9fbd66adf85e53df8a764a2ff captures the documentation update; the change was merged from upstream PR 29051 after reviews by Paul Yang, Dmitry Belyavskiy, Tom Cosgrove, and Tomas Mraz. Impact: clearer remediation history for users, enhanced trust, and reduced risk exposure. Business value includes improved compliance posture and reduced support inquiries related to vulnerability disclosures. Skills demonstrated: security vulnerability documentation, changelog discipline, PR hygiene, cross-team collaboration, and disclosure standards.
November 2025
October 2025
2 Commits
Oct 1, 2025October 2025 OpenSSL monthly summary: Concentrated on correctness on riscv64 and security hardening, with two critical bug fixes that strengthen cross-architecture reliability and CI robustness. The changes are traceable to specific commits, enabling auditability and rapid verification.
October 2025
2 Commits
Oct 1, 2025October 2025 OpenSSL monthly summary: Concentrated on correctness on riscv64 and security hardening, with two critical bug fixes that strengthen cross-architecture reliability and CI robustness. The changes are traceable to specific commits, enabling auditability and rapid verification.
September 2025
7 Commits • 3 Features
Sep 1, 2025September 2025 (OpenSSL/OpenSSL) focused on concurrency testing reliability, platform visibility, and cross-architecture stability. Delivered key features including RCU test stability improvements, PowerPC CPU information reporting, and RISC-V CI/testing enhancements. Fixed a critical RCU lock synchronization bug to eliminate potential race conditions. Result: improved test reliability, broader platform observability, and stronger CI coverage across architectures; enabling safer releases and faster issue diagnosis. Skills demonstrated include concurrency primitives, memory ordering, conditional compilation, and CI-driven quality assurance.
7 Commits • 3 Features
Sep 1, 2025September 2025 (OpenSSL/OpenSSL) focused on concurrency testing reliability, platform visibility, and cross-architecture stability. Delivered key features including RCU test stability improvements, PowerPC CPU information reporting, and RISC-V CI/testing enhancements. Fixed a critical RCU lock synchronization bug to eliminate potential race conditions. Result: improved test reliability, broader platform observability, and stronger CI coverage across architectures; enabling safer releases and faster issue diagnosis. Skills demonstrated include concurrency primitives, memory ordering, conditional compilation, and CI-driven quality assurance.
September 2025
August 2025
3 Commits • 1 Features
Aug 1, 2025August 2025 focused on strengthening OpenSSL reliability in two high-risk areas: PKCS7_TEXT mode handling and object creation concurrency. Delivered targeted test enhancements and robustness fixes that reduce regression risk and improve cross-thread stability of core crypto primitives. Key outcomes include expanded PKCS7_TEXT mode test coverage to exercise signing, encryption, and decryption scenarios, and a fixed OBJ_create return value contract with a new multi-threaded test to ensure robust NID handling under concurrent creation. These changes decrease the likelihood of regressions in critical crypto workflows and improve maintainability of the OpenSSL codebase.
August 2025
3 Commits • 1 Features
Aug 1, 2025August 2025 focused on strengthening OpenSSL reliability in two high-risk areas: PKCS7_TEXT mode handling and object creation concurrency. Delivered targeted test enhancements and robustness fixes that reduce regression risk and improve cross-thread stability of core crypto primitives. Key outcomes include expanded PKCS7_TEXT mode test coverage to exercise signing, encryption, and decryption scenarios, and a fixed OBJ_create return value contract with a new multi-threaded test to ensure robust NID handling under concurrent creation. These changes decrease the likelihood of regressions in critical crypto workflows and improve maintainability of the OpenSSL codebase.
June 2025
1 Commits
Jun 1, 2025June 2025 monthly summary for the openssl/openssl repository highlighting a focused security-oriented bug fix in the DH key generation path. The work strengthens cryptographic correctness and reduces risk from edge-case key sizes when the q parameter is omitted, ensuring interoperability and adherence to group constraints.
1 Commits
Jun 1, 2025June 2025 monthly summary for the openssl/openssl repository highlighting a focused security-oriented bug fix in the DH key generation path. The work strengthens cryptographic correctness and reduces risk from edge-case key sizes when the q parameter is omitted, ensuring interoperability and adherence to group constraints.
June 2025
April 2025
2 Commits
Apr 1, 2025Monthly summary for 2025-04 focusing on OpenSSL repo contributions. This period centered on stabilizing big-endian data handling in the cryptographic assembler for ARMv9 and improving INF/NAN formatting visibility in BIO_printf, delivering reliability improvements and portability.
April 2025
2 Commits
Apr 1, 2025Monthly summary for 2025-04 focusing on OpenSSL repo contributions. This period centered on stabilizing big-endian data handling in the cryptographic assembler for ARMv9 and improving INF/NAN formatting visibility in BIO_printf, delivering reliability improvements and portability.
March 2025
11 Commits • 3 Features
Mar 1, 2025Monthly summary for 2025-03: Delivered critical stability and performance improvements in the OpenSSL repo, with robust RCU retirement ordering, memory ordering fixes, and resource optimization; hardened QUIC qlog error handling; strengthened CI/test pipelines with artifact reliability and test stability; and simplified PPC64LE build configuration for newer toolchains. These changes reduce runtime risk, improve cross-arch support, and accelerate release readiness.
