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Identity challenges

  • US 10,200,365 B2
  • Filed: 08/11/2016
  • Issued: 02/05/2019
  • Est. Priority Date: 10/13/2005
  • Status: Expired due to Fees
First Claim
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1. A method of authentication, comprising:

  • receiving, at an authentication server, a signal associated with a device, the signal representing a response to an identity challenge issued between parties to an electronic transaction;

    retrieving, by the authentication server, a textual representation of the signal;

    querying, by the authentication server, an electronic database for an entry that stores the textual representation of a communication previously exchanged between the parties, the electronic database having entries that store textual representations of communications previously exchanged between the parties;

    determining, by the authentication server, that the textual representation of the signal satisfies at least a portion of the entry that stores the textual representation of the communication previously exchanged between the parties; and

    in response to the determining that the textual representation of the signal satisfies at least the portion of the entry, sending, from the authentication server, an authentication message to the device, the authentication message confirming an identity claimed by one of the parties to the electronic transaction.

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