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Rithic Chellaram Hariharan

PROFILE

Rithic Chellaram Hariharan

Worked on the Zephyr and nxp-upstream/zephyr repositories to enhance secure connectivity and system reliability for embedded devices. Delivered TLS 1.2 and 1.3 ciphersuite support and persistent TLS/DTLS session caching, enabling secure and efficient cloud and IoT communications even after device reboots. Improved memory management visibility and HTTP client configurability by exposing heap usage metrics and making buffer sizes tunable via Kconfig. Addressed timeout handling edge cases to improve network robustness. The work leveraged C programming, configuration management, and embedded systems expertise, focusing on practical improvements that reduce resource usage and streamline secure, reliable device communications in production environments.

Overall Statistics

Feature vs Bugs

80%Features

Repository Contributions

7Total
Bugs
1
Commits
7
Features
4
Lines of code
348
Activity Months3

Your Network

754 people

Work History

May 2026

3 Commits • 2 Features

May 1, 2026

May 2026 performance summary for zephyrproject-rtos/zephyr: Delivered three focused updates across memory management visibility, HTTP client configurability, and timeout reliability. These changes improve observability for memory-constrained deployments, enable memory usage tuning via Kconfig, and enhance HTTP client robustness against timing edge cases. The work strengthens business value by reducing debugging effort, enabling tailored memory footprints, and improving network reliability in production scenarios.

April 2026

3 Commits • 1 Features

Apr 1, 2026

April 2026 monthly summary for nxp-upstream/zephyr: Delivered persistent TLS/DTLS session caching across device reboots, enabling session resumption after power cycles; backend-agnostic via the settings subsystem; integrated into core networking and the http_get sample via an overlay; added configurable session cache prefix; updated documentation and samples to demonstrate usage. Impact: reduces TLS handshake overhead after reboots, lowering CPU and energy use while improving connection reliability for devices with frequent restarts. Technologies demonstrated include TLS/DTLS, session caching, Zephyr settings subsystem, Kconfig exposure, and sample documentation practices.

March 2026

1 Commits • 1 Features

Mar 1, 2026

March 2026 monthly summary for nxp-upstream/zephyr: Delivered TLS security enhancements for cloud and IoT connectivity, including new TLS 1.2/1.3 ciphersuites in mbedTLS and a fix to the signing algorithm in an existing ciphersuite. The work strengthens secure communications across devices and cloud services, improves regulatory alignment, and provides clear commit-level traceability.

Activity

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Quality Metrics

Correctness100.0%
Maintainability91.4%
Architecture100.0%
Performance88.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

CYAML

Technical Skills

C programmingconfiguration managementembedded systemsmemory managementnetwork programmingsecurity protocols

Repositories Contributed To

2 repos

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

nxp-upstream/zephyr

Mar 2026 Apr 2026
2 Months active

Languages Used

CYAML

Technical Skills

C programmingembedded systemssecurity protocolsnetwork programming

zephyrproject-rtos/zephyr

May 2026 May 2026
1 Month active

Languages Used

C

Technical Skills

C programmingconfiguration managementembedded systemsmemory managementnetwork programming