×

Embedding cloud-based functionalities in a communication device

  • US 10,049,353 B2
  • Filed: 08/21/2017
  • Issued: 08/14/2018
  • Est. Priority Date: 08/22/2014
  • Status: Active Grant
First Claim
Patent Images

1. A portable communication device comprising:

  • a processor device;

    a contactless transceiver coupled to the processor device;

    a memory including multiple memory regions and storing a first application and an application agent, wherein the multiple memory regions comprising a first memory region and a second memory region,wherein the application agent receives, from the application executing in the first memory region, a cryptogram key generated by a remote computer, stores the cryptogram key in the second memory region, receives a request to conduct a transaction from the application, generates a transaction cryptogram using the cryptogram key, accesses the contactless transceiver, and transmits the transaction cryptogram to an access device via the contactless transceiver, andwherein the application agent sends a replenishment request for a second cryptogram key to the first application, the replenishment request including transaction log information derived from a transaction log stored in the second memory region, receives the second cryptogram key from the first application when the transaction log information in the replenishment request matches transaction log information at the remote computer, and stores the second cryptogram key in the second memory region.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×