name: PDK-ID
full_form: Private Data Key Identifier
context: A private symmetric key PDK (Private Data Key) is used for end to end protection of one-to-one SDS messages. The PDK and PDK-ID is distributed within the SDS message and is encapsulated in a MIKEY-SAKKE message encrypted to the receiving user identity. It is signed using the source identity's private signing key and the signature is verified at the destination with the source identity. Once the PDK is established between the source and destination, SDS exchanges between this same source and destination may continue to use the same PDK for subsequent MCData communications by simply providing the PDK-ID in every SDS message. Alternatively, a new PDK may be generated and distributed to the destination in every SDS message. Generation and encapsulation of the PDK is as defined in clause 7.4 of 33.179 [3], similar to the PCK.
description: A unique identifier for a Private Data Key (PDK) used for end-to-end protection of one-to-one SDS messages, distributed within the SDS message and encapsulated in a MIKEY-SAKKE message.
explanation: The context explicitly mentions PDK-ID as an identifier for a private symmetric key, indicating its role as a critical network attribute for secure communication. This aligns with the definition of a Parameter.
section_title: 7.5.3.3.1	Key management for one-to-one SDS protection
biotag_Context: O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,B-Service,O,O,B-Parameter,O,B-Parameter,O,O,O,O,B-Service,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,B-Service,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,B-Parameter,O,O,B-Service,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,B-Service,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O
biotag_Description: O,O,O,O,O,B-Parameter,I-Parameter,I-Parameter,O,O,O,O,O,O,O,B-Service,O,O,O,O,B-Service,O,O,O,O,O,O,O