| Patents for H04L 9 - Arrangements for secret or secure communication (111,914) |
|---|
| 06/19/1984 | CA1169564A1 Safety device and method for three-way confidential data transmission |
| 06/13/1984 | EP0110459A1 Method and arrangement for rendering enciphered information reproducible |
| 06/13/1984 | EP0110354A2 Detecting improper operation of a digital data processing apparatus |
| 06/13/1984 | EP0110304A2 Method of transmitting master keys to an enciphering apparatus |
| 05/08/1984 | US4447672 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 |
| 05/01/1984 | CA1166712A1 Cryptographic system using triple encipherment |
| 04/18/1984 | EP0105553A1 Device for enciphering digital signals comprising one or more DES circuits |
| 04/10/1984 | CA1165445A1 Method for operating a transaction execution system having improved verification of personal identification |
| 04/03/1984 | US4441095 Code translator |
| 03/28/1984 | EP0103791A2 Coding method for an electronic key |
| 03/27/1984 | US4438824 Apparatus and method for cryptographic identity verification |
| 02/29/1984 | EP0101636A2 Method of synchronising encryption and decryption during the transmission of digital encrypted data, and apparatus for carrying out said method |
| 02/21/1984 | CA1162623A1 Two level encripting of rf signals |
| 02/14/1984 | US4431865 Digital signal enciphering and deciphering apparatus and system |
| 02/08/1984 | EP0100260A1 Method to establish the origin of at least one bit of information stored in a memory of a first electronical device and transmitted to a second electronical device |
| 02/08/1984 | EP0100106A2 Communications systems and transmitters and receivers including scrambling devices |
| 02/07/1984 | US4430728 Computer terminal security system |
| 02/02/1984 | WO1984000457A1 Private communication system |
| 02/02/1984 | WO1984000456A1 Secure mobile radio telephony |
| 01/31/1984 | US4429180 Apparatus for simultaneous generation of key at two locations |
| 01/31/1984 | CA1161513A1 System for enciphering and deciphering a digital signal |
| 01/19/1984 | WO1984000225A1 Method for scrambling digital information and device for implementing such method |
| 01/11/1984 | EP0097997A2 Method of generating a pseudo-random sequence of signs of a large sequence length |
| 01/04/1984 | EP0097621A1 Method for disguising digital information, and device for performing the same |
| 01/03/1984 | US4424414 Exponentiation cryptographic apparatus and method |
| 01/03/1984 | CA1159920A2 Method and apparatus for securing data transmissions |
| 12/27/1983 | US4423287 End-to-end encryption system and method of operation |
| 12/22/1983 | WO1983004461A1 Encryption system key distribution method and apparatus |
| 12/21/1983 | EP0096599A1 Method for the authentification or certification of at least one bit of information stored in the memory of an electronic carrier, especially a replaceable and portable one such as a card |
| 12/20/1983 | CA1159124A2 Method and apparatus for securing data transmissions |
| 12/20/1983 | CA1159123A1 Method and device for coding and/or decoding and securing data |
| 11/29/1983 | US4418425 Encryption using destination addresses in a TDMA satellite communications network |
| 11/24/1983 | WO1983004153A1 Method for tansmitting signal pulses over a channel |
| 11/22/1983 | US4417338 Cryptographic key sharing circuit and method using code correction |
| 11/16/1983 | EP0094031A2 Method of transmitting enciphered data |
| 11/15/1983 | CA1157118A1 Method for synchronizing code machines which are operated within the framework of a block transmission network |
| 11/09/1983 | EP0093549A2 CATV communication system |
| 11/09/1983 | EP0093525A1 Broadcasting encrypted signals |
| 11/08/1983 | CA1156761A1 System for authenticating users and devices in on- line transaction networks |
| 11/08/1983 | CA1156735A1 Method for coded data transmission in half-duplex operation between data terminal equipment of two data stations |
| 10/18/1983 | CA1155518A1 Encoding of information |
| 10/05/1983 | EP0090771A1 Method and apparatus for the enciphered transmission of information |
| 10/04/1983 | US4408203 Security system for electronic funds transfer system |
| 10/04/1983 | US4408093 Cryptographic encoder-decoder |
| 09/28/1983 | EP0089632A1 Method and arrangement for the transmission of enciphered texts |
| 09/28/1983 | EP0027137B1 Apparatus for enciphering and/or deciphering data signals |
| 09/21/1983 | EP0089087A1 Communication system comprising a central data processing device, access stations and external stations, and incorporating a cryptographic check against falsification of an external station, and external stations for use in such a communication system |
