Embedding cloud-based functionalities in a communication device
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United States of America Patent
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Sep 26, 2017
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N/A
app pub date -
Aug 24, 2015
filing date -
Aug 22, 2014
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Abstract
Techniques for enhancing the security of a communication device may include providing an application agent that executes in a trusted execution environment of the communication device, and a transaction application that executes in a normal application execution environment of the communication device. The application agent may receive, from the application, a limited-use key (LUK) generated by a remote computer, and store the LUK in a secure storage of the trusted execution environment. When the application agent receives a request to conduct a transaction from the application executing in the normal execution environment, the application agent may generate a transaction cryptogram using the LUK, and provides the transaction cryptogram to an access device.
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