Patent ID: 9585015
Date: 2017-02-28
CPC Classifications: H04L,H04W

Claim:
1. A method of authentication of collaborative mobile devices, the method comprising: receiving, by a first mobile device of a user, a challenge message, wherein the challenge message is signed by a private key of an authenticator device; maintaining, by the first mobile device, a public key for the authenticator device; validating, by the first mobile device, a signature of the authenticator device using the public key for the authenticator device; in response to validating the signature of the authenticator device, deriving a challenge response message based on the challenge message; signing, by the first mobile device and using the private key, the challenge response message to produce a signed challenge response message; conveying, by the first mobile device to the authenticator device, a first mobile device authentication result comprises conveying the signed challenge response message; conveying, by the first mobile device to a second mobile device of the user, a first short-range wireless signal comprising the challenge message; receiving, from the second mobile device, a second short-range wireless signal comprising a second mobile device authentication result, wherein the second mobile device authentication result is based on the challenge message; and authenticating one or more of the first mobile device, the second mobile device, and the user by conveying, by the first mobile device to the authenticator device, the first mobile device authentication result and the second mobile device authentication result.