Patent ID: 11963001
Assignee: ASSA ABLOY AB
Field: Control (Instruments)
Classification: CPC G  H | IPC G  H

Claim 13:
14. A non-transitory computer-readable storage medium comprising instructions, that when executed by one or more processors, cause the one or more processors to:
store a decryption key at a wireless communication device positioned at or near an outer perimeter; and
transmit the decryption key from the wireless communication device to a mobile communication device within communication proximity of the wireless communication device, the decryption key permitting the mobile communication device to decrypt an encrypted data object issued to the mobile communication device to obtain an unencrypted access control token, ACT, or a credential derived from the ACT, enabling the mobile communication device to present the ACT or the credential derived from the ACT to a reader positioned at or near an inner perimeter contained by the outer perimeter, the reader configured to assess a validity of the ACT or the credential derived from the ACT based on the presentation of the ACT or the credential derived from the ACT by the mobile communication device.