US 11,706,620 B2
Communication device and non-transitory computer-readable medium storing computer-readable instructions for communication device
Satoshi Suzuki, Nagoya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Sep. 25, 2020, as Appl. No. 17/32,532.
Claims priority of application No. 2019-177989 (JP), filed on Sep. 27, 2019.
Prior Publication US 2021/0099872 A1, Apr. 1, 2021
Int. Cl. H04W 12/06 (2021.01); H04W 12/037 (2021.01); H04W 12/0471 (2021.01); H04W 12/50 (2021.01)
CPC H04W 12/068 (2021.01) [H04W 12/037 (2021.01); H04W 12/0471 (2021.01); H04W 12/50 (2021.01)] 17 Claims
OG exemplary drawing
 
1. A communication device comprising:
a processor;
an output unit;
a wireless interface; and
a memory storing computer-readable instructions,
wherein the computer-readable instructions, when executed by the processor, cause the communication device to:
accept an input of a password for authenticating a user of the communication device in a case where second connection information is stored in the memory, the second connection information being information for establishing a second wireless connection via the wireless interface between the communication device and a third external device;
in a case where the second connection information is stored in the memory and authentication using the inputted password is successful, cause the output unit to output specific information obtained by using a public key, the public key being obtained by a first external device in response to the specific information being outputted, wherein in a case where the authentication using the inputted password fails, the specific information is not outputted,
wherein the specific information is outputted without accepting the input of the password in a case where the second connection information is not stored in the memory;
after the specific information has been outputted, receive an authentication request in which the public key is used from the first external device via the wireless interface;
in a case where the authentication request is received from the first external device, send an authentication response to the first external device via the wireless interface;
after the authentication response has been sent to the first external device, receive first connection information from the first external device via the wireless interface, the first connection information being for establishing a first wireless connection via the wireless interface between the communication device and a second external device, the second external device is a parent station device that is to operate as a parent station of a wireless network, the second external device being different from the first external device; and
in a case where the first connection information is received from the first external device, establish the first wireless connection via the wireless interface between the communication device and the second external device by using the first connection information,
wherein the communication device participates in the wireless network by establishing the first wireless connection.