Exponentiation cryptographic apparatus and method

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United States of America Patent

PATENT NO

4424414

SERIAL NO

05901770

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Abstract

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A cryptographic system transmits a computationally secure cryptogram that is generated from a secret transformation of the message sent by the authorized transmitter; the cryptogram is again transformed by the authorized receiver using a secret reciprocal transformation to reproduce the message sent. The secret transformations use secret cipher keys that are known only by the authorized transmitter and receiver. The transformations are performed with nonsecret operations, exponentiation, that are easily performed but extremely difficult to invert. It is computationally infeasible for an eavesdropper either to solve known plaintext-ciphertext pairs for the secret cipher keys, or to invert the nonsecret operations that are used to generate the cryptogram.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITYPALO ALTO, CA2375

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hellman, Martin E Stanford, CA 10 2846
Pohlig, Stephen C Acton, MA 1 341

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (10)
* 4703503 Cryptographic system using pseudocomplements of vector Boolean algebra 9 1986
* 5987130 Simiplified secure swift cryptographic key exchange 7 1997
* 6122742 Auto-recoverable and auto-certifiable cryptosystem with unescrowed signing keys 16 1997
* 2002/0032,860 Account authority digital signature 26 2001
* 2002/0184,511 Secure accounting and operational control reporting system 2 2002
* 2003/0212,992 Apparatus and method for using application signatures for the identification of files 58 2003
* 2006/0095,792 Super-distribution of protected digital content 96 2005
* 2007/0180,240 Data security system for a database 2 2006
* 2008/0005,571 Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth 52 2007
9151633 Mobile communication device for delivering targeted advertisements 1 2014
 
CRYPTOPEAK SOLUTIONS, LLC (5)
6202150 Auto-escrowable and auto-certifiable cryptosystems 22 1997
6243466 Auto-escrowable and auto-certifiable cryptosystems with fast key generation 9 1997
6389136 Auto-Recoverable and Auto-certifiable cryptosystems with RSA or factoring based keys 28 1997
6282295 Auto-recoverable and auto-certifiable cryptostem using zero-knowledge proofs for key escrow in general exponential ciphers 56 1997
6473508 Auto-recoverable auto-certifiable cryptosystems with unescrowed signature-only keys 32 1998
 
SMARTFLASH LLC (1)
8794516 Data storage and access systems 1 2012
 
SONY CORPORATION (1)
* 2005/0005,148 Contents processing system 5 2004
 
EMC IP HOLDING COMPANY LLC (7)
7716484 System and method for increasing the security of encrypted secrets and authentication 23 2001
* 2010/0100,724 SYSTEM AND METHOD FOR INCREASING THE SECURITY OF ENCRYPTED SECRETS AND AUTHENTICATION 40 2001
7359507 Server-assisted regeneration of a strong secret from a weak secret 152 2001
8060750 Secure seed provisioning 3 2007
* 2009/0006,858 Secure seed provisioning 5 2007
8059814 Techniques for carrying out seed or key derivation 8 2007
8307210 Method and apparatus for secure validation of tokens 4 2008
 
LEVEL 3 COMMUNICATIONS, LLC (8)
6226618 Electronic content delivery system 1318 1998
6263313 Method and apparatus to create encoded digital content 426 1998
6587837 Method for delivering electronic content from an online store 413 1998
6398245 Key management system for digital content player 255 1998
7206748 Multimedia player toolkit for electronic content delivery 72 1998
6418421 Multimedia player for an electronic content delivery system 435 1998
7110984 Updating usage conditions in lieu of download digital rights management protected content 76 2000
6859791 Method for determining internet users geographic region 95 2000
 
GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE, THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY (1)
* 5231668 Digital signature algorithm 179 1991
 
RIVERWOOD INTERNATIONAL CORPORATION (2)
7143284 ABDS method and verification status for authenticating entity access 13 2003
* 2003/0126,437 ABDS Method and Verification Status for Authenticating Entity Access 33 2003
 
DE LA RUE CARTES ET SYSTEMES SAS (1)
* 5761310 Communication system for messages enciphered according to an RSA-type procedure 7 1996
 
VERIDIAN INFORMATION SOLUTIONS, INC. (1)
* 5414771 System and method for the creation of random sequences and for the cryptographic protection of communications 26 1993
 
GOOGLE TECHNOLOGY HOLDINGS LLC (2)
* 6078593 Method and apparatus for reliable operation of universal voice grade cards 13 1997
6574333 State machine based universal voice grade cards 8 1999
 
GILBARCO INC. (3)
* 5228084 Security apparatus and system for retail environments 41 1991
* 5384850 Security apparatus and system for retail environments 20 1992
* 5448638 Security apparatus and system for retail environments 36 1994
 
FCA US LLC (1)
* 5787367 Flash reprogramming security for vehicle computer 54 1996
 
PROTEGRITY CORPORATION (3)
* 2007/0067,637 Method and a system for preventing impersonation of a database user 13 2006
8443426 Method and system for preventing impersonation of a computer system user 1 2008
8402281 Data security system for a database 6 2010
 
