US Patent No: 7,925,898

Number of patents in Portfolio can not be more than 2000

Systems and methods using cryptography to protect secure computing environments

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Abstract

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Secure computation environments are protected from bogus or rogue load modules, executables and other data elements through use of digital signatures, seals and certificates issued by a verifying authority. A verifying authority—which may be a trusted independent third party—tests the load modules or other executables to verify that their corresponding specifications are accurate and complete, and then digitally signs the load module or other executable based on tamper resistance work factor classification. Secure computation environments with different tamper resistance work factors use different verification digital signature authentication techniques (e.g., different signature algorithms and/or signature verification keys)—allowing one tamper resistance work factor environment to protect itself against load modules from another, different tamper resistance work factor environment. Several dissimilar digital signature algorithms may be used to reduce vulnerability from algorithm compromise, and subsets of multiple digital signatures may be used to reduce the scope of any specific compromise.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
INTERTRUST TECHNOLOGIES CORPORATIONSUNNYVALE, CA257

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shear, Victor H Bethesda, US 147 20940
Sibert, W Olin Lexington, US 92 6285
Van, Wie David M Sunnyvale, US 145 19473

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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6,449,367 Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels 320 2001
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6,640,304 Systems and methods for secure transaction management and electronic rights protection 280 2002
2002/0152,173 System and methods for managing the distribution of electronic content 147 2002
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7,110,983 Methods for matching, selecting, narrowcasting, and/or classifying based on rights management and/or other information 78 2002
2003/0041,239 Systems and methods using cryptography to protect secure computing environments 75 2002
2004/0133,793 Systems and methods for secure transaction management and electronic rights protection 138 2003
7,100,199 Systems and methods for secure transaction management and electronic rights protection 86 2003
2004/0107,356 Methods and apparatus for persistent control and protection of content 153 2003
2004/0123,129 Trusted infrastructure support systems, methods and techniques for secure electronic commerce transaction and rights management 117 2003
2005/0027,871 Interoperable systems and methods for peer-to-peer service orchestration 184 2004
6,961,854 Methods and systems for encoding and protecting data using digital signature and watermarking techniques 71 2004
2005/0060,560 Systems and methods for protecting data secrecy and integrity 65 2004
7,058,805 Systems and methods for protecting data secrecy and integrity 17 2004
7,107,452 Methods and systems for encoding and protecting data using digital signature and watermarking techniques 41 2005
2006/0248,016 Trusted infrastructure support systems, methods and techniques for secure electronic commerce, electronic transactions, commerce process control and automation, distributed computing, and rights management 34 2006
7,581,092 Systems and methods using cryptography to protect secure computing environments 11 2007
2008/0077,531 Systems and methods using cryptography to protect secure computing environments 7 2007
 
Applied Spectrum Technologies, Inc. (1)
4,672,605 Data and voice communications system 424 1984
 
LEGERITY, INC. (1)
5,199,074 Encryption system 41 1992
 
NATIONAL SEMICONDUCTOR CORPORATION (2)
4,975,878 Programmable memory data protection scheme 88 1989
5,533,123 Programmable distributed personal security 257 1994
 
FLEHR HOHBACH TEST ALBRITTON & HERBERT LLP (1)
5,758,152 Method and apparatus for the generation and manipulation of data structures 104 1990
 
KENT RIDGE DIGITAL LABS (1)
5,499,298 Controlled dissemination of digital information 203 1994
 
MACROVISION CORPORATION (1)
5,315,448 Copy protection for hybrid digital video tape recording and unprotected source material 232 1993
 
WESTINGHOUSE ELECTRIC CORPORATION (1)
4,649,515 Methods and apparatus for system fault diagnosis and control 273 1986
 
NCR CORPORATION (2)
4,691,350 Security device for stored sensitive data 115 1986
5,014,234 System with software usage timer and counter for allowing limited use but preventing continued unauthorized use of protected software 350 1986
 
Corban International, Ltd. (2)
4,446,519 Method and apparatus for providing security for computer software 290 1981
4,685,055 Method and system for controlling use of protected software 154 1985
 
SMITH ENGINEERING, A SOLE PROPRIETORSHIP (1)
4,462,076 Video game cartridge recognition and security system 243 1982
 
DALLAS SEMICONDUCTOR CORPORATION (3)
4,319,079 Crypto microprocessor using block cipher 276 1980
4,465,901 Crypto microprocessor that executes enciphered programs 248 1981
4,433,207 Cryptographic decoder for computer programs 268 1981
 
