US Patent No: 7,016,499

Number of patents in Portfolio can not be more than 2000

Secure ephemeral decryptability

ALSO PUBLISHED AS: 20020191797

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Abstract

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A method and apparatus for securely communicating ephemeral information from a first node to a second node. In a first embodiment, the first node encodes and transmits an ephemeral message encrypted at least in part with an ephemeral key, from the first node to the second node. Only the second node has available to it the information that is needed to achieve decryption by an ephemeral key server of a decryption key that is needed to decrypt certain encrypted payload information contained within the message communicated from the first node to the second node. In a second embodiment the first node transmits to the second node an ephemeral message that is encrypted at least in part with an ephemeral key. The ephemeral message includes enough information to permit the second node to communicate at least a portion of the message to an ephemeral key server and for the ephemeral key server to verify that the second node is an authorized decryption agent for the message. After verifying that the second node is an authorized decryption agent for the message, the ephemeral key server returns to the second node an encrypted decryption key that is needed to decrypt the encrypted message. The ephemeral message may comprise an encrypted decryption key that may be used after decryption of the decryption key to decrypt other encrypted information communicated to the second node.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SUN MICROSYSTEMS, INC.SANTA CLARA, CA8585

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 4218

Cited Art Landscape

Patent Info (Count) # Cites Year
 
GTE CYBERTRUST SOLUTIONS INCORPORATED (1)
6,308,277 Virtual certificate authority 68 1999
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
6,185,685 Security method and system for persistent storage and communications on computer network systems and computer network systems employing the same 49 1997
 
LIOUID AUDIO, INC. (1)
6,367,019 Copy security for portable music players 176 1999
 
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 120 1997
 
PREMINOS CORPORATION (1)
* 5,812,669 Method and system for providing secure EDI over an open network 92 1995
 
SUN MICROSYSTEMS, INC. (1)
* 2002/0136,410 Method and apparatus for extinguishing ephemeral keys 31 2001
 
VERIZON PATENT AND LICENSING INC. (1)
5,737,419 Computer system for securing communications using split private key asymmetric cryptography 97 1996
 
VISA INTERNATIONAL SERVICE ASSOCIATION (1)
6,240,187 Key replacement in a public key cryptosystem 118 1998
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
SUN MICROSYSTEMS, INC. (3)
* 7,409,545 Ephemeral decryption utilizing binding functions 7 2003
* 7,774,594 Method and system for providing strong security in insecure networks 1 2006
8,150,038 Revocation of a system administrator in an encrypted file system 2 2007
 
VOLTAGE SECURITY, INC. (2)
* 7,580,521 Identity-based-encryption system with hidden public key attributes 7 2003
7,961,879 Identity-based-encryption system with hidden public key attributes 1 2009
 
HONEYWELL INTERNATIONAL INC. (1)
* 8,280,057 Method and apparatus for providing security in wireless communication networks 0 2008
 
OPEN INVENTION NETWORK, LLC (1)
* 8,676,988 Systems and methods for secure data exchange in a distributed collaborative application 0 2009
 
ROCKWELL COLLINS, INC. (1)
* 7,620,187 Method and apparatus for ad hoc cryptographic key transfer 1 2005
 
Skyobox security Inc. (1)
* 8,272,061 Method for evaluating a network 4 2007
* Cited By Examiner

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 21, 2017
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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
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