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Portable device using a smart card to receive and decrypt digital data

  • US 6,779,115 B1
  • Filed: 02/18/2000
  • Issued: 08/17/2004
  • Est. Priority Date: 02/18/2000
  • Status: Expired due to Term
First Claim
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1. An apparatus for the secure download of digital data to a portable handheld device, comprising:

  • a decryption processor, removably coupled to the portable handheld device, the decryption processor including at least one preprogrammed encrypting/decryption key, wherein the decryption processor applies the encrypting/decryption key to digital data received from the portable handheld device and applies the result to the portable handheld device;

    a memory coupled to the portable handheld device, the memory holding the downloaded digital data; and

    a data processor, integral to the portable handheld device and coupled to the memory, wherein, the data processor reads the downloaded digital data from the memory, provides the downloaded digital data to the decryption processor, receives decrypted digital data from the decryption processor and processes the decrypted data to recover the digital data.

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