KR100772372B1 - 방송 콘텐츠의 수신 장치 및 방법 - Google Patents
방송 콘텐츠의 수신 장치 및 방법 Download PDFInfo
- Publication number
- KR100772372B1 KR100772372B1 KR1020040097998A KR20040097998A KR100772372B1 KR 100772372 B1 KR100772372 B1 KR 100772372B1 KR 1020040097998 A KR1020040097998 A KR 1020040097998A KR 20040097998 A KR20040097998 A KR 20040097998A KR 100772372 B1 KR100772372 B1 KR 100772372B1
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- South Korea
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/0825—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/60—Digital content management, e.g. content distribution
- H04L2209/601—Broadcast encryption
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Claims (11)
- 방송 콘텐츠를 수신하는 장치에 있어서,a)콘텐츠 제공자로부터 방송 채널을 통해 수신된 방송 스트림에 기초하여 콘텐츠를 생성하는 수신부;b)소정의 콘텐츠 키를 이용하여 상기 콘텐츠를 암호화하는 콘텐츠 암호화부; 및c)사용자 기기와 링크 메시지를 교환함으로써 상기 사용자 기기와의 안전한(secure) 링크를 생성하고, 상기 콘텐츠 키를 암호화하여, 상기 안전한 링크를 통하여 상기 암호화된 콘텐츠 키를 상기 사용자 기기에게 전송하는 링크 생성부를 포함하며,상기 c)링크 생성부는,상기 사용자 기기의 공개키를 이용하여 상기 수신 장치의 비밀키를 암호화한 후 상기 사용자 기기로 전송하고,상기 수신 장치의 비밀키를 이용하여 상기 콘텐츠 키를 암호화한 후 상기 사용자 기기로 전송하는 것을 특징으로 하는 장치.
- 제 1 항에 있어서, 상기 c)링크 생성부는,상기 사용자 기기로부터의 링크 요청 메시지를 카운트하고, 현재 링크 수를 최대 링크수와 비교함으로써 상기 링크의 회수를 제한하는 것을 특징으로 하는 장치.
- 삭제
- 삭제
- 삭제
- 방송 콘텐츠를 수신하는 방법에 있어서,a)콘텐츠 제공자로부터 방송 채널을 통해 수신된 방송 스트림에 기초하여 콘텐츠를 생성하는 단계;b)소정의 콘텐츠 키를 이용하여 상기 콘텐츠를 암호화하는 콘텐츠 암호화 단계; 및c)사용자 기기와 링크 메시지를 교환함으로써 상기 사용자 기기와의 안전한(secure) 링크를 생성하고, 상기 콘텐츠 키를 암호화하여, 상기 안전한 링크를 통하여 상기 암호화된 콘텐츠 키를 상기 사용자 기기에게 전송하는 링크 생성 단계를 포함하며,c)상기 링크 생성 단계는,상기 사용자 기기의 공개키를 이용하여 상기 수신 장치의 비밀키를 암호화한 후 상기 사용자 기기로 전송하는 단계; 및상기 수신 장치의 비밀키를 이용하여 상기 콘텐츠 키를 암호화한 후 상기 사용자 기기로 전송하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 6 항에 있어서, 상기 c)링크 생성 단계는,상기 사용자 기기로부터의 링크 요청 메시지를 카운트함으로써 현재 링크 수를 생성하는 단계; 및상기 현재 링크 수를 최대 링크수와 비교함으로써 상기 링크의 회수를 제한하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 삭제
- 삭제
- 삭제
- 제 6 항에 기재된 방법을 컴퓨터에서 실행시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/242,076 US20060104442A1 (en) | 2004-11-16 | 2005-10-04 | Method and apparatus for receiving broadcast content |
EP05820471A EP1813050A4 (en) | 2004-11-16 | 2005-11-08 | Method and device for receiving broadcast content |
CN2010102090254A CN101883102A (zh) | 2004-11-16 | 2005-11-08 | 生成链路的方法 |
CN201010209097A CN101860433A (zh) | 2004-11-16 | 2005-11-08 | 用于接收广播内容的方法和设备 |
CA002586215A CA2586215A1 (en) | 2004-11-16 | 2005-11-08 | Method and apparatus for receiving broadcast content |
PCT/KR2005/003766 WO2006054844A1 (en) | 2004-11-16 | 2005-11-08 | Method and apparatus for receiving broadcast content |
JP2007541095A JP2008521275A (ja) | 2004-11-16 | 2005-11-08 | 放送コンテンツの受信装置及び方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US62796704P | 2004-11-16 | 2004-11-16 | |
US60/627,967 | 2004-11-16 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020070005809A Division KR20070017426A (ko) | 2004-11-16 | 2007-01-18 | 링크를 생성하는 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060055262A KR20060055262A (ko) | 2006-05-23 |
KR100772372B1 true KR100772372B1 (ko) | 2007-11-01 |
Family
ID=37151465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040097998A Expired - Lifetime KR100772372B1 (ko) | 2004-11-16 | 2004-11-26 | 방송 콘텐츠의 수신 장치 및 방법 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060104442A1 (ko) |
JP (1) | JP2008521275A (ko) |
KR (1) | KR100772372B1 (ko) |
CN (3) | CN101860433A (ko) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101200572B1 (ko) * | 2007-07-09 | 2012-11-13 | 삼성전자주식회사 | 공개 브로드캐스트 암호화를 이용한 인증 방법 및 컨텐츠재생 방법과 그 장치 |
CN101640840B (zh) * | 2008-08-01 | 2013-03-13 | 上海贝尔阿尔卡特股份有限公司 | 用于基于广播或多播进行安全通信的方法及其装置 |
US9924229B2 (en) * | 2010-11-09 | 2018-03-20 | Sony Network Entertainment International Llc | Employment of multiple second displays to control IPTV content |
