Communication device, control method for communication device, and storage medium

Abstract

[Object] To enable a device that is a target for denial of communication to be shared over a network. [Solution] A communication device registers identifying information of a denial target device that is present in a first network and that is a target for denial of communication and notifies another device of the registered identifying information of the denial target device. The communication device constructs a second network different from the first network with the other device.

The invention claimed is:  
     
       1. A communication device comprising:
 a first constructing unit that executes, between the communication device and a first other communication device on each of which a predetermined operation has been performed by a user, a sharing process for sharing a first communication parameter, and constructs a first wireless network for communication using the first communication parameter, wherein the first communication parameter includes at least one of a first network identifier, a first encryption key, and a first authentication key; 
 a determining unit that determines that the first other communication device in the first wireless network is a device with which communication is to be denied; 
 a notifying unit that notifies another device other than the first other communication device in the first wireless network of identifying information of the first other communication device, in a case where the determining unit determines that the first other communication device is a device with which communication is to be denied; 
 a receiving unit configured to receive a confirmation, from the another device, indicating that the another device has received the identifying information of the first other communication device; 
 a second constructing unit that executes, in response to the receiving unit receiving the confirmation, a sharing process for sharing a second communication parameter between the communication device and the another device, which has transmitted the confirmation, without requiring the user to perform the predetermined operation, and constructs a second wireless network for communication using the second communication parameter, wherein the second communication parameter includes at least one of a second network identifier, a second encryption key, and a second authentication key; and 
 a restriction unit that restricts the execution of the sharing process for sharing the second communication parameter between the communication device and the first other communication device even if the user performs the predetermined operation on the communication device and on the first other communication device. 
 
     
     
       2. The communication device according to  claim 1 , wherein the sharing process is a process required for providing or receiving a communication parameter. 
     
     
       3. The communication device according to  claim 1 , wherein the second constructing unit constructs the second wireless network using any of a plurality of network information elements shared in constructing the first wireless network. 
     
     
       4. The communication device according to  claim 3 , further comprising:
 a specifying unit that specifies any of the plurality of network information elements, 
 wherein the second constructing unit constructs the second wireless network using the network information element specified by the specifying unit. 
 
     
     
       5. The communication device according to  claim 1 , further comprising:
 a disconnecting unit that disconnects connection to the first other communication device, in a case where the determining unit determines that the first other communication device is a device with which communication is to be denied. 
 
     
     
       6. The communication device according to  claim 1 , wherein the determining unit determines that the first other communication device is a device with which communication is to be denied, in a case where an anomaly occurs in the first other communication device, wherein the anomaly includes at least one of a security problem, an infection with a computer virus, an interference with a communication band, a failure of communication, or when the first communication apparatus performs an operation opposing a policy. 
     
     
       7. The communication device according to  claim 1 , wherein the first communication parameter and the second communication parameter are parameters necessary for wireless LAN communication conforming to the IEEE 802.11 series. 
     
     
       8. A control method for a communication device, the control method comprising:
 executing, between the communication device and a first other communication device on each of which a predetermined operation has been performed by a user, a sharing process for sharing a first communication parameter, and constructing a first wireless network for communication using the first communication parameter, wherein the first communication parameter includes at least one of a first network identifier, a first encryption key, and a first authentication key; 
 determining that the first other communication device in the first wireless network is a device with which communication is to be denied; 
 notifying another device other than the first other communication device in the first wireless network of identifying information of the first other communication device, in a case where it is determined that the first other communication device is a device with which communication is to be denied; 
 receiving a confirmation, from the another device, indicating that the another device has received the identifying information of the first other communication device; 
 executing, in response to receiving the confirmation, a sharing process for sharing a second communication parameter between the communication device and the another device, which has transmitted the confirmation, without requiring the user to perform the predetermined operation, and constructing a second wireless network for communication using the second communication parameter, wherein the second communication parameter includes at least one of a second network identifier, a second encryption key, and a second authentication key; and 
 restricting the executing of the sharing process for sharing the second communication parameter between the communication device and the first other communication device even if the user performs the predetermined operation on the communication device and on the first other communication device. 
 
     
     
       9. A computer readable storage medium storing a computer program code for causing a computer to execute a control method for a communication device, the control method comprising:
 executing, between the communication device and a first other communication device on each of which a predetermined operation has been performed by a user, a sharing process for sharing a first communication parameter, and constructing a first wireless network for communication using the first communication parameter, wherein the first communication parameter includes at least one of a first network identifier, a first encryption key, and a first authentication key; 
 determining that the first other communication device in the first wireless network is a device with which communication is to be denied; 
 notifying another device other than the first other communication device in the first wireless network of identifying information of the first other communication device, in a case where it is determined that the first other communication device is a device with which communication is to be denied; 
 receiving a confirmation, from the another device, indicating that the another device has received the identifying information of the first other communication device; 
 executing, in response to receiving the confirmation, a sharing process for sharing a second communication parameter between the communication device and the another device, which has transmitted the confirmation, without requiring the user to perform the predetermined operation, and constructing a second wireless network for communication using the second communication parameter, wherein the second communication parameter includes at least one of a second network identifier, a second encryption key, and a second authentication key; and 
 restricting the executing of the sharing process for sharing the second communication parameter between the communication device and the first other communication device even if the user performs the predetermined operation on the communication device and on the first other communication device.