The United States of America as represented by the United States Department of Energy (1)
* 5299262 Method for exponentiating in cryptographic systems 34 1992
 
SCHLAGE LOCK COMPANY (1)
* 4837822 Cryptographic based electronic lock system and method of operation 50 1986
 
CHANG, CHUNG NAN (2)
* 5583939 Secure, swift cryptographic key exchange 28 1995
* 5835592 Secure, swift cryptographic key exchange 56 1995
 
Uponus Technologies, LLC (2)
7382878 System and method for data encryption 4 2001
* 2003/0016,820 System and method for data encryption 3 2001
 
Scott A. Moskowitz (1)
* 2007/0011,458 Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data 27 2006
 
Canon Kabushiki Kaisha (1)
* 2002/0083,114 Obtaining temporary exclusive control of a printing device 12 2000
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (21)
* 4736423 Technique for reducing RSA Crypto variable storage 51 1986
* 5163096 Storage protection utilizing public storage key control 98 1991
* 5926551 System and method for certifying content of hard-copy documents 24 1995
* 5737425 Cryptosystem employing worst-case difficult-to solve lattice problem 4 1996
* 5953420 Method and apparatus for establishing an authenticated shared secret value between a pair of users 86 1996
6560337 Systems, methods and computer program products for reducing effective key length of ciphers using one-way cryptographic functions and an initial key 8 1998
6363154 Decentralized systems methods and computer program products for sending secure messages among a group of nodes 64 1998
7269564 Method and apparatus to indicate an encoding status for digital content 38 1998
6345256 Automated method and apparatus to package digital content for electronic distribution using the identity of the source content 551 1998
6959288 Digital content preparation system 130 1999
6834110 Multi-tier digital TV programming for content distribution 132 1999
7213005 Digital content distribution using web broadcasting services 164 2000
* 2003/0135,464 Digital content distribution using web broadcasting services 125 2000
6978375 System and method for secure authentication of external software modules provided by third parties 3 2000
7500109 System and method for secure authentication of external software modules provided by third parties 0 2005
* 2005/0216,422 System and method for secure authentication of external software modules provided by third parties 2 2005
7487128 Updating usage conditions in lieu of download digital rights management protected content 22 2005
* 2006/0089,912 Updating usage conditions in lieu of download digital rights management protected content 61 2005
7277870 Digital content distribution using web broadcasting services 107 2005
* 2006/0053,077 Digital content distribution using web broadcasting services 48 2005
7590866 Super-distribution of protected digital content 13 2005
 
BLANDING HOVENWEEP, LLC (1)
9551582 Mobile communication device 0 2015
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (3)
* 5568554 Method for improving the processing and storage performance of digital signature schemes 66 1995
* 5999624 Remote financial transaction system 283 1996
* 5848159 Public key cryptographic apparatus and method 67 1997
 
LEAR CORPORATION EEDS AND INTERIORS (7)
* 5377270 Cryptographic authentication of transmitted messages using pseudorandom numbers 49 1993
* 5363448 Pseudorandom number generation and cryptographic authentication 160 1993
* 5398284 Cryptographic encoding process 30 1993
* 5369706 Resynchronizing transmitters to receivers for secure vehicle entry using cryptography or rolling code 72 1993
* 5757923 Method of generating secret identification numbers 156 1996
* RE36181 Pseudorandom number generation and crytographic authentication 24 1996
* RE36752 Cryptographic authentication of transmitted messages using pseudorandom numbers 11 1996
 
