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

ALSO PUBLISHED AS: 20060248353

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ATTORNEY / AGENT: (SPONSORED)

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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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Patent Owner(s)

Patent OwnerAddressTotal Patents
INTERTRUST TECHNOLOGIES CORP.SUNNYVALE, CA185

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shear, Victor H Bethesda, MD 191 17138
Sibert, W Olin Lexington, MA 128 4729
Van, Wie David M Sunnyvale, CA 194 16001

Cited Art Landscape

Patent Info (Count) # Cites Year
 
InterTrust Technologies Corp. (63)
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5,943,422 Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels 779 1996
6,157,721 Systems and methods using cryptography to protect secure computing environments 435 1996
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5,910,987 Systems and methods for secure transaction management and electronic rights protection 745 1996
5,915,019 Systems and methods for secure transaction management and electronic rights protection 618 1997
5,917,912 System and methods for secure transaction management and electronic rights protection 606 1997
5,949,876 Systems and methods for secure transaction management and electronic rights protection 564 1997
5,920,861 Techniques for defining using and manipulating rights management data structures 543 1997
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2001/0042,043 CRYPTOGRAPHIC METHODS, APPARATUS AND SYSTEMS FOR STORAGE MEDIA ELECTRONIC RIGHTS MANAGEMENT IN CLOSED AND CONNECTED APPLIANCES 259 1997
5,982,891 Systems and methods for secure transaction management and electronic rights protection 830 1997
6,112,181 Systems and methods for matching, selecting, narrowcasting, and/or classifying based on rights management and/or other information 732 1997
6,668,325 Obfuscation techniques for enhancing software security 311 1998
6,253,193 Systems and methods for the secure transaction management and electronic rights protection 580 1998
6,185,683 Trusted and secure techniques, systems and methods for item delivery and execution 630 1998
6,240,185 Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels 313 1999
6,138,119 Techniques for defining, using and manipulating rights management data structures 406 1999
6,363,488 Systems and methods for secure transaction management and electronic rights protection 445 1999
6,389,402 Systems and methods for secure transaction management and electronic rights protection 366 1999
6,237,786 Systems and methods for secure transaction management and electronic rights protection 373 1999
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6,427,140 Systems and methods for secure transaction management and electronic rights protection 353 1999
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6,658,568 Trusted infrastructure support system, methods and techniques for secure electronic commerce transaction and rights management 397 1999
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6,832,316 Systems and methods for protecting data secrecy and integrity 80 2000
7,092,914 Methods for matching, selecting, narrowcasting, and/or classifying based on rights management and/or other information 41 2000
6,959,384 Systems and methods for authenticating and protecting the integrity of data streams and other data 78 2000
6,973,499 Ticketing and keying for orchestrating distribution of network content 17 2000
7,085,839 Network content management 14 2000
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7,062,500 Techniques for defining, using and manipulating rights management data structures 75 2000
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6,292,569 Systems and methods using cryptography to protect secure computing environments 301 2000
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7,107,448 Systems and methods for governing content rendering, protection, and management applications 12 2001
7,050,586 Systems and methods for retrofitting electronic appliances to accept different content formats 12 2001
7,120,802 Systems and methods for using cryptography to protect secure computing environments 31 2001
2003/0163,431 Systems and methods for secure transaction management and electronic rights protection 115 2001
6,640,304 Systems and methods for secure transaction management and electronic rights protection 236 2002
2002/0152,173 System and methods for managing the distribution of electronic content 124 2002
7,051,212 Systems and methods for secure transaction management and electronic rights protection 47 2002
2003/0023,856 Software self-checking systems and methods 80 2002
6,618,484 Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels 160 2002
6,938,021 Methods for matching, selecting, narrowcasting, and/or classifying based on rights management and/or other information 121 2002
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2003/0041,239 Systems and methods using cryptography to protect secure computing environments 61 2002
2004/0133,793 Systems and methods for secure transaction management and electronic rights protection 111 2003
7,100,199 Systems and methods for secure transaction management and electronic rights protection 61 2003
2004/0107,356 Methods and apparatus for persistent control and protection of content 116 2003
2004/0123,129 Trusted infrastructure support systems, methods and techniques for secure electronic commerce transaction and rights management 93 2003
2005/0027,871 Interoperable systems and methods for peer-to-peer service orchestration 140 2004
6,961,854 Methods and systems for encoding and protecting data using digital signature and watermarking techniques 51 2004
2005/0060,560 Systems and methods for protecting data secrecy and integrity 54 2004
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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 31 2006
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2008/0077,531 Systems and methods using cryptography to protect secure computing environments 6 2007
 
