DE69702310D1 - Verfahren zur gesicherten übertragung zwischen zwei geräten und dessen anwendung - Google Patents

Verfahren zur gesicherten übertragung zwischen zwei geräten und dessen anwendung

Info

Publication number
DE69702310D1
DE69702310D1 DE69702310T DE69702310T DE69702310D1 DE 69702310 D1 DE69702310 D1 DE 69702310D1 DE 69702310 T DE69702310 T DE 69702310T DE 69702310 T DE69702310 T DE 69702310T DE 69702310 D1 DE69702310 D1 DE 69702310D1
Authority
DE
Germany
Prior art keywords
random key
encrypted
encryption
key
enabling
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.)
Expired - Lifetime
Application number
DE69702310T
Other languages
English (en)
Other versions
DE69702310T2 (de
DE69702310T3 (de
Inventor
Paul Rix
Andrew Glasspool
Watts Davies
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.)
Irdeto Access BV
Original Assignee
DIGCO BV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8223844&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69702310(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by DIGCO BV filed Critical DIGCO BV
Application granted granted Critical
Publication of DE69702310D1 publication Critical patent/DE69702310D1/de
Publication of DE69702310T2 publication Critical patent/DE69702310T2/de
Publication of DE69702310T3 publication Critical patent/DE69702310T3/de
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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4367—Establishing a secure communication between the client and a peripheral device or smart card
    • 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
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4181—External card to be used in combination with the client device, e.g. for conditional access for conditional access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
    • 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
    • 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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
DE69702310T 1996-04-03 1997-03-21 Verfahren zur gesicherten übertragung zwischen zwei geräten und dessen anwendung Expired - Lifetime DE69702310T3 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP96200907 1996-04-03
EP96200907 1996-04-03
PCT/EP1997/001557 WO1997038530A1 (en) 1996-04-03 1997-03-21 Method for providing a secure communication between two devices and application of this method

Publications (3)

Publication Number Publication Date
DE69702310D1 true DE69702310D1 (de) 2000-07-20
DE69702310T2 DE69702310T2 (de) 2001-01-18
DE69702310T3 DE69702310T3 (de) 2008-11-13

Family

ID=8223844

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69702310T Expired - Lifetime DE69702310T3 (de) 1996-04-03 1997-03-21 Verfahren zur gesicherten übertragung zwischen zwei geräten und dessen anwendung

Country Status (17)

Country Link
US (2) US6385317B1 (de)
EP (1) EP0891670B2 (de)
JP (1) JP4633202B2 (de)
CN (1) CN1134161C (de)
AT (1) ATE193963T1 (de)
AU (1) AU2506397A (de)
BR (1) BR9708500A (de)
DE (1) DE69702310T3 (de)
DK (1) DK0891670T3 (de)
ES (1) ES2149585T5 (de)
GR (1) GR3034392T3 (de)
HK (1) HK1019683A1 (de)
HR (1) HRP970160A2 (de)
PT (1) PT891670E (de)
TW (1) TW369778B (de)
WO (1) WO1997038530A1 (de)
ZA (1) ZA972786B (de)

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ES2149585T5 (es) 2008-08-01
JP4633202B2 (ja) 2011-02-16
DE69702310T2 (de) 2001-01-18
EP0891670A1 (de) 1999-01-20
EP0891670B1 (de) 2000-06-14
BR9708500A (pt) 1999-08-03
US20020126844A1 (en) 2002-09-12
ES2149585T3 (es) 2000-11-01
DE69702310T3 (de) 2008-11-13
EP0891670B2 (de) 2008-05-14
US6385317B1 (en) 2002-05-07
AU2506397A (en) 1997-10-29
ZA972786B (en) 1997-10-23
GR3034392T3 (en) 2000-12-29
CN1134161C (zh) 2004-01-07
HK1019683A1 (en) 2000-02-18
WO1997038530A1 (en) 1997-10-16
US7171553B2 (en) 2007-01-30
JP2000508482A (ja) 2000-07-04
PT891670E (pt) 2000-12-29
TW369778B (en) 1999-09-11
CN1215528A (zh) 1999-04-28
ATE193963T1 (de) 2000-06-15
DK0891670T3 (da) 2000-10-30
HRP970160A2 (en) 1998-02-28

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