Patents
Sitemap › G09 - Educating; Cryptography; Display; Advertising; Seals › G09C - Ciphering or deciphering apparatus for cryptographic or other purposes involving the need for secrecy › G09C 1 - Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
Patents for G09C 1 - Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system (12,544)
01/1997
01/08/1997CN1139781A Data management module, data copy management device and system
01/07/1997US5592555 Wireless communications privacy method and system
01/07/1997US5592553 Authentication system using one-time passwords
01/02/1997EP0750813A1 Data decryption apparatus in a subscription television signal receiving system
01/01/1997CN1139324A Software pay per use system
12/1996
12/31/1996US5590195 Information dissemination using various transmission modes
12/31/1996US5590193 Method to secure the operations for accessing detachable cards for computers
12/27/1996WO1996042182A1 Process and device for transmitting confidential connection and service information between subscriber terminals and one or more digital exchanges
12/27/1996WO1996042181A1 Process and device for authenticating subscribers to digital exchanges
12/27/1996WO1996042075A1 System for generating a password
12/27/1996WO1996042041A2 Internet server access control and monitoring systems
12/27/1996WO1996034473A3 A multi-purpose high speed cryptographically secure sequence generator based on zeta one-way functions
12/27/1996CA2224316A1 Process and device for transmitting confidential connection and service information between subscriber terminals and one or more digital exchanges
12/27/1996CA2221506A1 Internet server access control and monitoring system
12/25/1996CN1138927A Cryptographic system and method with key escrow feature
12/19/1996WO1996041448A1 Handheld remote computer control and methods for secured interactive real-time telecommunications
12/19/1996WO1996041447A1 Low power telecommunication controller for a host computer server
12/19/1996WO1996041446A1 System for detecting unauthorized account access
12/19/1996WO1996041445A1 System and method for access control for data storage media
12/19/1996DE19521485A1 Verfahren und Vorrichtung zur Übertragung von vertraulichen Verbindungsaufbau- und Serviceinformationen zwischen teilnehmerseitigen Endeinrichtungen und einer oder mehreren digitalen Vermittlungsstellen Method and apparatus for transmitting confidential connection establishment and service information between subscriber-side terminals and one or more digital exchanges
12/19/1996DE19521484A1 Verfahren und Vorrichtung zur Authentisierung von Teilnehmern gegenüber digitalen Vermittlungsstellen Method and apparatus for authenticating subscribers compared to digital exchanges
12/19/1996CA2223565A1 System and method for access control for data storage media
12/18/1996EP0748496A1 Encryption template
12/12/1996WO1996039765A1 Multi-step digital signature method and system
12/12/1996CA2223305A1 Multi-step digital signature method and system
12/11/1996EP0746923A1 Efficient electronic money
12/10/1996US5583779 Method for preventing monitoring of data remotely sent from a metering accounting vault to digital printer
12/05/1996WO1996038799A1 Secure method and system for communicating a list of credit card numbers over a non-secure network
12/04/1996EP0746126A2 System for data copyright management using key distribution
12/04/1996EP0745925A2 Encryption key
12/04/1996EP0745924A2 User-transparent security method and apparatus for authenticating user terminal access to a network
12/03/1996US5581615 Scheme for authentication of at least one prover by a verifier
12/01/1996CA2172566A1 User-transparent security method and apparatus for authenticating user terminal access to a network
11/1996
11/27/1996EP0744715A2 Capture and use of a personal identification feature at a service terminal
11/26/1996CA2176406A1 Capture and use of a personal identification feature at a service terminal
11/21/1996WO1996037064A1 Process for the computer-controlled exchange of cryptographic keys between a first and a second computer unit
11/20/1996EP0743620A2 Secure receipt-free electronic voting
11/20/1996EP0743603A1 Integrated circuit device for use in the protection of multiple resources in an electronic assembly
11/20/1996EP0743602A1 Integrated circuit device with function usage control
11/19/1996US5577125 Graphical manipulation of encryption
11/19/1996US5577124 Multi-purpose high speed cryptographically secure sequence generator based on zeta-one-way functions
11/19/1996US5577123 Public-key cryptographic apparatus handling ciphertext by public-key
11/14/1996WO1996036160A1 Videophone interactive mailbox facility system and method of processing information
11/14/1996CA2220307A1 Videophone interactive mailbox facility system and method of processing information
11/13/1996EP0741936A1 Pseudo-random generator
11/13/1996EP0741935A1 Apparatus and method for controlling access to and interconnection of computer system resources
11/13/1996CN1135820A Cryptographic receiver