WISTARIA TRADING LTD (116)
* 5613004 Steganographic method and device 752 1995
* 5822432 Method for human-assisted random key generation and application for digital watermark system 347 1996
7362775 Exchange mechanisms for digital information packages with bandwidth securitization, multichannel digital watermarks, and key management 61 1996
* 5889868 Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data 462 1996
* 5687236 Steganographic method and device 528 1996
7568100 Steganographic method and device 61 1997
6598162 Method for combining transfer functions with predetermined key creation 133 1998
* 5905800 Method and system for digital watermarking 488 1998
6205249 Multiple transform utilization and applications for secure digital watermarking 229 1998
6522767 Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data 220 1999
7007166 Method and system for digital watermarking 150 2000
7035409 Multiple transform utilization and applications for secure digital watermarking 52 2000
7107451 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 84 2001
* 2001/0029,580 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 32 2001
7095874 Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data 75 2003
* 2003/0219,143 Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data 33 2003
7287275 Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth 101 2003
* 2003/0200,439 Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth 19 2003
7664263 Method for combining transfer functions with predetermined key creation 52 2003
* 2004/0086,119 Method for combining transfer functions with predetermined key creation 57 2003
* 2004/0243,540 Method and device for monitoring and analyzing signals 72 2004
7152162 Z-transform implementation of digital watermarks 58 2004
* 2005/0135,615 Z-transform implementation of digital watermarks 26 2004
7761712 Steganographic method and device 51 2005
* 2005/0177,727 Steganographic method and device 62 2005
7343492 Method and system for digital watermarking 68 2005
* 2006/0101,269 Method and system for digital watermarking 33 2005
7738659 Multiple transform utilization and application for secure digital watermarking 7 2006
* 2006/0140,403 Multiple transform utilization and application for secure digital watermarking 52 2006
7409073 Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data 62 2006
* 2006/0285,722 Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data 29 2006
7457962 Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data 57 2006
8538011 Systems, methods and devices for trusted transactions 2 2006
* 2007/0028,113 Systems, methods and devices for trusted transactions 64 2006
8271795 Security based on subliminal and supraliminal channels for data objects 0 2006
* 2008/0028,222 Security based on subliminal and supraliminal channels for data objects 52 2006
7664264 Utilizing data reduction in steganographic and cryptographic systems 5 2006
* 2007/0064,940 Utilizing data reduction in steganographic and cryptographic systems 61 2006
7730317 Linear predictive coding implementation of digital watermarks 5 2006
7930545 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 4 2006
7647502 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 52 2006
7532725 Systems and methods for permitting open access to data objects and for securing data within the data objects 52 2006
* 2007/0110,240 System and methods for permitting open access to data objects and for securing data within the data objects 60 2006
7779261 Method and system for digital watermarking 55 2007
* 2007/0113,094 Method and system for digital watermarking 59 2007
8046841 Steganographic method and device 4 2007
7870393 Steganographic method and device 7 2007
* 2007/0294,536 Steganographic method and device 51 2007
9104842 Data protection method and device 0 2007
* 2008/0016,365 Data protection method and device 54 2007
7664958 Optimization methods for the insertion, protection and detection of digital watermarks in digital data 7 2007
* 2008/0022,113 Optimization methods for the insertion, protection and detection of digital of digital watermarks in digital data 54 2007
7822197 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 3 2007
7647503 Optimization methods for the insertion, projection, and detection of digital watermarks in digital data 53 2007
* 2008/0022,114 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 58 2007
8224705 Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth 1 2007
7530102 Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth 67 2007
7770017 Method and system for digital watermarking 6 2007
7830915 Methods and systems for managing and exchanging digital information packages with bandwidth securitization instruments 4 2008
* 2008/0151,934 Exchange mechanisms for digital information packages with bandwidth securitization, multichannel digital watermarks, and key management 50 2008
7844074 Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data 16 2008
* 2010/0002,904 Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data 49 2008
7987371 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 0 2008
* 2009/0037,740 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 51 2008
8171561 Secure personal content server 7 2008
8104079 Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth 1 2009
* 2009/0210,711 Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth 55 2009
8238553 Steganographic method and device 1 2009
7813506 System and methods for permitting open access to data objects and for securing data within the data objects 0 2009
* 2009/0220,074 Steganographic method and device 51 2009
* 2009/0190,754 System and methods for permitting open access to data objects and for securing data within the data objects 51 2009
7953981 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 3 2009
* 2010/0005,308 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 49 2009
7877609 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 0 2009
* 2010/0064,140 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 49 2009
8281140 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 5 2009
* 2010/0077,220 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 47 2009
8265276 Method for combining transfer functions and predetermined key creation 0 2009
8160249 Utilizing data reduction in steganographic and cryptographic system 2 2009
* 2010/0153,734 Utilizing data reduction in steganographic and cryptographic system 51 2009
* 2010/0098,251 Method for combining transfer functions and predetermined key creation 48 2009
8225099 Linear predictive coding implementation of digital watermarks 1 2010
* 2010/0202,607 Linear predictive coding implementation of digital watermarks 47 2010
8542831 Multiple transform utilization and application for secure digital watermarking 0 2010
* 2010/0220,861 Multiple transform utilization and application for secure digital watermarking 47 2010
8467525 Steganographic method and device 4 2010
8307213 Method and system for digital watermarking 17 2010
8161286 Method and system for digital watermarking 17 2010
* 2011/0010,555 Method and system for digital watermarking 2 2010
* 2010/0293,387 Method and system for digital watermarking 0 2010
8265278 System and methods for permitting open access to data objects and for securing data within the data objects 15 2010
8774216 Exchange mechanisms for digital information packages with bandwidth securitization, multichannel digital watermarks, and key management 0 2010
* 2011/0019,691 EXCHANGE MECHANISMS FOR DIGITAL INFORMATION PACKAGES WITH BANDWIDTH SECURITIZATION, MULTICHANNEL DIGITAL WATERMARKS, AND KEY MANAGEMENT 14 2010
8121343 Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data 14 2010
8549305 Steganographic method and device 0 2010
* 2011/0069,864 STEGANOGRAPHIC METHOD AND DEVICE 14 2010
8175330 Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data 2 2011
8473746 Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth 0 2011
8739295 Secure personal content server 0 2012
8526611 Utilizing data reduction in steganographic and cryptographic systems 1 2012
8612765 Security based on subliminal and supraliminal channels for data objects 0 2012
RE44307 Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth 0 2012
RE44222 Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth 0 2012
8706570 Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth 0 2012
8930719 Data protection method and device 1 2012
8767962 System and methods for permitting open access to data objects and for securing data within the data objects 0 2012
9021602 Data protection method and device 0 2013
8798268 System and methods for permitting open access to data objects and for securing data within the data objects 0 2013
9070151 Systems, methods and devices for trusted transactions 2 2013
8789201 Secure personal content server 0 2013
8781121 Utilizing data reduction in steganographic and cryptographic systems 0 2013
9191205 Multiple transform utilization and application for secure digital watermarking 0 2014
9191206 Multiple transform utilization and application for secure digital watermarking 0 2014
9270859 Utilizing data reduction in steganographic and cryptographic systems 0 2014
9258116 System and methods for permitting open access to data objects and for securing data within the data objects 0 2014
9171136 Data protection method and device 0 2014
 
