A method for wireless communication of analyte data by an analyte sensor system comprising a continuous analyte sensor configured to measure analyte values in a host, wherein the continuous analyte sensor is a continuous glucose sensor, a transceiver configured to transmit and receive wireless signals, and a processor operatively coupled to the continuous analyte sensor and the transceiver, the method comprising: measuring analyte values in a host using the continuous analyte sensor of the analyte sensor system; and causing by the processor the analyte sensor system to: establish during a first interval a first connection between the analyte sensor system and a display device; exchange during the first connection information related to authentication between the analyte sensor system and the display device, wherein the information related to authentication comprises an application key; make a determination regarding whether authentication was performed during the first interval; and during a second interval, if the determination indicates that the authentication was performed during the first interval: use the application key to encrypt an analyte value that is a glucose value measured by the continuous analyte sensor and generate the encrypted analyte value; establish a second connection between the analyte sensor system and the display device for transmitting an encrypted analyte value by the analyte sensor system; bypass the exchanging of information related to authentication performed during the first connection; and transmit the encrypted analyte value to the display device. measuring analyte values in a host using the continuous analyte sensor of the analyte sensor system; and causing by the processor the analyte sensor system to: establish during a first interval a first connection between the analyte sensor system and a display device; exchange during the first connection information related to authentication between the analyte sensor system and the display device, wherein the information related to authentication comprises an application key; make a determination regarding whether authentication was performed during the first interval; and during a second interval, if the determination indicates that the authentication was performed during the first interval: use the application key to encrypt an analyte value that is a glucose value measured by the continuous analyte sensor and generate the encrypted analyte value; establish a second connection between the analyte sensor system and the display device for transmitting an encrypted analyte value by the analyte sensor system; bypass the exchanging of information related to authentication performed during the first connection; and transmit the encrypted analyte value to the display device. establish during a first interval a first connection between the analyte sensor system and a display device; exchange during the first connection information related to authentication between the analyte sensor system and the display device, wherein the information related to authentication comprises an application key; make a determination regarding whether authentication was performed during the first interval; and during a second interval, if the determination indicates that the authentication was performed during the first interval: use the application key to encrypt an analyte value that is a glucose value measured by the continuous analyte sensor and generate the encrypted analyte value; establish a second connection between the analyte sensor system and the display device for transmitting an encrypted analyte value by the analyte sensor system; bypass the exchanging of information related to authentication performed during the first connection; and transmit the encrypted analyte value to the display device. use the application key to encrypt an analyte value that is a glucose value measured by the continuous analyte sensor and generate the encrypted analyte value; establish a second connection between the analyte sensor system and the display device for transmitting an encrypted analyte value by the analyte sensor system; bypass the exchanging of information related to authentication performed during the first connection; and transmit the encrypted analyte value to the display device.