CY1113006T1 - Φορεας πληροφοριων, ο οποιος περιλαμβανει πληροφοριες προσβασης - Google Patents

Φορεας πληροφοριων, ο οποιος περιλαμβανει πληροφοριες προσβασης

Info

Publication number
CY1113006T1
CY1113006T1 CY20121100263T CY121100263T CY1113006T1 CY 1113006 T1 CY1113006 T1 CY 1113006T1 CY 20121100263 T CY20121100263 T CY 20121100263T CY 121100263 T CY121100263 T CY 121100263T CY 1113006 T1 CY1113006 T1 CY 1113006T1
Authority
CY
Cyprus
Prior art keywords
bits
information
access information
random
variation
Prior art date
Application number
CY20121100263T
Other languages
English (en)
Inventor
Aalbert Stek
Martinus W Blum
Rompaey Bart Van
Jacobus P J Heemskerk
Original Assignee
Koninklijke Philips Electronics N.V.
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
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of CY1113006T1 publication Critical patent/CY1113006T1/el

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G11B20/00297—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD
    • G11B20/00304—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD the key being stored in the lead-in area [LIA]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G11B20/00405—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored by varying characteristics of the recording track, e.g. by altering the track pitch or by modulating the wobble track
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00579—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the data encoding, e.g., modulation schemes violating run-length constraints, causing excessive DC content, or involving uncommon codewords or sync patterns
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00586—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1288—Formatting by padding empty spaces with dummy data, e.g. writing zeroes or random data when de-icing optical discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs

Abstract

Η εφεύρεση αναφέρεται σε ένα φορέα πληροφοριών για την τήρηση πληροφοριών χρήστη, όπου ο φορέας πληροφοριών περιλαμβάνει πληροφορίες πρόσβασης με τη μορφή δυαδικών ψηφίων πληροφοριών πρόσβασης για την πρόσβαση στις πληροφορίες χρήστη, όπου οι πληροφορίες πρόσβασης αποθηκεύονται στο φορέα πληροφοριών σε μία μεταβολή μίας παραμέτρου, η οποία μεταβολή είναι ανιχνεύσιμη μέσω ολοκληρωματικής ανίχνευσης. Τα δυαδικά ψηφία πληροφοριών πρόσβασης περιπλέκονται σύμφωνα με μία προκαθορισμένη μέθοδο περιπλοκής. Μέσω της περιπλοκής των δυαδικών ψηφίων πληροφοριών πρόσβασης σύμφωνα με μία προκαθορισμένη μέθοδο περιπλοκής, η ανίχνευση των πληροφοριών πρόσβασης δεν είναι δυνατή όσο δεν είναι γνωστή η μέθοδος περιπλοκής. Η χρήση της τεχνικής ολοκληρωματικής ανίχνευσης έχει σαν αποτέλεσμα οι πληροφορίες πρόσβασης να είναι γνωστές μόνο σε όποιον γνωρίζει πως πρέπει να γίνεται επεξεργασία του σήματος, το οποίο λαμβάνεται αφού αναγνώζεται η περιοχή, η οποία περιλαμβάνει τα δυαδικά ψηφία πληροφοριών πρόσβασης. Με αυτό τον τρόπο εμποδίζεται περαιτέρω η έκνομη ανάκτηση των πληροφοριών χρήστη.
CY20121100263T 2003-02-20 2012-03-14 Φορεας πληροφοριων, ο οποιος περιλαμβανει πληροφοριες προσβασης CY1113006T1 (el)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1022743 2003-02-20
EP04708423A EP1597727B1 (en) 2003-02-20 2004-02-05 Information carrier comprising access information

Publications (1)

Publication Number Publication Date
CY1113006T1 true CY1113006T1 (el) 2016-04-13

Family

ID=32906716

Family Applications (1)

Application Number Title Priority Date Filing Date
CY20121100263T CY1113006T1 (el) 2003-02-20 2012-03-14 Φορεας πληροφοριων, ο οποιος περιλαμβανει πληροφοριες προσβασης

Country Status (13)

