Cryptography – Key management
Reexamination Certificate
2006-08-02
2011-11-22
Augustin, Evens J (Department: 3621)
Cryptography
Key management
C726S027000
Reexamination Certificate
active
08064603
ABSTRACT:
When content owned by a source device are played back in a rendering device, a content key is transferred from the source device to the rendering device via a secure session every time playback is carried out. Then, encoded content are decoded and played back to be outputted by using the transferred content key so as to discard the content key after the end of playback.
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Sato Jun
Terauchi Toru
Watanabe Keiko
Augustin Evens J
Holtz Holtz Goodman & Chick PC
Kabushiki Kaisha TOSHIBA
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