METHOD AND SYSTEM FOR SETTING SECRET COMMUNICATION

• Main Author: CHO KIHA
• Format: Patent
• Language: English
• Published: 05.10.2006
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

PROBLEM TO BE SOLVED: To provide a method for setting secret communication for constructing the authentication relationship between communication devices without operating key information and utilizing or the like of an authentication server and for setting a common secret key used for the communication between the communication devices. SOLUTION: An initiator 10a transmits an authentication request including its own public key to a responder 10b. Each user of the initiator 10a and the responder 10b confirms contents of the authentication request displayed on the initiator 10a and the responder 10b respectively by using the other communication means. When the contents of the authentication request displayed on the initiator 10a and that of displayed on the responder 10b are matched with each other, the user of the responder 10b approves the authentication. The responder 10b transmits an authentication response including its own public key. The initiator 10a and the responder 10b exchange information for generating a common secret key encrypted by each public key with each other. The initiator 10a and the responder 10b execute the setting of secret communication by exchanging SA parameters used during the secret communication. COPYRIGHT: (C)2007,JPO&INPIT