DOCSLIB.ORG

Tree-Based Symmetric Key Broadcast Encryption

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Tree-Based Symmetric Key Broadcast Encryption A thesis submitted to Indian Statistical Institute in partial fulfillment of the thesis requirements for the degree of Doctor of Philosophy in Computer Science Author: Supervisor: Sanjay Bhattacherjee Prof. Palash Sarkar Applied Statistics Unit Indian Statistical Institute 203, B. T. Road, Kolkata, West Bengal, India - 700 108. To my family. Acknowledgements I have always believed that life has been very kind to me. I have probably almost always got more than I deserved. This thesis is a culmination of all that I have earned through my associations with the people around me. I take up this opportunity to account for all that I have received from the innumerable contributors in my life till date. This is more of a remembral and hence is in no way exhaustive accounting. After my graduation, I worked in the industry for two years. I joined the M. Tech. (CS) course in 2007 at the Indian Statistical Institute, Kolkata. Prof. Palash Sarkar was one of the faculty members teaching in the first semester. Within the first few days of attending Palash-da's classes, I knew that he was one of those people I would aspire to be like. It has been a privilege being his student and then an even more enriching experience to have him as my thesis supervisor first during M. Tech. and then during PhD. His inspiration has played a consistent role in shaping up my academic contours. While working together, he knew almost every time how to get the best out of me. His meticulous discipline, academic depth and breadth, clarity of thought and consistent effort are few of his many qualities I would like to succeed in emulating some day. Most cherished of all that I have received from him is his unending support, guidance and encouragement - academic and otherwise. My PhD days would not have been as enjoyable without the presence of Dr. Kishan Chand Gupta. Academic discussions with Kishan-da are always very revealing because of his practice of digging things up to insane depths. He has been a patient teacher, an ever supportive friend, and a guide in many ways of life. I extend my sincerest gratitude to Prof. Bimal Roy who has been providing relentless support in driving forward the research on Cryptology happening in India and ISI Kolkata becoming its largest hub. I shall be grateful to Prof. Rana Barua and Dr. Mridul Nandi for their courses and talks that shaped my understanding of Cryptology in many ways. Rana-da's humble ways and incredible capability of abstraction and Mridul-da's emphasis on details of concepts are things I would love to inculcate. I have also learnt many aspects of the subject from Prof. Subhamoy Maitra. I adore his capability to portray difficult concepts in a very lucid manner. I would like to thank Subhamoy-da for his support during my years at ISI. Dr. Sanjit Chatterjee provided me the opportunity for a short academic visit to IISc. During the three weeks I spent at IISc, I underwent intense reading and had very fruitful i discussions with Sanjit-da. I would love to pursue those directions of research in near future. I would also like to thank Dr. Soumitra Sanadhyay, Dr. Goutam Paul, Dr. Sushmita Ruj, Dr. Sumanta Sarkar for the useful discussions I have had with them during the course of my PhD. Some people are so much a part and parcel of one's life that it becomes hard to separate out their contributions. Somindu C. R. and Subhabrata Samajder are two such people. We have been friends since our M. Tech. days and their continuous support has enabled me keep my chin up even during the most difficult times. My return to academics is largely contributed to two individuals - Srimanta Bhattacharya and Dinesh Layek. They were my colleagues at my workplace in Kolkata who inspired me to pursue higher studies. I will always be thankful to them that they found me worthy of their advice. Having seniors like Dr. Rishiraj Bhattacharya and Dr. Sumit Pandey has been a privilege all through. I got one of my first insights of Cryptology from Sumit-da. His unending support and helping nature has earned him reverence from all his friends and juniors including me. Rishi-da has come up with crucial advices at important junctures of my ISI life. Starting from the first day we sat on the football ground together to this day, he has always pushed me ahead and helped me take longer strides. Having friends like Avik Chakraborty, Binanda Sengupta, Indranil Ghosh Ray, Nilanjan Dutta, Raju Maiti and Tapas Pandit at one's workplace makes life very enjoyable. A few words with friends like Dr. Sourav Sengupta, Dr. Santanu Sarkar, Kaushik Chakraborty, Mrinal Nandi, Samiran Bag, Satrajit Ghosh, Shashank Singh and Subhadeep Banik feels refreshing. Dr. Ashish Coudhury and Dr. Arpita Patra have visited ISI on many