US Patent Application No: 2002/0129,261

Number of patents in Portfolio can not be more than 2000

Apparatus and method for encrypting and decrypting data recorded on portable cryptographic tokens

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Importance

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Abstract

A number of client systems receive a common secure transfer key pair from a server during initialization. The secure transfer private key is encrypted in the server with a platform public key sent to the server from the client system. Each client system is then able to encrypt data, using a secure transfer public key, to be recorded on a computer readable medium, and subsequently to decrypt such data using a secure transfer private key. Preferably, each client system includes an embedded security subsystem (ESS) performing cryptographic processes and providing secure key storage. Then, the secure transfer private key is stored as encrypted, and is decrypted using a private key within the ESS. Preferably, the platform private key is also stored encrypted, to be decrypted within the ESS using a hardware private key.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
INTERNATIONAL BUSINESS MACHINES CORPORATIONARMONK, NY68841

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cromer, Daryl Carvis Apex, NC 224 1712
Locker, Howard Jeffrey Cary, NC 170 779
Trotter, Andy Lloyd Raleigh, NC 20 143
Ward, James Peter Raleigh, NC 113 1643

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (3)
7,890,758 Apparatus and method for generating keys in a network computing environment 0 2003
7,751,568 Method for securely creating an endorsement certificate utilizing signing key pairs 2 2003
8,200,972 Encryption of security-sensitive data by re-using a connection 0 2010
 
MICROSOFT CORPORATION (3)
8,284,942 Persisting private/public key pairs in password-encrypted files for transportation to local cryptographic store 0 2004
7,562,395 System and method for accessing protected content in a rights-management architecture 2 2005
8,032,943 Accessing protected content in a rights-management architecture 0 2009
 
INTEL CORPORATION (2)
7,318,235 Attestation using both fixed token and portable token 12 2002
7,809,957 Trusted platform module for generating sealed data 4 2005
 
FELICA NETWORKS, INC. (1)
7,882,208 Information management apparatus, information management method, and program for managing an integrated circuit 0 2005
 
FUJI XEROX CO., LTD. (1)
7,770,026 Document management system, information processing device and method, and computer program 0 2005
 
LENOVO (SINGAPORE) PTE LTD. (1)
8,024,579 Authenticating suspect data using key tables 1 2006
 
NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO (1)
7,565,554 Method and system for a service process to provide a service to a client 51 2002
 
NXP B.V. (1)
7,925,892 Method to grant modification rights for a smart card 0 2004