Electronic devices and method for performing authentication between electronic devices

An electronic device, comprising:

• a message creation unit for creating an authentication message including hardware information and security level information for mutual authentication with an additional electronic device;
• a communication unit for sending the authentication message to the additional electronic device and receiving an authentication message of the additional electronic device and information about a mutual authentication algorithm selected by the additional electronic device from the additional electronic device;
• an authentication algorithm selection unit for selecting an authentication algorithm for mutual authentication with the additional electronic device based on hardware information and security level information of the additional electronic device, which are included in a message of the additional electronic device;
• and
• an authentication processing unit for performing a mutual authentication process by comparing the selected authentication algorithm with the information about the mutual authentication algorithm received from the additional electronic device.

A method for mutual authentication between electronic devices, comprising:

• creating, by a first electronic device, a first authentication message including first hardware information and first security level information for mutual authentication and sending, by the first electronic device, the first authentication message to a second electronic device;
• creating, by the second electronic device, a second authentication message including second hardware information and second security level information for mutual authentication and sending, by the second electronic device, the second authentication message to the first electronic device;
• selecting, by the first electronic device, a first authentication algorithm for mutual authentication with the second electronic device based on the second hardware information and the second security level information;
• selecting, by the second electronic device, a second authentication algorithm for mutual authentication with the first electronic device based on the first hardware information and the first security level information;
• sending, by the first electronic device, information about the selected first authentication algorithm to the second electronic device;
• and
• performing, by the second electronic device, a mutual authentication process by comparing the information about the first authentication algorithm with information about the selected second authentication algorithm.