NordicBuilder/sdk-nrf
Oct 2024 – Nov 2024
2 Months active
Languages Used
YAMLCCMakeScript
Technical Skills
Embedded SystemsFirmware DevelopmentPartition ManagementCryptographyDriver DevelopmentHardware Integration
Sigurd Hellesvik
PROFILE
Sigurd Hellesvik
Sigurd Hellesvik contributed to the NordicBuilder/sdk-nrf and nrfconnect/sdk-nrf repositories by developing and enhancing secure firmware features for Nordic nRF devices. He stabilized storage partitioning to prevent mcuboot and TFM storage conflicts, improving OTA update reliability and secure boot flow. Using C and CMakeScript, he added digest signing support to the Silex crypto driver and enabled hardware-backed attestation for nRF54L15, strengthening device identity verification. Sigurd also implemented OTP memory read access in Trusted Firmware-M, expanding secure personalization workflows. His work demonstrated depth in embedded systems, cryptography, and partition management, addressing complex integration and security challenges across the firmware stack.
Overall Statistics
Feature vs Bugs
75%Features
Repository Contributions
4Total
Bugs
1
Commits
4
Features
3
Lines of code
180
Activity Months3
Your Network
573 peopleWork History
April 2026
1 Commits • 1 Features
Apr 1, 2026April 2026: Delivered OTP memory read access in TF-M for nRF54L, enabling reading of OTP areas via tfm_platform_mem_read. This expands TF-M capabilities and supports secure boot/personalization workflows for NRF54L devices. Commit c0c43959d53e864d380c94b2da6b61eec3ad92cb applied; signed-off by Sigurd Hellesvik.
1 Commits • 1 Features
Apr 1, 2026April 2026: Delivered OTP memory read access in TF-M for nRF54L, enabling reading of OTP areas via tfm_platform_mem_read. This expands TF-M capabilities and supports secure boot/personalization workflows for NRF54L devices. Commit c0c43959d53e864d380c94b2da6b61eec3ad92cb applied; signed-off by Sigurd Hellesvik.
April 2026
November 2024
2 Commits • 2 Features
Nov 1, 2024Monthly Summary for 2024-11 focused on delivering cryptographic security enhancements for Nordic nRF devices within the NordicBuilder/sdk-nrf repository. Work centered on enabling secure digest signing, improving device attestation, and strengthening identity verification pathways while maintaining a lean bug-fix footprint.
November 2024
2 Commits • 2 Features
Nov 1, 2024Monthly Summary for 2024-11 focused on delivering cryptographic security enhancements for Nordic nRF devices within the NordicBuilder/sdk-nrf repository. Work centered on enabling secure digest signing, improving device attestation, and strengthening identity verification pathways while maintaining a lean bug-fix footprint.
October 2024
1 Commits
Oct 1, 2024October 2024 — NordicBuilder/sdk-nrf: Stabilized storage partitioning to prevent mcuboot/TFM storage conflicts and improve OTA firmware update reliability. Implemented partition layout change so mcuboot is placed before TFM storage, reducing boot-time risks and aligning with secure boot requirements. Reference patch: partition_manager: Make tfm storage partitions avoid partitioning conflict (commit 4182d31b1e8b02b4a8056d5b73fadaee8869deca).
1 Commits
Oct 1, 2024October 2024 — NordicBuilder/sdk-nrf: Stabilized storage partitioning to prevent mcuboot/TFM storage conflicts and improve OTA firmware update reliability. Implemented partition layout change so mcuboot is placed before TFM storage, reducing boot-time risks and aligning with secure boot requirements. Reference patch: partition_manager: Make tfm storage partitions avoid partitioning conflict (commit 4182d31b1e8b02b4a8056d5b73fadaee8869deca).
October 2024
Activity
Loading activity data...
Quality Metrics
Correctness90.0%
Maintainability85.0%
Architecture87.6%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CCMakeScriptYAML
Technical Skills
C programmingCryptographyDriver DevelopmentEmbedded SystemsFirmware DevelopmentHardware IntegrationPartition ManagementSecurityTrusted Execution Environments (TEE)embedded systemsfirmware development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
nrfconnect/sdk-nrf
Apr 2026 – Apr 2026
1 Month active
Languages Used
C
Technical Skills
C programmingembedded systemsfirmware development