occasions. Knowing them has been a pleasure all along. During my travel to the Seventh International Workshop on Coding and Cryptography, Paris in April 2011, Ashish-da ensured that I had very little to worry about. I would like to thank the Cryptology Research Society of India for all its support. A special thanks to Amitabha Sinha for his tireless cooperation in making life at ISI very smooth. I am thankful to the Director's Office, the Dean's Office, the ASU Office and other administrative offices at ISI for their cooperation all through. Dr. Mandar Mitra is one of those teachers in ISI who have influenced me most. His technical soundness was just the first of the numerous impressions he has left on me. His ii eloquence and depth of knowledge made me enjoy his classes to the brim. But above all, I would be ever indebted to him for being a living personification of humility and modesty in my life. Prof. Sandip Das is another such teacher. I have seen no one try harder to get the best out of even the most inattentive student as Sandip-da used to. His untiring efforts and dedication as a teacher would be a model to follow. I have been extremely lucky to get teachers like Prof. Aditya Bagchi, Prof. Amitabha Bandopadhyay, Prof. Bhabani P. Sinha, Prof. Bhargab B. Bhattacharya, Prof. Krishnendu Mukhopadhyay, Prof. Subhash Nandy, Dr. Arijit Bishnu, Dr. Pinakpani Pal and Dr. Utpal Garain. Although I did not get an opportunity to attend the classes of Prof. Bhabotosh Chanda, my first academic tryst with ISI was due to him. During my graduation, I thoroughly enjoyed doing a summer training at his lab. It was a pleasure having academic discussions with him. I would like to extend a special note of thanks to Prof. Sushmita Sur Kolay and Nandakumar Narayanmangalam for helping me get an internship opportunity at ARM during my M. Tech. It was there I had my first practical experience of doing research work. I have had pleasing associations with quite a few other faculty members of ISI. Prof. Anup Diwanji, Prof. Indraneel Dasgupta, Prof. Mousumi Bose, Prof. Pradipta Bandopadhyay, Prof. Smarajit Bose, Prof. Sumitra Purkayastha, Prof. Tapas Samanta, Dr. Ansuman Baner- jee, Dr. Atanu Ghosh, Dr. Diganta Mukherjee, Dr. Indranil Mukhopadhyay, Dr. Samarjit Das, Dr. Sourabh Ghosh and Dr. Swagatam Das are amongst them. I would like to thank ISI, its faculty members and other staff, students, research scholars and others for providing and maintaining an amicable environment for studies and research. Talking of ISI and the time I spent here, an absolutely inseparable thing would be the friends I have made here. It all started on the days during admission to M. Tech. and then during the first few classes. Amit Tripathi, Ayyappadas A. M., Dr. Aritra Banik, Dr. Chiranjit Chakraborty, Dr. Sandeep Kumar Dey, Dr. Kalikinkar Mandal, Dr. Nargis Pervin, Dr. Pulak Purkait, Mrinmoy Ghorai, Rajnish Kumar, Santanu Bhowmick, Swarup Chattopadhyay and all other M. Tech. batch-mates, seniors and juniors were an integral part in shaping up my life then on. From group-study sessions to the Bonhooghly excursions to the most adventurous campus endeavors - we have been accomplices in everything. Being part of the numerous extra-curriculars especially our annual cultural event \All-Go-Rhythm" (a part of which was the play \Bheem Badh") was one of the most memorable times at ISI. I have spent hours at a stretch at the research scholars' hostel sharing very memorable times with Dr. Debasmita Basu, Dr. Navonil De Sarkar, Dr. Sayantan Dutta, Dr. Srikanta iii Kundu and Debojyoti Mazumdar. I have had an absolutely enjoyable hostel life of more than five years, that has endowed me with very dear friends. Some of them are Aleya Bose, Amiya Bhowmick, Anindita Chatterjee, Apurba Das, Arnab Hazra, Arvind Nam- biar, Bidesh Das, Biman Chakraborty, Bipul Islam, Chintan Parmar, Debanjan Majumdar, Dr. Abhijit Mandal, Dr. Aparajita Bakshi, Dr. Buddhananda Banerjee, Dr. Kaushik Kundu, Dr. Kushal Banik Choudhury, Dr. Minati De, Dr. Prosenjit Das, Dr. Rajat Subhra Hazra, Dr. Rituparna Basak, Dr. Sabyasachi Mukhopadhyay, Dr. Shamsher Singh, Dr. Sourav Rana, Dr. Sriparna Ganguly, Dr. Subhendu Chakraborty, Dr. Suchismita Roy, Dr. Sudip Samanta, Dr. Sutripta Sarkar, Dr. Trishita Ray Barman, Gopakumar Achuthankutty, Hi- rak Sarkar, Kavita Suresh Parab, Keya Dutta, Koustav Sarkar, Mahamitra Das, Mannu Dwivedi, Manusree Mahato, Minerva Mukhopadhyay, Mithun Bhowmik, Narayan Rakshit, Parikshit De, Paromita Dubey, Pramita Bagchi, Prasenjit Ghosh, Priyam Biswas, Rajashree Bhattacharyya, Reshmi Mitra, Ritwik Bhattacharya, Roshni Roy, Ruchira Biswas, Sandip Sarkar, Sayan Roy, Sebanti Sengupta, Sedigheh Mirzaei Salehabadi, Shivani Santosh, Som- nath Ghatak, Sourav Kumar Sasmal, Suman Sarkar, Tanmay Das, Tomojoy Ghosh and Tridip Sardar.
Recommended publications
  • A Traitor Tracing Scheme Based on RSA for Fast Decryption