FUJITSU LIMITED (1)
* 5313521 Key distribution protocol for file transfer in the local area network 105 1992
 
SUN MICROSYSTEMS, INC. (2)
* 5371794 Method and apparatus for privacy and authentication in wireless networks 390 1993
* RE36946 Method and apparatus for privacy and authentication in wireless networks 86 1996
 
MOTOROLA, INC. (1)
* 4827507 Duplex analog scrambler 21 1987
 
FIRST DATA CORPORATION (70)
6820202 Account authority digital signature (AADS) system 96 1998
8620814 Three party account authority digital signature (AADS) system 0 2001
* 2002/0112,160 Three Party Account Authority Digital Signature (AADS) System 26 2001
7558965 Entity authentication in electronic communications by providing verification status of device 44 2001
7552333 Trusted authentication digital signature (tads) system 28 2001
7500272 Manufacturing unique devices that generate digital signatures 15 2001
7200749 Method and system for using electronic communications for an electronic contract 27 2001
7047416 Account-based digital signature (ABDS) system 23 2001
6983368 Linking public key of device to information during manufacture 10 2001
6978369 Person-centric account-based digital signature system 103 2001
* 2002/0026,575 Account-based digital signature (ABDS) system 76 2001
* 2002/0023,217 Manufacturing unique devices that generate digital signatures 39 2001
* 2002/0016,913 Modifying message data and generating random number digital signature within computer chip 36 2001
6981154 Account authority digital signature (AADS) accounts 12 2001
6820199 Sending electronic transaction message, digital signature derived therefrom, and sender identity information in AADS system 25 2002
* 2002/0116,608 Sending electronic transaction message, digital signature derived therefrom, and sender identity information in AADS system 4 2002
* 2002/0129,248 Account-based digital signature (ABDS) system 25 2002
* 2003/0014,372 Trusted authentication digital signature (tads) system 70 2002
* 2003/0177,361 Method and system for using electronic communications for an electronic contract 25 2002
7010691 ABDS system utilizing security information in authenticating entity access 21 2003
6950940 ABDS method utilizing security information in authenticating entity access 41 2003
6938156 ABDS system and verification status for authenticating entity access 98 2003
6851054 Account-Based digital signature (ABDS) system for authenticating entity access to controlled resource 74 2003
* 2003/0131,235 ABDS Method Utilizing Security Information in Authenticating Entity Access 5 2003
* 2003/0131,234 Account-Based Digital Signature (ABDS) System for Authenticating Entity Access to Controlled Resource 0 2003
* 2003/0126,439 ABDS System Utilizing Security Information in Authenticating Entity Access 1 2003
* 2003/0126,438 ABDS System and Verification Status for Authenticating Entity Access 2 2003
7096354 Central key authority database in an ABDS system 74 2003
7082533 Gauging risk in electronic communications regarding accounts in ABDS system 9 2003
7047414 Managing database for reliably identifying information of device generating digital signatures 39 2003
7028185 Managing database for identifying to recipients security features of devices generating digital signatures 25 2003
6959381 Central key authority (CKA) database for user accounts in ABDS system 25 2003
6957336 Establishing initial PuK-linked account database 14 2003
6952773 Requesting execution of instructions on accounts in ABDS system 11 2003
6915430 Reliably identifying information of device generating digital signatures 17 2003
6892302 Incorporating security certificate during manufacture of device generating digital signatures 18 2003
6789189 Managing account database in ABDS system 37 2003
* 2003/0115,463 Requesting Execution of Instructions on Accounts in ABDS System 5 2003
* 2003/0101,344 Establishing Initial PuK-Linked Account Database 17 2003
* 2003/0101,136 Managing Account Database in ABDS System 9 2003
* 2003/0097,562 Managing Database for Reliably Identifying Information of Device Generating Digital Signatures 4 2003
* 2003/0097,561 Gauging Risk in Electronic Communications Regarding Accounts in ABDS System 2 2003
* 2003/0097,573 Central Key Authority Database in an ABDS System 8 2003
* 2003/0097,570 Managing Database for Identifying to Recipients Security Features of Devices Generating Digital Signatures 1 2003
* 2004/0128,508 Method and apparatus for access authentication entity 35 2003
* 2004/0030,901 Linking public key of device to information during manufacture 10 2003
* 2004/0005,051 Entity authentication in eletronic communications by providing verification status of device 37 2003
* 2003/0115,151 Person-centric account-based digital signature system 19 2003
7257228 Account authority digital signature (AADS) system using encoded information 13 2004
* 2005/0044,373 ACCOUNT AUTHORITY DIGITAL SIGNATURE (AADS) SYSTEM USING ENCODED INFORMATION 1 2004
7549050 Sending electronic transaction message for entity information account, digital signature derived therefrom, and sender identity information in AADS system 1 2004
7519821 Account authority digital signature (AADS) system 1 2004
* 2005/0005,123 ACCOUNT AUTHORITY DIGITAL SIGNATURE (AADS) SYSTEM 11 2004
7936869 Verifying digital signature based on shared knowledge 1 2005
7869593 Software for providing based on shared knowledge public keys having same private key 4 2005
7693277 Generating digital signatures using ephemeral cryptographic key 0 2005
7593527 Providing digital signature and public key based on shared knowledge 8 2005
7490239 Facilitating digital signature based on ephemeral private key 4 2005
* 2006/0156,013 DIGITAL SIGNATURE SOFTWARE USING EPHEMERAL PRIVATE KEY AND SYSTEM 2 2005
* 2006/0156,012 FACILITATING DIGITAL SIGNATURE BASED ON EPHEMERAL PRIVATE KEY 1 2005
* 2006/0153,370 GENERATING PUBLIC-PRIVATE KEY PAIR BASED ON USER INPUT DATA 10 2005
* 2006/0153,366 VERIFYING DIGITAL SIGNATURE BASED ON SHARED KNOWLEDGE 3 2005
* 2006/0153,371 GENERATING DIGITAL SIGNATURES USING EPHEMERAL CRYPTOGRAPHIC KEY 3 2005
* 2006/0153,365 PROVIDING DIGITAL SIGNATURE AND PUBLIC KEY BASED ON SHARED KNOWLEDGE 2 2005
* 2006/0153,368 SOFTWARE FOR PROVIDING BASED ON SHARED KNOWLEDGE PUBLIC KEYS HAVING SAME PRIVATE KEY 19 2005
* 2006/0153,364 ASYMMETRIC KEY CRYPTOSYSTEM BASED ON SHARED KNOWLEDGE 10 2005
* 2006/0153,367 DIGITAL SIGNATURE SYSTEM BASED ON SHARED KNOWLEDGE 2 2005
* 2006/0153,369 PROVIDING CRYPTOGRAPHIC KEY BASED ON USER INPUT DATA 5 2005
7784106 Manufacturing unique devices that generate digital signatures 3 2009
* 2009/0158,029 MANUFACTURING UNIQUE DEVICES THAT GENERATE DIGITAL SIGNATURES 5 2009
 
