Overview
IEC 63563-9:2025 - Qi Specification version 2.0: Part 9: Authentication Protocol defines the architecture and application‑level messaging used by a Power Receiver to authenticate a Power Transmitter Product. The goal is to confirm that the transmitter is both Qi certified and produced by a registered manufacturer. Published by IEC and based on the Wireless Power Consortium’s Qi v2.0 Authentication Protocol, this standard specifies certificate handling, message exchanges, timing, and support for revocation and caching.
Key topics and technical requirements
- Authentication architecture: Defines roles, message flows and state machines for receiver–transmitter authentication.
- Certificates and private keys: Requirements for X.509-style certificate chains, certificate slots, issuer/manufacturer certificates, and secure handling of private keys.
- Certificate chain and digest operations: Procedures for requesting and validating certificate digests and full certificate chains.
- Authentication protocol messages: Application‑level message formats (requests, responses, headers) used to perform digest queries, certificate reads, and cryptographic challenges.
- Authentication challenge: Mechanisms for proving possession of private keys and binding certificates to devices via challenge/response exchanges.
- Timing and performance: Specified timing requirements for Power Receiver and Power Transmitter implementations to ensure interoperable authentication flows.
- Revocation and caching: Support for certificate revocation checks, caching strategies, and associated flows (e.g., caching with revocation).
- Cryptographic guidance and examples: Informative examples covering certificate basics, dummy CA/product certificates, and example authentication sequences.
- Compliance language: Mandatory (“shall”) vs. recommended/optional provisions per ISO/IEC directives.
Practical applications and who uses this standard
- Device and accessory manufacturers (wireless chargers, charging pads) implement the protocol to achieve and demonstrate Qi certification and to prevent counterfeit or non‑certified transmitters.
- Chipset and firmware developers integrate authentication messaging, certificate validation, and cryptographic challenge/response logic.
- Security architects and compliance engineers use the standard to design secure key storage and certificate lifecycle processes.
- Test laboratories and certification bodies use the specification to validate conformance to Qi v2.0 authentication requirements.
- Ecosystem integrators and platform providers rely on the protocol to maintain a trusted wireless power ecosystem and protect user devices.
Related standards and references
- Other parts of the Qi Specification (v2.0) series: Communications Protocol, Power Delivery, Foreign Object Detection, NFC Tag Protection, etc.
- References and implementation details are available from the IEC webstore and the Wireless Power Consortium (WPC).
For implementation or certification work, consult the full IEC 63563-9:2025 text and associated Qi Specification documents for normative details, sample certificates, and cryptographic examples.