Systems, devices, and methods for authentication in an analyte monitoring environment

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.