Transaction system and method performed by using peripheral device

A method of performing a transaction via an external device, the method performed by a device and comprising:

• searching for the external device in which a certain transaction application is installed;
• requesting the external device for the transaction;
• and
• receiving transaction completion information that is generated when the external device performs the transaction,
• wherein the requesting comprises providing transaction information to the external device, and
• wherein the transaction information and information that is received by the external device from a peripheral device near the external device are used by the external device to perform the transaction.

A method of performing a transaction, the method performed by a device and comprising:

• obtaining transaction information for the transaction;
• searching for at least one peripheral device near the device;
• and
• performing the transaction with a transaction server by using information received from the at least one peripheral device and the transaction information.

A device comprising:

• a memory configured store at least one program;
• and
• a processor configured to perform a transaction on behalf of an external device by executing the at least one program,
• wherein the at least one program comprises commands for executing:
• receiving transaction information from the external device;
• searching for a peripheral device, based on the transaction information;
• and
• performing the transaction with a transaction server by using information received from the searched peripheral device and the transaction information.