MAXIM INTEGRATED PRODUCTS, INC. (1)
* 6064740 Method and apparatus for masking modulo exponentiation calculations in an integrated circuit 50 1997
 
OMNET ASSOCIATES A CA PARTNERSHIP (1)
* 4567600 Method and apparatus for maintaining the privacy of digital messages conveyed by public transmission 62 1982
 
National Semiconductor Corporation (1)
* 6097307 Security system with randomized synchronization code 7 1997
 
KOREA INFORMATION SECURITY AGENT (1)
* 2003/0012,386 Forward-secure commercial key escrow systems and escrowing methods thereof 36 2001
 
INTEL CORPORATION (1)
6253323 Object-based digital signatures 33 1996
 
Sync Up Technologies Corporation (1)
9002018 Encryption key exchange system and method 12 2011
 
Blue Spike, LLC (8)
* 5745569 Method for stega-cipher protection of computer code 388 1996
7346472 Method and device for monitoring and analyzing signals 159 2000
7660700 Method and device for monitoring and analyzing signals 86 2007
* 2008/0109,417 Method and device for monitoring and analyzing signals 51 2007
7949494 Method and device for monitoring and analyzing signals 81 2009
* 2010/0106,736 Method and device for monitoring and analyzing signals 47 2009
8214175 Method and device for monitoring and analyzing signals 96 2011
8712728 Method and device for monitoring and analyzing signals 0 2013
 
GRUMMAN CORPORATION (1)
* 5054066 Error correcting public key cryptographic method and program 61 1988
 
UT AUTOMOTIVE DEARBORN, INC. (2)
* 5646996 Automatic resynchronization of transmitter in the event of corrupted memory 14 1995
* 5696828 Random number generating system and process based on chaos 110 1995
 
MICROSOFT CORPORATION (2)
7809767 Architecture for distributed computing system and automated design, deployment, and management of distributed applications 0 2003
7565275 Model and system state synchronization 0 2005
 
ALGORITHMIC RESEARCH LTD. (1)
* 4964164 RSA computation method for efficient batch processing 37 1989
 
GENWORTH HOLDINGS, INC. (1)
7155578 Method and system for transferring files using file transfer protocol 2 2002
 
NCR CORPORATION (2)
* 4944007 Public key diversification method 34 1989
* 4935962 Method and system for authentication 162 1989
 
HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP (7)
* 5675649 Process for cryptographic key generation and safekeeping 65 1995
7231040 Multiprime RSA public key cryptosystem 2 1998
* RE40530 Public key cryptographic apparatus and method 0 2000
7120248 Multiple prime number generation using a parallel prime number search algorithm 5 2001
7016494 Multiple cryptographic key precompute and store 6 2001
* 2005/0190,912 MULTIPLE CRYPTOGRAPHIC KEY PRECOMPUTE AND STORE 21 2001
* 2002/0186,837 Multiple prime number generation using a parallel prime number search algorithm 1 2001
 
