| 5265164 |
Cryptographic facility environment backup/restore and replication in a public key cryptosystem |
Stephen M. Matyas, Donald B. Johnson, An V. Le, Rostislaw Prymak, William C. Martin +1 more |
1993-11-23 |
| 5200999 |
Public key cryptosystem key management based on control vectors |
Stephen M. Matyas, Donald B. Johnson, An V. Le, Rostislaw Prymak, William C. Martin +1 more |
1993-04-06 |
| 5164988 |
Method to establish and enforce a network cryptographic security policy in a public key cryptosystem |
Stephen M. Matyas, Donald B. Johnson, An V. Le, Rostislaw Prymak, William C. Martin +1 more |
1992-11-17 |
| 5148481 |
Transaction system security method and apparatus |
Dennis G. Abraham, Steven G. Aden, Todd W. Arnold, Steven W. Neckyfarow |
1992-09-15 |
| 5142578 |
Hybrid public key algorithm/data encryption algorithm key distribution method based on control vectors |
Stephen M. Matyas, Donald B. Johnson, An V. Le, Rostislaw Prymak, John D. Wilkins +1 more |
1992-08-25 |
| 5073934 |
Method and apparatus for controlling the use of a public key, based on the level of import integrity for the key |
Stephen M. Matyas, Donald B. Johnson, An V. Le, William C. Martin, Rostislaw Prymak +1 more |
1991-12-17 |
| 5048085 |
Transaction system security method and apparatus |
Dennis G. Abraham, Steven G. Aden, Todd W. Arnold, Steven W. Neckyfarow |
1991-09-10 |
