Patent ID: 9503307
Filing Date: 2016-11-22
CPC Classification: G06F,G06Q,H04L

Claim Text:
1. A method of authenticating a challenged party, the method comprising: receiving at a communication device a request for an authenticity challenge; in response to receiving the request, the communication device sending an authenticity challenge query data string to the challenged party using n authentication information parts, each part sent using one of n different communication channels, wherein the authenticity challenge query data string comprises a question that is answerable by the challenged party if the challenged party is authentic, wherein n is an integer greater than or equal to two, and wherein the question cannot be derived from any one of the n authentication information parts; receiving at the communication device an answer to the question from the challenged party; and responsive to determining using a processor of the communication device that the answer is correct, authenticating the challenged party and allowing the challenged party to participate in or to continue participating in a multi-party dialog.