11/12/1996US5574789 Encryption communication method and terminal device for encryption communication
11/12/1996US5574785 Enciphered communication system
11/06/1996EP0741376A2 Encrypted mail monitoring and data retrieval system
11/06/1996EP0740872A1 Restricted blind signatures
11/05/1996US5572454 Computer implemented method
11/04/1996CA2166938A1 Encrypted mail monitoring and data retrieval system
10/1996
10/31/1996WO1996034473A2 A multi-purpose high speed cryptographically secure sequence generator based on zeta one-way functions
10/31/1996WO1996034334A1 Device for executing enciphered program
10/31/1996CA2214903A1 A multi-purpose high speed cryptographically secure sequence generator based on zeta one-way functions
10/30/1996EP0739560A1 Cryptographic system and method with key escrow feature
10/30/1996EP0739559A1 Method for key distribution using quantum cryptography
10/24/1996WO1996033567A1 Process for generating electronic signatures, in particular for smart cards
10/24/1996WO1996033564A1 Method and apparatus for high speed block ciphering of packet data
10/24/1996DE19614979A1 Computer wireless communications device
10/24/1996DE19532067C1 Programming system for vehicle electronic key
10/23/1996CN1134206A Method for automatic resynchronization of transmitter/receiver pair in remote keyless entry system
10/23/1996CN1134178A Resynchronizing transmitters to receivers for secure vehicle entry using cryprography or rolling code
10/23/1996CN1134083A Decoder
10/22/1996US5568552 Method for providing a roving software license from one node to another node
10/17/1996WO1996032791A1 Computer-assisted method for the exchange of cryptographic keys between a user computer unit (u) and network computer unit (n)
10/17/1996WO1996024092A3 A method and system for managing a data object so as to comply with predetermined conditions for usage
10/16/1996EP0737907A2 Cryptographic data security in a secured computer system
10/16/1996EP0737387A1 Identification/authentication coding method and apparatus
10/15/1996US5566099 Pseudorandom number generator
10/15/1996US5565923 Apparatus for formatting a digital signal to include multiple time stamps for system synchronization
10/10/1996WO1996031965A1 Electronic funds transfer instruments
10/10/1996CA2217593A1 Electronic funds transfer instruments
10/08/1996US5563950 System and methods for data encryption using public key cryptography
10/08/1996US5563945 Data storage device
10/08/1996CA2000400C Public key/signature cryptosystem with enhanced digital signature certification
10/03/1996WO1996030840A1 Method and means for interconnecting different security level networks
10/02/1996EP0735722A2 Cryptographic key management and validation system
10/02/1996EP0735721A2 Method for master key generation and registration
10/02/1996EP0735720A2 Method for key distribution and verification in a key management system
10/02/1996EP0735719A2 Method for providing secure boxes in a key management system
10/02/1996EP0735718A1 Method and apparatus for high bandwidth encryption/decryption using a low bandwidth cryprographic module
10/02/1996EP0734624A1 A non-deterministic public key encryption system
10/02/1996CN1132429A Method for sharing secret information, generating digital signature, and performing certification in communication system that has plurality of information processing apparatus and communication......
09/1996
09/26/1996WO1996029683A1 Method of verifying the integrity of data stored on a processing facility used for processing sheet-like articles such as bank notes or bills
09/26/1996DE19510626A1 Verfahren zur Prüfung der Unversehrtheit von gespeicherten Daten auf einer Verarbeitungsanlage für Blattgut, wie z. B. Banknoten oder Wertpapiere Procedures for verifying the integrity of data stored on a processing facility for sheet material such. As bank notes or securities
09/25/1996EP0734000A2 Automated system for identifying authorized system users
09/25/1996CN1131851A Method for identifying metering accounting vault to digital printer
09/25/1996CN1131780A Chinese digital word, Chinese digital word table and its using method and scheme
09/25/1996CN1131528A Cord winder for vacuum cleaner
09/24/1996US5559889 System and methods for data encryption using public key cryptography
09/19/1996WO1996028913A1 Key escrow method with warrant bounds
09/18/1996EP0732017A1 System and method for transmitting and receiving variable length authorization control for digital services
09/18/1996EP0732014A1 Apparatus and method for storing data
09/17/1996US5557765 System and method for data recovery
09/11/1996EP0730802A1 System and method for simultaneously authorizing multiple virtual channels
09/10/1996US5555304 Storage medium for preventing an illegal use by a third party
09/06/1996WO1996027155A2 Systems and methods for secure transaction management and electronic rights protection
09/06/1996CA2683230A1 Systems and methods for secure transaction management and electronic rights protection
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