| 4549308 |
Secure mobile radio telephony |
| Oct-22-1985 |
An arrangement for generating an encryption key for use in encrypting communications between a mobile radio telephone unit and a base station is disclosed which can be readily changeable in real time.... |
| 4281216 |
Key management for encryption/decryption systems |
| Jul-28-1981 |
In a data encryption/decryption system providing for security of data communications channels, a sub-system for generating, transporting encryption/decryption keys and for introducing those keys into the... |
