Patent ID: 9529992
Filing Date: 2016-12-27
CPC Classification: G06F,G06Q,H04L

Claim Text:
1. A method of conducting a multi-factor authentication, the method comprising: caching a knowledge factor in a memory of a token, the token having an identifying characteristic representing a possession factor to satisfy possession factor authentication on a security system, wherein the knowledge factor is different from the identifying characteristic representing the possession factor, wherein the token comprises two sub-tokens including a first sub-token with an attachment mechanism to attach to the user's body and a second sub-token unattached to the user's body to enable demonstration of possession and knowledge of the possession factor and the knowledge factor, respectively, wherein each component of the token, including a controller and the memory, is in the first sub-token or the second sub-token; monitoring user custody status of the token, said monitoring comprising confirming a continuous user custody by monitoring continual proximity between the first sub-token and the second sub-token via a sensor; in response to an authentication request during a period of continuous user custody determined based on the monitoring of the user custody status, presenting the identifying characteristic of the token to demonstrate possession of the possession factor to the security system; in response to the authentication request during the period of continuous user custody determined based on the monitoring of the user custody status, retrieving the knowledge factor from the memory to demonstrate knowledge of the knowledge factor to the security system; and in response to detecting a break in the continuous user custody, clearing the knowledge factor from the memory.