| 09/20/1983 | US4405829 Cryptographic communications system and method |
| 09/13/1983 | US4404426 Cryptographic telegraphy programming system |
| 09/07/1983 | EP0087758A2 Method and apparatus for transmitting characters |
| 08/24/1983 | EP0086286A1 Information communicating apparatus and method |
| 08/23/1983 | CA1152592A1 Exponentiation cryptographic apparatus and method |
| 08/16/1983 | US4399323 Fast real-time public key cryptography |
| 08/10/1983 | EP0085651A1 Deciphering method and device |
| 08/10/1983 | EP0085130A1 Method and apparatus for maintaining the privacy of digital messages conveyed by public transmission |
| 08/09/1983 | CA1151741A1 Method and apparatus for securing data transmissions |
| 08/02/1983 | US4396947 Apparatus for encoding of information |
| 07/20/1983 | EP0083998A1 Scramble or unscramble byte generator |
| 07/12/1983 | US4393269 Method and apparatus incorporating a one-way sequence for transaction and identity verification |
| 07/07/1983 | WO1983002343A1 Computer terminal security system |
| 07/06/1983 | EP0082958A2 Cryptographic data communications |
| 07/05/1983 | CA1149484A1 Method and apparatus for securing data transmissions |
| 07/05/1983 | CA1149483A1 Cryptographic communication and file security using terminals |
| 06/15/1983 | EP0011615B1 Method and device for encryption and decryption of data |
| 06/14/1983 | CA1148252A1 Solid state digital audio scrambler system for teletransmission of audio intelligence through a television system |
| 06/07/1983 | CA1147863A1 Method and apparatus for secure message transmission for use in electronic funds transfer systems |
| 05/31/1983 | US4386416 Data compression, encryption, and in-line transmission system |
| 05/31/1983 | US4386266 Method for operating a transaction execution system having improved verification of personal identification |
| 05/31/1983 | US4386234 Cryptographic communication and file security using terminals |
| 05/31/1983 | US4386233 Crytographic key notarization methods and apparatus |
| 05/26/1983 | WO1983001881A1 A security system for sstv encryption |
| 05/10/1983 | CA1146232A2 Delta modulation detector |
| 04/20/1983 | EP0077238A1 Method and apparatus for authenticating the signature of a message |
| 04/14/1983 | WO1983001358A1 Method and device for the query of data files and/or banking transactions, protected from frauds by means of a communication method coded by random variable |
| 03/23/1983 | EP0074657A1 Method of securing the transmission of digital signals |
| 03/09/1983 | EP0073323A1 Encrypted data transmission in a TDMA satellite communications network |
| 02/08/1983 | CA1141001A1 Method and means for securing the distribution of encoding keys |
| 01/25/1983 | US4370519 Autokey generator for secret communication system |
| 01/19/1983 | EP0069831A1 Method for the prevention of "compromising radiation" at the processing and transmission of secret data information |
| 01/18/1983 | US4369434 Enciphering/deciphering system |
| 01/18/1983 | US4369333 Method and apparatus for enciphering and deciphering of information |
| 01/18/1983 | US4369332 Key variable generator for an encryption/decryption device |
| 01/05/1983 | EP0068805A1 End-to-end encryption system and method of operation |
| 12/29/1982 | EP0067977A1 Method and circuit arrangement for the distribution of keys on key devices |
| 12/28/1982 | US4366573 Method for synchronizing code machines which are operated within the framework of a block transmission network |
| 12/28/1982 | US4366551 Associative memory search system |
| 12/22/1982 | EP0067611A1 Apparatus for controlling access to computers |
| 12/22/1982 | EP0067340A1 Method for key transmission |
| 12/21/1982 | US4365110 Multiple-destinational cryptosystem for broadcast networks |
| 12/21/1982 | CA1138069A1 Encipher-decipher device |
| 11/17/1982 | EP0064779A2 Method and system for the mutual encyphered identification between data communicating stations and stations for use with such method and system |
| 11/16/1982 | CA1135808A1 Apparatus for encoding and decoding data signals |
| 11/03/1982 | EP0063794A2 Apparatus and process for checking identity |
| 10/27/1982 | EP0063332A1 Apparatus for enciphered digital information transmission |
| 10/05/1982 | US4353126 Method for coded data transmission in half-duplex operation between data terminal equipment of two data stations |
| 10/05/1982 | CA1133087A1 Code translator |
| 10/05/1982 | CA1133086A1 Cipher system |
| 09/28/1982 | US4351982 RSA Public-key data encryption system having large random prime number generating microprocessor or the like |
| 09/21/1982 | US4350844 Encipering- and deciphering apparatus in the form of a typewriter |
| 09/14/1982 | US4349695 Recipient and message authentication method and system |