Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 9 - Arrangements for secret or secure communication
Patents for H04L 9 - Arrangements for secret or secure communication (111,914)
10/1995
10/11/1995EP0676108A1 Apparatus and method for fault detection on redundant signal lines via encryption.
10/10/1995US5457748 Method and apparatus for improved security within encrypted communication devices
10/10/1995US5457747 Anti-fraud verification system using a data card
10/10/1995US5457746 System and method for access control for portable data storage media
10/10/1995CA2096818C Arrangement for transforming plaintext into ciphertext for use in a data communications system
10/05/1995WO1995026597A1 Methods for providing conditional access information to decoders in a packet-based multiplexed communications system
10/04/1995EP0675615A1 Method for the combined authentication of a telecommunications terminal and a user module in a communications network
10/04/1995EP0675614A1 Apparatus for the implementation of a system for the secure exchange of data according to the RSA method limited to digital signatures and message verification
10/04/1995EP0674824A1 Television program delivery system
10/03/1995US5455865 Robust packet routing over a distributed network containing malicious failures
10/03/1995US5455864 Encrypted paging message transmission
10/03/1995US5455863 Method and apparatus for efficient real-time authentication and encryption in a communication system
10/03/1995US5455862 Apparatus and method for encrypting communications without exchanging an encryption key
10/03/1995US5455861 Secure telecommunications
10/03/1995US5455407 Electronic-monetary system
10/03/1995CA2055502C Encryption apparatus
10/03/1995CA1337214C In-band controller
09/1995
09/28/1995WO1995026107A1 Data decryption apparatus in a subscription television signal receiving system
09/28/1995WO1995026087A1 Apparatus for generating encryption/decryption look-up tables using a session key
09/28/1995WO1995026086A1 Data decryption apparatus in a subscription television signal receiving system
09/28/1995WO1995026085A1 Methods and apparatus for interfacing an encryption module with a personal computer
09/27/1995EP0674456A2 Passive optical network
09/27/1995EP0673583A1 Advanced set top terminal for cable television delivery systems
09/27/1995EP0673582A1 Reprogrammable terminal for suggesting programs offered on a television program delivery system
09/27/1995EP0673581A1 Set top terminal for cable television delivery systems
09/27/1995EP0673580A1 An operation center for a television program packaging and delivery system
09/27/1995EP0673579A1 Network controller for cable television delivery systems
09/27/1995EP0673578A1 Apparatus and method for use in a digital cable headend for cable television delivery system
09/27/1995CN1109187A Method and floppy disk for file encryption
09/26/1995US5454039 Software-efficient pseudorandom function and the use thereof for encryption
09/26/1995US5453601 Electronic-monetary system
09/23/1995CA2156780A1 Apparatus and method for cryptographic system users to obtain a jointly determined, secret, shared and unique bit string
09/21/1995WO1995025392A1 Variable-key cryptography system
09/21/1995WO1995025391A1 Method and apparatus for utilizing a token for resource access
09/20/1995EP0673178A2 Authentication method for mobile communications
09/20/1995EP0673134A2 Pseudo-random number generator, and communication method and apparatus using encrypted text based upon pseudo-random numbers generated by said generator
09/20/1995EP0673133A1 Cryptographic data processing using cascade of cryptographic elements in feedback structure
09/20/1995EP0672273A1 Method and apparatus for encryption having a feedback register with selectable taps
09/19/1995US5452358 Method and apparatus for improving the security of an electronic codebook encryption scheme utilizing a data dependent encryption function
09/19/1995US5452357 Method and apparatus for access control and/or identification
09/14/1995WO1995024708A1 Method and system for transmitting information utilizing zero-knowledge certifying protocol
09/13/1995EP0671830A2 Secure communication apparatus and method
09/13/1995EP0671712A1 Method and device to authenticate a data carrier, intended to approve a transaction or the access to a service or a place; and corresponding data carrier
09/13/1995EP0671092A1 Method and apparatus for providing cryptographic protection of a data stream in a communication system
09/13/1995EP0671091A1 Method for key management of point-to-point communications
09/13/1995EP0671090A1 Method and apparatus for improved security within encrypted communication devices
