发明名称 |
Übertragungsverfahren und -vorrichtung zum kombinierten Multiplexen und Verschlüsseln |
摘要 |
An information transmission system (100) transmits an encrypted information (It) comprised of a plurality of information units (Iu) each hierarchically encrypted and multiplexed to each other is communicated between at least two parties. The information transmission system (100) is constructed by a transmitting unit (110) and a receiving unit (130). The transmitting unit (110) is provided with an information unit generator (111) which produces the information unit (Iu); a scrambler (112) which encrypts the information unit (Iu) to produce an encrypted information unit (Iue), and multiplexer (113) which multiplexes at least one of those information unit (Iu) and said encrypted information unit (Iue) to produce a multiplexed information unit (Im). The receiving unit (130) is provided with a lower layer descrambler (132) which decrypts the encrypted information (It) to produce a multiplexed information unit (Im), demultiplexer (133) which demultiplexes the multiplexed information unit (Im) into any of encrypted information unit (Iue), multiplexed information unit (Iue) and information unit (Iu), and information unit descrambler (134) which decrypts the encrypted information unit (Iue) . <IMAGE> |
申请公布号 |
DE69833821(D1) |
申请公布日期 |
2006.05.11 |
申请号 |
DE1998633821 |
申请日期 |
1998.09.16 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO. |
发明人 |
KATAOKA, MITSUTERU;HARADA, TAKENOSUKE;MACHIDA, KAZUHIRO;MASUDA, ISAO |
分类号 |
H04L9/00;H04K1/00;H04L9/06;H04L9/18;H04L9/32;H04L29/06;H04N7/167 |
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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