# US 11,122,043 B2 · Systems, devices, and methods for authentication in an analyte monitoring environment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,122,043 B2 - Document ID: US11122043B2 - Status: Granted - Kind: B2 - Application number: 16/150,769 - Filed: 2018-10-03 - Published: 2019-06-20 - Granted: 2021-09-14 - Earliest claimed: 2013-12-27 - Assignees: Abbott Diabetes Care Inc. - Applicants: Abbott Diabetes Care Inc. - Inventors: Michael R. Love; Mark Sloan; Glenn Berman; Nathan Crouther; Gil Porat - Web page: https://patentgrep.com/patent/US11122043B2 ## CPC - H04L 63/10: {for controlling access to devices or network resources} - A61B 5/0004: {characterised by the type of physiological signal transmitted} - A61B 5/002: {Monitoring the patient using a local or closed circuit, e.g. in a room or building (A61B5/0017 takes precedence)} - A61B 5/1451: {for interstitial fluid} - A61B 5/14532: {for measuring glucose, e.g. by tissue impedance measurement} - A61B 5/14865: {invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors} - A61B 5/1495: Calibrating or testing of in-vivo probes - A61B 5/7221: {Determining signal validity, reliability or quality (preventing, reducing or removing noise induced by motion artefacts A61B5/7207; noise originating from a therapeutic or surgical apparatus A61B5/7217)} - A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)} - A61B 5/7495: {using a reader or scanner device, e.g. barcode scanner} - G06F 7/58: Random or pseudo-random number generators - H04L 63/0428: {wherein the data content is protected, e.g. by encrypting or encapsulating the payload} - H04L 63/06: {for supporting key management in a packet data network (cryptographic mechanisms or cryptographic arrangements for key management H04L9/08)} - H04W 4/02: Services making use of location information - H04W 4/029: Location-based management or tracking services - H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication - H04W 12/06: Authentication - A61B 2560/0266: for monitoring or limiting apparatus function - H04W 12/71: Hardware identity - H04W 12/77: Graphical identity - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Systems, devices, and methods are provided that allow the authentication of devices within analyte monitoring systems. The analyte monitoring systems can be in vivo systems and can include a sensor control device with a sensor and accompanying circuitry, as well as a reader device for communicating with the sensor control device. The analyte monitoring systems can interface with a trusted computer system located at a remote site. Numerous techniques of authentication are disclosed that can enable the detection of counterfeit components, such as a counterfeit sensor control device. ## Claims ### Claim 1 A method of authentication in an in vivo analyte monitoring system, the method comprising: retrieving a private key, by a reader device, from product packaging comprising a readable or scannable element representative of the private key, wherein the analyte monitoring system includes a sensor control device comprising a sensor and analyte monitoring circuitry, wherein the sensor is adapted to be inserted into the body of a user, and wherein the product packaging is external to the sensor control device; attempting to authenticate the private key using a public key stored within the reader device; if the reader device determines that the private key is authentic and if the sensor has been inserted into the body of the user, then: receiving, with the reader device, information indicative of an analyte level of the user from the sensor control device; and displaying the information indicative of the analyte level on a display of the reader device; and if the reader device determines that the private key is not authentic, then preventing operation of the reader device with the sensor control device. ### Claim 2 (depends on 1) The method of claim 1, further comprising, in response to determining that the private key is not authentic, displaying a message on the display of the reader device indicating that the sensor control device is not authorized for use. ### Claim 3 (depends on 1) The method of claim 1, wherein the readable or scannable element is a barcode, wherein retrieving the private key by the reader device comprises scanning the barcode on the product packaging with an optical scanner of the reader device, and wherein the barcode is representative of the private key. ### Claim 4 (depends on 3) The method of claim 3, wherein the barcode is a QR code. ### Claim 5 (depends on 1) The method of claim 1, wherein the readable or scannable element is an radio frequency identification (RFID) label, wherein retrieving the private key by the reader device comprises scanning the product packaging with an near field communication (NFC) component of the reader device, and wherein the RFID label is configured to provide information representative of the private key in response to an NFC scan. ### Claim 6 (depends on 1) The method of claim 1, wherein the readable or scannable element comprises a printed indicia representative of the private key, and wherein the method further comprises prompting the user to manually input the printed indicia representative of the private key into the reader device. ### Claim 7 (depends on 1) The method of claim 1, wherein the reader device is a smart phone, a tablet, a smart glass, or a smart glasses. ### Claim 8 (depends on 1) The method of claim 1, wherein the product packaging is a container for the sensor control device. ### Claim 9 (depends on 1) The method of claim 1, wherein the product packaging is a container for an inserter configured to place the sensor control device on a user's body such that at least a portion of the sensor is in contact with a body fluid of the user. ### Claim 10 (depends on 1) The method of claim 1, further comprising communicating, by the reader device, with the sensor control device over a local wireless communication path using a near field communication (NFC) protocol. ### Claim 11 (depends on 1) The method of claim 1, further comprising communicating, by the reader device, with the sensor control device over a local wireless communication path using a radio frequency identification (RFID) protocol. ### Claim 12 (depends on 1) The method of claim 1, further comprising communicating, by the reader device, with the sensor control device over a wireless communication path according to a wireless communication protocol. ### Claim 13 (depends on 1) The method of claim 1, wherein the reader device comprises location determining hardware configured to determine a current location of the reader device, the method further comprising: determining a current location of the reader device; retrieving an identifier from the product packaging; sending the current location of the reader device and the retrieved identifier to a trusted computer system; and determining, by the trusted computer system, whether the reader device is authorized to operate with the sensor control device in the current location. ### Claim 14 (depends on 13) The method of claim 13, the method further comprising terminating operation between the reader device and the sensor control device in response to a determination that the reader device is not authorized to operate with the sensor control device in the current location. ### Claim 15 (depends on 14) The method of claim 14, further comprising displaying a message on a display of the reader device indicating that the sensor control device is not authorized for use in the current location. ### Claim 16 (depends on 13) The method of claim 13, wherein the identifier comprises a serial number of the sensor control device.