2.1 Wireless Power Consortium Terminology
The following terminology used in this data sheet is included to aid in understanding items associated with the WPC Qi authentication standard. This section is intended to reflect the information in the WPC standard but, in all cases, the standard takes precedence over this section of the document.
- Power Receiver
- The device that is charged by the power transmitter and provides communication to the power transmitter for the purpose of authentication or to control the power charging of the power receiver.
- Power Transmitter
- The device that is used to communicate with and provide power to the power receiver. The secure storage subsystem resides within the power transmitter.
- Qi
- The designator used by the WPC for the standards associated with wireless charging of mobile devices.
- Revocation Sequential Identifier (RSID)
- The RSID is a unique identifier stored in the WPC device unit certificate that uniquely identifies a given transmitter and can be used to revoke high power or complete operational use of a power transmitter for noncompliance reasons.
- Secure Storage Subsystem (SSS)
- The device used to store the security information used to authenticate a wireless power transmitter. This can be considered a secure element or secure crypto device.
- WPC Manufacturer
- A company or entity licensed by the WPC to produce certified WPC power transmitters. All WPC manufacturers are required to sign a WPC manufacturer agreement.
- WPC Manufacturing CA
- A company licensed by the WPC to produce secure storage subsystems for use in certified WPC power transmitters. Microchip is a licensed manufacturing CA.
- Wireless Power Consortium (WPC)
- The standard body responsible for defining all aspects of wireless charging associated with the Qi standards and for licensing and certifying Qi-certified products. Membership in the WPC is required to produce Qi-compliant power transmitters or receivers. More information on the WPC can be found on the website: www.wirelesspowerconsortium.com/.
- WPC Root Authority
- The WPC Root Authority is the head of the WPC certificate chain. All WPC manufacturing certificates will be signed by the WPC Root Authority.
- WPC Slot
- The WPC authentication specification defines a slot as the element that holds a
WPC certificate chain. There are four possible slots (Slots 0-3) defined by the
WPC authentication specification, but only Slot 0 is required and must hold a
WPC certificate chain. If used, Slot 1 is also reserved for use as a WPC
certificate chain. The format of Slots 2 and 3 is undefined and they are
reserved for optional proprietary extensions.
For the purpose of this document, the term “WPC Slot” will always be used when referring to a WPC certificate chain to distinguish it from the term “slot” used to indicate a data slot in the ECC608-TFLXWPC device.
- WPC Slot Digest
- A 32-byte digest of the entire certificate chain stored in a WPC Slot.