Platform security

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Security Model

Top-level requirements for secure design of all products, outlining the key goals for designing products with known security properties. We recommend security leads to read this document first.

Platform Security Boot Guide

(BOOT-PSG)
This specification, formerly called Trusted Boot and Firmware Update (PSA-TBFU), outlines the system and firmware technical requirements for firmware boot and update.

Platform Security Requirements

(PSR)
This document specifies the bare-minimum security requirements expected of System-on-Chips (SoC) across multiple markets.

Authenticated Debug Access Control Specification

(ADAC)
This specification defines an extensible method for how to build strong authentication into the debug process.

Firmware Framework for M

(FF-M)
Specification for a standard programming environment and fundamental Root of Trust (RoT) for secure applications on an M-profile product.

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FF-M Extensions

The FF-M Extensions document introduces a set of updates and extensions to the Firmware Framework for M specification (DEN 0063). This separate extensions document is to enable wider review and feedback on the proposed changes. When the proposed extensions are sufficiently stable, they will be integrated into the latest version 1.1 of DEN0063.

Trusted Base System Architecture for M

(TBSA-M)
Specification for hardware requirements for Armv8-M products, including best practice recommendations for Armv6-M and Armv7-M.

Firmware Framework for A

(FF-A)
Specification for a standard programming environment and fundamental Root of Trust (RoT) for secure applications on an A-profile product.

Firmware architecture for firmware updates on A-class devices

This document defines the standard infrastructure to enable robust FW updates on A-class products.

Platform Security Guide for A-Profile

(PSG-A)

This guide contains recommendations for designing systems based on Arm processors that meet the security requirements described in Platform Security Requirements (PSR).

Trusted Firmware-M

(TF-M)
Provides reference implementation of secure world software to implement threat mitigations defined in common use cases

Trusted Firmware-A

(TF-A)
Provides reference implementation of secure world software for Armv7-A and Armv8-A processors.

Cryptography API

Cryptography API provides symmetric and asymmetric key, Hash, RNG, and key storage services with support for different key lifetime policies.

Secure Storage API

Supports data protection services on the device, providing integrity and confidentiality protection

Attestation API

Provides a way to obtain a health check token from the device, attesting of its components and serial numbers

Firmware Update API

Defines a standard firmware interface for installing firmware updates

API developer facing codes

Access PSA API developer facing codes on Github

API test suite

A test suite to verify the correct implementation of APIs in your system

Certify

Learn more about PSA Certified, access more resources, and find out how to get started with the certification process.