Country Link
US (1) US8718277B2 (el)
EP (2) EP1959448B1 (el)
JP (2) JP4672645B2 (el)
KR (1) KR101016988B1 (el)
CN (2) CN1751347B (el)
AT (1) ATE539436T1 (el)
CY (1) CY1113006T1 (el)
DK (1) DK1597727T3 (el)
ES (1) ES2379551T3 (el)
PT (1) PT1597727E (el)
SI (1) SI1597727T1 (el)
TW (1) TWI364968B (el)
WO (1) WO2004075187A1 (el)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100499586B1 (ko) 2003-05-20 2005-07-07 엘지전자 주식회사 고밀도 광디스크의 복사 방지 정보 관리방법 및 그에 따른고밀도 광디스크와 복사 방지 정보 검출장치
JP4110530B2 (ja) * 2003-10-22 2008-07-02 ソニー株式会社 情報記録処理装置、情報再生処理装置、情報記録媒体、および方法、並びにコンピュータ・プログラム
US7746746B2 (en) * 2004-11-16 2010-06-29 Hewlett-Packard Development Company, L.P. Optical media with control data in wobble
WO2006136986A2 (en) * 2005-06-21 2006-12-28 Koninklijke Philips Electronics N.V. Device and a method for embedding a secondary information signal in the channel data stream of a primary information signal using scrambling
WO2007029147A2 (en) * 2005-09-09 2007-03-15 Koninklijke Philips Electronics N.V. Bd9 hybrid disc and copy protection system therefor
EP1958194A2 (en) * 2005-11-29 2008-08-20 Koninklijke Philips Electronics N.V. Record carrier with copy protection means
JP4787650B2 (ja) * 2006-03-31 2011-10-05 Ｎｅｃパーソナルプロダクツ株式会社 コンテンツ記録方法、コンテンツ移動装置及びコンテンツ再生方法並びにこれらの装置
KR101467761B1 (ko) * 2007-10-26 2014-12-03 엘지전자 주식회사 통신 시스템에서의 데이터 송수신 방법

