A transmission apparatus that transmits a digital work via a network

申请公布号：: EP1605459(A2)
申请号：: EP20050020246
申请日期：: 2002.07.09
申请公布日期：: 2005.12.14
申请人：: PANASONIC CORPORATION
发明人：: HARADA, SHUNJI;FUTA, YUICHI;MIYAZAKI, MASAYA;SEKIBE, TSUTOMU;NAKANISHI, YOSHIAKI;MATSUZAKI, NATSUME
分类号：: G09C1/00;G11B20/00;G06F1/00;G06F21/10;H04L9/08;(IPC1-7):G11B20/00
主分类号：: G09C1/00
摘要：: <p>A transmission apparatus that transmits a digital work via a network, the transmitted digital work being written to a portable recording medium apparatus via a reception apparatus, the transmission apparatus comprising: a storage unit, a distribution encryption key, an encryption unit, a transmission unit operable to transmit the encrypted content and the first encrypted content key via the network, the encryption unit further encrypts the original usage condition key using the distribution encryption key, to generate a first encrypted usage condition key, and encrypts the usage condition information using the original usage condition key, to generate first encrypted usage condition information, and the transmission unit further transmits the first encrypted usage condition key and the first encrypted usage condition information via the network.</p>