User activated authentication system
First Claim
1. A method comprising:
- a first device receiving an activation signal directly or indirectly from a user;
the first device transmitting a first signal to a second device in response to receiving the activation signal;
in response to receiving the first signal, the second device transmitting a second signal to the first device, wherein the second signal comprises a randomly generated number;
the first device encrypting the randomly generated number to generate a first encrypted number;
the first device transmitting a third signal to the second device, wherein the third signal comprises the first encrypted number;
the second device encrypting the randomly generated number to generate a second encrypted number;
the second device comparing the first and second encrypted numbers.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus or method for authenticating a user'"'"'s access to a device such as, for example, a garage. In one embodiment, the method includes a first device receiving an activation signal directly or indirectly from a user. The first device transmits a first signal to a second device in response to receiving the activation signal. The second device is coupled to a motor that opens or closes a door of the garage. In response to receiving the first signal, the second device transmits a second signal to the first device, wherein the second signal includes a randomly generated number. The first device encrypts the randomly generated number received from the second device to generate a first encrypted number. Thereafter the first device transmits a third signal to the second device, wherein the third signal includes the first encrypted number. In addition to sending the randomly generated number to the first device, the second device encrypts the randomly generated number to generate a second encrypted number. The second device compares the first and second encrypted numbers. If the first and second encrypted numbers compare equally, the second device instructs the garage door motor to open or close the garage door.
14 Citations
18 Claims
-
1. A method comprising:
-
a first device receiving an activation signal directly or indirectly from a user;
the first device transmitting a first signal to a second device in response to receiving the activation signal;
in response to receiving the first signal, the second device transmitting a second signal to the first device, wherein the second signal comprises a randomly generated number;
the first device encrypting the randomly generated number to generate a first encrypted number;
the first device transmitting a third signal to the second device, wherein the third signal comprises the first encrypted number;
the second device encrypting the randomly generated number to generate a second encrypted number;
the second device comparing the first and second encrypted numbers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. An apparatus comprising:
a first device, wherein the first device comprises;
a first transceiver for transmitting signals to or receiving signals from a second transceiver;
a first circuit coupled to the first transceiver;
wherein the first transceiver is configured to transmit a first signal to the second transceiver in response to the first device receiving a command directly or indirectly from a user;
wherein the first transceiver is configured to receive a second signal from the second transceiver, wherein the second signal comprises a randomly generated number;
wherein the first circuit is configured to encrypt the randomly generated number to generate a first encrypted number;
wherein the first transceiver is configured to transmit a third signal to the second transceiver, wherein the third signal comprises the first encrypted number. - View Dependent Claims (13, 14, 15, 16, 17)
-
18. A device comprising:
-
a transceiver for transmitting signals to or receiving signals from another transceiver;
a circuit;
a random number generator coupled to the transceiver and the circuit, wherein the random number generator is configured to generate a random number in response to the transceiver receiving a first signal, wherein the first signal comprises a device identification;
a memory for storing a plurality of encryption keys corresponding to a plurality of device identifications, respectively;
wherein the transceiver is configured to transmit a second signal to the other transceiver, wherein the second signal comprises the random number;
wherein the circuit is configured to encrypt the random number to generate a first encrypted number, wherein the circuit encrypts the random number using an encryption key stored in the memory that corresponds to the device identification;
wherein the transceiver is configured to receive a third signal, wherein the third signal comprises a second encrypted number;
wherein the circuit is configured to compare the first and second encrypted numbers.
-
Specification