MICRON TECHNOLOGY, INC. (1)
* 4658094 Encryption apparatus and methods for raising a large unsigned integer to a large unsigned integer power modulo a large unsigned integer 33 1985
 
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (20)
8184803 Hash functions using elliptic curve cryptography 2 2008
8139765 Elliptical polynomial-based message authentication code 6 2008
* 2010/0166,176 Elliptical polynomial-based message authentication code 7 2008
* 2010/0166,174 Hash functions using elliptic curve cryptography 13 2008
8165287 Cryptographic hash functions using elliptic polynomial cryptography 1 2008
* 2010/0169,658 Elliptic curve-based message authentication code 6 2008
* 2010/0166,175 Cryptographic hash functions using elliptic polynomial cryptography 9 2008
8170203 Message authentication code with elliptic polynomial hopping 2 2008
* 2010/0169,644 Message authentication code with elliptic polynomial hopping 8 2008
8189771 Hash functions with elliptic polynomial hopping 1 2009
8385541 Method of performing elliptic polynomial cryptography with elliptic polynomial hopping 0 2010
8351601 Elliptic polynomial cryptography with secret key embedding 0 2010
8331558 Method of cipher block chaining using elliptic curve cryptography 0 2010
8332651 Method of generating a password protocol using elliptic polynomial cryptography 0 2010
8189775 Method of performing cipher block chaining using elliptic polynomial cryptography 1 2010
* 2011/0200,187 Elliptic polynomial cryptography with secret key embedding 6 2010
* 2011/0200,186 Method of cipher block chaining using elliptic curve cryptography 2 2010
* 2011/0200,185 Method of performing elliptic polynomial cryptography with elliptic polynomial hopping 8 2010
8509426 XZ-elliptic curve cryptography system and method 0 2010
8705740 Elliptic curve-based message authentication code system and method 0 2012
 
NEOPOST TECHNOLOGIES (1)
* 6041317 Postal security device incorporating periodic and automatic self implementation of public/private key pair 27 1997
 
FRAUD CONTROL SYSTEMS.COM CORPORATION (6)
8630942 Method of billing a purchase made over a computer network 0 2008
8229844 Method of billing a purchase made over a computer network 5 2008
8190513 Method of billing a purchase made over a computer network 4 2008
* 2009/0055,315 Method Of Billing A Purchase Made Over A Computer Network 13 2008
* 2009/0048,975 Method Of Billing A Purchase Made Over A Computer Network 12 2008
* 2009/0049,529 Method Of Billing A Purchase Made Over A Computer Network 14 2008
 
King Fahd University (1)
8699701 Method of performing XZ-elliptic curve cryptography for use with network security protocols 0 2010
 
VAN DETSAN NETWORKS LIMITED LIABILITY COMPANY (3)
* 4759063 Blind signature systems 198 1983
* 4991210 Unpredictable blind signature systems 81 1989
* 4996711 Selected-exponent signature systems 119 1989
 
CONTENTGUARD HOLDINGS, INC. (4)
* 8275716 Method and system for subscription digital rights management 2 2002
* 2002/0198,846 Method and system for subscription digital rights management 56 2002
8468098 Method and system for subscription digital rights management 0 2012
* 2012/0317,654 METHOD AND SYSTEM FOR SUBSCRIPTION DIGITAL RIGHTS MANAGEMENT 0 2012
 
AT&T Bell Laboratories (1)
* 5353351 Secure teleconferencing 78 1992
 
ENTEGRITY SOLUTIONS CORPORATION (1)
* 5745574 Security infrastructure for electronic transactions 229 1995
 
HELLMAN, MARTIN (1)
* 5872917 Authentication using random challenges 62 1997
 
JPMORGAN CHASE BANK, N.A. (2)
7899753 Systems and methods for time variable financial authentication 7 2003
9240089 Systems and methods for time variable financial authentication 0 2009
 
