USRE41919E1 - Rapid decryption of data by key synchronization and indexing - Google Patents
Rapid decryption of data by key synchronization and indexing Download PDFInfo
- Publication number
- USRE41919E1 USRE41919E1 US12/425,314 US42531409A USRE41919E US RE41919 E1 USRE41919 E1 US RE41919E1 US 42531409 A US42531409 A US 42531409A US RE41919 E USRE41919 E US RE41919E
- Authority
- US
- United States
- Prior art keywords
- seed
- index number
- cyphered
- flavor
- numbers
- 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 - Fee Related, expires
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Classifications
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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
- H04L9/12—Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
- H04H60/23—Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication, key distribution
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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
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
- H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
- H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/26613—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing keys in general
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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
- H04N21/45—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
- H04N21/454—Content or additional data filtering, e.g. blocking advertisements
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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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
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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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
- H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
- H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
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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
- H04N7/167—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
- H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
- H04H40/90—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving
-
- 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
- H04L2209/12—Details relating to cryptographic hardware or logic circuitry
-
- 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
- H04L2209/601—Broadcast encryption
Abstract
Description
Claims (65)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/425,314 USRE41919E1 (en) | 2003-06-25 | 2009-04-16 | Rapid decryption of data by key synchronization and indexing |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US48223503P | 2003-06-25 | 2003-06-25 | |
US10/640,118 US7206411B2 (en) | 2003-06-25 | 2003-08-13 | Rapid decryption of data by key synchronization and indexing |
US12/425,314 USRE41919E1 (en) | 2003-06-25 | 2009-04-16 | Rapid decryption of data by key synchronization and indexing |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/640,118 Reissue US7206411B2 (en) | 2003-06-25 | 2003-08-13 | Rapid decryption of data by key synchronization and indexing |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE41919E1 true USRE41919E1 (en) | 2010-11-09 |
Family
ID=43035027
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/640,118 Ceased US7206411B2 (en) | 2003-06-25 | 2003-08-13 | Rapid decryption of data by key synchronization and indexing |
US12/425,314 Expired - Fee Related USRE41919E1 (en) | 2003-06-25 | 2009-04-16 | Rapid decryption of data by key synchronization and indexing |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/640,118 Ceased US7206411B2 (en) | 2003-06-25 | 2003-08-13 | Rapid decryption of data by key synchronization and indexing |
Country Status (1)
Country | Link |
---|---|
US (2) | US7206411B2 (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
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US7471795B2 (en) * | 2003-09-12 | 2008-12-30 | Victor Company Of Japan, Ltd. | Information transmission system |
US8619981B2 (en) * | 2005-05-12 | 2013-12-31 | Jds Uniphase Corporation | Systems and methods for producing pseudo-random number distributions in devices having limited processing and storage capabilities |
US8144868B2 (en) | 2005-05-25 | 2012-03-27 | Zenith Electronics Llc | Encryption/decryption of program data but not PSI data |
US8189786B2 (en) * | 2005-05-25 | 2012-05-29 | Zenith Electronics Llc | Encryption system |
EP2219376B1 (en) * | 2005-05-25 | 2012-10-24 | Zenith Electronics LLC | Encryption/decryption of program data but not PSI data |
WO2007026287A1 (en) * | 2005-08-30 | 2007-03-08 | Koninklijke Philips Electronics N.V. | Method and device for generating random number generator seeds |
US20070151074A1 (en) * | 2006-01-03 | 2007-07-05 | Whiteman Marvin E Jr | Power tool handle |
EP1863285A1 (en) * | 2006-05-29 | 2007-12-05 | Nagra France Sas | Method for processing entitlement control messages |
US20070281610A1 (en) * | 2006-06-05 | 2007-12-06 | The Directv Group, Inc. | Method and system for providing call-backs from a mobile receiving device |
US20070280477A1 (en) * | 2006-06-05 | 2007-12-06 | The Directv Group, Inc. | Method and system for providing conditional access authorizations to a mobile receiving device |
US8875206B2 (en) * | 2006-11-22 | 2014-10-28 | The Directv Group, Inc. | Method and system for securely providing content to a portable media player device |
US8107626B2 (en) * | 2006-11-22 | 2012-01-31 | The Directv Group, Inc. | Method and system for enabling transfer of content between a storage device and a portable media player device |
US9143734B2 (en) * | 2006-11-22 | 2015-09-22 | The Directv Group, Inc. | Method and system for providing content to a portable media player device and maintaining licensing rights |
US8175514B2 (en) * | 2007-01-22 | 2012-05-08 | The Directv Group, Inc. | Method and apparatus for providing preauthorization for a mobile receiving device to access wireless networks |
US20100169639A1 (en) * | 2007-03-15 | 2010-07-01 | William Jeffries | Method for managing a globally accessible operational data warehouse system with improved security and consumer response |
FR2941114B1 (en) | 2009-01-13 | 2011-07-01 | Viaccess Sa | METHOD AND MODULE FOR RENEWING THE CODE OF A CRYPTOGRAPHIC ALGORITHM, METHOD AND MODULE FOR GENERATING A SEED, SECURITY PROCESSOR, AND RECORDING MEDIUM FOR SAID METHODS |
US8811615B2 (en) * | 2009-08-05 | 2014-08-19 | Verayo, Inc. | Index-based coding with a pseudo-random source |
CN103838753B (en) * | 2012-11-23 | 2018-04-27 | 腾讯科技(北京)有限公司 | A kind of storage of redemption code, verification method and device |
US9887837B2 (en) | 2013-10-31 | 2018-02-06 | Verimatrix, Inc. | System and method for synchronized key derivation across multiple conditional access servers |
EP3324640A1 (en) * | 2016-11-16 | 2018-05-23 | Thomson Licensing | Method for descrambling multimedia data in a receiver and corresponding device |
EP4095704B1 (en) * | 2021-05-26 | 2023-08-23 | STMicroelectronics Application GmbH | Processing system, related integrated circuit, device and method |
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