THORN EMI PLC (1)
5,079,648 Marked recorded signals 198 1989
 
Securities Dynamics Technologies, Inc. (1)
5,237,614 Integrated network security system 391 1991
 
COMSAT CORPORATION (1)
5,070,400 Pay-tv time purchase scheme 40 1989
 
UNISYS CAD/CAM (1)
4,683,968 System for preventing software piracy employing multi-encrypted keys and single decryption circuit modules 80 1985
 
ACTIVISION PUBLISHING, INC. (1)
5,563,946 Method and apparatus for enabling trial period use of software products: method and apparatus for passing encrypted files between data processing systems 328 1994
 
INTELLECTUAL VENTURES I LLC (2)
5,603,031 System and method for distributed computation based upon the movement, execution, and interaction of processes in a network 270 1993
6,016,393 System and method for distributed computation based upon the movement, execution, and interaction of processes in a network 94 1997
 
The United States of America as represented by the Secretary of the Army (1)
5,422,645 Delayed laser retroreflector pulse technique and system 19 1994
 
QMS, INC. (1)
4,888,798 Modular software security 233 1986
 
AMERIPRISE FINANCIAL, INC. (1)
5,819,263 Financial planning system incorporating relationship and group management 219 1996
 
DEUTSCHE THOMSON-BRANDT GMBH (1)
4,907,269 Process and circuit layout for the recognition of an identification sign (signum) contained in a video signal 20 1988
 
SECURE COMPUTING TECHNOLOGY CORPORATION, A MD CORP. (1)
5,276,735 Data enclave and trusted path system 384 1992
 
COPYRIGHT CLEARANCE CENTER, INC. (1)
5,991,876 Electronic rights management and authorization system 255 1996
 
SGS-THOMSON MICROELECTRONICS, INC. (1)
4,609,985 Microcomputer with severable ROM 39 1982
 
HARMONY LOGIC SYSTEMS LLC (3)
5,473,687 Method for retrieving secure information from a database 169 1993
5,394,469 Method and apparatus for retrieving secure information from mass storage media 257 1994
5,592,549 Method and apparatus for retrieving selected information from a secure information source 141 1995
 
FINANCIAL NEW NETWORK, INC. (1)
4,677,434 Access control system for transmitting data from a central station to a plurality of receiving stations and method therefor 276 1984
 
UNICATE B.V. (1)
5,354,097 Security of objects or documents 81 1992
 
WISTRON CORPORATION (1)
6,983,371 Super-distribution of protected digital content 159 2000
 
VASCO CORPORATION, 1919 S. HIGHLAND, SUITE 118-C, LOMBARD, ILLINOIS 60148, A UTAH CORP. (2)
4,599,489 Solid state key for controlling access to computer software 138 1984
4,609,777 Solid state key for controlling access to computer software 98 1985
 
Soverain Software LLC (1)
5,715,314 Network sales system 1319 1994
 
SAFENET, INC. (1)
5,337,357 Method of software distribution protection 308 1993
 
STEVEN M. HOFFBERG 2004-1 GRAT (1)
2002/0151,992 Media recording device with packet data interface 52 2002
 
SIGHTSOUND.COM INCORPORATED (2)
5,191,573 Method for transmitting a desired digital video or audio signal 354 1990
5,966,440 System and method for transmitting desired digital video or digital audio signals 137 1995
 
Software Concepts, Inc. (1)
4,740,890 Software protection system with trial period usage code and unlimited use unlocking code both recorded on program storage media 394 1983
 
Electronic Publishing Resources, Inc. (4)
4,827,508 Database usage metering and protection system and method 1003 1985
4,977,594 Database usage metering and protection system and method 807 1989
5,050,213 Database usage metering and protection system and method 694 1990
5,410,598 Database usage metering and protection system and method 720 1994
 
Electronic Signature Lock Corporation (1)
4,621,334 Personal identification apparatus 107 1983
 
Pitney Bowes Inc. (2)
5,113,518 Method and system for preventing unauthorized use of software 225 1988
5,022,080 Electronic notary 121 1990
 
HITACHI, LTD. (3)
4,434,464 Memory protection system for effecting alteration of protection information without intervention of control program 171 1981
5,051,932 Method and system for process control with complex inference mechanism 64 1989
2005/0204,105 Remote copy system 5 2004
 
SOFTWARE SECURITY, INC. (1)
4,562,306 Method and apparatus for protecting computer software utilizing an active coded hardware device 230 1983
 