    A Traitor Tracing Scheme Based on RSA for Fast Decryption

    A Traitor Tracing Scheme Based on RSA for Fast Decryption John Patrick McGregor, Yiqun Lisa Yin, and Ruby B. Lee Princeton Architecture Laboratory for Multimedia and Security (PALMS) Department of Electrical Engineering Princeton University {mcgregor,yyin,rblee}@princeton.edu Abstract. We describe a fully k-resilient traitor tracing scheme that uti- lizes RSA as a secret-key rather than public-key cryptosystem. Traitor tracing schemes deter piracy in broadcast encryption systems by enabling the identification of authorized users known as traitors that contribute to unauthorized pirate decoders. In the proposed scheme, upon the confis- cation of a pirate decoder created by a collusion of k or fewer authorized users, contributing traitors can be identified with certainty. Also, the scheme prevents innocent users from being framed as traitors. The pro- posed scheme improves upon the decryption efficiency of past traitor tracing proposals. Each authorized user needs to store only a single de- cryption key, and decryption primarily consists of a single modular expo- nentiation operation. In addition, unlike previous traitor tracing schemes, the proposed scheme employs the widely deployed RSA algorithm. 1 Introduction Broadcast encryption is beneficial in scenarios where a content provider wishes to securely distribute the same information to many users or subscribers. The broadcast content is protected with encryption, and only legitimate users should possess the information (e.g., decryption keys) necessary to access the content. These keys can be embedded in software or in tamper-resistant hardware devices such as smart cards. Current tamper-resistant hardware is vulnerable to a variety of attacks [1], however. Furthermore, truly tamper-resistant software, which includes programs that resist unauthorized tampering or inspection of code and data, has yet to be developed.
  • Channel Switching-Triggered Charging for Pay-TV Over IPTV

