CA2405901A1 - Systeme de chiffrement partiel visant les paquets critiques - Google Patents

Systeme de chiffrement partiel visant les paquets critiques Download PDF

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Publication number
CA2405901A1
CA2405901A1 CA002405901A CA2405901A CA2405901A1 CA 2405901 A1 CA2405901 A1 CA 2405901A1 CA 002405901 A CA002405901 A CA 002405901A CA 2405901 A CA2405901 A CA 2405901A CA 2405901 A1 CA2405901 A1 CA 2405901A1
Authority
CA
Canada
Prior art keywords
packets
encrypted
payload
packet type
television program
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002405901A
Other languages
English (en)
Other versions
CA2405901C (fr
Inventor
Brant L. Candelore
Robert Allan Unger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Electronics Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/038,217 external-priority patent/US7336787B2/en
Application filed by Individual filed Critical Individual
Priority to KR1020087030265A priority Critical patent/KR100993456B1/ko
Priority to JP2003561246A priority patent/JP4448693B2/ja
Priority to CN028284518A priority patent/CN1623328B/zh
Priority to KR1020097021973A priority patent/KR100988435B1/ko
Priority to PCT/US2002/040050 priority patent/WO2003061289A1/fr
Priority to MXPA04006249A priority patent/MXPA04006249A/es
Priority to CN201010194188XA priority patent/CN101902555B/zh
Priority to EP11158583.2A priority patent/EP2352291B1/fr
Priority to KR1020047010457A priority patent/KR100924053B1/ko
Priority to EP02795874A priority patent/EP1464174B1/fr
Priority to AU2002360604A priority patent/AU2002360604A1/en
Priority to EP11158587.3A priority patent/EP2346246B1/fr
Priority to EP11158585.7A priority patent/EP2346245B1/fr
Publication of CA2405901A1 publication Critical patent/CA2405901A1/fr
Publication of CA2405901C publication Critical patent/CA2405901C/fr
Application granted granted Critical
Priority to HK11102613.0A priority patent/HK1148629B/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
    • H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
CA2405901A 2001-10-26 2002-10-01 Systeme de chiffrement partiel visant les paquets critiques Expired - Lifetime CA2405901C (fr)

Priority Applications (14)

Application Number Priority Date Filing Date Title
KR1020047010457A KR100924053B1 (ko) 2002-01-02 2002-12-13 크리티컬 패킷의 부분적 암호화
EP02795874A EP1464174B1 (fr) 2002-01-02 2002-12-13 Cryptage partiel de paquets critiques
CN028284518A CN1623328B (zh) 2002-01-02 2002-12-13 关键分组部分加密和解密的方法
KR1020097021973A KR100988435B1 (ko) 2002-01-02 2002-12-13 신호를 암호 해독하기 위한 장치 및 방법
PCT/US2002/040050 WO2003061289A1 (fr) 2002-01-02 2002-12-13 Cryptage partiel de paquets critiques
MXPA04006249A MXPA04006249A (es) 2002-01-02 2002-12-13 Encripcion parcial de paquetes criticos.
CN201010194188XA CN101902555B (zh) 2002-01-02 2002-12-13 关键分组部分加密
EP11158583.2A EP2352291B1 (fr) 2002-01-02 2002-12-13 Cryptage partiel de paquets critiques
KR1020087030265A KR100993456B1 (ko) 2002-01-02 2002-12-13 패킷의 부분적 복제, 암호화 및 암호 해독을 이루기 위한 장치 및 방법, 컴퓨터 판독 가능 저장 매체
JP2003561246A JP4448693B2 (ja) 2002-01-02 2002-12-13 重要なパケットの部分暗号化
AU2002360604A AU2002360604A1 (en) 2002-01-02 2002-12-13 Critical packet partial encryption
EP11158587.3A EP2346246B1 (fr) 2002-01-02 2002-12-13 Cryptage partiel de paquets critiques
EP11158585.7A EP2346245B1 (fr) 2002-01-02 2002-12-13 Cryptage partiel de paquets critiques
HK11102613.0A HK1148629B (en) 2002-01-02 2011-03-15 Critical packet partial encryption

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US34371001P 2001-10-26 2001-10-26
US60/343,710 2001-10-26
US10/038,217 2002-01-02
US10/038,217 US7336787B2 (en) 2001-06-06 2002-01-02 Critical packet partial encryption

Publications (2)

Publication Number Publication Date
CA2405901A1 true CA2405901A1 (fr) 2003-04-26
CA2405901C CA2405901C (fr) 2010-03-30

Family

ID=26714971

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2405901A Expired - Lifetime CA2405901C (fr) 2001-10-26 2002-10-01 Systeme de chiffrement partiel visant les paquets critiques

Country Status (1)

Country Link
CA (1) CA2405901C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006040708A3 (fr) * 2004-10-14 2006-07-13 Koninkl Philips Electronics Nv Procede et dispositif de cryptage de flux de donnees

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006040708A3 (fr) * 2004-10-14 2006-07-13 Koninkl Philips Electronics Nv Procede et dispositif de cryptage de flux de donnees

Also Published As

Publication number Publication date
CA2405901C (fr) 2010-03-30

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20221003