| Patents for H04L 9 - Arrangements for secret or secure communication (111,914) |
|---|
| 08/18/1993 | EP0555219A1 Method and apparatus for personal identification |
| 08/17/1993 | US5237615 Multiple independent binary bit stream generator |
| 08/17/1993 | US5237614 Integrated network security system |
| 08/17/1993 | US5237612 Cellular verification and validation system |
| 08/17/1993 | US5237611 Encryption/decryption apparatus with non-accessible table of keys |
| 08/17/1993 | US5237610 Independent external security module for a digitally upgradeable television signal decoder |
| 08/17/1993 | US5237307 Non-contact tamper sensing by electronic means |
| 08/11/1993 | EP0554934A2 Transmission system, and transmitter and receiver to be used in the transmission system |
| 08/10/1993 | US5235645 Scrambler/descrambler system for data transmission |
| 08/10/1993 | US5235642 Access control subsystem and method for distributed computer system using locally cached authentication credentials |
| 08/05/1993 | WO1993015581A1 Method, apparatus and device for encrypting messages transmitted between interconnected networks |
| 08/04/1993 | EP0554182A1 Method, apparatus and device for message cyphering between interconnected networks |
| 08/04/1993 | EP0553948A2 Digital speech encryption using encryption memory |
| 08/04/1993 | EP0553553A2 Security node in switched telecommunication network |
| 08/04/1993 | CN1075040A Method and apparatus for encryption/authentication of eata in energy metering applications |
| 08/03/1993 | US5233653 Apparatus and method for enciphered facsimile transmission and reception |
| 07/31/1993 | CA2088321A1 Multiple cross-check document verification system |
| 07/28/1993 | EP0552392A1 Method for mutual authentification of an IC-card and a terminal |
| 07/28/1993 | EP0413737A4 Security system network |
| 07/27/1993 | US5231668 Digital signature algorithm |
| 07/27/1993 | US5231667 Scrambling/descrambling circuit |
| 07/27/1993 | US5231666 Cryptographic method for updating financial records |
| 07/27/1993 | US5231662 Method and device for enciphering data to be transferred and for deciphering the enciphered data, and a computer system comprising such a device |
| 07/27/1993 | CA1320767C Atomic sequence for phase transitions |
| 07/22/1993 | WO1993014571A1 Secure entry system with radio communication |
| 07/21/1993 | EP0400103B1 Public key diversification method |
| 07/20/1993 | US5230020 Algorithm independent cryptographic key management |
| 07/20/1993 | CA1320578C Automated transaction system using microprocessor cards |
| 07/13/1993 | US5228084 Security apparatus and system for retail environments |
| 07/13/1993 | US5228054 Power-of-two length pseudo-noise sequence generator with fast offset adjustment |
| 07/13/1993 | US5227613 Secure encrypted data communication system having physically secure ic cards and session key generation based on card identifying information |
| 07/07/1993 | EP0549672A1 Sequence synchronisation |
| 07/07/1993 | EP0313576B1 Gateway system and method for interconnecting telephone calls with a digital voice protected radio network |
| 07/06/1993 | US5226082 Variable length decoder |
| 07/06/1993 | US5226081 Multi-carrier communication system using ciphered carrier bit assignment information |
| 07/06/1993 | US5226079 Non-repudiation in computer networks |
| 06/30/1993 | EP0549071A1 Method and system for verifying an authenticated digital datum |
| 06/30/1993 | EP0549070A1 Method and system for batch authentication of digital data |
| 06/30/1993 | EP0549047A1 Scrambler/descrambler and synchronizer for a data transmission system |
| 06/30/1993 | EP0548967A2 Data exchange system with authentification status check |
| 06/30/1993 | EP0482154B1 Device for converting a digital block and the use thereof |
| 06/30/1993 | CN1073789A Electronic-monetary system |
| 06/29/1993 | US5224166 System for seamless processing of encrypted and non-encrypted data and instructions |
| 06/29/1993 | US5224164 Method and apparatus for transliterating messages |
| 06/29/1993 | US5224163 Method for delegating authorization from one entity to another through the use of session encryption keys |
| 06/29/1993 | US5224162 Electronic cash system |
| 06/29/1993 | CA1319760C Method for providing notification of classified electronic message delivery restriction |
| 06/24/1993 | DE4141766A1 Electronic data transmission protection for remote control device - using synchronised time counting at transmitter and receiver to block operation by recorded remote control data signal |
| 06/23/1993 | EP0547975A1 Method and system to authenticate, by an external medium, a portable object connected via a transmission line to this medium |
