JP2000508482A - 2つの装置間の安全な通信を提供するための方法およびこの方法の応用 - Google Patents
2つの装置間の安全な通信を提供するための方法およびこの方法の応用Info
- Publication number
- JP2000508482A JP2000508482A JP9535793A JP53579397A JP2000508482A JP 2000508482 A JP2000508482 A JP 2000508482A JP 9535793 A JP9535793 A JP 9535793A JP 53579397 A JP53579397 A JP 53579397A JP 2000508482 A JP2000508482 A JP 2000508482A
- Authority
- JP
- Japan
- Prior art keywords
- decoder
- access module
- key
- conditional access
- smart card
- 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
Links
Classifications
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- 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
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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
-
- 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
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- 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
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 2つの装置間の安全な通信を提供するための方法であって、 第1の装置が、ランダムな鍵(Ci)を発生させ、該鍵を、公開鍵を用いて暗 号化された第1のメッセージの形で第2の装置へ転送し、 該第2の装置が、前記ランダムな鍵(Ci)を得るために、対応する秘密鍵に よって前記第1の暗号化されたメッセージを解読し、 前記ランダムな鍵が、前記装置間の送信を暗号化し、かつ、解読するために用 いられることを特徴とする方法。 2. 前記暗号化されたメッセージを解読した後に、前記第2の装置が、最初 に前記ランダムな鍵(Ci)を、認証を有する第2の暗号化されたメッセージの 形で前記第1の装置へ返すことを特徴とする請求項1記載の方法。 3. 前記認証を提供するために、前記第1の装置が、さらに乱数(A)を発 生させ、この乱数(A)を前記ランダムな鍵(Ci)とともに、前記第1の暗号 化されたメッセージの形で前記第2の装置へ転送し、該第2の装置が、前記第2 の暗号化されたメッセージ内の認証のために前記乱数(A)を用いることを特徴 とする請求項2記載の方法。 4. 前記第2の装置が、前記第2の暗号化されたメッセージを得るために、 前記ランダムな鍵(Ci)のもとで前記乱数(A)を暗号化することを特徴とす る請求項3記載の方法。 5. 有料テレビシステム用のデコーダにおける請求項1から請求項4のいず れかに記載の方法の応用であって、 前記デコーダが、条件付きアクセスモジュール(CAM)とスマートカード( SC)とを具備しており、前記方法が、制御アクセスモジュールと前記スマート カードとの間の安全な通信を提供するために応用されることを特徴とする方法の 応用。 6. 有料テレビシステム用のデコーダにおける請求項1から請求項4のいず れかに記載の方法の応用であって、 前記デコーダが、条件付きアクセスモジュール(CAM)とスマートカード( SC)とを具備しており、前記方法が、前記デコーダと前記条件付きアクセスモ ジュールとの間の安全な通信を提供するために応用されることを特徴とする方法 の応用。 7. 有料テレビシステム用のデコーダであって、 条件付きアクセスモジュールとスマートカードとを具備し、 前記条件付きアクセスモジュールが、 ランダムな鍵(Ci)を発生させるための手段と、 該鍵を、公開鍵による暗号化方法を用いて第1の暗号化されたメッセージの形 で暗号化するための手段と、 前記第1の暗号化されたメッセージを前記スマートカードへ転送するための手 段とを具備しており、 該スマートカードが、 前記ランダムな鍵を得るために、前記第1の暗号化されたメッセージを受信し 、かつ、解読するための手段と、 前記ランダムな鍵のもとで前記条件付きアクセスモジュールへの送信を暗号化 するための手段とを具備し、 該条件付きアクセスモジュールが、前記スマートカードから受信された前記送 信を解読するための手段を有していることを特徴とするデコーダ。 8. 前記スマートカードが、前記ランダムな鍵を、認証を有する第2の暗号 化されたメッセージの形で前記条件付きアクセスモジュールへ返すための手段を 具備していることを特徴とする請求項7記載のデコーダ。 9. 前記条件付きアクセスモジュールの前記発生手段が、さらに前記第1の 暗号化されたメッセージに含まれる乱数を発生し、前記スマートカードが、前記 第2の暗号化されたメッセージ内の認証として前記乱数を用いるように適合され ていることを特徴とする請求項8記載のデコーダ。 