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Transparently securing transactional data

  • US 7,740,173 B2
  • Filed: 12/17/2007
  • Issued: 06/22/2010
  • Est. Priority Date: 09/07/2004
  • Status: Active Grant
First Claim
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1. A card stripe read head, comprising:

  • a housing;

    a detector with a portion thereof encapsulated within the housing, the detector configured to detect magnetic card data and generate a first signal-representing the card data; and

    an encryption engine encapsulated within the housing and in communicative contact with the detector, the encryption engine configured to encrypt a portion of the card data of the first signal and generate a second signal that includes the encrypted card data, wherein first and second signals have a same data format and wherein the portion of the card data encrypted comprises a subset of a personal account number on a track of the magnetic card and the second signal further comprises an unencrypted second subset of the personal account number.

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