US Patent No: 7,409,545

Number of patents in Portfolio can not be more than 2000

Ephemeral decryption utilizing binding functions

ALSO PUBLISHED AS: 20050066175

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Importance

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Abstract

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A method and system is disclosed for utilizing an ephemeral encryption or decryption agent so as to preclude access by the ephemeral encryption agent or decryption agent, respectively, to the information being ephemerally encrypted or decrypted. To preclude access by the ephemeral encryption agent, a blinding function is applied to the information prior to forwarding such information to the encryption agent for encryption. To preclude access to the information by the ephemeral decryption agent, a blinding function is applied to the encrypted information prior to forwarding the encrypted information to the decryption agent for decryption. Once the information has been returned, the information is unblinded, leaving an encrypted or decrypted message respectively.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SUN MICROSYSTEMS, INC.SANTA CLARA, CA9289

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Perlman, Radia J Acton, MA 123 4138

Cited Art Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (4)
5,347,580 Authentication method and system with a smartcard 259 1993
5,491,750 Method and apparatus for three-party entity authentication and key distribution using message authentication codes 106 1993
6,185,685 Security method and system for persistent storage and communications on computer network systems and computer network systems employing the same 44 1997
6,877,092 Apparatus, method, and computer program product for achieving interoperability between cryptographic key recovery enabled and unaware systems 1 2002
 
SUN MICROSYSTEMS, INC. (3)
6,363,480 Ephemeral decryptability 66 1999
2002/0136,410 Method and apparatus for extinguishing ephemeral keys 30 2001
7,016,499 Secure ephemeral decryptability 9 2001
 
CRYPTOGRAPHY RESEARCH, INC. (1)
6,278,783 Des and other cryptographic, processes with leak minimization for smartcards and other cryptosystems 126 1999
 
GLOBALCERTS, LC (1)
7,082,536 System and method for computerized global messaging encryption 36 2001
 
GTE CYBERTRUST SOLUTIONS INCORPORATED (1)
6,308,277 Virtual certificate authority 68 1999
 
LIOUID AUDIO, INC. (1)
6,367,019 Copy security for portable music players 160 1999
 
LUCENT TECHNOLOGIES INC. (1)
2003/0059,041 Methods and apparatus for two-party generation of DSA signatures 5 2002
 
MEMJET TECHNOLOGY LIMITED (1)
6,246,970 Method for making a chip tamper-resistant 24 1998
 
MICROSOFT CORPORATION (1)
6,055,314 System and method for secure purchase and delivery of video content programs 522 1996
 
MOTOROLA MOBILITY LLC (1)
6,009,173 Encryption and decryption method and apparatus 113 1997
 
PERIMETER LABS, INC. (1)
6,044,462 Method and apparatus for managing key revocation 116 1997
 
PREMINOS CORPORATION (1)
5,812,669 Method and system for providing secure EDI over an open network 90 1995
 
TECSEC, INCORPORATED (1)
7,178,030 Electronically signing a document 33 2001
 
VERIZON PATENT AND LICENSING INC. (1)
5,737,419 Computer system for securing communications using split private key asymmetric cryptography 91 1996
 
VERSITECH LIMITED (1)
2003/0161,472 Server-assisted public-key cryptographic method 4 2002
 
VISA INTERNATIONAL SERVICE ASSOCIATION (1)
6,240,187 Key replacement in a public key cryptosystem 113 1998
 
ZERO-KNOWLEDGE SYSTEMS INTERNATIONAL, INC. (1)
5,606,617 Secret-key certificates 205 1994

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
NETAPP, INC. (2)
7,958,356 System and method for establishing a shared secret among nodes of a security appliance 1 2006
8,285,993 System and method for establishing a shared secret among nodes of a security appliance 0 2011
 
DIGIMARC CORPORATION (1)
8,127,137 Watermark payload encryption for media including multiple watermarks 5 2005
 
EMC CORPORATION (1)
8,700,899 Forward-secure key unlocking for cryptographic devices 0 2012
 
OPEN INVENTION NETWORK, LLC (1)
8,676,988 Systems and methods for secure data exchange in a distributed collaborative application 0 2009
 
SUN MICROSYSTEMS, INC. (1)
7,660,423 Method and apparatus for maintaining ephemeral keys in limited space 0 2006

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Feb 5, 2016
11.5 Year Payment $7400.00 $3700.00 $1850.00 Feb 5, 2020
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00