10. 有料テレビシステム用のデコーダであって、 条件付きアクセスモジュールとスマートカードとを具備し、 ランダムな鍵(Ci)を発生させるための手段と、 該鍵を、公開鍵による暗号化方法を用いて第1の暗号化されたメッセージの形 で暗号化するための手段と、 前記第1の暗号化されたメッセージを前記条件付きアクセスモジュールへ転送 するための手段とを具備し 前記条件付きアクセスモジュールが、 前記ランダムな鍵を得るために、前記第1の暗号化されたメッセージを受信し 、かつ、解読するための手段と、 前記ランダムな鍵のもとで前記デコーダへの送信を暗号化するための手段とを 具備していることを特徴とするデコーダであって、 前記条件付きアクセスモジュールから受信された前記送信を解読するための手 段を有していることを特徴とするデコーダ。 11. 前記条件付きアクセスモジュールが、前記ランダムな鍵を、認証を有 する第2の暗号化されたメッセージの形で前記デコーダへ返すための手段を具備 していることを特徴とする請求項10記載のデコーダ。 12. 前記デコーダの前記発生手段が、さらに前記第1の暗号化されたメッ セージに含まれる乱数を発生し、前記条件付きアクセスモジュールが、前記第2 の暗号化されたメッセージ内の認証として前記乱数を用いるように適合されてい ることを特徴とする請求項11記載のデコーダ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96200907 | 1996-04-03 | ||
EP96200907.2 | 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 (2)
Publication Number | Publication Date |
---|---|
JP2000508482A true JP2000508482A (ja) | 2000-07-04 |
JP4633202B2 JP4633202B2 (ja) | 2011-02-16 |
Family
ID=8223844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53579397A Expired - Fee Related JP4633202B2 (ja) | 1996-04-03 | 1997-03-21 | 2つの装置間の安全な通信を提供するための方法およびこの方法の応用 |
Country Status (17)
Country | Link |
---|---|
US (2) | US6385317B1 (ja) |
EP (1) | EP0891670B2 (ja) |
JP (1) | JP4633202B2 (ja) |
CN (1) | CN1134161C (ja) |
AT (1) | ATE193963T1 (ja) |
AU (1) | AU2506397A (ja) |
BR (1) | BR9708500A (ja) |
DE (1) | DE69702310T3 (ja) |
DK (1) | DK0891670T3 (ja) |
ES (1) | ES2149585T5 (ja) |
GR (1) | GR3034392T3 (ja) |
HK (1) | HK1019683A1 (ja) |
HR (1) | HRP970160A2 (ja) |
PT (1) | PT891670E (ja) |
TW (1) | TW369778B (ja) |
WO (1) | WO1997038530A1 (ja) |
ZA (1) | ZA972786B (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007502576A (ja) * | 2003-08-13 | 2007-02-08 | トムソン ライセンシング | コンテンツキーを介した通信ネットワーク上の安全なコンテンツ送信のための方法及び装置 |
JP2008547312A (ja) * | 2005-06-23 | 2008-12-25 | トムソン ライセンシング | マルチメディア・アクセス・デバイスの登録システム及び方法 |
JP2010193449A (ja) * | 2009-02-13 | 2010-09-02 | Irdeto Access Bv | スマートカードからコンディショナルアクセスモジュールへのコントロールワードのセキュアな提供法 |
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-
1997
- 1997-03-19 HR HR96200907.2A patent/HRP970160A2/hr not_active Application Discontinuation
- 1997-03-21 AU AU25063/97A patent/AU2506397A/en not_active Abandoned
- 1997-03-21 PT PT97916402T patent/PT891670E/pt unknown
- 1997-03-21 AT AT97916402T patent/ATE193963T1/de not_active IP Right Cessation
- 1997-03-21 CN CNB971935653A patent/CN1134161C/zh not_active Expired - Fee Related