MICROSOFT TECHNOLOGY LICENSING, LLC (50)
* 2004/0210,623 Virtual network topology generation 82 2003
7636917 Network load balancing with host status information 23 2003
7613822 Network load balancing with session information 38 2003
7590736 Flexible network load balancing 38 2003
* 2004/0267,920 Flexible network load balancing 106 2003
* 2004/0268,358 Network load balancing with host status information 157 2003
7606929 Network load balancing with connection manipulation 7 2003
7567504 Network load balancing with traffic routing 46 2003
* 2005/0055,435 Network load balancing with connection manipulation 93 2003
8122106 Integrating design, deployment, and management phases for systems 7 2003
7890543 Architecture for distributed computing system and automated design, deployment, and management of distributed applications 33 2003
7289629 Primitives for fast secure hash functions and stream ciphers 1 2004
* 2005/0175,176 Primitives for fast secure hash functions and stream ciphers 1 2004
* 7778422 Security associations for devices 7 2004
7497379 Counterfeit and tamper resistant labels with randomly occurring features 27 2004
* 2005/0190,914 Counterfeit and tamper resistant labels with randomly occurring features 24 2004
7886041 Design time validation of systems 42 2004
* 2004/0193,388 Design time validation of systems 53 2004
7577844 Systems and methods for encoding randomly distributed features in an object 19 2004
* 2005/0246,529 Isolated persistent identity storage for authentication of computing devies 48 2004
7669235 Secure domain join for computing devices 5 2004
7305549 Filters to isolate untrusted ports of switches 30 2004
7305561 Establishing computing trust with a staging area 38 2004
7336806 Iris-based biometric identification 23 2004
* 2005/0125,212 System and method for designing a logical model of a distributed computer system and deploying physical resources according to the logical model 48 2004
7792931 Model-based system provisioning 8 2005
8489728 Model-based system monitoring 3 2005
7802144 Model-based system monitoring 29 2005
7797147 Model-based system monitoring 5 2005
8549513 Model-based virtual system provisioning 9 2005
7890951 Model-based provisioning of test environments 41 2005
* 2007/0016,393 Model-based propagation of attributes 3 2005
* 2007/0006,218 Model-based virtual system provisioning 34 2005
* 2006/0037,002 Model-based provisioning of test environments 43 2005
* 2006/0025,985 Model-Based system management 119 2005
7684964 Model and system state synchronization 4 2005
7941309 Modeling IT operations/policies 2 2005
* 2007/0112,847 Modeling IT operations/policies 61 2005
7630877 Architecture for distributed computing system and automated design, deployment, and management of distributed applications 60 2005
* 2006/0271,341 Architecture for distributed computing system and automated design, deployment, and management of distributed applications 58 2005
7574343 System and method for logical modeling of distributed computer systems 7 2006
7689676 Model-based policy application 22 2007
* 2008/0059,214 Model-Based Policy Application 41 2007
8127133 Labeling of data objects to apply and enforce policies 2 2007
* 2008/0184,329 LABELING OF DATA OBJECTS TO APPLY AND ENFORCE POLICIES 5 2007
* 2008/0288,622 Managing Server Farms 2 2007
7444007 Iris-based biometric identification 10 2007
* 2008/0025,575 Iris-Based Biometric Identification 7 2007
7878398 Counterfeit and tamper resistant labels with randomly occurring features 4 2009
9317270 Model-based virtual system provisioning 0 2013
 
FUJITSU SIEMENS COMPUTERS GMBH (1)
* 5323146 Method for authenticating the user of a data station connected to a computer system 46 1992
 
Wisteria Trading, Inc. (1)
7991188 Optimization methods for the insertion, protection, and detection of digital watermarks in digital data 4 2007
 
GOOGLE INC. (2)
7320073 Secure method for roaming keys and certificates 12 2003
* 2004/0199,774 Secure method for roaming keys and certificates 2 2003
 
The Trustees of Princeton University (1)
* 2004/0250,073 Protocol for hybrid authenticated key establishment 8 2003
 
GENWORTH FINANCIAL, INC. (1)
* 2004/0133,699 System and method for performing data transfer 1 2002
 
CROWLEY, JOHN J. (1)
* 5375169 Cryptographic key management method and apparatus 124 1993
 
KEYBYTE TECHNOLOGIES, INC. (1)
* 6011847 Cryptographic access and labeling system 82 1995
 
GENERAL ELECTRIC COMPANY (2)
* 5204901 Public key cryptographic mechanism 24 1991
* 5239584 Method and apparatus for encryption/authentication of data in energy metering applications 61 1991
 
VERIZON PATENT AND LICENSING INC. (7)
* 5557678 System and method for centralized session key distribution, privacy enhanced messaging and information distribution using a split private key public cryptosystem 149 1994
* 5588061 System and method for identity verification, forming joint signatures and session key agreement in an RSA public cryptosystem 50 1994
* 5535276 Yaksha, an improved system and method for securing communications using split private key asymmetric cryptography 367 1994
* 5748735 Securing E-mail communications and encrypted file storage using yaksha split private key asymmetric cryptography 150 1996
* 5737419 Computer system for securing communications using split private key asymmetric cryptography 109 1996
* 5838792 Computer system for centralized session key distribution, privacy enhanced messaging and information distribution using a split private key public cryptosystem 96 1996
* 5905799 Programmed computer for identity verification, forming joint signatures and session key agreement in an RSA public cryptosystem 32 1996
 
PREMINOS CORPORATION (1)
* 5812669 Method and system for providing secure EDI over an open network 100 1995
 
THOMSON LICENSING (2)
* 7545932 Secure authenticated channel 4 2004
* 2006/0093,138 Secure authenticated channel 18 2004
 
COMCAST CABLE COMMUNICATIONS, LLC (3)
* 5787172 Apparatus and method for establishing a cryptographic link between elements of a system 233 1994
* 6148400 Apparatus and method for establishing a crytographic link between elements of a system 41 1998
6456716 Apparatus and method for establishing a crytographic link between elements of a system 20 2000
 
ERICSSON INC. (1)
* 5499295 Method and apparatus for feature authorization and software copy protection in RF communications devices 147 1993
 
