SECRECY DATA DISTRIBUTION SYSTEM AND METHOD

摘要

PROBLEM TO BE SOLVED: To realize distribution of secret data while security of the data is ensured by utilizing the Internet. SOLUTION: The system is provided with a distribution section 10 consisting of an encoder means 11 that generates distribution data by imbedding secret data and a decoding password in multimedia data by means of an electronic watermark technology in a state of the resulting data that cannot be perceived by people and of an Internet communication means 12 that distributes the distribution data, with a reception section 20 consisting of an Internet communication means 22 that received the distribution data and of a decoder means 21 or the like that extracts the secret data from the distribution data only when a person is identified to be a recipient itself with the decoding password served by the recipient.