54.5.5.10 Unwrap Operation

The Unwrap operation unwraps the key from a previously created key code. Depending on the state of PUF and the key scope that is included in the key code, the allowed destinations may be limited as described in Context Specification for Key Operations. When an invalid destination is defined (all bits 0, or more than one bit 1), the command is rejected.

Bits 3:0 of the user_context_0 word of the context, as provided during the Wrap or Wrap Generated Random operation, are passed to PUF_KEY_INDEX.