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5,287,407 Computer software protection 165 1991
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5,164,988 Method to establish and enforce a network cryptographic security policy in a public key cryptosystem 185 1991
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5,301,231 User defined function facility 170 1992
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5,644,686 Expert system and method employing hierarchical knowledge base, and interactive multimedia/hypermedia applications 171 1994
5,504,757 Method for selecting transmission speeds for transmitting data packets over a serial bus 152 1994
5,692,180 Object-oriented cell directory database for a distributed computing environment 173 1995
5,699,427 Method to deter document and intellectual property piracy through individualization 110 1995
5,745,678 Method and system for the secured distribution of multimedia titles 196 1997
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6,393,484 System and method for controlled access to shared-medium public and semi-public internet protocol (IP) networks 208 1999
 
XEROX CORPORATION (12)
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DIGIMARC CORPORATION (10)
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MICROSOFT CORPORATION (10)
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INTEL CORPORATION (7)
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5,757,915 Parameterized hash functions for access control 62 1995
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DONALD, THOMAS CHRISTOPHER (1)
4,471,163 Software protection system 266 1981
 
DSI of Hawaii, Inc. (1)
5,335,169 System for tracking multiple rate assessments on transactions 93 1992
 
E-CONTACT TECHNOLOGIES LLC (1)
5,347,579 Personal computer diary 195 1993
 
EASTMAN KODAK COMPANY (1)
5,206,951 Integration of data between typed objects by mutual, direct invocation between object managers corresponding to object types 252 1991
 
EduTech Research Labs, Ltd. (1)
5,458,494 Remotely operable teaching system and method therefor 92 1993
 
Effective Security Systems, Inc. (1)
4,791,565 Apparatus for controlling the use of computer software 169 1984
 
Electronic Signature Lock Corporation (1)
4,621,334 Personal identification apparatus 97 1983
 
EMAX ELECTRONIC MODULES CORPORATION MC CORMICK RD BOX 141 TIMONIUM MD 21093 A MD CORP (1)
4,236,217 Energy utilization or consumption recording arrangement 146 1979
 
Encyclopaedia Britannica, Inc. (1)
5,241,671 Multimedia search system using a plurality of entry path means which indicate interrelatedness of information 585 1989
 
ENTERASYS NETWORKS, INC. (1)
5,136,716 Session control in network for digital data processing system which supports multiple transfer protocols 158 1990
 
ENTRYPOINT, INC. (1)
5,740,549 Information and advertising distribution system and method 1387 1995
 
Etat Francais represente par le Ministre des P.T.T. (C.N.E.T.) (1)
4,807,288 Microprocessor intended particularly for executing the calculation algorithms of a public code encoding system 76 1983
 
FINANCIAL NEW NETWORK INC., A CORP. OF CALIFORNIA (1)
4,677,434 Access control system for transmitting data from a central station to a plurality of receiving stations and method therefor 246 1984
 
FIRST DATA CORPORATION (1)
4,321,672 Financial data processing system 689 1979
 
FLEHR HOHBACH TEST ALBRITTON & HERBERT LLP (1)
5,758,152 Method and apparatus for the generation and manipulation of data structures 97 1990
 
FLEXERA SOFTWARE LLC (1)
5,390,297 System for controlling the number of concurrent copies of a program in a network based on the number of available licenses 248 1987
 
FREESCALE SEMICONDUCTOR, INC. (1)
5,432,950 System for securing a data processing system and method of operation 93 1993
 
FUJITSU SIEMENS COMPUTERS GMBH (1)
5,224,160 Process for securing and for checking the integrity of the secured programs 125 1992
 
GENERAL COMPUTER CORPORATION (1)
4,525,599 Software protection methods and apparatus 142 1982
 
GREEN WIRELESS LLC (1)
5,355,474 System for multilevel secure database management using a knowledge base with release-based and other security constraints for query, response and update modification 235 1991
 
Information Identification Company, Inc. (1)
4,217,588 Object monitoring method and apparatus 169 1978
 
INFOSPACE, INC. (1)
4,529,870 Cryptographic identification, financial transaction, and credential device 410 1982
 
INTELLECTUAL VENTURES FUND 83 LLC (1)
5,778,385 Link manager for managing links integrating data between application programs 28 1997
 
INTELLISYNC CORPORATION (1)
5,392,390 Method for mapping, translating, and dynamically reconciling data between disparate computer platforms 454 1992
 
