JP2001507177A - 暗号化されたビデオデータを処理するための復号化方法 - Google Patents
暗号化されたビデオデータを処理するための復号化方法Info
- Publication number
- JP2001507177A JP2001507177A JP52598998A JP52598998A JP2001507177A JP 2001507177 A JP2001507177 A JP 2001507177A JP 52598998 A JP52598998 A JP 52598998A JP 52598998 A JP52598998 A JP 52598998A JP 2001507177 A JP2001507177 A JP 2001507177A
- Authority
- JP
- Japan
- Prior art keywords
- data
- program
- encrypted
- code
- packet
- 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
- 238000000034 method Methods 0.000 title claims description 62
- 238000012545 processing Methods 0.000 title description 20
- 230000006978 adaptation Effects 0.000 claims description 9
- TVZRAEYQIKYCPH-UHFFFAOYSA-N 3-(trimethylsilyl)propane-1-sulfonic acid Chemical compound C[Si](C)(C)CCCS(O)(=O)=O TVZRAEYQIKYCPH-UHFFFAOYSA-N 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims 2
- 239000000872 buffer Substances 0.000 description 30
- 230000006870 function Effects 0.000 description 18
- 230000008569 process Effects 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 7
- 238000013478 data encryption standard Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000001010 compromised effect Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 238000001824 photoionisation detection Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000594011 Leuciscus leuciscus Species 0.000 description 1
- 241000488988 Monotropa Species 0.000 description 1
- ULFUTCYGWMQVIO-PCVRPHSVSA-N [(6s,8r,9s,10r,13s,14s,17r)-17-acetyl-6,10,13-trimethyl-3-oxo-2,6,7,8,9,11,12,14,15,16-decahydro-1h-cyclopenta[a]phenanthren-17-yl] acetate;[(8r,9s,13s,14s,17s)-3-hydroxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl] pentano Chemical compound C1CC2=CC(O)=CC=C2[C@@H]2[C@@H]1[C@@H]1CC[C@H](OC(=O)CCCC)[C@@]1(C)CC2.C([C@@]12C)CC(=O)C=C1[C@@H](C)C[C@@H]1[C@@H]2CC[C@]2(C)[C@@](OC(C)=O)(C(C)=O)CC[C@H]21 ULFUTCYGWMQVIO-PCVRPHSVSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- H04N21/41—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
- 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
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/4147—PVR [Personal Video Recorder]
-
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
-
- 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Storage Device Security (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.暗号化されたプログラム(番組)データおよび関連する暗号化コードを含む 入力データストリームから、暗号解読された番組を表すデータを発生する方法で あって、 前記暗号化コードを使用して前記暗号化された番組データを解読して、解読さ れた番組データを供給するステップと、 前記解読された番組データを含む出力データストリームを形成するステップと 、 前記出力データストリームから前記暗号化コードを除外するステップとから成 る、前記方法。 2.前記暗号化コードを除外するステップが、前記暗号化コードの代りにナル( 空白)データを使用する、請求項1記載の方法。 3.前記除外するステップが、前記暗号化コードを含むデータを省略するステッ プを含んでいる、請求項1記載の方法。 4.前記出力データストリームを形成するステップが、データ構成パラメータを 更新して、前記省略するステップから生じるパケット・データの省略を反映する ステップを含んでいる、請求項3記載の方法。 5.前記出力データストリームがMPEGと互換性を有する、請求項1記載の方 法。 6.