| 1 2 3 |
| Patent ID | Title | Date Filed |
| 7054447 | Method and apparatus for periodically removing invalid public keys from a public key server
| November 27, 2000 |
| 7051206 | Self-authentication of value documents using digital signatures
| November 7, 2000 |
| 7051204 | Methods and system for providing a public key fingerprint list in a PK system
| October 23, 2002 |
| 7050589 | Client controlled data recovery management
| August 17, 2001 |
| 7047416 | Account-based digital signature (ABDS) system
| August 6, 2001 |
| 7047414 | Managing database for reliably identifying information of device generating digital signatures
| February 1, 2003 |
| 7039946 | Piggy-backed key exchange protocol for providing secure, low-overhead browser connections when a client requests a server to propose a message encoding scheme
| October 12, 1999 |
| 7032112 | Account authority digital signature (AADS) system using transactional account information
| August 25, 2004 |
| 7031469 | Optimized enveloping via key reuse
| December 27, 2001 |
| 7028185 | Managing database for identifying to recipients security features of devices generating digital signatures
| February 1, 2003 |
| 7020281 | Timing attack resistant cryptographic system
| January 18, 2001 |
| 7016500 | Code exchange protocol
| March 18, 1999 |
| 7010697 | System for dynamically encrypting information for secure internet commerce and providing embedded fulfillment software
| April 22, 2002 |
| 7007170 | System, method, and apparatus for securely providing content viewable on a secure device
| January 20, 2004 |
| 7003117 | Identity-based encryption system for secure data distribution
| February 5, 2003 |
| 6999948 | Memory card
| August 9, 2000 |
| 6996711 | Certification validation system
| February 28, 2001 |
| 6988204 | System and method for key distribution and network connectivity
| April 16, 2002 |
| 6987855 | Operational optimization of a shared secret Diffie-Hellman key exchange among broadcast or multicast groups
| November 17, 2003 |
| 6986045 | Single algorithm cipher suite for messaging
| August 17, 2001 |
| 6986044 | Method for group unit encryption/decryption, and method and apparatus for writing signature
| August 31, 1999 |
| 6983376 | Method and apparatus for providing privacy of user identity and characteristics in a communication system
| October 16, 2001 |
| 6983368 | Linking public key of device to information during manufacture
| August 6, 2001 |
| 6981154 | Account authority digital signature (AADS) accounts
| December 5, 2001 |
| 6980660 | Method and apparatus for efficiently initializing mobile wireless devices
| May 21, 1999 |
| 6978369 | Person-centric account-based digital signature system
| February 3, 2003 |
| 6978025 | Method and apparatus for managing public keys through a server
| November 27, 2000 |
| 6970566 | Network system and method for secure communication service
| November 8, 1999 |
| 6959390 | Data processing system and method for maintaining secure user private keys in non-secure storage
| March 3, 1999 |
| 6959381 | Central key authority (CKA) database for user accounts in ABDS system
| February 1, 2003 |
| 6957336 | Establishing initial PuK-linked account database
| February 1, 2003 |
| 6956950 | Computer readable medium having a private key encryption program
| December 27, 2000 |
| 6950940 | ABDS method utilizing security information in authenticating entity access
| January 31, 2003 |
| 6941457 | Establishing a new shared secret key over a broadcast channel for a multicast group based on an old shared secret key
| June 30, 2000 |
| 6941454 | System and method of sending and receiving secure data with a shared key
| May 11, 2000 |
| 6940980 | High security cryptosystem
| December 19, 2000 |
| 6938156 | ABDS system and verification status for authenticating entity access
| January 31, 2003 |
| 6934392 | Split-key key-agreement protocol
| July 19, 2000 |
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