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Authentication device and method

  • US 7,882,553 B2
  • Filed: 03/06/2007
  • Issued: 02/01/2011
  • Est. Priority Date: 02/20/2007
  • Status: Active Grant
First Claim
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1. An apparatus for generating intermediate cryptogram data corresponding to a dynamic password for a first cryptographic scheme, the intermediate cryptogram data being suitable for display using a device designed for a second, incompatible cryptographic scheme for generating a password, the apparatus comprising:

  • a communications interface for communicating with a said device; and

    a processor coupled to a memory, the memory storing processor control code to control the processor, when running, to;

    generate a dynamic password according to the first cryptographic scheme; and

    generate intermediate cryptogram data from said dynamic password, the intermediate cryptogram data being suitable for outputting to the said device so that, when the said device processes said intermediate cryptogram data according to the second, incompatible cryptographic scheme to generate a password, the said device outputs said dynamic password generated according to the first cryptographic scheme.

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