| Patents for H04L 9 - Arrangements for secret or secure communication (111,914) |
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| 05/31/1994 | US5317637 Data exchange system with a check of the apparatus for its authentication status |
| 05/26/1994 | WO1994011969A1 Apparatus and method for providing data security in a computer system having a removable memory |
| 05/26/1994 | DE4305067C1 Synchronising data bit stream deciphering device - using successive bits of synchronisation bit pattern as mode switching criterion |
| 05/25/1994 | EP0598528A2 Identification system using magnetic coupling |
| 05/25/1994 | EP0598357A1 Process for transmitting and/or storing information |
| 05/25/1994 | EP0598036A1 Nonlinear dynamic substitution devices and methods for block substitutions. |
| 05/24/1994 | US5315658 Fair cryptosystems and methods of use |
| 05/24/1994 | US5315656 System for protecting documents or objects enclosed in a tamper-proof container |
| 05/24/1994 | CA2005391C Communication method and system with encryption of information |
| 05/18/1994 | EP0597481A2 Efficient signature schemes based on birational permutations |
| 05/18/1994 | EP0597192A2 Method for enabling later verification of already transmitted data |
| 05/18/1994 | EP0596945A1 Digital signature algorithm |
| 05/18/1994 | EP0596894A1 Dynamic encryption key selection for encrypted radio transmissions |
| 05/17/1994 | US5313521 Cryptographic communications system |
| 05/16/1994 | CA2102952A1 Process for transmitting and/or storing information |
| 05/11/1994 | WO1994010778A1 Method and apparatus for authentication of client server communication |
| 05/11/1994 | WO1994010660A1 Method and system for writing data onto a medium so as to enable subsequent verification of authenticity |
| 05/10/1994 | US5311596 Continuous authentication using an in-band or out-of-band side channel |
| 05/10/1994 | US5311595 Method of transferring data, between computer systems using electronic cards |
| 05/04/1994 | EP0595720A1 Process and system for recording information on a data carrier enabling to later certify the originality of this information |
| 05/04/1994 | EP0277247B1 System for generating a shared cryptographic key and a communication system using the shared cryptographic key |
| 05/04/1994 | CN1086284A Electronic identification system having remote automatic responss capability and automatic identification method thereof |
| 05/03/1994 | US5309516 Group cipher communication method and group cipher communication system |
| 05/03/1994 | US5307523 Protective eyewear |
| 04/28/1994 | WO1994009580A1 Apparatus for dispensing money orders |
| 04/28/1994 | WO1994009579A1 Ring network security system |
| 04/26/1994 | US5307412 Random coding cipher system and method |
| 04/26/1994 | US5307411 Means for identification and exchange of encryption keys |
| 04/26/1994 | US5307410 Interferometric quantum cryptographic key distribution system |
| 04/26/1994 | US5307409 Apparatus and method for fault detection on redundant signal lines via encryption |
| 04/20/1994 | EP0592808A2 Commercial data masking |
| 04/14/1994 | WO1994008409A1 Quantum cryptography using discarded data |
| 04/14/1994 | WO1994008408A1 Location-sensitive remote database access control |
| 04/14/1994 | WO1994008353A1 Random coding cipher system and method |
| 04/13/1994 | EP0592011A1 IPPV programming distribution control system |
| 04/13/1994 | CN1024241C Method of carrying out authentication check between base station and mobile station in mobile radio system |
| 04/12/1994 | US5303293 Cryptographic device with a display means for identification of a defective function in the cryptographic device |
| 04/12/1994 | US5303285 Wireless telephone service access method |
| 04/07/1994 | DE4233580C1 Data access protection method for telecommunications system - using specific appts. data values to obtain code key for data encoding. |
| 04/05/1994 | US5301247 Method for ensuring secure communications |
| 04/05/1994 | US5301235 Arrangement for transforming plaintext into ciphertext for use in a data communications system |
| 04/05/1994 | US5301234 Radiotelephone installation for prepayment operation with security protection |
| 04/05/1994 | US5301233 Process for the transmission and reception of personalized programs |
| 04/05/1994 | US5301232 Method and apparatus for over-the-air programming of communication devices |
| 03/31/1994 | DE4230527A1 Data transmission procedure - using inaccuracies in data content occurring through scanning of data source as modulation content for transmission of data |
| 03/30/1994 | EP0589757A1 Telecommunications installation with secured downloading of prepayment means and method for the download |
| 03/29/1994 | US5299263 Two-way public key authentication and key agreement for low-cost terminals |
| 03/29/1994 | US5299262 Method for exponentiating in cryptographic systems |
| 03/29/1994 | CA1328129C Data authentication using modification detection codes based on a public one-way encryption function |
