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Method and apparatus for creating a remotely activated secure backup service for mobile handsets

  • US 8,554,176 B2
  • Filed: 09/18/2007
  • Issued: 10/08/2013
  • Est. Priority Date: 09/18/2007
  • Status: Expired due to Fees
First Claim
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1. A method for securing data files on a mobile handset, comprising:

  • receiving an activation command message via a wireless network directing the mobile handset to encrypt the data files;

    obtaining an encryption key upon recognizing the activation command message by;

    receiving a public key in the activation command message; and

    generating a symmetric key and encrypting it using the public key;

    encrypting the data files using the symmetric key to generate an encrypted data file;

    storing the encrypted data files in memory of the mobile handset;

    transmitting the encrypted symmetric key to a server via the cellular telephone network; and

    deleting the symmetric key from a memory of the mobile handset after the data files have been encrypted.

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