暗号化された番組データおよび関連する暗号化コードを含む入力データスト リームから、暗号解読された番組を表すデータを発生する方法であって、 前記暗号化コードを使用し、前記暗号化された番組データを解読して、解読さ れた番組データを供給するステップと、 前記解読された番組データの復号化をサポートする補助データを形成するステ ップと、 前記補助データから前記暗号化コードを除外するステップと、 前記解読された番組データと前記補助データを含む出力データストリームを形 成するステップとから成る、前記方法。 7.前記除外するステップが、前記暗号化コードの代りにナル・データを代用す るステップを含んでいる、請求項6記載の方法。 8.前記代用するステップが、リアルタイムで前記暗号化コードの代りにナル・ データを代用する、請求項7記載の方法。 9.下記のデータ・フィールドのうちの1つから選択されるデータ・フィールド 内で前記ナル・データが前記暗号化コードの代りに使用される、請求項7記載の 方法:MPEG適応フィールド;MPEGパケット化された基本的ストリーム( PES)フィールド;MPEGディジタル記録媒体制御コマンド(DSMCC) フィールド;ディジタル衛星システム(DSSTM)補助パケット・データ・フィ ールド;および非MPEGデータ・フィールド。 10.前記除外するステップが、前記暗号化コードを含むデータを省略するステ ップを含んでいる、請求項6記載の方法。 11.前記補助データを形成するステップが、データ構成パラメータを更新して 、前記省略するステップから生じるパケット・データの省略を反映するステップ を含んでいる、請求項10記載の方法。 12.前記補助データを形成するステップが、前記解読された番組データの復号 化をサポートするProgram Specific Information(PSI)データから、前記暗 号化コードを含むデータを省略するステップを含んでいる、請求項10記載の方 法。 13.前記出力データストリームがMPEGと互換性を有する、請求項6記載の 方法。 14.暗号化された番組のパケット化されたデータおよび関連するパケット化さ れた暗号化コードを含む入力データストリームから、暗号解読された番組を表す パケット化されたデータを発生する方法であって、 前記暗号化コードを使用し、前記暗号化された番組のパケット・データを解読 して、解読された番組パケット・データを供給するステップと、 前記暗号化コード・パケットにおいて前記暗号化コードの代りに非暗号化コー ド・データを使用して、代用コード・パケットを供給するステップと、 前記解読された番組パケット・データおよび前記代用コード・パケットを含む 出力データストリームを形成するステップとから成る、前記方法。 15.下記のデータ・フィールドのうちの1つから選ばれたデータ・フィールド において前記非暗号化コード・データが前記暗号化コードの代りに使用される、 請求項14記載の方法:MPEG適応化フィールド;MPEGパケット化された 基本的ストリーム(PES)フィールド;MPEGディジタル記録媒体制御コマ ンド(DSMCC)フィールド;ディジタル衛星システム(DSSTM)補助パケ ット・データ・フィールド;および非MPEGデータ・フィールド。 16.ホスト装置の中へ挿入可能な電子的装置内に保存された暗号化キー再生ア ルゴリズムを使用して、暗号化された番組データおよび関連する暗号化コードを 含む入力データストリームから、暗号解読された番組を表すデータを発生する方 法であって、 第1と第2のアルゴリズムを選択して、前記暗号化キー再生アルゴリズムを得 るステップと、 前暗号化キー再生アルゴリズムを適用して、前記暗号化コードを解読し、放送 暗号化キーを再生するステップと、 前記暗号化キーを使用して、前記暗号化された番組データを解読して、解読さ れた番組データを再生するステップと、 前記解読された番組データを含む出力データストリームを形成するステップと 、 前記出力データストリームから前記暗号化されたコードを除外するステップと から成る、前記方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/762,483 US5878135A (en) | 1996-11-27 | 1996-11-27 | Decoding system for processing encrypted broadcast, cable or satellite video data |
US08/762,483 | 1996-11-27 | ||
PCT/US1997/019374 WO1998024236A1 (en) | 1996-11-27 | 1997-10-28 | Method of processing encrypted video data for generating decrypted program data |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009276626A Division JP2010109996A (ja) | 1996-11-27 | 2009-12-04 | 暗号化されたビデオデータを処理するための復号化方法 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2001507177A true JP2001507177A (ja) | 2001-05-29 |
JP2001507177A5 JP2001507177A5 (ja) | 2005-07-14 |
JP4592833B2 JP4592833B2 (ja) | 2010-12-08 |
Family
ID=25065195
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52598998A Expired - Lifetime JP4592833B2 (ja) | 1996-11-27 | 1997-10-28 | 暗号化された放送番組データを処理する方法 |
JP2009276626A Pending JP2010109996A (ja) | 1996-11-27 | 2009-12-04 | 暗号化されたビデオデータを処理するための復号化方法 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009276626A Pending JP2010109996A (ja) | 1996-11-27 | 2009-12-04 | 暗号化されたビデオデータを処理するための復号化方法 |
Country Status (13)
Country | Link |
---|---|
US (1) | US5878135A (ja) |
EP (1) | EP0941610B1 (ja) |
