发明名称 |
Enciphering apparatus and method, deciphering apparatus and method as well as information processing apparatus and method |
摘要 |
The invention provides an enciphering apparatus and method, a deciphering apparatus and method and an information processing apparatus and method by which illegal copying can be prevented with certainty. Data enciphered by a 1394 interface of a DVD player is transmitted to a personal computer and a magneto-optical disk apparatus through a 1394 bus. In the magneto-optical disk apparatus with which a change to a function is open to a user, the received data is deciphered by a 1394 interface. In contrast, in the personal computer with which a change to a function is open to a user, the enciphered data is deciphered using a time variable key by a 1394 interface, and a result of the decipherment is further deciphered using a session key by an application section.
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申请公布号 |
US8170206(B2) |
申请公布日期 |
2012.05.01 |
申请号 |
US20100817320 |
申请日期 |
2010.06.17 |
申请人 |
ISHIGURO RYUJI;OSAWA YOSHITOMO;OSAKABE YOSHIO;SATO MAKOTO;SHIMA HISATO;ASANO TOMOYUKI;SONY CORPORATION |
发明人 |
ISHIGURO RYUJI;OSAWA YOSHITOMO;OSAKABE YOSHIO;SATO MAKOTO;SHIMA HISATO;ASANO TOMOYUKI |
分类号 |
H04L9/00;H04L9/08;G06F1/00;G06F21/00;G09C1/00;G11B20/00;H04L9/32 |
主分类号 |
H04L9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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