INTER*ACT SYSTEMS, INCORPORATED (1)
5,373,440 Promotional game method and apparatus therefor 246 1992
 
INTERACTIVE HOME SYSTEMS (1)
5,721,788 Method and system for digital image signatures 597 1992
 
Interbank Card Association (1)
4,259,720 Security system for electronic funds transfer system 87 1978
 
Intermind Corporation (1)
6,044,205 Communications system for transferring information between memories according to processes transferred with the information 355 1996
 
International Business Systems, Incorporated (1)
5,734,719 Digital information accessing, delivery and production system 378 1996
 
IPG HEALTHCARE 501 LIMITED (1)
5,335,346 Access control policies for an object oriented database, including access control lists which span across object boundaries 265 1991
 
Kabushiki Kaisha Sega Enterprises (1)
5,371,792 CD-ROM disk and security check method for the same 180 1993
 
KABUSHIKI KAISHA TOSHIBA (1)
5,485,622 Password processing system for computer 79 1992
 
KENT RIDGE DIGITAL LABS (1)
5,499,298 Controlled dissemination of digital information 193 1994
 
Key Logic, Inc. (1)
4,584,639 Computer security system 129 1983
 
KOKUSAI DENSHIN DENWA KABUSHIKI KAISHA (1)
5,508,913 Electronic automatic offer matching system for freezer exchange transactions among banks 147 1994
 
L'ETAT FRANCAIS, REPRESENTE PAR SECRETAIRE D'ETAT POSTES ET TELECOMMUNICATIONS (CENTRE NATIONAL D'ETUDES DES TELECOMMUNICATION) (1)
4,337,483 Text video-transmission system provided with means for controlling access to the information 238 1980
 
L'ETAT FRANCIS, REPRESENTE PAR LE SECRETAIRE D'ETAT AUX POSTES ET TELECOMMUNICATIONS (CENTRE NATIONAL D'ETUDES DES DES TELECOMMMUNICATIONS) (1)
4,323,921 System for transmitting information provided with means for controlling access to the information transmitted 350 1980
 
LANRALD DATA MGMT. NV, LLC (1)
5,065,429 Method and apparatus for protecting material on storage media 235 1990
 
LEGERITY, INC. (1)
5,199,074 Encryption system 41 1992
 
LOCKHEED MARTIN CORPORATION (1)
5,343,527 Hybrid encryption method and system for protecting reusable software components 289 1993
 
LUCENT TECHNOLOGIES INC. (1)
5,629,770 Document copying deterrent method using line and word shift techniques 147 1995
 
MAAST PARTNERS LTD, A CALIFORNIA LIMITED PARTNERSHIP (1)
4,484,217 Method and system for remote reporting, particularly for pay television billing 288 1982
 
MACROVISION CORPORATION (1)
5,315,448 Copy protection for hybrid digital video tape recording and unprotected source material 226 1993
 
MATRA COMMUNICATION, SOCIETE ANONYME (1)
5,280,479 Device for insertion of digital packets in a transmission channel 74 1992
 
MCAFEE, INC. (1)
5,361,359 System and method for controlling the use of a computer 200 1992
 
MEDIABAY. COM, INC. (1)
4,528,643 System for reproducing information in material objects at a point of sale location 680 1983
 
MEDIADNA,COM (1)
5,845,281 Method and system for managing a data object so as to comply with predetermined conditions for usage 351 1996
 
Medical Payment Systems, Incorporated (1)
4,858,121 Medical payment system 350 1986
 
MICRONYX, INC. (1)
4,864,616 Cryptographic labeling of electronically stored data 131 1987
 
MONDEX INTERNATIONAL LIMITED (1)
5,440,634 Value transfer system 215 1993
 
MOTOROLA MOBILITY LLC (1)
5,678,170 Method and apparatus for monitoring and limiting distribution of data 61 1994
 
National Information Utilities Corporation (1)
4,768,087 Education utility 245 1985
 
NATIONAL INSTRUMENTS CORPORATION (1)
6,102,965 System and method for providing client/server access to graphical programs 96 1997
 
NATIONAL RURAL TELECOMMUNICATIONS COOPERATIVE (1)
4,893,248 Monitoring and reporting system for remote terminals 270 1987
 
NEW AURORA CORPORATION (1)
5,671,279 Electronic commerce using a secure courier system 594 1995
 
NEWFREY LLC (1)
5,996,756 Yarn supply apparatus and clutch arrangement therefor 8 1998
 