11 Commits • 3 Features
Mar 1, 2025Monthly summary for 2025-03: Delivered critical stability and performance improvements in the OpenSSL repo, with robust RCU retirement ordering, memory ordering fixes, and resource optimization; hardened QUIC qlog error handling; strengthened CI/test pipelines with artifact reliability and test stability; and simplified PPC64LE build configuration for newer toolchains. These changes reduce runtime risk, improve cross-arch support, and accelerate release readiness.
March 2025
February 2025
9 Commits • 3 Features
Feb 1, 2025February 2025 highlights: Implemented RCU stability and performance improvements in OpenSSL, fixed RCU-related regressions including an Apple M1 revert, standardized CRYPTO_atomic guards and cleaned up atomic fallbacks, applied Windows atomic correctness fix, and strengthened CI with thread-sanitizer enhancements and ARM64 runner updates. Impact: improved concurrency reliability and performance across platforms, cleaner code, faster feedback loops, and safer releases.
February 2025
9 Commits • 3 Features
Feb 1, 2025February 2025 highlights: Implemented RCU stability and performance improvements in OpenSSL, fixed RCU-related regressions including an Apple M1 revert, standardized CRYPTO_atomic guards and cleaned up atomic fallbacks, applied Windows atomic correctness fix, and strengthened CI with thread-sanitizer enhancements and ARM64 runner updates. Impact: improved concurrency reliability and performance across platforms, cleaner code, faster feedback loops, and safer releases.
January 2025
8 Commits
Jan 1, 2025January 2025 performance summary for openssl/openssl focused on stabilizing the test infrastructure, improving cross‑platform behavior, and reducing CI noise to accelerate reliable releases. Key work centered on the test harness, DTLS/TLS test reliability, and TLS server IPC handling. The changes deliver measurable business value by enabling more predictable test outcomes, faster feedback loops for developers, and more stable cross‑platform behavior that reduces release risk.
8 Commits
Jan 1, 2025January 2025 performance summary for openssl/openssl focused on stabilizing the test infrastructure, improving cross‑platform behavior, and reducing CI noise to accelerate reliable releases. Key work centered on the test harness, DTLS/TLS test reliability, and TLS server IPC handling. The changes deliver measurable business value by enabling more predictable test outcomes, faster feedback loops for developers, and more stable cross‑platform behavior that reduces release risk.
January 2025
December 2024
7 Commits
Dec 1, 2024December 2024 OpenSSL monthly summary for openssl/openssl. Focused on stability improvements in runtime correctness, test determinism, and CI/platform reliability to reduce flaky outcomes and accelerate safe releases. Delivered targeted fixes for memory-safety, test stability, and platform compatibility, alongside CI workflow hardening to support cross‑platform builds.
December 2024
7 Commits
Dec 1, 2024December 2024 OpenSSL monthly summary for openssl/openssl. Focused on stability improvements in runtime correctness, test determinism, and CI/platform reliability to reduce flaky outcomes and accelerate safe releases. Delivered targeted fixes for memory-safety, test stability, and platform compatibility, alongside CI workflow hardening to support cross‑platform builds.
October 2024
1 Commits • 1 Features
Oct 1, 2024October 2024 monthly summary for openssl/openssl: Delivered enhanced Signature Algorithm Reporting with lowercase display for ed25519 and ed448 and a refactored, more specific output format for brainpool and RSA-PSS to improve clarity and usability as parameter values. This work fixes ambiguity in the Signature Algorithms output and improves interoperability with TLS clients and automation tooling. The changes were implemented in the commit f30d6ba455e06572250e75132045eedde5d1daf0 under openssl/openssl.
1 Commits • 1 Features
Oct 1, 2024October 2024 monthly summary for openssl/openssl: Delivered enhanced Signature Algorithm Reporting with lowercase display for ed25519 and ed448 and a refactored, more specific output format for brainpool and RSA-PSS to improve clarity and usability as parameter values. This work fixes ambiguity in the Signature Algorithms output and improves interoperability with TLS clients and automation tooling. The changes were implemented in the commit f30d6ba455e06572250e75132045eedde5d1daf0 under openssl/openssl.
October 2024
February 2024
1 Commits • 1 Features
Feb 1, 2024February 2024 monthly summary for openssl/openssl: Delivered CIFuzz Workflow Storage Optimization to reduce artifact footprint in fuzzing CI. Removed unnecessary files from the CIFuzz workflow, freeing disk space and contributing to faster CI cycles. This supports more scalable fuzzing, lower storage costs, and quicker feedback to developers.
February 2024
1 Commits • 1 Features
Feb 1, 2024February 2024 monthly summary for openssl/openssl: Delivered CIFuzz Workflow Storage Optimization to reduce artifact footprint in fuzzing CI. Removed unnecessary files from the CIFuzz workflow, freeing disk space and contributing to faster CI cycles. This supports more scalable fuzzing, lower storage costs, and quicker feedback to developers.
Activity
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Quality Metrics
Correctness92.0%
Maintainability92.0%
Architecture87.0%
Performance83.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
AssemblyCMarkdownPerlShellTextYAML
Technical Skills
API developmentARM assemblyAssembly optimizationBackend DevelopmentBig-endian systemsBug FixingBug fixingBuild System ConfigurationBuild SystemsCC ProgrammingC programmingCI/CDCode cleanupCompiler warnings
Repositories Contributed To
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