cloudflare/boring
Mar 2025 – Feb 2026
4 Months active
Languages Used
RustYAMLCTOML
Technical Skills
API DesignBuild System ConfigurationBuild SystemsCryptographyDependency ManagementFeature Flags
Christopher Patton
PROFILE
Christopher Patton
Worked on the cloudflare/boring repository, delivering eight features and addressing cryptographic reliability over four months. Focused on Rust and C, the work included overhauling FIPS feature management, simplifying the TLS API, and enabling post-quantum cryptography by default. Developed a flexible HMAC API and improved cipher metadata access, supporting incremental processing and OpenSSL integration. Enhanced build system configuration and dependency management to improve compatibility with precompiled BoringSSL and reduce maintenance risk. Added regression tests for cipher NID stability and GCM cipher retrieval, strengthening reliability in cryptographic workflows and ensuring robust, test-driven improvements to the project’s security and usability.
Overall Statistics
Feature vs Bugs
89%Features
Repository Contributions
14Total
Bugs
1
Commits
14
Features
8
Lines of code
789
Activity Months4
Your Network
392 peopleSame Organization
@cloudflare.com361
Work History
February 2026
2 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for cloudflare/boring: Focused on cipher NID stability and GCM cipher retrieval. Consolidated NID handling, fixed Cipher::from_nid() to use EVP_get_cipherbynid() for GCM NIDs, and added regression tests for NID consistency and GCM ciphers. Result: more reliable cipher resolution, reduced risk of runtime errors in cryptographic workflows, and stronger regression coverage.
2 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for cloudflare/boring: Focused on cipher NID stability and GCM cipher retrieval. Consolidated NID handling, fixed Cipher::from_nid() to use EVP_get_cipherbynid() for GCM NIDs, and added regression tests for NID consistency and GCM ciphers. Result: more reliable cipher resolution, reduced risk of runtime errors in cryptographic workflows, and stronger regression coverage.
February 2026
January 2026
2 Commits • 2 Features
Jan 1, 2026January 2026: Delivered core crypto API improvements in cloudflare/boring. Key features shipped include a flexible HMAC API with init, update, and finalize, and a cipher NID accessor (nid()) with tests validating behavior across multiple cipher types. No critical bugs fixed this month. Impact: easier, more flexible HMAC usage and reliable access to cipher metadata, enabling smoother integration with OpenSSL-based flows and future crypto primitives. Technologies demonstrated include Rust API design, OpenSSL/FFI integration, incremental processing patterns, and robust unit testing.
January 2026
2 Commits • 2 Features
Jan 1, 2026January 2026: Delivered core crypto API improvements in cloudflare/boring. Key features shipped include a flexible HMAC API with init, update, and finalize, and a cipher NID accessor (nid()) with tests validating behavior across multiple cipher types. No critical bugs fixed this month. Impact: easier, more flexible HMAC usage and reliable access to cipher metadata, enabling smoother integration with OpenSSL-based flows and future crypto primitives. Technologies demonstrated include Rust API design, OpenSSL/FFI integration, incremental processing patterns, and robust unit testing.
September 2025
5 Commits • 3 Features
Sep 1, 2025September 2025 monthly summary for cloudflare/boring: Delivered three key feature initiatives that simplify usage, improve TLS API clarity, and strengthen default cryptography, with direct code changes and accompanying tests. Key features delivered: - API surface simplification and cleanup: removed unused default kx-* features and obsolete FIPS-related comments to simplify the TLS API and reduce maintenance risk. - TLS curve API overhaul: removed the SslCurve API and reintroduced the curve() method on SslRef to expose the curve ID, including tests. - PQ cryptography enabled by default: removed the pq-experimental flag and enabled PQ cryptography by default across the project, with an override available. Impact and outcomes: - Reduced API surface and clearer TLS API surface, enabling easier onboarding and lower risk of misconfiguration. - Improved observability and interoperability through explicit access to the curve ID on SslRef. - Strengthened security posture by enabling PQ cryptography by default, with opt-out preserves flexibility for specialized work. Technical and business value: - Cleaner API reduces long-term maintenance costs and accelerates feature iteration. - Tests accompanying the curve API change help prevent regressions and support reliable deployments. - Default PQ cryptography aligns with security policy goals, improving baseline crypto strength for users.
5 Commits • 3 Features
Sep 1, 2025September 2025 monthly summary for cloudflare/boring: Delivered three key feature initiatives that simplify usage, improve TLS API clarity, and strengthen default cryptography, with direct code changes and accompanying tests. Key features delivered: - API surface simplification and cleanup: removed unused default kx-* features and obsolete FIPS-related comments to simplify the TLS API and reduce maintenance risk. - TLS curve API overhaul: removed the SslCurve API and reintroduced the curve() method on SslRef to expose the curve ID, including tests. - PQ cryptography enabled by default: removed the pq-experimental flag and enabled PQ cryptography by default across the project, with an override available. Impact and outcomes: - Reduced API surface and clearer TLS API surface, enabling easier onboarding and lower risk of misconfiguration. - Improved observability and interoperability through explicit access to the curve ID on SslRef. - Strengthened security posture by enabling PQ cryptography by default, with opt-out preserves flexibility for specialized work. Technical and business value: - Cleaner API reduces long-term maintenance costs and accelerates feature iteration. - Tests accompanying the curve API change help prevent regressions and support reliable deployments. - Default PQ cryptography aligns with security policy goals, improving baseline crypto strength for users.
September 2025
March 2025
5 Commits • 2 Features
Mar 1, 2025March 2025 monthly summary for cloudflare/boring focusing on FIPS feature management, build reliability, and PQ-mode interoperability. The work delivered reduces configuration complexity, improves compatibility with precompiled BoringSSL, and strengthens security posture in KEX, delivering direct business value via easier deployments and more robust crypto tooling.
March 2025
5 Commits • 2 Features
Mar 1, 2025March 2025 monthly summary for cloudflare/boring focusing on FIPS feature management, build reliability, and PQ-mode interoperability. The work delivered reduces configuration complexity, improves compatibility with precompiled BoringSSL, and strengthens security posture in KEX, delivering direct business value via easier deployments and more robust crypto tooling.
Activity
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Quality Metrics
Correctness95.8%
Maintainability91.4%
Architecture91.4%
Performance85.8%
AI Usage20.0%
Skills & Technologies
Programming Languages
CRustTOMLYAML
Technical Skills
API DesignAPI designBuild System ConfigurationBuild SystemsCI/CDCode MaintenanceCryptographyDependency ManagementDocumentationFeature FlagsNetwork SecurityRustRust programmingSSL/TLSSystem Configuration
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