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Accessing confidential data securely using a trusted network of mobile devices

  • US 9,129,283 B1
  • Filed: 01/10/2012
  • Issued: 09/08/2015
  • Est. Priority Date: 01/10/2012
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a keyholding device;

    a managing device, communicatively coupled to the keyholding device, comprising;

    a processor;

    a protected application executing on the processor; and

    a memory storing;

    encrypted data encrypted using an encryption key, anda trusted device list comprising a keyholding device identifier identifying the keyholding device; and

    a data manager for;

    receiving, from the protected application, a request to decrypt the encrypted data sent over a secure wireless communication protocol, wherein the secure wireless communication protocol requires that a distance between the managing device and the keyholding device be within a specified proximity;

    obtaining the keyholding device identifier from the trusted device list;

    sending a connection request to the keyholding device using the keyholding device identifier;

    creating, based on the distance, an established connection in response to determining that the keyholding device has accepted the connection request;

    requesting, via the established connection, the encryption key from a keyholding process executing on the keyholding device;

    obtaining the encryption key from the keyholding process on the keyholding device;

    decrypting the encrypted data using the encryption key to obtain decrypted data; and

    sending the decrypted data to the protected application.

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