DIGITAL RIVER, INC. (14)
* 5903647 Self-launching encrypted digital information distribution system 63 1995
* 5883954 Self-launching encrypted try before you buy software distribution system 60 1995
* 5883955 On-line try before you buy software distribution system 142 1995
* 5870543 System for preventing unauthorized copying of active software 88 1997
* 5907617 Try before you buy software distribution and marketing system 94 1997
* 5887060 Central database system for automatic software program sales 36 1997
7058597 Apparatus and method for adaptive fraud screening for electronic commerce transactions 14 1999
7617124 Apparatus and method for secure downloading of files 5 2000
7165051 Electronic commerce system and method for detecting fraud 80 2005
* 2005/0154,676 Electronic commerce system method for detecting fraud 18 2005
8271396 Electronic commerce system and method for detecting fraud 2 2006
7881972 Electronic commerce system and method for detecting fraud 1 2006
8050980 Secure downloading of a file from a network system and method 1 2009
* 2010/0017,417 Secure Downloading of a File from a Network System and Method 1 2009
 
UNIKEN INC. (4)
7949867 Secure communications 4 2006
* 2008/0022,091 Secure Communications 0 2006
7949869 Establishing relative identity 3 2010
* 2010/0119,063 Establishing Relative Identity 1 2010
 
CORIANT OY (2)
* 6422461 Method and system for ensuring connection of a module to an electronic apparatus 0 1999
* 6739504 Method and system for ensuring connection of a module to an electronic apparatus 0 2002
 
The Boeing Company (1)
* 2008/0304,669 RECIPIENT-SIGNED ENCRYPTION CERTIFICATES FOR A PUBLIC KEY INFRASTRUCTURE 8 2007
 
PREVIEW SOFTWARE, INC. (1)
* 4658093 Software distribution system 866 1983
 
NEXT SOFTWARE, INC. (2)
* 5159632 Method and apparatus for public key exchange in a cryptographic system 128 1991
* 5271061 Method and apparatus for public key exchange in a cryptographic system 89 1992
 
WISTRON CORPORATION (5)
6574609 Secure electronic content management system 331 1998
6389538 System for tracking end-user electronic content usage 538 1998
6611812 Secure electronic content distribution on CDS and DVDs 298 1999
6389403 Method and apparatus for uniquely identifying a customer purchase in an electronic distribution system 205 1999
6983371 Super-distribution of protected digital content 171 2000
 
TECSEC INCORPORATED (12)
* 5369707 Secure network method and apparatus 201 1993
* 5369702 Distributed cryptographic object method 243 1993
* 5717755 Distributed cryptographic object method 70 1994
* 5680452 Distributed cryptographic object method 118 1995
* 5898781 Distributed cryptographic object method 66 1997
6694433 XML encryption scheme 19 1999
7095852 Cryptographic key split binder for use with tagged data elements 69 2001
* 2004/0208,316 Cryptographic key split binder for use with tagged data elements 5 2001
7079653 Cryptographic key split binding process and apparatus 19 2002
* 2003/0039,358 Cryptographic key split binding process and apparatus 6 2002
8077870 Cryptographic key split binder for use with tagged data elements 8 2010
8712046 Cryptographic key split combiner 0 2012
 
E-CONTACT TECHNOLOGIES LLC (1)
* 5189700 Devices to (1) supply authenticated time and (2) time stamp and authenticate digital documents 112 1991
 
ZHIGU HOLDINGS LIMITED (5)
7606898 System and method for distributed management of shared computers 10 2000
7711121 System and method for distributed management of shared computers 0 2004
* 2005/0091,078 System and method for distributed management of shared computers 29 2004
7739380 System and method for distributed management of shared computers 1 2004
* 2005/0097,097 System and method for distributed management of shared computers 34 2004
 
SAFENET, INC. (2)
* 4891781 Modulo arithmetic processor chip 32 1988
* 5210710 Modulo arithmetic processor chip 33 1990
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (4)
* 5124117 Cryptographic key distribution method and system 93 1991
* 5272755 Public key cryptosystem with an elliptic curve 104 1992
* 5351297 Method of privacy communication using elliptic curves 48 1993
* 5442707 Method for generating and verifying electronic signatures and privacy communication using elliptic curves 96 1993
 
STEVEN M. HOFFBERG 2004-1 GRAT (4)
8369967 Alarm system controller and a method for controlling an alarm system 16 2011
8364136 Mobile system, a method of operating mobile system and a non-transitory computer readable medium for a programmable control of a mobile system 30 2011
8892495 Adaptive pattern recognition based controller apparatus and method and human-interface therefore 1 2013
9535563 Internet appliance system and method 0 2013
 
AT&T CORP. (1)
* 6058187 Secure telecommunications data transmission 62 1997
 
UNIVERSITY OF SOUTHERN CALIFORNIA (1)
* 7280663 Encryption system based on crossed inverse quasigroups 3 2000
 
PHILIPS ELECTRONICS NORTH AMERICA CORPORATION (1)
* 6141422 Secure cryptographic multi-exponentiation method and coprocessor subsystem 13 1997
* Cited By Examiner