
Worked on cryptographic and API enhancements in the dotnet/runtime repository, focusing on secure key management, post-quantum cryptography, and performance improvements. Delivered features such as ML-DSA support in COSE for signing and verification, hardware-backed TLS integration with TPM keys, and a memory-efficient ReadOnlySpan<byte> constructor for CngProperty. Leveraged C#, C++, and OpenSSL to implement native interoperability, refactor cryptographic APIs, and expand test coverage for reliability. Also contributed to dotnet-api-docs by clarifying JScriptEvaluate documentation, improving developer onboarding. The work emphasized robust cryptographic workflows, efficient system programming, and clear documentation, demonstrating depth in backend development and cryptography API design.
March 2026: Delivered a memory-efficient ReadOnlySpan<byte> constructor for CngProperty in the dotnet/runtime API, with full unit tests and integration validation. This change reduces allocations in cryptographic property handling and improves runtime performance. No major bugs fixed this month. Overall impact includes stronger API performance, reliability, and measurable efficiency gains in crypto workflows. Technologies demonstrated include ReadOnlySpan<byte>, API design, unit testing, and integration with existing CNG components.
March 2026: Delivered a memory-efficient ReadOnlySpan<byte> constructor for CngProperty in the dotnet/runtime API, with full unit tests and integration validation. This change reduces allocations in cryptographic property handling and improves runtime performance. No major bugs fixed this month. Overall impact includes stronger API performance, reliability, and measurable efficiency gains in crypto workflows. Technologies demonstrated include ReadOnlySpan<byte>, API design, unit testing, and integration with existing CNG components.
July 2025: Delivered ML-DSA API enhancements in dotnet/runtime introducing byte-array APIs and Pre-hash support, enabling more flexible and secure cryptographic workflows for signatures and pre-hashed data. The work includes API refactors, input validation improvements, and expanded test coverage to ensure reliability across cryptographic paths.
July 2025: Delivered ML-DSA API enhancements in dotnet/runtime introducing byte-array APIs and Pre-hash support, enabling more flexible and secure cryptographic workflows for signatures and pre-hashed data. The work includes API refactors, input validation improvements, and expanded test coverage to ensure reliability across cryptographic paths.
June 2025: Implemented ML-DSA support in COSE for signing and verification in dotnet/runtime, stabilized end-to-end ML-DSA workflows, and strengthened testing infrastructure. Refactored core components to support multiple key types/algorithms and resolved build issues related to cryptography usage, enabling more reliable ML-DSA workflows and broader security capabilities.
June 2025: Implemented ML-DSA support in COSE for signing and verification in dotnet/runtime, stabilized end-to-end ML-DSA workflows, and strengthened testing infrastructure. Refactored core components to support multiple key types/algorithms and resolved build issues related to cryptography usage, enabling more reliable ML-DSA workflows and broader security capabilities.
April 2025 monthly summary focusing on improving JScriptEvaluate documentation in dotnet-api-docs to enhance developer understanding and reduce support overhead. The work aligns with ongoing standards for API documentation quality and contributes to faster onboarding for .NET developers using JScriptEvaluate.
April 2025 monthly summary focusing on improving JScriptEvaluate documentation in dotnet-api-docs to enhance developer understanding and reduce support overhead. The work aligns with ongoing standards for API documentation quality and contributes to faster onboarding for .NET developers using JScriptEvaluate.
March 2025 (repo filipnavara/runtime) delivered security-focused feature work and PQC groundwork with a clear path to OpenSSL interoperability across languages. Key features delivered include TLS with TPM Key Support and OpenSSL Compatibility, and ML-DSA Post-Quantum Cryptography Support (OpenSSL Integration). Major bugs fixed include correcting providers EC export and key derivation for newer OpenSSL and adding TLS with TPM keys tests to prevent regressions. Overall impact: strengthened cryptographic security posture through hardware-backed TLS and PQC groundwork, improved cross-version OpenSSL compatibility, and established multi-language interop with C/C++ and C# wrappers. Technologies demonstrated: OpenSSL cryptography, TPM integration, cross-language native interop, cryptographic key management, and test automation.
March 2025 (repo filipnavara/runtime) delivered security-focused feature work and PQC groundwork with a clear path to OpenSSL interoperability across languages. Key features delivered include TLS with TPM Key Support and OpenSSL Compatibility, and ML-DSA Post-Quantum Cryptography Support (OpenSSL Integration). Major bugs fixed include correcting providers EC export and key derivation for newer OpenSSL and adding TLS with TPM keys tests to prevent regressions. Overall impact: strengthened cryptographic security posture through hardware-backed TLS and PQC groundwork, improved cross-version OpenSSL compatibility, and established multi-language interop with C/C++ and C# wrappers. Technologies demonstrated: OpenSSL cryptography, TPM integration, cross-language native interop, cryptographic key management, and test automation.

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