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EMBEDDING CLOUD-BASED FUNCTIONALITIES IN A COMMUNICATION DEVICE

  • US 20170364903A1
  • Filed: 08/21/2017
  • Published: 12/21/2017
  • Est. Priority Date: 08/22/2014
  • Status: Active Grant
First Claim
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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 an application and an application agent,wherein the application agent receives, from the application, a cryptogram key generated by a remote computer, stores the cryptogram key, 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 application, the replenishment request including transaction log information derived from a transaction log, receives the second cryptogram key from the application when the transaction log information in the replenishment request matches transaction log information at the remote computer, and stores the second cryptogram key.

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