Effortless authentication for desktop computers using wrist wearable tokens
AssigneeTrustees of Dartmouth College
InventorsShrirang MARE, David KOTZ, Ronald PETERSON
Life of this patent
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Abstract
A system and method for authenticating users of a digital device includes an authentication device attached to an authorized user. The authentication device includes one or more motion sensors and acts as a user identity token. To authenticate with a digital device, the user performs one or more interactions with the digital device using the hand associated with the authentication device. The digital device correlates the inputs received due to the interactions with the user's hand and/or wrist movement, as measured by the authentication device. Access to the digital device is allowed if the inputs and movements are correlated.
Claims24
A method for authenticating an authorized user to a locked digital device, said authorized user wearing an authentication device comprising at least one accelerometer, a digital radio and a processor, the method comprising:
- detecting an intent action input from an input apparatus of the digital device;
- sending a query to an authentication device in radio proximity of the digital device, said query comprising start and end times of the intent action;
- receiving data representing authentication device motion between the start and end times in the query from the authentication device;
- correlating the data representing authentication device motion with the detected intent action input and sending a correlation message to the authentication device;
- and
- receiving an authentication response from the authentication device and unlocking the digital device based on the authentication response.
A system comprising:
- at least one authentication device adapted to be attached to an arm or wrist of an authorized user, the authentication device comprising:
- at least one accelerometer;
- a digital radio;
- and
- an authentication device processor configured to provide motion data detected by the at least one accelerometer in response to a query message received by the digital radio;
- and
- at least one digital device comprising at least one digital radio adapted to communicate with the at least one digital radio of the authentication device, at least one input apparatus and at least one digital device processor configured to:
- detect an intent action performed using the at least one input apparatus;
- send a query to the authentication device, the query comprising an identification and time span of the intent action;
- receive motion data from the authentication device;
- and
- correlate the intent action and the motion data, the motion data corresponding to the timespan of the query, and to allow access to the digital device if correlation succeeds.
An authentication device for authenticating an authorized user to a locked digital device, said authentication device adapted to be worn by the authorized user and comprising at least one accelerometer, a digital radio and a processor, the processor adapted to execute instructions stored in a non-transitory computer readable medium to perform a method comprising:
- receiving a query from the locked digital device, said query comprising start and end times of an intent action performed using an input apparatus of the locked digital device with an arm associated with the authentication device;
- sending data representing motion of the authentication device between the start and end times in the query to the digital device for correlation with data generated from the input apparatus;
- receiving a response from the digital device:
- if the response is a success message (Ms), returning an okay-to-authenticate message (Ma);
- if the response if a failure message (Mf) or a retry message (Mr), alerting the authorized user to retry the intent action.
Dependencies are inferred from the claim text.