| 摘要 |
PROBLEM TO BE SOLVED: To develop a communication method that utilizes fingerprint information coded by a feature point, so as to simultaneously satisfy the secrecy of communication contents and the identification of a communication concerned party. SOLUTION: The fingerprint information coded depending on the feature point of both communication concerned parties is given to a key management system (a reliable 3rd party), one of both the communication concerned parties transmits data encrypted by using its own fingerprint information coded by the feature point for a key to the key management system, the key management system decodes the encrypted data by using the fingerprint information of one of the communication concerned parties received in advance for a key, transmits the data encrypted from the decoded data, by using the fingerprint information received from the other of the communication concerned parties for a key to the other communication concerned parties and the other communication concerned parties decodes the encrypted data, using its own information coded on the basis of the feature point for a key in the communication method. |