NEXTLEVEL SYSTEM OF DELAWARE (1)
5,010,571 Metering retrieval of encrypted data stored in customer data retrieval terminal 394 1986
 
NINTENDO CO., LTD. (1)
4,305,131 Dialog between TV movies and human viewers 541 1980
 
North American Philips Corporation (1)
4,442,486 Protected programmable apparatus 179 1981
 
NOVA BIOMEDICAL CORPORATION (1)
4,975,647 Controlling machine operation with respect to consumable accessory units 190 1988
 
OPENTV, INC. (1)
5,625,693 Apparatus and method for authenticating transmitting applications in an interactive TV system 166 1995
 
ORACLE INTERNATIONAL CORPORATION (1)
5,754,849 Self-describing object providing dynamic manipulation of heterogeneous data values and semantic identity between memory and transmission representations 195 1996
 
PACKETVIDEO CORPORATION (1)
5,636,276 Device for the distribution of music information in digital form 427 1995
 
Panafacom Limited (1)
4,701,846 Computer system capable of interruption using special protection code for write interruption region of memory device 63 1986
 
PANASONIC ELECTRIC WORKS CO., LTD. (1)
6,085,238 Virtual LAN system 363 1997
 
PARKER-HANNIFIN CORPORATION (1)
5,473,692 Roving software license for a hardware agent 541 1994
 
PENTA SYSTEMS INTERNATIONAL, IN., A CORP OF MD (1)
4,458,315 Apparatus and method for preventing unauthorized use of computer programs 295 1982
 
Pioneer Electronic Corporation (1)
5,940,505 Information recording method and apparatus, function recording method and apparatus, and information reproducing method and apparatus 48 1996
 
PREVIEW SOFTWARE (1)
4,658,093 Software distribution system 751 1983
 
Pride Software Development Corp. (1)
4,796,220 Method of controlling the copying of software 369 1986
 
PRIME COMPUTER, INC. (1)
4,924,378 License mangagement system and license storage key 423 1988
 
PTT Research (1)
5,504,837 Method for resolving conflicts among distributed entities through the generation of counter proposals by transversing a goal hierarchy with acceptable, unacceptable, and indeterminate nodes 181 1993
 
PUBLIC ESTABLISHMENT (1)
4,816,655 Method and apparatus for checking the authenticity of individual-linked documents and the identity of the holders thereof 104 1986
 
PUBLIC KEY PARTNERS (1)
4,995,082 Method for identifying subscribers and for generating and verifying electronic signatures in a data exchange system 202 1990
 
Pueblo Technologies, Inc. (1)
4,685,056 Computer security device 185 1985
 
QMS, INC. (1)
4,888,798 Modular software security 229 1986
 
QUALCOMM INCORPORATED (1)
5,103,459 System and method for generating signal waveforms in a CDMA cellular telephone system 1572 1990
 
RAINBOW TECHNOLOGIES, INC. (1)
4,593,353 Software protection method and apparatus 228 1981
 
RAKUTEN, INC. (1)
5,455,953 Authorization system for obtaining in single step both identification and access rights of client to server directly from encrypted authorization ticket 408 1993
 
RAYTHEON BBN TECHNOLOGIES CORP. (1)
5,319,735 Embedded signalling 600 1991
 
Remote Systems, Inc. (1)
4,652,990 Protected software access control apparatus and method 216 1983
 
RESPONSE REWARDS SYSTEMS, L.C. (1)
5,759,101 Central and remote evaluation of responses of participatory broadcast audience with automatic crediting and couponing 282 1994
 
Romox, Inc. (1)
4,680,731 Reprogrammable cartridge memory with built-in identification circuitry and programming method 91 1986
 
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 263 1994
 
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 45 1987
 
SACHIKO OKANO (1)
5,504,818 Information processing system using error-correcting codes and cryptography 213 1994
 
SAFENET, INC. (1)
5,337,357 Method of software distribution protection 289 1993
 
SAMSUNG ELECTRONICS CO., LTD. (1)
4,494,156 Selectable format computer disk copier machine 165 1982
 
Sangamo Weston, Inc. (1)
4,361,877 Billing recorder with non-volatile solid state memory 188 1980
 
SEAGATE TECHNOLOGY LLC (1)
5,408,501 Data transfer system 33 1993
 
SECURE COMPUTING TECHNOLOGY CORPORATION (1)
5,276,735 Data enclave and trusted path system 343 1992
 