Family Cites Families (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8000121A (nl) * 1980-01-09 1981-08-03 Philips Nv Schijfvormige, optische uitleesbare registratiedrager als opslagmedium voor datainformatie, inrichting voor het vervaardigen van zo'n registratiedrager, inrichting voor het optekenen van datainformatie in zo'n registratiedrager en inrichting voor het uitlezen van zo'n registratiedrager.
JPS6455615A (en) 1987-08-26 1989-03-02 Mitsubishi Electric Corp Automatic power factor adjusting device
JPH01196675A (ja) 1988-01-30 1989-08-08 Toshiba Corp パターンデータ生成方式
JP2779039B2 (ja) * 1990-03-26 1998-07-23 日立マクセル株式会社 光記録装置
DE69233335T2 (de) 1991-12-02 2005-02-10 Koninklijke Philips Electronics N.V. Geschlossenes Informationssystem mit Kopierschutz
JP3073590B2 (ja) * 1992-03-16 2000-08-07 富士通株式会社 電子化データ保護システム、使用許諾者側装置および使用者側装置
JPH07130092A (ja) * 1993-11-05 1995-05-19 Sony Corp ディスク記録装置、ディスク再生装置およびディスク状記録媒体
EP0686968B1 (en) * 1994-06-07 1999-01-07 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, optical information recording method, and optical information reproducing apparatus using the same
WO1996027191A1 (en) * 1995-02-28 1996-09-06 Isis Innovation Limited Covert identification
WO1997014146A1 (fr) * 1995-10-09 1997-04-17 Matsushita Electric Industrial Co., Ltd. Disque optique; procede de formation de codes barres pour disque optique; appareil de reproduction de disque optique, et procede de marquage; procede de marquage au laser pour disque optique, et procede de fabrication de disque optique
DE69634850T2 (de) * 1995-10-09 2006-05-18 Matsushita Electric Industrial Co., Ltd., Kadoma Informationsaufzeichnungsträger, informationswiedergabegerät und informationswiedergabeverfahren
FR2741215B1 (fr) * 1995-11-14 1998-01-23 Matra Communication Procede de transmission d'une sequence de bits d'information avec protection selective contre les erreurs de transmission, procedes de codage et de correction pouvant etre mis en oeuvre dans un tel procede de transmission
EP0880129B1 (en) * 1996-02-08 2000-12-27 Matsushita Electric Industrial Co., Ltd. Optical disk, optical disk device, and method of reproducing information on optical disk
JPH09288832A (ja) * 1996-04-22 1997-11-04 Toshiba Corp トラッキングエラー信号生成回路
CN1198828A (zh) * 1996-06-27 1998-11-11 菲利浦电子有限公司 包含辅助信息的信息载体,读出装置,以及制造这种信息载体的方法
US5886979A (en) * 1996-10-21 1999-03-23 Fujitsu Limitd Information recording medium and method for recording and reproducing information to a medium to prevent unauthorized copying
EP0934588B1 (en) * 1996-10-25 2000-09-13 Matsushita Electric Industrial Co., Ltd. Optical disc having oscillating lands and grooves
JPH10199003A (ja) * 1997-01-10 1998-07-31 Sony Corp 光ディスク装置
ATE388470T1 (de) * 1997-05-30 2008-03-15 Macrovision Europ Ltd Kopierschutzverfahren für einen aufzeichnungsträger
US6587948B1 (en) * 1998-02-13 2003-07-01 Sony Corporation Recording apparatus, recording medium, playback apparatus, recording method and playback method
US6345023B1 (en) * 1998-04-14 2002-02-05 Hitachi, Ltd. Optical disc apparatus with different frequencies of wobble signal and clock signal for rotation control
DE69940281D1 (de) * 1998-07-22 2009-02-26 Panasonic Corp Digitale Datenaufzeichnungsvorrichtung und Verfahren zum Urheberrechteschutz und zur leichteren Wiedergabe von verschlüsselten Daten und rechnerlesbares Aufzeichnungsmedium zur Programmaufzeichnung
JP3819160B2 (ja) * 1998-09-18 2006-09-06 富士通株式会社 情報管理方法および情報管理装置
US6665240B1 (en) 1998-10-07 2003-12-16 Sony Corporation Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disk
JP4051515B2 (ja) 1998-12-28 2008-02-27 ソニー株式会社 ディスク記録装置、ディスクの記録方法、光ディスク再生装置、光ディスクの再生方法、光ディスク及び信号処理回路
ES2231153T3 (es) 1999-01-27 2005-05-16 Koninklijke Philips Electronics N.V. Soporte de grabacion, dispositivo de reproduccion y metodo de grabacion de informacion.
EP1058254B1 (en) * 1999-04-28 2004-07-07 Matsushita Electric Industrial Co., Ltd. Optical disk, optical disk recording and reproducing apparatus, and method for recording and reproducing
US6304530B1 (en) * 1999-06-07 2001-10-16 Kabushiki Kaisha Sankyo Seiki Seisakusho Optical data reproduction apparatus
JP3646856B2 (ja) 1999-07-05 2005-05-11 本田技研工業株式会社 ハイブリッド車両駆動装置
JP4253944B2 (ja) * 1999-08-31 2009-04-15 ソニー株式会社 記録媒体、記録媒体製造装置及び記録媒体製造方法、データ記録装置及びデータ記録方法
JP3676631B2 (ja) 1999-10-29 2005-07-27 松下電器産業株式会社 映像音声同期再生装置
JP2001209937A (ja) 2000-01-27 2001-08-03 Ricoh Co Ltd 復調装置及び情報記録再生装置
JP2001251598A (ja) * 2000-03-03 2001-09-14 Yamaha Corp 映像配給再生方法、映像配給側装置、映像再生側装置、及び記録媒体
CN1242617C (zh) 2000-03-03 2006-02-15 雅马哈株式会社 视频分配播放方法、视频分配端装置和视频播放端装置
US6937814B1 (en) * 2000-04-14 2005-08-30 Realnetworks, Inc. System and method for play while recording processing
JP2001320363A (ja) 2000-05-10 2001-11-16 Pioneer Electronic Corp 著作権保護方法、記録方法、記録装置、再生方法及び再生装置
JP2002056541A (ja) * 2000-07-25 2002-02-22 Samsung Electronics Co Ltd 光ディスク
CN1273982C (zh) 2000-07-28 2006-09-06 麦克罗维西恩欧洲公司 光盘复制保护的方法
JP2002093058A (ja) 2000-09-20 2002-03-29 Toshiba Corp 信号処理方法及び装置と情報記録媒体
JP2002203369A (ja) 2000-09-22 2002-07-19 Matsushita Electric Ind Co Ltd 光ディスク、その再生方法、再生装置および記録装置
AU2001288104A1 (en) 2000-09-22 2002-04-02 Matsushita Electric Industrial Co., Ltd. Optical disc and a reproduction method, reproduction apparatus, and recording apparatus for the same
JP4265096B2 (ja) 2000-09-28 2009-05-20 日本ビクター株式会社 信号変調方法及び情報記録媒体
JP2002109835A (ja) 2000-09-28 2002-04-12 Victor Co Of Japan Ltd データ記録再生装置及び情報記録媒体
JP2002108711A (ja) 2000-09-29 2002-04-12 Tamura Electric Works Ltd データ処理装置及びデータ処理方法
JP3722004B2 (ja) 2001-03-29 2005-11-30 日本ビクター株式会社 電子透かし情報埋め込み装置、電子透かし情報再生装置及び記録媒体
US7113612B2 (en) 2001-03-22 2006-09-26 Victor Company Of Japan, Ltd. Apparatus for embedding and reproducing watermark into and from contents data
JP2002298513A (ja) 2001-03-30 2002-10-11 Toshiba Corp 情報媒体、記録装置、再生装置、アクセス制御方法、およびトラック外れ検出方法
JP3442369B2 (ja) 2001-04-25 2003-09-02 シャープ株式会社 データ再生方法及びデータ記録方法
JP2004531957A (ja) 2001-05-09 2004-10-14 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 記録担体に格納された暗号化データを復号化する方法及び装置
JP2003085890A (ja) * 2001-09-12 2003-03-20 Pioneer Electronic Corp 情報記録方法および情報記録媒体
US7339869B2 (en) * 2001-09-28 2008-03-04 Matsushita Electric Industrial Co., Ltd. Optical disk and optical method
JP3664678B2 (ja) 2001-12-17 2005-06-29 シャープ株式会社 動画像再生装置
JP4273767B2 (ja) 2003-01-06 2009-06-03 ソニー株式会社 マスタリング装置、ディスク製造方法、ディスク状記録媒体、ディスク再生装置、ディスク再生方法

