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Credit, security, debit cards and the like with buttons

  • US 10,169,692 B2
  • Filed: 12/19/2008
  • Issued: 01/01/2019
  • Est. Priority Date: 12/24/2007
  • Status: Active Grant
First Claim
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1. A card comprising:

  • a card reader communications device operable to communicate a data block of magnetic stripe data;

    a first button, wherein a first encryption algorithm for said data block is selected based on a first signal from said first button; and

    a second button, wherein a second encryption algorithm for said data block is selected based on a second signal from said second button and said first encryption algorithm is different from said second encryption algorithm.

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