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| Patent ID | Title | Date Filed |
| 7020773 | Strong mutual authentication of devices
| July 17, 2000 |
| 6993134 | Key exchange via a portable remote control device
| August 9, 1999 |
| 6990198 | Apparatus and method for securing communication information in CDMA communication system
| May 24, 2001 |
| 6988204 | System and method for key distribution and network connectivity
| April 16, 2002 |
| 6986046 | Method and apparatus for managing secure collaborative transactions
| May 12, 2000 |
| 6975726 | Data transmission system
| April 22, 2005 |
| 6957329 | System for encrypting data from multiple multimedia applications and method thereof
| February 5, 2001 |
| 6944300 | Method for migrating a base chip key from one computer system to another
| June 22, 2001 |
| 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 |
| 6931128 | Methods and systems for generating encryption keys using random bit generators
| January 16, 2001 |
| 6928551 | Method and apparatus for selectively denying access to encoded data
| October 27, 2000 |
| 6922774 | Device for and method of secure computing using virtual machines
| May 14, 2001 |
| 6912657 | Method and arrangement in a communication network
| February 20, 2001 |
| 6912654 | Secret key generating method, encryption method, cryptographic communication method and cryptographic communication system
| January 23, 2001 |
| 6912285 | Mechanism for efficient private bulk messaging
| February 26, 2001 |
| 6907127 | Hierarchical key management encoding and decoding
| July 10, 2000 |
| 6882730 | Method for secure distribution and configuration of asymmetric keying material into semiconductor devices
| June 29, 2000 |
| 6868141 | METHOD AND TELEPHONE AGENT SYSTEM FOR GENERATING A MESSAGE RECORD OF AT LEAST A PART OF A CONVERSATION BETWEEN TELEPHONE AGENTS AND FOR TRANSMITTING INFORMATION REGARDING THE MESSAGE RECORD TO THE TELEPHONE AGENT REQUESTING IT
| August 22, 2002 |
| 6854059 | Method and apparatus for medium access control in powerline communication network systems
| June 6, 2001 |
| 6850620 | Method for preventing key share attacks
| December 26, 2000 |
| 6848050 | System and method for alternative encryption techniques
| April 15, 1999 |
| 6826699 | Method and apparatus for performing authentication and key exchange protocols with multiple sink devices
| October 19, 2000 |
| 6813357 | Exclusive key sharing method
| January 1, 0001 |
| 6810122 | Secret sharing system and storage medium
| January 20, 2000 |
| 6772339 | Mix and match: a new approach to secure multiparty computation
| March 13, 2000 |
| 6738907 | Maintaining a soft-token private key store in a distributed environment
| April 13, 1998 |
| 6731776 | Image recording apparatus
| October 19, 2000 |
| 6731755 | Split-key cryptographic system and method
| December 29, 1999 |
| 6728878 | Deferred billing, broadcast, electronic document distribution system and method
| August 6, 2001 |
| 6728379 | Information processor and information processing method
| June 28, 1999 |
| 6721887 | Data copyright management system
| May 23, 2002 |
| 6711264 | Security improvement method and security system
| October 8, 1999 |
| 6697490 | Automatic resynchronization of crypto-sync information
| October 19, 1999 |
| 6678821 | Method and system for restricting access to the private key of a user in a public key infrastructure
| March 23, 2000 |
| 6674861 | Digital audio watermarking using content-adaptive, multiple echo hopping
| December 2, 1999 |
| 6668321 | Verification of identity of participant in electronic communication
| January 29, 2002 |
| 6640303 | System and method for encryption using transparent keys
| September 22, 2000 |
| 6618807 | Computer system with an external and portable electronic key for encryption and decryption processes
| March 24, 1999 |
| 6567913 | Selective security level certificate meter
| December 24, 1998 |
| 6539094 | Data transmission apparatus and method, data receiving apparatus and method, and data transmitting/receiving system and method
| April 14, 1998 |
| 6529602 | Method and apparatus for the secure storage of audio signals
| August 19, 1997 |
| 6480608 | Method for exchanging cryptographic keys in an ATM network using multiple virtual paths or circuits
| April 23, 1998 |
| 6477254 | Network system using a threshold secret sharing method
| February 9, 1999 |
| 6463536 | Data copyright management system
| June 5, 2001 |
| 6453296 | Electronic credit system and communication apparatus
| January 31, 1997 |
| 6449473 | Security method for transmissions in telecommunication networks
| March 9, 2000 |
| 6438235 | Media content protection utilizing public key cryptography
| August 5, 1998 |
| 6438234 | Quantum cryptography device and method
| March 5, 1999 |
| 6415032 | Encryption technique using stream cipher and block cipher
| December 1, 1998 |
| 6405319 | Verification system for information transfers over a computer network
| January 27, 2000 |
| 6397307 | Method and system for mirroring and archiving mass storage
| February 23, 1999 |
| 6396928 | Digital message encryption and authentication
| October 24, 1997 |
| 6393128 | System for broadcasting data signals in a secure manner
| August 31, 1999 |
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