    Channel Switching-Triggered Charging for Pay-TV Over IPTV

    Channel Switching-Triggered Charging for Pay-TV over IPTV vom Fachbereich Informatik der Technischen Universitat¨ Darmstadt genehmigte Dissertation zur Erlangung des akademischen Grades eines Doktor-Ingenieurs (Dr.-Ing.) von Dipl.-Inform. Tolga Arul geboren in Frankfurt am Main, Deutschland Referenten der Arbeit: Prof. Dr. Sorin A. Huss Technische Universitat¨ Darmstadt Asst. Prof. Dr. Abdulhadi Shoufan Khalifa University Abu Dhabi Prof. Dr. Stefan Katzenbeisser Technische Universitat¨ Darmstadt Tag der Einreichung: 18.08.2016 Tag der mundlichen¨ Prufung:¨ 06.10.2016 Darmstadter¨ Dissertation D 17 Darmstadt 2017 EHRENWÖRTLICHE ERKLÄRUNG Hiermit versichere ich, die vorliegende Arbeit ohne Hilfe Dritter und nur mit den ange- gebenen Quellen und Hilfsmitteln angefertigt zu haben. Alle Stellen, die aus den Quellen entnommen wurden, sind als solche kenntlich gemacht worden. Diese Arbeit hat in glei- cher oder ahnlicher¨ Form noch keiner Prufungsbeh¨ orde¨ vorgelegen. Darmstadt, 18. August 2016 Tolga Arul CHANNEL SWITCHING-TRIGGERED CHARGING FOR PAY-TV OVER IPTV To my family CONTENTS List of Figures vii List of Tables xi Acknowledgments xv Acronyms xvii 1 Introduction1 1.1 Context2 1.1.1 Pricing for Information Goods4 1.1.2 Charging Models for Pay-TV7 1.2 Short-Interval Charging 10 1.2.1 Consumer Opportunities 10 1.2.2 Consumer Challenges 11 1.2.3 Network Operator Opportunities 12 1.2.4 Network Operator Challenges 14 1.3 Objectives and Organization 15 2 Prospects 19 2.1 Market Participants 20 2.2 Market Background 21 2.3 Consumer Perspective
  • Telecommunikation Satellites: the Actual Situation and Potential Future Developments

    Telecommunikation Satellites: the Actual Situation and Potential Future Developments

    Telecommunikation Satellites: The Actual Situation and Potential Future Developments Dr. Manfred Wittig Head of Multimedia Systems Section D-APP/TSM ESTEC NL 2200 AG Noordwijk [email protected] March 2003 Commercial Satellite Contracts 25 20 15 Europe US 10 5 0 1995 1996 1997 1998 1999 2000 2001 2002 2003 European Average 5 Satellites/Year US Average 18 Satellites/Year Estimation of cumulative value chain for the Global commercial market 1998-2007 in BEuro 35 27 100% 135 90% 80% 225 Spacecraft Manufacturing 70% Launch 60% Operations Ground Segment 50% Services 40% 365 30% 20% 10% 0% 1 Consolidated Turnover of European Industry Commercial Telecom Satellite Orders 2000 30 2001 25 2002 3 (7) Firm Commercial Telecom Satellite Orders in 2002 Manufacturer Customer Satellite Astrium Hispasat SA Amazonas (Spain) Boeing Thuraya Satellite Thuraya 3 Telecommunications Co (U.A.E.) Orbital Science PT Telekommunikasi Telkom-2 Indonesia Hangar Queens or White Tails Orders in 2002 for Bargain Prices of already contracted Satellites Manufacturer Customer Satellite Alcatel Space New Indian Operator Agrani (India) Alcatel Space Eutelsat W5 (France) (1998 completed) Astrium Hellas-Sat Hellas Sat Consortium Ltd. (Greece-Cyprus) Commercial Telecom Satellite Orders in 2003 Manufacturer Customer Satellite Astrium Telesat Anik F1R 4.2.2003 (Canada) Planned Commercial Telecom Satellite Orders in 2003 SES GLOBAL Three RFQ’s: SES Americom ASTRA 1L ASTRA 1K cancelled four orders with Alcatel Space in 2001 INTELSAT Launched five satellites in the last 13 month average fleet age: 11 Years of remaining life PanAmSat No orders expected Concentration on cash flow generation Eutelsat HB 7A HB 8 expected at the end of 2003 Telesat Ordered Anik F1R from Astrium Planned Commercial Telecom Satellite Orders in 2003 Arabsat & are expected to replace Spacebus 300 Shin Satellite (solar-array steering problems) Korea Telecom Negotiation with Alcatel Space for Koreasat Binariang Sat.
  • DRM) Technology in Contemporary Copyright