| 06/23/1993 | EP0547837A2 Document copy authentication |
| 06/22/1993 | US5222142 Sequence generator |
| 06/22/1993 | US5222141 Apparatus and method for encoding data |
| 06/22/1993 | US5222140 Cryptographic method for key agreement and user authentication |
| 06/22/1993 | US5222139 Cryptographic method and apparatus |
| 06/22/1993 | US5222138 Remote signature rendering system & apparatus |
| 06/22/1993 | US5222137 Dynamic encryption key selection for encrypted radio transmissions |
| 06/22/1993 | US5222136 Encrypted communication system |
| 06/22/1993 | US5222134 Secure system for activating personal computer software at remote locations |
| 06/22/1993 | US5222069 Miscorrection arrangement for the concealment of misdetected or miscorrected digital signals |
| 06/15/1993 | US5220606 Cryptographic system and method |
| 06/15/1993 | US5220604 Method for performing group exclusion in hierarchical group structures |
| 06/15/1993 | CA1319198C Secure management of keys using extended control vectors |
| 06/10/1993 | WO1993011619A1 Method and apparatus for data encryption and transmission |
| 06/10/1993 | CA2080929A1 Secure telecommunications |
| 06/08/1993 | US5218638 Limited broadcast system |
| 06/08/1993 | US5218637 Method of transferring a secret, by the exchange of two certificates between two microcomputers which establish reciprocal authorization |
| 06/08/1993 | US5218559 Pseudo-random generator |
| 06/02/1993 | CN1072810A Method and apparatus for scrambling and descrambling of video signals with edge fill |
| 06/01/1993 | US5216715 Key distribution in public communication networks taking account of security gradations |
| 05/27/1993 | WO1993010509A1 Method and system for secure, decentralised personalisation of smart cards |
| 05/27/1993 | WO1993010503A1 Electronic-monetary system |
| 05/26/1993 | EP0543644A2 Command authentication process between a master and a slave station encrypted messages |
| 05/26/1993 | EP0543294A1 Method and apparatus for scrambling and descrambling of video signals with edge fill |
| 05/25/1993 | US5214704 Nonlinear dynamic substitution devices and methods for block substitutions |
| 05/25/1993 | US5214703 Device for the conversion of a digital block and use of same |
| 05/25/1993 | US5214702 Public key/signature cryptosystem with enhanced digital signature certification |
| 05/25/1993 | US5214701 Method of processing data by compression and permutation for microcircuit cards |
| 05/25/1993 | US5214700 Method for obtaining a securitized cleartext attestation in a distributed data processing system environment |
| 05/25/1993 | US5214698 Method and apparatus for validating entry of cryptographic keys |
| 05/25/1993 | US5214694 Scramble signal transmission system for earth station of communication satellite |
| 05/22/1993 | CA2077834A1 Command authentication process |
| 05/19/1993 | EP0542703A1 A system for the safe transmission of messages |
| 05/19/1993 | EP0542298A2 Electronic monetary system |
| 05/19/1993 | EP0541727A1 Method for secure time-stamping of digital documents |
| 05/19/1993 | EP0541537A1 Method and apparatus for high precision weighted random pattern generation. |
| 05/18/1993 | US5212729 Computer data security device and method |
| 05/18/1993 | CA1318028C System and method for providing for secure encryptor key management |
| 05/13/1993 | WO1993009620A1 Method, sender apparatus and receiver apparatus for modulo operation |
| 05/12/1993 | EP0541435A1 System and method of detecting unauthorized use of identifiers for computer access |
| 05/11/1993 | US5210795 Secure user authentication from personal computer |
| 05/11/1993 | US5210794 Apparatus and method for establishing crypto conferences on a telecommunications network |
| 05/11/1993 | CA1317677C Secure management of keys using control vectors |
| 05/08/1993 | CA2081155A1 System for the safe transmission of messages |
| 05/05/1993 | EP0539727A2 Cryptographic facility environment backup/restore and replication in a public key cryptosystem |
| 05/05/1993 | EP0539726A2 Method to establish and enforce a network cryptographic security policy in a public key cryptosystem |
| 05/04/1993 | US5208859 Method for rekeying secure communication units by group |
| 05/04/1993 | US5208858 Method for allocating useful data to a specific originator |
| 05/04/1993 | US5208855 Method and apparatus for irrigation control using evapotranspiration |
| 05/04/1993 | US5208853 Method and apparatus for usage protection of data files using split key and unique variable |
| 05/04/1993 | CA1317368C Direct broadcast satellite signal transmission system |