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Invention Publication
CN101002422A 记录装置、内容密钥处理装置、记录介质以及记录方法 失效 - 权利终止

记录装置、内容密钥处理装置、记录介质以及记录方法
Abstract:
一种记录装置，具有内容加密部和密钥加密部，该内容加密部将用内容密钥加密的内容写入记录介质，该密钥加密部对上述内容密钥进行加密后写入上述记录介质。内容密钥处理装置具有密钥解密部和密钥加密部，该密钥解密部对加密后记录于记录介质中的内容密钥进行解密，该密钥加密部采用规定的信息对解密后的内容密钥进行再加密，写入上述记录介质。
Abstract(English):

A recording device has a content encryption section for writing contents that have been encrypted by a content key and has a key encryption section for encrypting the content key and writing the result in the recording medium. A content key processing device has key decryption section for decrypting a content key that has been encrypted and recorded in a recording medium and a key encryption section for re-encrypting the decrypted content key by using predetermined information and writing the result in the recording medium.

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