    DRM) Technology in Contemporary Copyright

    The Role of Digital Rights Management (DRM) Technology in Contemporary Copyright Joseph Straus Munich International Forum on the Centennial of Chinese Copyright Legislation Renmin University of China, Beijing October 15, 2010 © J. Straus 2010 -1- Points to Consider • Copyright & technology – two old companions – dialectic relationship • Technology promoter of (re)production and distribution of works & challenge of copyright • Digitization – new quantitative & qualitative challenge • Legal & technical response • Where is the right balance of interests: creators & publishers v. users, hardware manufacturers, etc. → social progress? © J. Straus 2010 -2- Copyright & Technology – Two Old Companions China, the Technological Frontrunner • 105 AD - Lun Cai invents paper manufacturing technique • 1041 AD – Sheng Bi invents movable type printing • No legal impact – due to social/intellectual environment [no revolution] and due fragmented to agricultural economy [Chao Xu] © J. Straus 2010 -3- Copyright & Technology – Two Old Companions Europe – the Late(r) Commer • 1439 – Johannes Gutenberg invents movable type printing • 1469 – Johann von Speyer granted printing privilege by the city of Venice • Etching technique (copper engraving) invented – privileges for reproduction granted (Albrecht Dürer) • 15th-17th Century – numerous such privileges granted in Europe Social Revolution (Renaissance, humanism, reformation) & technology & market → protection against copying → printers & publishers, i.e. industry prime beneficiary • Idea of intellectual property
  • UNITED STATES SECURITIES and EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) [X] ANNUAL REPORT PURSUANT to SECT

    UNITED STATES SECURITIES and EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) [X] ANNUAL REPORT PURSUANT to SECT

    UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 1998 OR [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from _______________ to ________________. Commission file number: 0-26176 EchoStar Communications Corporation (Exact name of registrant as specified in its charter) Nevada 88-0336997 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 5701 S. Santa Fe Littleton, Colorado 80120 (Address of principal executive offices) (Zip Code) Registrant’s telephone number, including area code: (303) 723-1000 Securities registered pursuant to Section 12(b) of the Act: None Securities registered pursuant to Section 12(g) of the Act: Class A Common Stock, $0.01 par value 6 ¾% Series C Cumulative Convertible Preferred Stock Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes [X] No [ ] Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of Registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.
  • Eutelsat S.A. €300,000,000 3.125% Bonds Due 2022 Issue Price: 99.148 Per Cent

    Eutelsat S.A. €300,000,000 3.125% Bonds Due 2022 Issue Price: 99.148 Per Cent

    EUTELSAT S.A. €300,000,000 3.125% BONDS DUE 2022 ISSUE PRICE: 99.148 PER CENT The €300,000,000 aggregate principal amount 3.125% per cent. bonds due 10 October 2022 (the Bonds) of Eutelsat S.A. (the Issuer) will be issued outside the Republic of France on 9 October 2012 (the Bond Issue). Each Bond will bear interest on its principal amount at a fixed rate of 3.125 percent. per annum from (and including) 9 October 2012 (the Issue Date) to (but excluding) 10 October 2022, payable in Euro annually in arrears on 10 October in each year and commencing on 10 October 2013, as further described in "Terms and Conditions of the Bonds - Interest"). Unless previously redeemed or purchased and cancelled in accordance with the terms and conditions of the Bonds, the Bonds will be redeemed at their principal amount on 10 October 2022 (the Maturity Date). The Issuer may at its option, and in certain circumstances shall, redeem all (but not part) of the Bonds at par plus any accrued and unpaid interest upon the occurrence of certain tax changes as further described in the section "Terms and Conditions of the Bonds - Redemption and Purchase - Redemption for tax reasons". The Bondholders may under certain conditions request the Issuer to redeem all or part of the Bonds following the occurrence of certain events triggering a downgrading of the Bonds as further described in the Section "Terms and Conditions of the Bonds — Redemption and Purchase - Redemption following a Change of Control". The obligations of the Issuer in respect of principal and interest payable under the Bonds constitute direct, unconditional, unsecured and unsubordinated obligations of the Issuer and shall at all times rank pari passu among themselves and pari passu with all other present or future direct, unconditional, unsecured and unsubordinated obligations of the Issuer, as further described in "Terms and Conditions of the Bonds - Status".
  • Donald Best Wikipedia Text-Only Version