SECURE-TIME, INC., A CORP OF IDAHO (1)
4,700,296 Electronic access control system 117 1985
 
Securities Dynamics Technologies, Inc. (1)
5,237,614 Integrated network security system 334 1991
 
SECURITY SOFTWARE AMERICA, INC., A CORP. OF DE (1)
4,757,533 Security system for microcomputers 237 1985
 
SGS-THOMSON MICROELECTRONICS, INC. (1)
4,609,985 Microcomputer with severable ROM 39 1982
 
SILANIS TECHNOLOGY INC. (1)
5,606,609 Electronic document verification system and method 624 1994
 
SILICON GRAPHICS INTERNATIONAL, CORP. (1)
5,390,330 Control system and method for direct execution of software application information models without code generation 149 1993
 
SMITH ENGINEERING, A SOLE PROPRIETORSHIP (1)
4,462,076 Video game cartridge recognition and security system 234 1982
 
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 362 1983
 
SOFTWARE SECURITY, INC. (1)
4,562,306 Method and apparatus for protecting computer software utilizing an active coded hardware device 214 1983
 
Special Effects Software, Inc. (1)
5,199,066 Method and apparatus for protecting software 189 1989
 
SPYRUS, INC. (1)
5,457,746 System and method for access control for portable data storage media 403 1994
 
ST. PATENT HOLDINGS LLC (1)
5,509,070 Method for encouraging purchase of executable and non-executable software 515 1992
 
STANDARD MICROSYSTEMS CORPORATION (1)
4,513,174 Software security method using partial fabrication of proprietary control word decoders and microinstruction memories 161 1981
 
STAR CO RANGER DIGITAL, LLC (1)
2004/0095,382 Portable memory drive retaining personalized interface on multiple host computers 1 2002
 
STEVEN M. HOFFBERG 2004-1 GRAT (1)
2002/0151,992 Media recording device with packet data interface 6 2002
 
STRATEGIC PROCESSING CORPORATION (1)
4,799,156 Interactive market management system 1701 1986
 
SURETY, LLC (1)
5,373,561 Method of extending the validity of a cryptographic certificate 216 1992
 
SYBASE, INC. (1)
5,572,673 Secure multi-level system for executing stored procedures 160 1993
 
SYMANTEC CORPORATION (1)
5,530,752 Systems and methods for protecting software from unlicensed copying and use 120 1994
 
TAGAWA, RICHARD S. (1)
5,732,398 Self-service system for selling travel-related services or products 383 1995
 
TESTDRIVE CORPORATION (1)
5,341,429 Transformation of ephemeral material 390 1992
 
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY (1)
4,309,569 Method of providing digital signatures 214 1979
 
The Marconi Company Limited (1)
4,232,193 Message signal scrambling apparatus 153 1978
 
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
 
THOMSON LICENSING (1)
6,141,753 Secure distribution of digital representations 210 1998
 
THORN EMI PLC (1)
5,079,648 Marked recorded signals 195 1989
 
Tibco, Inc. (1)
5,557,798 Apparatus and method for providing decoupling of data exchange details for providing high performance communication between software processes 457 1990
 
TITAN CORPORATION, THE (1)
4,712,238 Selective-subscription descrambling 238 1984
 
Tokyo Electric Co., Ltd. (1)
4,220,991 Electronic cash register with removable memory packs for cashier identification 180 1978
 
Tokyo Shibaura Denki Kabushiki Kaisha (1)
4,593,183 Automatic transaction machine 99 1983
 
TRAFALGAR INDUSTRIES, INC. (MERGED INTO) (1)
4,265,371 Foodstuff vending apparatus employing improved solid-state type control apparatus 72 1978
 
U S WEST TECHNOLOGIES, INC. (1)
5,550,971 Method and system for generating a user interface adaptable to various database management systems 183 1995
 
UNICATE B.V. (1)
5,354,097 Security of objects or documents 74 1992
 
UNILOC LUXEMBOURG S. A. (1)
5,490,216 System for software registration 206 1993
 
UNISYS CAD/CAM (1)
4,683,968 System for preventing software piracy employing multi-encrypted keys and single decryption circuit modules 79 1985
 
UNISYS CORPORATION (1)
5,111,390 Software security system for maintaining integrity of compiled object code by restricting users ability to define compilers 103 1988
 
UNITRAC, LLC (1)
5,521,815 Uniform system for verifying and tracking articles of value 190 1993
 
UP TWO, INC. (1)
5,640,546 Composition of systems of objects by interlocking coordination, projection, and distribution 128 1995
 