JP (2) | JP4592833B2 (ja) |
KR (1) | KR100474209B1 (ja) |
CN (1) | CN1168312C (ja) |
AU (1) | AU7402398A (ja) |
BR (1) | BR9714318B1 (ja) |
CA (1) | CA2272921C (ja) |
DE (1) | DE69718199T2 (ja) |
ES (1) | ES2189001T3 (ja) |
MY (1) | MY117019A (ja) |
TW (1) | TW376656B (ja) |
WO (1) | WO1998024236A1 (ja) |
Cited By (4)
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JP2006140624A (ja) * | 2004-11-10 | 2006-06-01 | Toshiba Corp | 情報処理装置 |
JP2010109996A (ja) * | 1996-11-27 | 2010-05-13 | Uqe Llc | 暗号化されたビデオデータを処理するための復号化方法 |
JP2011078111A (ja) * | 2010-11-05 | 2011-04-14 | Toshiba Corp | 情報処理装置 |
JP2012133426A (ja) * | 2010-12-20 | 2012-07-12 | Sony Corp | 情報処理装置、および情報処理方法、並びにプログラム |
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1997
- 1997-10-28 BR BRPI9714318-9A patent/BR9714318B1/pt not_active IP Right Cessation
- 1997-10-28 ES ES97949339T patent/ES2189001T3/es not_active Expired - Lifetime
- 1997-10-28 CN CNB971801193A patent/CN1168312C/zh not_active Expired - Lifetime
- 1997-10-28 CA CA002272921A patent/CA2272921C/en not_active Expired - Lifetime
- 1997-10-28 EP EP97949339A patent/EP0941610B1/en not_active Expired - Lifetime
- 1997-10-28 AU AU74023/98A patent/AU7402398A/en not_active Abandoned
- 1997-10-28 WO PCT/US1997/019374 patent/WO1998024236A1/en active IP Right Grant
- 1997-10-28 KR KR10-1999-7004519A patent/KR100474209B1/ko not_active IP Right Cessation
- 1997-10-28 DE DE69718199T patent/DE69718199T2/de not_active Expired - Lifetime
- 1997-10-28 JP JP52598998A patent/JP4592833B2/ja not_active Expired - Lifetime
- 1997-11-24 TW TW086117560A patent/TW376656B/zh active
- 1997-11-26 MY MYPI97005704A patent/MY117019A/en unknown
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2009
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Cited By (4)
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JP2010109996A (ja) * | 1996-11-27 | 2010-05-13 | Uqe Llc | 暗号化されたビデオデータを処理するための復号化方法 |
JP2006140624A (ja) * | 2004-11-10 | 2006-06-01 | Toshiba Corp | 情報処理装置 |
JP2011078111A (ja) * | 2010-11-05 | 2011-04-14 | Toshiba Corp | 情報処理装置 |
JP2012133426A (ja) * | 2010-12-20 | 2012-07-12 | Sony Corp | 情報処理装置、および情報処理方法、並びにプログラム |
Also Published As
Publication number | Publication date |
---|---|
BR9714318A (pt) | 2000-02-08 |
DE69718199T2 (de) | 2004-03-25 |
ES2189001T3 (es) | 2003-07-01 |
CA2272921A1 (en) | 1998-06-04 |
BR9714318B1 (pt) | 2011-06-28 |
JP4592833B2 (ja) | 2010-12-08 |
KR20000057198A (ko) | 2000-09-15 |
CN1168312C (zh) | 2004-09-22 |
JP2010109996A (ja) | 2010-05-13 |
MY117019A (en) | 2004-04-30 |
CN1238886A (zh) | 1999-12-15 |
TW376656B (en) | 1999-12-11 |
WO1998024236A1 (en) | 1998-06-04 |
AU7402398A (en) | 1998-06-22 |
US5878135A (en) | 1999-03-02 |
KR100474209B1 (ko) | 2005-03-08 |
EP0941610B1 (en) | 2003-01-02 |
DE69718199D1 (de) | 2003-02-06 |
EP0941610A1 (en) | 1999-09-15 |
CA2272921C (en) | 2006-06-13 |
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