Communication system, non-transitory computer-readable medium for terminal, and communication apparatus

A computer program for a terminal including a camera, a wireless interface configured to perform wireless communication in accordance with a predetermined communication protocol of a Wi-Fi specification, a display, and a computer,

• the computer program causing the computer to:
• obtain a character string by decoding a code image in response to the camera reading the code image, the character string including identification information without including a public key of the communication apparatus, the identification information identifying a communication apparatus;
• obtain the public key of the communication apparatus using the identification information included in the obtained character string;
• and
• perform a predetermined process to perform target communication in accordance with the predetermined communication protocol with the communication apparatus through the wireless interface using the obtained public key to establish a wireless connection in accordance with the predetermined communication protocol between a pair of devices.

A communication apparatus, comprising:

• a wireless interface configured to perform wireless communication in accordance with a predetermined communication protocol of a Wi-Fi specification;
• a housing having a seal indicating a code image obtained by coding a character string, the character string including identification information without including a public key of the communication apparatus, the identification information identifying the communication apparatus and being usable by a terminal to obtain the public key;
• and
• a controller configured to perform, in response to the public key being obtained by the terminal, target communication in accordance with the predetermined communication protocol with the terminal through the wireless interface to establish a wireless connection in accordance with the predetermined communication protocol between a pair of devices.

A communication apparatus, comprising:

• a wireless interface configured to perform wireless communication in accordance with a predetermined communication protocol of a Wi-Fi specification;
• an controller configured to:
• cause an output unit to output a code image obtained by coding a character string including identification information without including a public key of the communication apparatus, the identification information identifying the communication apparatus and being usable by a terminal to obtain the public key;
• and
• perform, in response to the public key being obtained by the terminal, target communication in accordance with the predetermined communication protocol with the terminal through the wireless interface to establish a wireless connection in accordance with the predetermined communication protocol between a pair of devices.