Effective Security Systems, Inc. (1)
4,791,565 Apparatus for controlling the use of computer software 193 1984
 
Panafacom Limited (1)
4,701,846 Computer system capable of interruption using special protection code for write interruption region of memory device 63 1986
 
APPLE INC. (5)
5,050,212 Method and apparatus for verifying the integrity of a file stored separately from a computer 170 1990
5,537,526 Method and apparatus for processing a display document utilizing a system level document framework 225 1993
5,491,800 Object-oriented remote procedure call networking system 343 1993
5,553,282 Software project history database and method of operation 219 1994
5,638,504 System and method of processing documents with document proxies 140 1996
 
ASSA ABLOY AB (2)
5,457,747 Anti-fraud verification system using a data card 167 1994
5,420,927 Method for certifying public keys in a digital signature scheme 141 1994
 
SPEX TECHNOLOGIES, INC. (1)
5,457,746 System and method for access control for portable data storage media 424 1994
 
GOOGLE TECHNOLOGY HOLDINGS LLC (1)
5,678,170 Method and apparatus for monitoring and limiting distribution of data 64 1994
 
MONDEX INTERNATIONAL LIMITED (1)
5,440,634 Value transfer system 222 1993
 
KABUSHIKI KAISHA TOSHIBA (1)
5,485,622 Password processing system for computer 79 1992
 
INTER*ACT SYSTEMS, INCORPORATED (1)
5,373,440 Promotional game method and apparatus therefor 289 1992
 
RAYTHEON BBN TECHNOLOGIES CORP. (1)
5,319,735 Embedded signalling 640 1991
 
DIGITAL ON-DEMAND, INC. (1)
5,418,713 Apparatus and method for an on demand data delivery system for the preview, selection, retrieval and reproduction at a remote location of previously recorded or programmed materials 598 1993
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (38)
4,328,544 Electronic point-of-sale system using direct-access storage 85 1980
4,562,305 Software cryptographic apparatus and method 59 1982
4,577,289 Hardware key-on-disk system for copy-protecting magnetic storage media 213 1983
4,644,493 Implementing a shared higher level of privilege on personal computers for copy protection of software 206 1984
4,780,821 Method for multiple programs management within a network having a server computer and a plurality of remote computers 293 1986
4,817,140 Software protection system using a single-key cryptosystem, a hardware-based authorization system and a secure coprocessor 376 1986
5,146,575 Implementing privilege on microprocessor systems for use in software asset protection 117 1986
4,903,296 Implementing a shared higher level of privilege on personal computers for copy protection of software 115 1986
4,757,534 Code protection using cryptography 261 1987
4,930,073 Method to prevent use of incorrect program version in a computer system 155 1987
4,866,769 Hardware assist for protecting PC software 246 1987
4,953,209 Self-verifying receipt and acceptance system for electronically delivered data objects 286 1988
4,941,175 Tamper-resistant method for authorizing access to data between a host and a predetermined number of attached workstations 85 1989
5,027,397 Data protection by detection of intrusion into electronic assemblies 79 1989
5,109,413 Manipulating rights-to-execute in connection with a software copy protection mechanism 277 1989
5,201,047 Attribute-based classification and retrieval system 170 1989
5,263,157 Method and system for providing user access control within a distributed data processing system by the exchange of access control profiles 402 1990
5,263,158 Method and system for variable authority level user access control in a distributed data processing system having multiple resource manager 262 1990
5,263,165 System for providing user access control within a distributed data processing system having multiple resource managers 166 1990
5,119,493 System for recording at least one selected activity from a selected resource object within a distributed data processing system 76 1990
5,032,979 Distributed security auditing subsystem for an operating system 355 1990
5,287,407 Computer software protection 176 1991
5,367,621 Data processing method to provide a generalized link from a reference point in an on-line book to an arbitrary multimedia object which can be dynamically updated 262 1991
5,164,988 Method to establish and enforce a network cryptographic security policy in a public key cryptosystem 205 1991
5,265,164 Cryptographic facility environment backup/restore and replication in a public key cryptosystem 197 1991
5,276,901 System for controlling group access to objects using group access control folder and group identification as individual user 242 1991
5,301,231 User defined function facility 175 1992
5,319,705 Method and system for multimedia access control enablement 728 1992
5,535,322 Data processing system with improved work flow system and method 205 1992
5,497,491 System and method for importing and exporting data between an object oriented computing environment and an external computing environment 154 1993
5,365,587 Self modifying access code for altering capabilities 67 1993
5,644,686 Expert system and method employing hierarchical knowledge base, and interactive multimedia/hypermedia applications 180 1994
5,504,757 Method for selecting transmission speeds for transmitting data packets over a serial bus 157 1994
5,692,180 Object-oriented cell directory database for a distributed computing environment 179 1995
5,699,427 Method to deter document and intellectual property piracy through individualization 129 1995
5,745,678 Method and system for the secured distribution of multimedia titles 207 1997
5,956,408 Apparatus and method for secure distribution of data 179 1998
6,393,484 System and method for controlled access to shared-medium public and semi-public internet protocol (IP) networks 233 1999
 