VAN DETSAN NETWORKS LIMITED LIABILITY COMPANY (1)
4,926,480 Card-computer moderated systems 332 1988
 
Verbatim Corporation (1)
4,562,495 Multiple system disk 145 1984
 
VERIZON PATENT AND LICENSING INC. (1)
4,919,545 Distributed security procedure for intelligent networks 161 1988
 
VIDEO-ON-DEMAND VENTURES LLC (1)
4,949,187 Video communications system having a remotely controlled central source of video and audio data 758 1988
 
VISA U.S.A. INC. (1)
4,578,530 End-to-end encryption system and method of operation 298 1983
 
WEBVENTION GROUP LLC (1)
5,251,294 Accessing, assembling, and using bodies of information 122 1990
 
Westinghouse Electric Corp. (1)
4,649,515 Methods and apparatus for system fault diagnosis and control 247 1986
 
WISCONSIN ALUMNI RESEARCH FOUNDATION (1)
4,375,579 Database encryption and decryption circuit and method using subkeys 181 1980
 
WISTRON CORPORATION (1)
6,983,371 Super-distribution of protected digital content 120 2000
 
Xidak, Inc. (1)
5,201,046 Relational database management system and method for storing, retrieving and modifying directed graph data structures 182 1990
 
YT ACQUISITION CORPORATION (1)
7,152,045 Tokenless identification system for authorization of electronic transactions and electronic transmissions 66 2002
 
Other [Check patent profile for assignment information] (36)
4,270,182 Automated information input, storage, and retrieval system 198 1974
4,246,638 Method and apparatus for controlling usage of a programmable computing machine 70 1978
4,232,317 Quantized hyperbolic and inverse hyperbolic object location system 90 1978
4,670,857 Cartridge-controlled system whose use is limited to authorized cartridges 129 1981
4,528,588 Method and apparatus for marking the information content of an information carrying signal 459 1982
4,523,271 Software protection method and apparatus 50 1982
4,462,078 Computer program protection method 159 1982
4,558,176 Computer systems to inhibit unauthorized copying, unauthorized usage, and automated cracking of protected software 373 1982
4,553,252 Counting computer software cartridge 150 1982
4,593,376 System for vending program cartridges which have circuitry for inhibiting program usage after preset time interval expires 304 1983
4,573,119 Computer software protection system 77 1983
4,584,641 Copyprotecting system for software protection 211 1983
4,677,552 International commodity trade exchange 581 1984
4,595,950 Method and apparatus for marking the information content of an information carrying signal 358 1984
4,688,169 Computer software security system 221 1985
4,823,264 Electronic funds transfer system 565 1986
4,748,561 Method of protecting computer software 60 1986
4,747,139 Software security method and systems 239 1986
4,796,181 Billing system for computer software 243 1986
4,999,806 Software distribution system 490 1987
4,868,877 Public key/signature cryptosystem with enhanced digital signature certification 396 1988
5,047,928 Billing system for computer software 362 1989
5,005,200 Public key/signature cryptosystem with enhanced digital signature certification 365 1989
5,001,752 Public/key date-time notary facility 206 1989
5,163,091 Knowledge based system for document authentication (apparatus) 87 1990
5,136,643 Public/key date-time notary facility 214 1990
5,150,407 Secured data storage devices 120 1991
5,185,717 Tamper resistant module having logical elements arranged in multiple layers on the outer surface of a substrate to protect stored information 119 1992
5,214,702 Public key/signature cryptosystem with enhanced digital signature certification 275 1992
5,422,953 Personal date/time notary device 153 1993
5,390,247 Method and apparatus for creating, supporting, and using travelling programs 167 1993
5,337,360 Method and apparatus for creating, supporting, and using travelling programs 161 1994
5,689,566 Network with secure communications sessions 234 1995
5,692,980 Kick bag game and apparatus kit 16 1996
5,748,960 Method and apparatus for validating travelling object-oriented programs with digital signatures 138 1996
5,842,173 Computer-based surgical services management system 110 1997

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
MICROSOFT CORPORATION (2)
8,284,942 Persisting private/public key pairs in password-encrypted files for transportation to local cryptographic store 2 2004
8,792,721 Image recognition of content 0 2013
 
COCOON DATA HOLDINGS LIMITED (1)
8,806,207 System and method for securing data 0 2008
 
VODAFONE GROUP PLC (1)
8,600,060 Telecommunications device security 0 2007

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