ISO/SAE 21434 · UN R155

ISO/SAE 21434 Automotive Cybersecurity Engineering

KopherBit provides ISO/SAE 21434 and UN R155 / R156-aligned engineering support for TARA, cybersecurity concepts, ECU protection, weakness validation, and KDP Library / ALM evidence traceability.

How KopherBit supports ISO/SAE 21434

Automotive cybersecurity has to reach ECU design, communication matrices, diagnostics, software update, and key management. KopherBit uses KDP Library to manage specifications, TARA templates, requirements, test evidence, and cybersecurity knowledge assets, helping connect TARA analysis, cybersecurity goals, design, validation, and vulnerability closure into ALM-backed engineering workflows.

Engineering Focus

TARA and Cybersecurity Goals

Set up traceability for items, assets, damage scenarios, threat scenarios, attack paths, risk ratings, and cybersecurity goals.

Cybersecurity Concept Implementation

Translate cybersecurity goals into CSC / TSC, Secure Boot, Secure Flash, SecOC, diagnostic authorization, key management, and software update protection.

KDP Library and Weakness Evidence

Adopt fuzzing, static analysis, penetration testing, and issue tracking, then consolidate results, vulnerability closure, and cybersecurity evidence in KDP Library or existing ALM tools.

Engineering Scope

01

TARA Data Model and Templates

Build fields and templates for items, assets, damage scenarios, threat scenarios, attack paths, attack feasibility, and risk ratings.

02

Security Requirements and ECU Design

Turn cybersecurity goals, CSC / TSC, diagnostic permissions, communication protection, key management, and update protection into engineering requirements.

03

Product and Supply Chain Traceability

Organize supplier security responsibilities, SBOM / vulnerability information, software update records, cybersecurity defect handling, and release evidence for post-production maintenance.

04

Security Validation Tooling

Support fuzzing, static analysis, weakness scanning, penetration testing, diagnostic security tests, and result consolidation.

05

KDP Library and Evidence Tracking

Organize requirements, design, tests, vulnerability closure, and software update records in KDP Library or existing ALM tools as traceable evidence for product review and UN R155 preparation.

Deliverables

ISO/SAE 21434 Engineering Work Products

  • Item definition
  • TARA report
  • Cybersecurity goals
  • CSC / TSC
  • Security requirement traceability

ECU Security Design and Validation

  • Secure Boot / Secure Flash planning
  • Diagnostic authorization and key management
  • Fuzzing / weakness test records
  • Vulnerability closure and re-test evidence

ALM / KDP Library Evidence Package

  • Requirement-to-test traceability
  • Version and update records
  • Gate review checklist
  • UN R155 / R156 preparation material

Standards

ISO/SAE 21434
Road vehicles — Cybersecurity engineering
UN R155
CSMS — Cyber Security Management System
UN R156
SUMS — Software Update Management System

FAQ

Does KopherBit provide ISO/SAE 21434 certification?

KopherBit supports ISO/SAE 21434-aligned engineering rollout, documentation, toolchain setup, and validation evidence. Formal certification or type approval remains with the customer and designated assessment or certification bodies.

Can the engagement focus on a single ECU or existing project?

Yes. Common starting points include VCU, TBOX, EVCC, BCM, diagnostic services, and OTA update mechanisms, with TARA and traceability built before validation evidence is completed.

Is KDP Library mandatory?

No. KDP Library can centralize specifications, templates, requirements, and evidence, but the workflow can also connect to an existing ALM, PLM, or issue tracking environment.

Start cybersecurity tool adoption

We help review ECU architecture, communication and diagnostic interfaces, update mechanisms, KDP Library / ALM toolchains, TARA needs, and validation gaps, then turn them into an executable engineering rollout plan.