| |
 |
|
Class Information
Number: 380/44
Name: Cryptography > Key management > Having particular key generator
Description: Subject matter including a detail of a predetermined digital sequence signal generator.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4935961 |
Method and apparatus for the generation and synchronization of cryptographic keys |
Jun. 19, 1990 |
| 4933971 |
Method for encrypting transmitted data using a unique key |
Jun. 12, 1990 |
| 4926475 |
Data encryption key failure monitor |
May. 15, 1990 |
| 4910776 |
Encryption printed circuit board |
Mar. 20, 1990 |
| 4897876 |
Method of and an arrangement for digital signal encryption |
Jan. 30, 1990 |
| 4888802 |
System and method for providing for secure encryptor key management |
Dec. 19, 1989 |
| 4887296 |
Cryptographic system for direct broadcast satellite system |
Dec. 12, 1989 |
| 4878246 |
Method and apparatus for generating encryption/decryption key |
Oct. 31, 1989 |
| 4860353 |
Dynamic feedback arrangement scrambling technique keystream generator |
Aug. 22, 1989 |
| 4853962 |
Encryption system |
Aug. 1, 1989 |
| 4819267 |
Solid state key for controlling access to computer systems and to computer software and/or for secure communications |
Apr. 4, 1989 |
| 4809327 |
Encrtption of messages employing unique control words and randomly chosen encryption keys |
Feb. 28, 1989 |
| 4807290 |
Self-synchronizing scrambler |
Feb. 21, 1989 |
| 4803725 |
Cryptographic system using interchangeable key blocks and selectable key fragments |
Feb. 7, 1989 |
| 4797928 |
Encryption printed circuit board |
Jan. 10, 1989 |
| 4797921 |
System for enciphering or deciphering data |
Jan. 10, 1989 |
| 4796297 |
Device for calculating a charge for a charged information signal with errors avoided in a report of the charge |
Jan. 3, 1989 |
| 4794644 |
Method of secured communications in a telecommunications system |
Dec. 27, 1988 |
| 4782529 |
Decryption of messages employing unique control words and randomly chosen decryption keys |
Nov. 1, 1988 |
| 4780905 |
Computer data encryption system |
Oct. 25, 1988 |
| 4771462 |
Communication port encryption/decryption method and apparatus |
Sep. 13, 1988 |
| 4771458 |
Secure data packet transmission system and method |
Sep. 13, 1988 |
| 4763357 |
Method and apparatus for providing secure electronic communications |
Aug. 9, 1988 |
| 4760599 |
Data encryptor |
Jul. 26, 1988 |
| 4760598 |
Coded data transmission system |
Jul. 26, 1988 |
| 4760600 |
Cipher system |
Jul. 26, 1988 |
| 4759063 |
Blind signature systems |
Jul. 19, 1988 |
| 4757535 |
System for encrypted information transmission |
Jul. 12, 1988 |
| 4747139 |
Software security method and systems |
May. 24, 1988 |
| 4744104 |
Self-synchronizing scrambler |
May. 10, 1988 |
| 4723283 |
Data transmission system |
Feb. 2, 1988 |
| 4712238 |
Selective-subscription descrambling |
Dec. 8, 1987 |
| 4703503 |
Cryptographic system using pseudocomplements of vector Boolean algebra |
Oct. 27, 1987 |
| 4688250 |
Apparatus and method for effecting a key change via a cryptographically protected link |
Aug. 18, 1987 |
| 4679236 |
Identification verification method and system |
Jul. 7, 1987 |
| 4677670 |
Paired-secure message identification controller for computers and the like |
Jun. 30, 1987 |
| 4675477 |
Electronic device providing automatic permutations of a Vigenere Square |
Jun. 23, 1987 |
| 4669118 |
Self-synchronizing descrambler |
May. 26, 1987 |
| 4668103 |
Polygraphic encryption-decryption communications system |
May. 26, 1987 |
| 4669089 |
Suppressed clock pulse-duration modulator for direct sequence spread spectrum transmission systems |
May. 26, 1987 |
| 4654704 |
Analog television with regenerable and encryptable signals |
Mar. 31, 1987 |
| 4649549 |
Apparatus for synchronizing linear PN sequences |
Mar. 10, 1987 |
| 4633037 |
Generation of identification keys |
Dec. 30, 1986 |
| 4555591 |
Integrated circuit devices for secure data encryption |
Nov. 26, 1985 |
| 4549308 |
Secure mobile radio telephony |
Oct. 22, 1985 |
| 4531020 |
Multi-layer encryption system for the broadcast of encrypted information |
Jul. 23, 1985 |
| 4447672 |
Device for encrypting each input data bit by at least one keying bit decided by a code pattern and a bit pattern of a predetermined number of preceding encrypted bits |
May. 8, 1984 |
| 4434323 |
Scrambler key code synchronizer |
Feb. 28, 1984 |
| 4434322 |
Coded data transmission system |
Feb. 28, 1984 |
| 4431865 |
Digital signal enciphering and deciphering apparatus and system |
Feb. 14, 1984 |
|
|
|
