专利内容由知识产权出版社提供
专利名称：Digital content protection system发明人：Makoto Tatebayashi,Yutaka
Nakamura,Shunji Harada,Masayuki Kozuka
申请号：US09419240申请日：19991015公开号：US06859535B1公开日：20050222
专利附图：
摘要：The media inherent key storing unit prestores an inherent key Ki, the conversionunit generates an encrypted inherent key Ji from the inherent key read from the mediainherent key storing unit , the random number generating unit generates a random
number R, the encryption unit generates an encrypted random number S, the decryptionunit generates a random number R′from the encrypted random number R, and themutual authentication control unit compares the random number R′with the randomnumber Rand, if the random number R′matches the random number R, judges that thememory card is an authorized device. If the memory card and the memory card writerhave successfully authenticated each other, the memory card writer encrypts a contentusing a decrypted inherent key. If the memory card and the memory card reader havesuccessfully authenticated each other, the memory card reader decrypts an encryptedcontent using the decrypted inherent key.
申请人：Makoto Tatebayashi,Yutaka Nakamura,Shunji Harada,Masayuki Kozuka
地址：Takarazuka JP,Kyoto JP,Osaka JP,Arcadia CA US
国籍：JP,JP,JP,US
更多信息请下载全文后查看