EP2605566B1 (en) | 2011-12-12 | 2019-06-12 | Sony Corporation | System for transmitting a data signal in a network, method, mobile transmitting device and network device |
US20130259230A1 (en) * | 2012-03-29 | 2013-10-03 | Broadcom Corporation | Bluetooth Low Energy Privacy |
US9641488B2 (en) | 2014-02-28 | 2017-05-02 | Dropbox, Inc. | Advanced security protocol for broadcasting and synchronizing shared folders over local area network |
US11502826B1 (en) * | 2021-09-21 | 2022-11-15 | Uab 360 It | Stateless system to encrypt and decrypt data |
US11575507B1 (en) | 2021-09-21 | 2023-02-07 | Uab 360 It | Sharing access to data |
US11477025B1 (en) * | 2021-09-22 | 2022-10-18 | Uab 360 It | Managing access to data |
US11646874B2 (en) | 2021-09-23 | 2023-05-09 | Uab 360 It | Organized data storage system |
US11526281B1 (en) | 2021-09-23 | 2022-12-13 | Uab 360 It | Sharing data in an organized storage system |
US11838297B2 (en) | 2022-03-18 | 2023-12-05 | Uab 360 It | Group verification of a transmission source |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09307542A (ja) * | 1996-03-15 | 1997-11-28 | Sony Corp | データ伝送装置とその方法 |
JPH11355265A (ja) * | 1998-06-10 | 1999-12-24 | Matsushita Electric Ind Co Ltd | Avコンテンツ送信方法、avコンテンツ受信方法、avコンテンツ送信装置、avコンテンツ受信装置および媒体 |
CN100373842C (zh) * | 1998-04-01 | 2008-03-05 | 松下电器产业株式会社 | 数据发送和接收方法、数据发送设备以及数据接收设备 |
US6412007B1 (en) * | 1999-01-14 | 2002-06-25 | Cisco Technology, Inc. | Mechanism for authorizing a data communication session between a client and a server |
JP4099281B2 (ja) * | 1999-02-05 | 2008-06-11 | 株式会社東芝 | 受信装置 |
US6550008B1 (en) * | 1999-02-26 | 2003-04-15 | Intel Corporation | Protection of information transmitted over communications channels |
US6915425B2 (en) * | 2000-12-13 | 2005-07-05 | Aladdin Knowledge Systems, Ltd. | System for permitting off-line playback of digital content, and for managing content rights |
JP4512280B2 (ja) * | 2001-02-16 | 2010-07-28 | 日立コンシューマエレクトロニクス株式会社 | ストリームデータ再生装置 |
JP2003030054A (ja) * | 2001-07-18 | 2003-01-31 | Sharp Corp | 記録装置およびプログラム記録媒体 |
EP1304844B1 (en) * | 2001-10-19 | 2007-04-04 | Sony Deutschland GmbH | Content protection and copy management system for a network |
JP2003152696A (ja) * | 2001-11-08 | 2003-05-23 | Nippon Hoso Kyokai <Nhk> | メタデータ送信方法、メタデータ受信方法およびメタデータ送信装置、メタデータ受信装置ならびにメタデータ送信プログラム、メタデータ受信プログラム |
US7277544B1 (en) * | 2002-05-07 | 2007-10-02 | Cinea, Inc. | Local content security system |
JP2004056776A (ja) * | 2002-05-29 | 2004-02-19 | Matsushita Electric Ind Co Ltd | データ送信装置、データ受信装置、データ伝送システム及びデータ伝送方法 |
US7184550B2 (en) * | 2002-08-15 | 2007-02-27 | Intel Corporation | Method and apparatus for simultaneous decryption and re-encryption of publicly distributed content via stream ciphers |
JP4032913B2 (ja) * | 2002-10-11 | 2008-01-16 | 株式会社日立製作所 | 入出力装置 |
JP2004194295A (ja) * | 2002-10-17 | 2004-07-08 | Matsushita Electric Ind Co Ltd | パケット送受信装置 |
US20040117440A1 (en) * | 2002-12-17 | 2004-06-17 | Singer Mitch Fredrick | Media network environment |
US20070124602A1 (en) * | 2003-06-17 | 2007-05-31 | Stephanie Wald | Multimedia storage and access protocol |
-
2004
- 2004-11-26 KR KR1020040097998A patent/KR100772372B1/ko not_active Expired - Lifetime
-
2005
- 2005-10-04 US US11/242,076 patent/US20060104442A1/en not_active Abandoned
- 2005-11-08 CN CN201010209097A patent/CN101860433A/zh active Pending
- 2005-11-08 JP JP2007541095A patent/JP2008521275A/ja active Pending
- 2005-11-08 CN CNA2005800391324A patent/CN101057446A/zh active Pending
- 2005-11-08 CN CN2010102090254A patent/CN101883102A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
JP2008521275A (ja) | 2008-06-19 |
CN101883102A (zh) | 2010-11-10 |
CN101057446A (zh) | 2007-10-17 |
US20060104442A1 (en) | 2006-05-18 |
KR20060055262A (ko) | 2006-05-23 |
CN101860433A (zh) | 2010-10-13 |
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