NEWFREY LLC (1)
5,996,756 Yarn supply apparatus and clutch arrangement therefor 8 1998
 
AT&T IPM CORP. (1)
5,455,861 Secure telecommunications 135 1993
 
NATIONAL INSTRUMENTS CORPORATION (1)
6,102,965 System and method for providing client/server access to graphical programs 102 1997
 
CHECKFREE CORPORATION (1)
5,383,113 System and method for electronically providing customer services including payment of bills, financial analysis and loans 646 1991
 
FUJITSU LIMITED (3)
4,589,064 System for controlling key storage unit which controls access to main storage 175 1983
5,103,392 System for storing history of use of programs including user credit data and having access by the proprietor 201 1990
5,428,685 IC memory card and method of protecting data therein 89 1993
 
International Business Systems, Incorporated (1)
5,734,719 Digital information accessing, delivery and production system 445 1996
 
SECURE-TIME, INC., A CORP OF IDAHO (1)
4,700,296 Electronic access control system 129 1985
 
ROUND ROCK RESEARCH, LLC (1)
5,577,209 Apparatus and method for providing multi-level security for communication among computers and terminals on a network 285 1994
 
NATIONAL RURAL TELECOMMUNICATIONS COOPERATIVE (1)
4,893,248 Monitoring and reporting system for remote terminals 289 1987
 
TESTDRIVE CORPORATION (1)
5,341,429 Transformation of ephemeral material 411 1992
 
PANASONIC ELECTRIC WORKS CO., LTD. (1)
6,085,238 Virtual LAN system 447 1997
 
Champion Securities (1)
5,126,936 Goal-directed financial asset management system 501 1989
 
Key Logic, Inc. (1)
4,584,639 Computer security system 132 1983
 
FREESCALE SEMICONDUCTOR, INC. (1)
5,432,950 System for securing a data processing system and method of operation 97 1993
 
TITAN CORPORATION, THE (1)
4,712,238 Selective-subscription descrambling 247 1984
 
UP TWO, INC. (1)
5,640,546 Composition of systems of objects by interlocking coordination, projection, and distribution 143 1995
 
SofTel, Inc. (2)
5,388,211 Method and apparatus for remotely controlling and monitoring the use of computer software 327 1993
5,497,479 Method and apparatus for remotely controlling and monitoring the use of computer software 234 1995
 
ALPVISION S.A. (1)
5,524,933 Method for the marking of documents 142 1994
 
AT&T Bell Laboratories (1)
5,343,526 Method for establishing licensor changeable limits on software usage 68 1992
 
SEAGATE TECHNOLOGY LLC (1)
5,408,501 Data transfer system 33 1993
 
Kabushiki Kaisha Sega Enterprises (1)
5,371,792 CD-ROM disk and security check method for the same 181 1993
 
UNILOC LUXEMBOURG S.A. (1)
5,490,216 System for software registration 236 1993
 
MICROSOFT TECHNOLOGY LICENSING, LLC (10)
5,301,326 Method and system for controlling the execution of an application program 87 1991
5,432,928 Updating objects stored in a permanent container while preserving logical contiguity 49 1992
5,559,884 Method and system for generating and auditing a signature for a computer program 69 1994
5,655,077 Method and system for authenticating access to heterogeneous computing services 375 1994
5,802,590 Method and system for providing secure access to computer resources 124 1994
5,581,686 Method and system for in-place interaction with contained objects 262 1995
5,689,565 Cryptography system and method for providing cryptographic services for a computer application 201 1995
5,878,421 Information map 112 1995
5,978,484 System and method for safety distributing executable objects 200 1996
6,330,670 Digital rights management operating system 491 1999
 
GENERAL COMPUTER CORPORATION (1)
4,525,599 Software protection methods and apparatus 157 1982
 
Fujitsu Siemens Computers GmbH (1)
5,224,160 Process for securing and for checking the integrity of the secured programs 126 1992
 
