CONTENT TRANSMISSION SERVER AND CONTENT TRANSMISSION METHOD

摘要

A content transmission server which records encrypted streaming data of a predetermined unit to which time information is added and transmits the encoded streaming data to a client, includes: a decryption section; a local encryption section; a storage section; and a transmission section. The decryption section is configured to decrypt the encrypted streaming data of the predetermined unit to which the time information is added. The local encryption section is configured to locally encrypt the streaming data decrypted by the decryption section. The storage section is configured to store the streaming data locally encrypted by the local encryption section. The transmission section is configured to transmit the encrypted streaming data to the client.