| 03/23/1994 | EP0588519A2 Continuous authentication using an in-band or out-of-band side channel |
| 03/23/1994 | EP0588339A2 Method and apparatus for settlement of accounts by IC cards |
| 03/22/1994 | US5297208 Secure file transfer system and method |
| 03/22/1994 | US5297207 Machine generation of cryptographic keys by non-linear processes similar to processes normally associated with encryption of data |
| 03/22/1994 | US5297206 Cryptographic method for communication and electronic signatures |
| 03/17/1994 | DE4016624C1 Anordnung zur Fernbedienung in Datennetzen Arrangement for remote control in data networks |
| 03/16/1994 | EP0586472A1 Cryptographic device for data sequence not using a key |
| 03/16/1994 | CN2159037Y 101 second cryptographic keyboard |
| 03/15/1994 | US5295188 Public key encryption and decryption circuitry and method |
| 03/15/1994 | CA2106125A1 Facsimile apparatus |
| 03/09/1994 | EP0586022A1 Improved public key/signature cryptosystem with enhanced digital signature certification field |
| 03/08/1994 | US5293576 Command authentication process |
| 03/08/1994 | US5293423 Synchronizing method in a mobile radio system |
| 03/02/1994 | EP0584725A1 Method of authentication with improved security for secrecy of authentication key |
| 03/02/1994 | EP0584667A1 Wireless device and means for verifying identification |
| 03/01/1994 | CA2104849A1 Continuous authentication using an in-band or out-of-band side channel |
| 03/01/1994 | CA2036858C Secure key management using programmable control vector checking |
| 02/22/1994 | US5289542 Caller identification system with encryption |
| 02/17/1994 | WO1994003859A1 Apparatus and method for providing network security |
| 02/17/1994 | CA2118940A1 Apparatus and method for providing network security |
| 02/16/1994 | EP0583140A1 System for seamless processing of encrypted and non-encrypted data and instructions |
| 02/16/1994 | CN2156632Y Automatic telephone calling security limiter |
| 02/16/1994 | CN1082284A Power-of-two length pseudo-noise sequence generator with fast offset adjustment |
| 02/16/1994 | CN1082274A Method and apparatus for maintaining continuous synchrounous encryption and decryption in a wireless communication system throughout a hand-off |
| 02/15/1994 | US5287463 Method and apparatus for transferring information over a common parallel bus using a fixed sequence of bus phase transitions |
| 02/09/1994 | EP0582395A2 Computer network with modified host-to-host encryption keys |
| 02/09/1994 | EP0221930B1 Restoring framing in a communications system |
| 02/08/1994 | US5285497 Methods and apparatus for scrambling and unscrambling compressed data streams |
| 02/08/1994 | US5285496 Methods and apparatus for providing a secure paging system |
| 02/03/1994 | WO1994003003A1 Encryption/decryption apparatus with non-accessible table of keys |
| 02/03/1994 | DE4238858C1 Centralised locking system for motor vehicle - uses synchronised clock pulse counters in both coder and decoder set to same initial count via random number generator |
| 02/02/1994 | EP0581375A1 Method for modifying pseudorandom sequences and apparatus for scrambling or descrambling information |
| 02/01/1994 | US5283832 Paging message encryption |
| 02/01/1994 | US5283831 Method of synchronizing the pseudo-random binary sequence in a descrambler |
| 01/26/1994 | EP0580350A1 Access control subsystem and method for distributed computer system using locally cached authentication credentials |
| 01/26/1994 | CN1081226A Locking device utilizing frequency coupling and cipher decoding |
| 01/25/1994 | US5282247 Apparatus and method for providing data security in a computer system having removable memory |
| 01/25/1994 | CA1326535C Device and method to render secure the transfer of data between a videotex terminal and a server |
| 01/20/1994 | WO1994001821A1 Trusted path subsystem for workstations |
| 01/20/1994 | DE4223258A1 Verifiable reliably decoded data transmission procedure - comparing transmitter message with receiver message to verify transmission of secret message when they agree |
| 01/20/1994 | CA2139744A1 Trusted path subsystems for workstations |
| 01/19/1994 | CN1081041A Authorization code lockout mechanism for preventing unauthorized reception of transmitted data |
| 01/18/1994 | US5280529 Communication network intended for secure transmissions |
| 01/18/1994 | US5280497 Communicating on wandering channels |
| 01/12/1994 | EP0578059A1 Method for executing number-theoretic cryptographic and/or error-correcting protocols |
| 01/12/1994 | EP0577707A1 Secure computer interface |
| 01/11/1994 | US5278906 System for encoding data presented with a first coding device and for decoding encoded data with a second coding device, and coding device for use in the system |
| 01/11/1994 | US5278905 Method and apparatus for processor base encryption |
| 01/11/1994 | US5278904 Method of verifying identification |
| 01/06/1994 | WO1993021581A3 Cryptographic data security in a secured computer system |
| 01/05/1994 | EP0577330A2 Improved variable length decoder |