    Donald Best Wikipedia Text-Only Version

    This is Google's cache of http://en.wikipedia.org/wiki/Donald_best. It is a snapshot of the page as it appeared on 4 Jan 2010 12:00:57 GMT. The current page could have changed in the meantime. Learn more These search terms are highlighted: donald best wikipedia Text-only version Try Beta Log in / create account article discussion edit this page history Donald Best From Wikipedia, the free encyclopedia (Redirected from Donald best) This article is an orphan, as few or no other articles link to it. Please introduce links to this page navigation from related articles; suggestions are available. (February 2009) Main page Contents Donald Best is a former Detective Sergeant with the Toronto Police who is probably the most notable (or notorious) deep-cover satellite piracy Featured content investigator in Canada. Starting in the mid-1990s, he was the primary investigator in over a hundred anti-pirate decryption actions launched by Current events satellite television companies Bell ExpressVu (now called Bell TV) and DirecTV and smart card manufacturer NDS Group (Formerly News Datacom, Random article NDC). search His evidence was used in the precedent-setting Supreme Court of Canada case "Bell Express Vu Limited Partnership (Appellant) and Richard Rex, Can-Am Satellites et al (Respondent)"[1] Best's undercover methods have been extensively criticized in online postings and discussion forums by satellite dealers who have been the subject Go Search of his cases. His use of Anton Piller search warrants at dealers' homes has been a focus of complaints but the courts have never rejected any of his interaction searches.
  • American Broadcasting Company from Wikipedia, the Free Encyclopedia Jump To: Navigation, Search for the Australian TV Network, See Australian Broadcasting Corporation

    American Broadcasting Company from Wikipedia, the Free Encyclopedia Jump To: Navigation, Search for the Australian TV Network, See Australian Broadcasting Corporation

    Scholarship applications are invited for Wiki Conference India being held from 18- <="" 20 November, 2011 in Mumbai. Apply here. Last date for application is August 15, > 2011. American Broadcasting Company From Wikipedia, the free encyclopedia Jump to: navigation, search For the Australian TV network, see Australian Broadcasting Corporation. For the Philippine TV network, see Associated Broadcasting Company. For the former British ITV contractor, see Associated British Corporation. American Broadcasting Company (ABC) Radio Network Type Television Network "America's Branding Broadcasting Company" Country United States Availability National Slogan Start Here Owner Independent (divested from NBC, 1943–1953) United Paramount Theatres (1953– 1965) Independent (1965–1985) Capital Cities Communications (1985–1996) The Walt Disney Company (1997– present) Edward Noble Robert Iger Anne Sweeney Key people David Westin Paul Lee George Bodenheimer October 12, 1943 (Radio) Launch date April 19, 1948 (Television) Former NBC Blue names Network Picture 480i (16:9 SDTV) format 720p (HDTV) Official abc.go.com Website The American Broadcasting Company (ABC) is an American commercial broadcasting television network. Created in 1943 from the former NBC Blue radio network, ABC is owned by The Walt Disney Company and is part of Disney-ABC Television Group. Its first broadcast on television was in 1948. As one of the Big Three television networks, its programming has contributed to American popular culture. Corporate headquarters is in the Upper West Side of Manhattan in New York City,[1] while programming offices are in Burbank, California adjacent to the Walt Disney Studios and the corporate headquarters of The Walt Disney Company. The formal name of the operation is American Broadcasting Companies, Inc., and that name appears on copyright notices for its in-house network productions and on all official documents of the company, including paychecks and contracts.
  • RECE\VED Tio~ , 0 \992