Nova Biomedical Corporation (1)
4,975,647 Controlling machine operation with respect to consumable accessory units 201 1988
 
QUALCOMM INCORPORATED (1)
5,103,459 System and method for generating signal waveforms in a CDMA cellular telephone system 1642 1990
 
VERIZON PATENT AND LICENSING INC. (1)
4,919,545 Distributed security procedure for intelligent networks 170 1988
 
INTERACTIVE HOME SYSTEMS (1)
5,721,788 Method and system for digital image signatures 630 1992
 
RUNTIME INNOVATIONS LIMITED, 1.02 KELVIN CAMPUS, WEST OF SCOTLAND SCIENCE PARK, GLASGOW, G20 OSP, (1)
4,868,736 Code operated access control system for electronic data store 48 1987
 
ENTERASYS NETWORKS, INC. (1)
5,136,716 Session control in network for digital data processing system which supports multiple transfer protocols 165 1990
 
MATRA COMMUNICATION, SOCIETE ANONYME (1)
5,280,479 Device for insertion of digital packets in a transmission channel 74 1992
 
ROVI SOLUTIONS CORPORATION (1)
5,845,281 Method and system for managing a data object so as to comply with predetermined conditions for usage 385 1996
 
BRANDS, STEFAN, DR. (1)
5,696,827 Secure cryptographic methods for electronic transfer of information 97 1997
 
DIGITAL RIVER, INC. (1)
2005/0154,676 Electronic commerce system method for detecting fraud 17 2005
 
SURETY, LLC (1)
5,373,561 Method of extending the validity of a cryptographic certificate 230 1992
 
North American Philips Corporation (1)
4,442,486 Protected programmable apparatus 182 1981
 
National Information Utilities Corporation (1)
4,768,087 Education utility 264 1985
 
EASTMAN KODAK COMPANY (1)
5,206,951 Integration of data between typed objects by mutual, direct invocation between object managers corresponding to object types 263 1991
 
Tecsec, Inc. (3)
5,369,707 Secure network method and apparatus 200 1993
5,369,702 Distributed cryptographic object method 242 1993
5,432,851 Personal computer access control system 77 1993
 
E-CONTACT TECHNOLOGIES LLC (1)
5,347,579 Personal computer diary 198 1993
 
INTELLISYNC CORPORATION (1)
5,392,390 Method for mapping, translating, and dynamically reconciling data between disparate computer platforms 526 1992
 
LANRALD DATA MGMT. NV, LLC (1)
5,065,429 Method and apparatus for protecting material on storage media 248 1990
 
UNISYS CORPORATION (1)
5,111,390 Software security system for maintaining integrity of compiled object code by restricting users ability to define compilers 108 1988
 
Silanis Technology Inc. (1)
5,606,609 Electronic document verification system and method 655 1994
 
AT&T CORP. (2)
5,450,493 Secure communication method and apparatus 138 1993
5,513,261 Key management scheme for use with electronic cards 163 1993
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
VODAFONE IP LICENSING LIMITED (1)
9,015,495 Telecommunications device security 0 2013
 
TERBIUM LABS LLC (2)
8,997,256 Systems and methods for detecting copied computer code using fingerprints 0 2014
9,218,466 Systems and methods for detecting copied computer code using fingerprints 0 2015
 
AOL INC. (2)
* 9,225,533 System and method for interapplication communications 0 2014
* 2014/0331,055 SYSTEM AND METHOD FOR INTERAPPLICATION COMMUNICATIONS 0 2014
 
EXOBOX TECHNOLOGIES CORP. (1)
* 2010/0205,666 ELECTRONIC COMPUTER SYSTEM SECURED FROM UNAUTHORIZED ACCESS TO AND MANIPULATION OF DATA 2 2010
 
MICROSOFT TECHNOLOGY LICENSING, LLC (4)
* 8,284,942 Persisting private/public key pairs in password-encrypted files for transportation to local cryptographic store 2 2004
* 2006/0059,350 Strong names 4 2004
* 8,792,721 Image recognition of content 1 2013
9,294,809 Image recognition of content 0 2014
 
COCOON DATA HOLDINGS LIMITED (2)
8,806,207 System and method for securing data 1 2008
* 2011/0040,964 SYSTEM AND METHOD FOR SECURING DATA 12 2008
 
VODAFONE GROUP PLC (2)
* 8,600,060 Telecommunications device security 0 2007
* 2010/0195,833 TELECOMMUNICATIONS DEVICE SECURITY 10 2007
* Cited By Examiner

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