Universal, safe & secure firmware OTA updates.

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Sibros Bootloaders

Universal. Safe. Secure.

Sibros bootloaders work across the widest range of single or multi-core architectures, microcontroller vendors and product families. Our shared platform makes it easy for OEMs to support new chips and customer specific requirements with industry leading integration time.

Perform safe, secure and reliable FOTA updates with bootloaders coded and hardened by MISRA C, SEI Cert C, ISO 26262 and IEEE Uptane cybersecurity standards.

Sibros Bootloaders

Why Sibros Bootloaders?

Expertise Behind Millions of ECUs Updates Deployed.

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Production and field proven, ready-to-run
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Optimized memory footprint for single or multi-core
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Highly configurable and easy to maintain
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Supports UDS over any communication bus
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Safe & Secure - MISRA C, SEI C, ISO 26262 & Uptane
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30-day guaranteed integration of initial system

Key Features

OTA Deep Updater dual bank updates

Single & Dual Bank Updates

Both Single Application Update and A/B (redundant) software and calibration updates are supported


Reusable Core Bootloader

Modular, layered design allows same bootloader core functionality on all ECUs within vehicles regardless of microcontroller

background updates

Bootloader Self Updates

Enable safe and recoverable update of the bootloader itself regardless of interruption of power in any phase during the update using the Sibros provided Bootloader Assist Module (BAM)

Bootloaders updates

Safe Background Updates

Background updates integrated as part of the application (for dual bank ECUs)

Integrity Checks for Reliability

Integrity Checks for Reliability

Live CRC calculation and verification to prevent jumping to a corrupt application and prevent corrupt calibration blocks

Finger Print reporting icon

Version & Fingerprint Reporting

Bootloader can report all identification information for all images on the device (software ID, component ID, part number, serial number)

Verification Checks to Handle Failure Cases

Verification Checks to Handle Failure Cases

Standard update sequence or customer defined update sequences


Power & Network Failure Resilient

Recoverable bootloader that always maintains safe state by performing integrity and compatibility checks as part of the boot-up sequence

Fully customizable

Fully Customizable

Supports custom features, services and routines for ECU configuration, diagnostics and application updates

Quick Turnaround Time

Quick Turnaround Time

Quick turnaround time for new features and new bootloaders, due to well designed and layered software architecture

Update sequences

Custom Sequences

Standard update sequence or customer defined update sequences

Universal Download Tool

Universal Download Tool

Standalone tool to communicate with the bootloader and download images via CAN or Ethernet

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Security Access

Security Access using custom or standard asymmetric or symmetric cryptographic algorithms such as HMAC, CMAC, RSA, ECC, etc

Secure Time

Secure Time

The bootloader supports the addition of secure time using a timeserver and verification of timestamp metadata to prevent freeze attacks

Secure Communication

Secure Communication

Data Encryption and Decryption using AES, ECC, etc

Secure Key Storage -Rotation

Secure Key Storage and Rotation

Key storage and rotation for encrypted and/or verified communication

Encrypted Compressed Downloads.

Encrypted / Compressed Downloads

Full support for Encrypted/Compressed data transfer on-the-fly

Custom HSM Integration

Custom HSM Integration

For all security features, the bootloader supports full software based crypto or integration of HSM modules

Secure Communication

Image Signature Verification

Verify authenticity of image downloads using standard asymmetric or symmetric cryptographic algorithms (HMAC, CMAC, RSA, ECC)

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Uptane Compliant

Sibros bootloaders meet all requirements for Uptane and are OTA Software Update ready

See All Features & Technical Specs

Request full product specs for Sibros bootloaders.

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