- 1997-03-21 EP EP97916402A patent/EP0891670B2/en not_active Expired - Lifetime
- 1997-03-21 WO PCT/EP1997/001557 patent/WO1997038530A1/en active IP Right Grant
- 1997-03-21 BR BR9708500A patent/BR9708500A/pt not_active IP Right Cessation
- 1997-03-21 US US09/155,782 patent/US6385317B1/en not_active Expired - Lifetime
- 1997-03-21 DK DK97916402T patent/DK0891670T3/da active
- 1997-03-21 DE DE69702310T patent/DE69702310T3/de not_active Expired - Lifetime
- 1997-03-21 JP JP53579397A patent/JP4633202B2/ja not_active Expired - Fee Related
- 1997-03-21 ES ES97916402T patent/ES2149585T5/es not_active Expired - Lifetime
- 1997-04-02 ZA ZA9702786A patent/ZA972786B/xx unknown
- 1997-07-10 TW TW086109713A patent/TW369778B/zh not_active IP Right Cessation
-
1999
- 1999-10-25 HK HK99104742A patent/HK1019683A1/xx not_active IP Right Cessation
-
2000
- 2000-09-13 GR GR20000402082T patent/GR3034392T3/el not_active IP Right Cessation
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2002
- 2002-03-18 US US10/101,122 patent/US7171553B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007502576A (ja) * | 2003-08-13 | 2007-02-08 | トムソン ライセンシング | コンテンツキーを介した通信ネットワーク上の安全なコンテンツ送信のための方法及び装置 |
JP4690321B2 (ja) * | 2003-08-13 | 2011-06-01 | トムソン ライセンシング | コンテンツキーを介した通信ネットワーク上の安全なコンテンツ送信のための方法及び装置 |
JP2008547312A (ja) * | 2005-06-23 | 2008-12-25 | トムソン ライセンシング | マルチメディア・アクセス・デバイスの登録システム及び方法 |
JP2010193449A (ja) * | 2009-02-13 | 2010-09-02 | Irdeto Access Bv | スマートカードからコンディショナルアクセスモジュールへのコントロールワードのセキュアな提供法 |
Also Published As
Publication number | Publication date |
---|---|
DK0891670T3 (da) | 2000-10-30 |
DE69702310T2 (de) | 2001-01-18 |
TW369778B (en) | 1999-09-11 |
JP4633202B2 (ja) | 2011-02-16 |
EP0891670A1 (en) | 1999-01-20 |
DE69702310D1 (de) | 2000-07-20 |
GR3034392T3 (en) | 2000-12-29 |
CN1215528A (zh) | 1999-04-28 |
WO1997038530A1 (en) | 1997-10-16 |
HRP970160A2 (en) | 1998-02-28 |
HK1019683A1 (en) | 2000-02-18 |
EP0891670B1 (en) | 2000-06-14 |
EP0891670B2 (en) | 2008-05-14 |
ES2149585T3 (es) | 2000-11-01 |
PT891670E (pt) | 2000-12-29 |
US6385317B1 (en) | 2002-05-07 |
CN1134161C (zh) | 2004-01-07 |
ZA972786B (en) | 1997-10-23 |
AU2506397A (en) | 1997-10-29 |
ATE193963T1 (de) | 2000-06-15 |
DE69702310T3 (de) | 2008-11-13 |
BR9708500A (pt) | 1999-08-03 |
US20020126844A1 (en) | 2002-09-12 |
ES2149585T5 (es) | 2008-08-01 |
US7171553B2 (en) | 2007-01-30 |
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