    RECE\VED Tio~ , 0 \992

    DECTEC INTERNATIONAL INC. P.D. BOX 2275, 1 962 MILLS ROAD, SIDNEY, BRITISH COLUMBIA, CANADA VBL 3SB PHONE: (604) 655-4463 . ._.... FAX: (604) 655-3906 RECE\VED tiO~ , 0 \992 • COMMISSION ftDEkAL coMMUNICATIONS y OFF:"Ir.E OF THE SECRETAR October 8, 1991 RECEIVED OCT 15 IY9, Ms Donna Searcy Secretary, Federal Communications Commission FCC M/' 1919 M Street ,.,IL BRANCH Washington, DC 20515 Dear Ms. Searcy, This letter is presented in support of a filing submitted to the Commission by the Consumer Satellite Coalition on July 1, 1991. The document filed by the CSC requested a public hearing/inquiry on the monopolistic business practices of General Instrument Corporation and the distribution and sale to consumers by the General Instrument division of Forstmann Little Corporation of a defective descrambling product which is used by consumers and cable operators to unscramble programming delivered over satellite. As a research and development firm which has spent the past three years developing a universal scrambling system designed to run multiple encryption and decryption processes through one single decoder, we submit that General Instrument has deceived the pUblic, the governments of the united States and Canada, television programmers, hollywood producers, satellite and consumer electronic retailers, and the manufacturers of Integrated Receiver Descramblers in the sales and upgrade programs associated with its videocipher II scrambling system, (exhibit A). Through our work as a well-respected research and development company who has been
  • Tr 101 532 V1.1.1 (2015-02)

    Tr 101 532 V1.1.1 (2015-02)

    ETSI TR 101 532 V1.1.1 (2015-02) TECHNICAL REPORT End-to-End Network Architectures (E2NA); Mechanisms addressing interoperability of multimedia service and content distribution and consumption with respect to CA/DRM solutions 2 ETSI TR 101 532 V1.1.1 (2015-02) Reference DTR/E2NA-00004-CA-DRM-interop Keywords CA, DRM, interoperability, terminal ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice The present document can be downloaded from: http://www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: https://portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI.
  • Final Draft ETSI EN 300 000 V0.0.0

    Final Draft ETSI EN 300 000 V0.0.0

    Digital Video Broadcasting (DVB); Specification for Service Information (SI) in DVB systems DVB Document A038 December 2017 This page is left intentionally blank 3 Final draft ETSI EN 300 468 V1.16.1 (2017-06) Contents Intellectual Property Rights ................................................................................................................................ 8 Foreword............................................................................................................................................................. 8 Modal verbs terminology ................................................................................................................................... 8 1 Scope ........................................................................................................................................................ 9 2 References ................................................................................................................................................ 9 2.1 Normative references ......................................................................................................................................... 9 2.2 Informative references ..................................................................................................................................... 12 3 Definitions and abbreviations ................................................................................................................. 12 3.1 Definitions ......................................................................................................................................................
  • Copyright and DRM

    Copyright and DRM

    CHAPTER 22 Copyright and DRM The DeCSS case is almost certainly a harbinger of what I would consider to be the defining battle of censorship in cyberspace. In my opinion, this will not be fought over pornography, neo-Nazism, bomb design, blasphemy, or political dissent. Instead, the Armageddon of digital control, the real death match between the Party of the Past and Party of the Future, will be fought over copyright. — John Perry Barlow Be very glad that your PC is insecure — it means that after you buy it, you can break into it and install whatever software you want. What YOU want, not what Sony or Warner or AOL wants. — John Gilmore 22.1 Introduction Copyright, and digital rights management (DRM), have been among the most contentious issues of the digital age. At the political level, there is the conflict alluded to by Barlow in the above quotation. The control of information has been near the centre of government concerns since before William Tyndale (one of the founders of the Cambridge University Press) was burned at the stake for printing the Bible in English. The sensitivity continued through the estab- lishment of modern copyright law starting with the Statute of Anne in 1709, through the eighteenth century battles over press censorship, to the Enlight- enment and the framing of the U.S. Constitution. The link between copyright and censorship is obscured by technology from time to time, but has a habit of reappearing. Copyright mechanisms exist to keep information out of the hands of people who haven’t paid for it, while censors keep information out of the hands of people who satisfy some other criterion.