09/12/1995US5450493 Secure communication method and apparatus
09/12/1995US5450491 Authenticator card and system
09/08/1995WO1995019672A3 Cryptographic system and method with key escrow feature
09/07/1995DE4406602A1 Security system for identification and authentication of communication partners
09/06/1995EP0670646A1 Mutual authentication method
09/06/1995EP0670645A1 Method for session key generation and updating in a distributed communication network
09/06/1995EP0670644A1 Method for secure communication and key distribution in a distributed network
09/06/1995EP0670402A1 Rolling code encryption process for remote keyless entry system
09/05/1995US5448668 Method of detecting changes to a collection of digital signals
09/05/1995US5448640 Parallel distributed sample descrambling circuit for cell-based asynchronous transfer mode physical layer
09/05/1995US5448639 Digital signature device
09/05/1995US5448638 Security apparatus and system for retail environments
08/1995
08/31/1995WO1995023468A1 Apparatus and method for establishing a cryptographic link between elements of a system
08/31/1995WO1995023467A1 Digital radio transceiver with encrypted key storage
08/31/1995WO1995023466A1 Method for over the air rekeying of multiple communication groups
08/31/1995WO1995023465A1 Efficient electronic money
08/31/1995WO1995023384A2 Error correctable data transmission method and device based on semi-cyclic codes
08/31/1995CA2161639A1 Digital radio transceiver with encrypted key storage
08/30/1995EP0669741A2 Method and apparatus for encrypted communication in data networks
08/30/1995EP0669064A1 Apparatus and method for providing data security in a computer system having a removable memory
08/29/1995US5446796 Method and apparatus for settlement of accounts by IC cards
08/23/1995EP0668580A1 Method of authenticating a terminal in a transaction execution system
08/23/1995EP0667998A1 Method and apparatus for authentication of client server communication
08/22/1995US5444781 Method and apparatus for decryption using cache storage
08/22/1995US5444780 Client/server based secure timekeeping system
08/22/1995CA2055987C Caller identification system with encryption
08/17/1995WO1995022215A2 Limited-traceability systems
08/17/1995DE4404327A1 Software distribution system over telephone network
08/16/1995EP0667692A2 Public-key cryptographic apparatus handling ciphertext by public-key
08/16/1995EP0667691A2 Protected communication method and system
08/15/1995US5442707 Method for generating and verifying electronic signatures and privacy communication using elliptic curves
08/15/1995US5442706 Secure mobile storage
08/15/1995US5442705 Hardware arrangement for enciphering bit blocks while renewing a key at each iteration
08/15/1995US5442703 Method for identifying corrupt encryption keys within a secure communication system
08/15/1995US5442702 Method and apparatus for privacy of traffic behavior on a shared medium network
08/15/1995US5442341 Remote control security system
08/15/1995CA2141882A1 Protected communication method and system
08/15/1995CA1336721C Cryptographic method and apparatus with electrically redefinable algorithm
08/10/1995WO1995021496A1 Efficient digital signature algorithm and use thereof
08/10/1995WO1995021495A1 Method for certifying public keys in a digital signature scheme
08/09/1995EP0666694A1 Method and apparatus for controlling access to digital signals
08/09/1995EP0666664A1 Method for digital signature and authentication of messages using a discrete logarithm with a reduced number of modular multiplications
08/09/1995EP0666663A1 Cryptographic device
08/08/1995US5440640 Multistream encryption system for secure communication
08/08/1995US5440635 Cryptographic protocol for remote authentication
08/08/1995US5440633 Communication network access method and system
08/03/1995CA2141724A1 Cryptographic device
08/02/1995EP0665486A2 Method of protecting electronically published materials using cryptographic protocols
08/01/1995US5438622 Method and apparatus for improving the security of an electronic codebook encryption scheme utilizing an offset in the pseudorandom sequence
08/01/1995US5438620 Method and apparatus for scrambling and descrambling of video signal with edge fill
07/1995
07/27/1995WO1995020280A1 Method for the transmission and reception of conditional access programmes using control words specific to said programmes
07/27/1995WO1995020279A1 Apparatus and method for controlling access to and interconnection of computer system resources
07/27/1995WO1995020278A1 Pseudo-random generator
07/27/1995CA2181926A1 Apparatus and method for controlling access to and interconnection of computer system resources
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