envoyproxy/envoy-openssl
Oct 2024 – Sep 2025
6 Months active
Languages Used
BUILDCC++ShellBazelBzlStarlarkPython
Technical Skills
Build System ConfigurationBuild SystemsC++C/C++Integration TestingOpenSSL Compatibility
Dario Cillerai
PROFILE
Dario Cillerai
During six months on the envoyproxy/envoy-openssl repository, Daniel Cillera enhanced cross-platform TLS and cryptography integration by expanding the BoringSSL/OpenSSL compatibility layer and modernizing build systems. He implemented new C++ interfaces and wrappers to support advanced X.509 handling, improved FIPS separation, and added EVP_get_digestbyname support, addressing evolving security and compliance needs. Daniel stabilized multi-architecture builds using Bazel and CMake, introduced targeted bug fixes for test reliability, and refined patching workflows to reduce maintenance risk. His work in C, C++, and shell scripting improved build determinism, test accuracy, and deployment reliability, demonstrating a deep understanding of secure, maintainable system integration.
Overall Statistics
Feature vs Bugs
53%Features
Repository Contributions
35Total
Bugs
7
Commits
35
Features
8
Lines of code
495,444
Activity Months6
Your Network
2623 people
Work History
September 2025
6 Commits • 2 Features
Sep 1, 2025September 2025 monthly summary for envoyproxy/envoy-openssl focusing on reliability, compatibility, and test stability. Key features delivered include bssl-compat tooling improvements and EVP_get_digestbyname support. Major bugs fixed to improve test accuracy and header processing. The work enhances cross-OpenSSL/BoringSSL compatibility, reduces patching risk, and strengthens TLS fingerprinting and header integrity.
6 Commits • 2 Features
Sep 1, 2025September 2025 monthly summary for envoyproxy/envoy-openssl focusing on reliability, compatibility, and test stability. Key features delivered include bssl-compat tooling improvements and EVP_get_digestbyname support. Major bugs fixed to improve test accuracy and header processing. The work enhances cross-OpenSSL/BoringSSL compatibility, reduces patching risk, and strengthens TLS fingerprinting and header integrity.
September 2025
August 2025
5 Commits • 1 Features
Aug 1, 2025Monthly work summary for 2025-08: Delivered key TLS/crypto modernization and build stabilization for envoyproxy/envoy-openssl, driving security improvements, interoperability, and CI reliability. Established groundwork for HTTP/3/QUIC readiness and smoother future releases.
August 2025
5 Commits • 1 Features
Aug 1, 2025Monthly work summary for 2025-08: Delivered key TLS/crypto modernization and build stabilization for envoyproxy/envoy-openssl, driving security improvements, interoperability, and CI reliability. Established groundwork for HTTP/3/QUIC readiness and smoother future releases.
June 2025
5 Commits • 1 Features
Jun 1, 2025June 2025 monthly wrap-up for envoy-openssl: Delivered key cross-compatibility improvements for the BoringSSL/OpenSSL integration and stabilized multi-arch builds. Focus areas: (1) BoringSSL compatibility layer improvements with updated validation and error handling; (2) Platform-specific build fixes to ensure 64-bit compatibility on s390/s390x/zarch/ppc64le. Impact: reduced runtime errors, smoother deployments, and lower maintenance costs across environments.
5 Commits • 1 Features
Jun 1, 2025June 2025 monthly wrap-up for envoy-openssl: Delivered key cross-compatibility improvements for the BoringSSL/OpenSSL integration and stabilized multi-arch builds. Focus areas: (1) BoringSSL compatibility layer improvements with updated validation and error handling; (2) Platform-specific build fixes to ensure 64-bit compatibility on s390/s390x/zarch/ppc64le. Impact: reduced runtime errors, smoother deployments, and lower maintenance costs across environments.
June 2025
May 2025
12 Commits • 2 Features
May 1, 2025Monthly summary for 2025-05 focusing on deliverables for envoyproxy/envoy-openssl; highlights key features delivered, major bugs fixed, and overall impact. Emphasis on business value, reliability, and technical excellence.
May 2025
12 Commits • 2 Features
May 1, 2025Monthly summary for 2025-05 focusing on deliverables for envoyproxy/envoy-openssl; highlights key features delivered, major bugs fixed, and overall impact. Emphasis on business value, reliability, and technical excellence.
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for envoyproxy/envoy-openssl focused on readability and maintainability improvements in the BIO io_handle path. Delivered a targeted signature readability enhancement without changing behavior, aligning with upstream expectations and reducing future maintenance risk.
1 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for envoyproxy/envoy-openssl focused on readability and maintainability improvements in the BIO io_handle path. Delivered a targeted signature readability enhancement without changing behavior, aligning with upstream expectations and reducing future maintenance risk.
April 2025
October 2024
6 Commits • 1 Features
Oct 1, 20242024-10 monthly summary for envoyproxy/envoy-openssl focused on delivering essential X509 capabilities, stabilizing builds and tests, and tightening artifact management to improve reliability and business value. Key outcomes include enabling complete X509 handling in the bSSL compatibility layer, ensuring correct Linux-specific MaxMind GeoIP artifact usage, and reducing test flakiness through test stabilization and feature gating. These changes enhance security-related TLS behavior, build determinism, and CI feedback speed, supporting reliable production deployments and accurate GeoIP provider operation.
October 2024
6 Commits • 1 Features
Oct 1, 20242024-10 monthly summary for envoyproxy/envoy-openssl focused on delivering essential X509 capabilities, stabilizing builds and tests, and tightening artifact management to improve reliability and business value. Key outcomes include enabling complete X509 handling in the bSSL compatibility layer, ensuring correct Linux-specific MaxMind GeoIP artifact usage, and reducing test flakiness through test stabilization and feature gating. These changes enhance security-related TLS behavior, build determinism, and CI feedback speed, supporting reliable production deployments and accurate GeoIP provider operation.
Activity
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Quality Metrics
Correctness83.4%
Maintainability84.6%
Architecture77.4%
Performance71.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
BUILDBazelBzlCC++PythonShellStarlark
Technical Skills
BIOBazelBoringSSLBuild SystemBuild System ConfigurationBuild SystemsBuild Systems (CMake)CC DevelopmentC ProgrammingC programmingC++C++ DevelopmentC/C++Compatibility Layer
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