Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7174563 | Computer network security system and method having unilateral enforceable security policy provision | Michael Brownlie, Stephen Hillier | 2007-02-06 |
| 7010582 | Systems and methods providing interactions between multiple servers and an end use device | Ray Cheng, Stephen Hillier | 2006-03-07 |
| 6694434 | Method and apparatus for controlling program execution and program distribution | William G. McGee, Glenn C. Langford | 2004-02-17 |
| 6567914 | Apparatus and method for reducing transmission bandwidth and storage requirements in a cryptographic security system | Michael Just | 2003-05-20 |
| 6393568 | Encryption and decryption system and method with content analysis provision | Michel Ranger | 2002-05-21 |
| 6370249 | Method and apparatus for public key management | — | 2002-04-09 |
| 6341164 | Method and apparatus for correcting improper encryption and/or for reducing memory storage | Lee Dilkie | 2002-01-22 |
| 6317829 | Public key cryptography based security system to facilitate secure roaming of users | — | 2001-11-13 |
| 6229894 | Method and apparatus for access to user-specific encryption information | Timothy Edward Moses | 2001-05-08 |
| 6215872 | Method for creating communities of trust in a secure communication system | — | 2001-04-10 |
| 6202157 | Computer network security system and method having unilateral enforceable security policy provision | Michael Brownlie, Stephen Hillier | 2001-03-13 |
| 6134327 | Method and apparatus for creating communities of trust in a secure communication system | — | 2000-10-17 |
| 6134550 | Method and apparatus for use in determining validity of a certificate in a communication system employing trusted paths | Michael Wiener, Ian Curry | 2000-10-17 |
| 6128740 | Computer security system and method with on demand publishing of certificate revocation lists | Ian Curry | 2000-10-03 |
| 6092201 | Method and apparatus for extending secure communication operations via a shared list | James A. Turnbull, Ian Curry, Stephen Hillier | 2000-07-18 |
| 5850443 | Key management system for mixed-trust environments | Michael Wiener | 1998-12-15 |
| 5699431 | Method for efficient management of certificate revocation lists and update information | Warwick Ford, Stephen Hillier, Josanne Otway | 1997-12-16 |
| 5664016 | Method of building fast MACS from hash functions | Bart Preneel | 1997-09-02 |