Also Published As

Publication number Publication date
ES2379551T3 (es) 2012-04-27
CN1751347A (zh) 2006-03-22
JP2006518525A (ja) 2006-08-10
US20060190741A1 (en) 2006-08-24
TW200423670A (en) 2004-11-01
JP4672645B2 (ja) 2011-04-20
PT1597727E (pt) 2012-03-22
EP1597727A1 (en) 2005-11-23
JP4824730B2 (ja) 2011-11-30
EP1597727B1 (en) 2011-12-28
DK1597727T3 (da) 2012-04-16
TWI364968B (en) 2012-05-21
CN101577132A (zh) 2009-11-11
EP1959448A2 (en) 2008-08-20
WO2004075187A1 (en) 2004-09-02
CN101577132B (zh) 2015-05-27
EP1959448B1 (en) 2013-04-10
EP1959448A3 (en) 2009-07-29
KR101016988B1 (ko) 2011-02-25
SI1597727T1 (sl) 2012-05-31
US8718277B2 (en) 2014-05-06
JP2009009696A (ja) 2009-01-15
CN1751347B (zh) 2011-12-07
KR20050111591A (ko) 2005-11-25
ATE539436T1 (de) 2012-01-15

Similar Documents

Publication Publication Date Title
CY1113006T1 (el) Φορεας πληροφοριων, ο οποιος περιλαμβανει πληροφοριες προσβασης
US6456726B1 (en) Methods and apparatus for multi-layer data hiding
Indrayani et al. Increasing the security of mp3 steganography using AES Encryption and MD5 hash function
HUP0303862A2 (hu) Adatrögzítő berendezés, eljárás, számítógéppel végrehajtható program, valamint közeg
WO2005006197A3 (en) An apparatus and method for memory encryption with reduced decryption latency
DE602007004772D1 (de) Verfahren und Vorrichtung zur Verschlüsselung eines Sicherheitsschlüssels in einem mobilen Kommunikationsendgerät
WO2003042799A3 (en) Device and method with reduced information leakage
NO20034408D0 (no) Krypteringsapparat
EA200601497A1 (ru) Способ (варианты) и устройство для криптографической обработки данных (варианты)
EP0950941A3 (en) Method of and apparatus for protecting data on storage medium and storage medium
CN103778590A (zh) 利用数字图像存储和传输信息的方法和装置
EP1492106A3 (en) A method to authenticate a data processing apparatus having a recording device and apparatuses therefor
WO2003096609A1 (fr) Dispositif de chiffrement et dispositif de dechiffrement
WO2004075546A3 (en) Unique identifier per chip for digital audio/video data encryption/decryption in personal video recorders
ATE341080T1 (de) Vorrichtung und verfahren zur wiedergabe von benutzerdaten
KR20020022131A (ko) 디지털 권리들 관리를 위한 신호 프로세싱 방법들,디바이스들 및 응용들
ES2225137T3 (es) Sistema de marca de agua para datos digitales, utilizando nuevos metodos de insercion y deteccion de marca de agua.
HUP0004175A2 (hu) Eljárás, berendezés és adathordozó többszavas információ kódolására
FR3056789A1 (fr) Procede de chiffrement ou de dechiffrement symetrique par bloc
FR3056322A1 (fr) Procede de chiffrement ou de dechiffrement protege contre des attaques par canaux caches
CN100483293C (zh) 处理复制保护信号
CN1317898A (zh) 解密装置
EP1182532A3 (en) Information processing apparatus, executable module generating method, and storage medium
Krishnan et al. Spread spectrum based encrypted audio steganographic system with improved security
Kurtuldu et al. A new steganography method using image layers