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)
01/1996
01/17/1996CN1115150A Controlled-access broadcast signal receiving system
01/16/1996US5485577 Method and apparatus for incremental delivery of access rights
01/16/1996US5485519 Enhanced security for a secure token code
01/16/1996CA2059172C Authentication protocols in communication networks
01/16/1996CA2052302C Prevention of inspection of secret data stored in encapsulated integrated circuit chip
01/11/1996WO1996000963A1 Method and apparatus for copy protection for various recording media
01/11/1996DE2310654C1 Bit type encoding and decoding installation for digital information
01/10/1996EP0691787A1 Receiving controlled-access broadcast signals
01/10/1996EP0691766A1 Enciphering of dialing information based on previous verification step
01/10/1996EP0691765A2 Method for performing an encryption process in a crypto circuit
01/10/1996EP0691055A1 Two-way public key authentication and key agreement for low-cost terminals
01/09/1996US5483598 Message encryption using a hash function
01/09/1996US5483597 Authentication process for at least one identification device using a verification device and a device embodying the process
01/09/1996US5483596 Apparatus and method for controlling access to and interconnection of computer system resources
01/09/1996US5483595 Paging device including password accessed stored cryptographic keys
01/04/1996WO1996000485A2 User authentication method and apparatus
01/03/1996EP0690646A2 Pre-location of authentication information in a personal communication system
01/02/1996US5481613 Computer network cryptographic key distribution system
01/02/1996US5481610 Digital radio transceiver with encrypted key storage
12/1995
12/27/1995EP0689338A2 System for providing information to subscribers via telephone lines
12/27/1995EP0689316A2 Method and apparatus for user identification and verification of data packets in a wireless communications network
12/27/1995EP0688929A2 Secure self-learning
12/27/1995EP0688480A1 A method and system for audio information dissemination using various transmission modes
12/26/1995US5479514 Method and apparatus for encrypted communication in data networks
12/26/1995US5479513 Fast and secure encryption-decryption method based on chaotic dynamics
12/26/1995US5479512 Method and apparatus for performing concryption
12/26/1995US5479511 Method, sender apparatus and receiver apparatus for modulo operation
12/23/1995CA2149067A1 User-identification and verification of data integrity in a wireless communication system
12/21/1995WO1995034971A1 Quasi-random code generator, particularly integrated circuit board
12/21/1995WO1995034970A1 Method and apparatus for providing secure communications for a requested call
12/21/1995WO1995034969A1 Device for decoding digital data and method of encrypting and decoding such data using the device
12/21/1995WO1995034968A1 Device for decoding decoding algorithms and method of encrypting and decoding such algorithms using the device
12/21/1995DE3924144C1 Encoding installation for mobile radio communications
12/20/1995CN1113584A Method for recognizing carried certificate by remote terminal, correspondent carried certificate and terminal
12/14/1995WO1995034150A1 Device and process for decryption of digital information
12/13/1995EP0687087A2 Secure data transmission method
12/13/1995EP0686905A1 Method and apparatus for secure remote authentication in a public network
12/13/1995EP0671092A4 Method and apparatus for providing cryptographic protection of a data stream in a communication system.
12/12/1995US5475826 Method for protecting a volatile file using a single hash
12/12/1995US5475763 Message authentication system
12/12/1995US5475758 User authenticating system and method in wide area distributed environment
12/12/1995US5475757 Secure data transmission method
12/12/1995US5475756 Method of authenticating a terminal in a transaction execution system
12/07/1995WO1995033323A1 Nonlinear dynamic substitution devices and methods for block substitutions employing coset decompositions and direct geometric generation
12/07/1995DE4419634A1 Entschlüsselungseinrichtung von digitalen Informationen und Verfahren zur Durchführung der Ver- und Entschlüsselung dieser Decryption means of digital information and procedures for performing the encryption and decryption of these
12/05/1995US5473696 Method and apparatus for combined encryption and scrambling of information on a shared medium network
12/05/1995US5473693 Apparatus for avoiding complementarity in an encryption algorithm
12/05/1995US5473692 Roving software license for a hardware agent
12/05/1995US5473689 Method for authentication between two electronic devices
12/05/1995CA2001863C Secure file handling in a computer operating system
11/1995
11/29/1995EP0684721A2 Data bus communication
11/29/1995EP0683907A1 Method for providing mutual authentication of a user and a server on a network
11/28/1995US5471532 Method of rekeying roaming communication units
11/22/1995EP0683614A1 Reception apparatus and method
11/22/1995EP0683584A1 Self-synchronizing scrambler/descrambler without error multiplication
11/22/1995EP0683582A1 Method for performing secure electronic transactions using digital signature verification
11/22/1995EP0683293A1 Method for operating a data transmission system comprising a transponder and a reading device
11/22/1995EP0682832A1 Protected distribution protocol for keying and certificate material
11/21/1995US5469507 Secure communication and computation in an insecure environment
11/16/1995WO1995031079A1 A method for validating a communication link
11/16/1995WO1995031045A1 Improvements relating to transmission in restricted communication networks
11/16/1995WO1995030976A1 Method for the production of a key common to two devices for implementing a common cryptographic procedure and associated apparatus
11/16/1995DE4416595A1 Securing coded, confidential message transmissions
11/15/1995EP0682428A2 Bidirectional wireless communications system with initialization of scrambling/descrambling sequences using multiple identification codes
11/15/1995EP0682327A2 Method and apparatus for memory efficient variants of public key encryption and identification schemes for smart card applications
11/15/1995EP0681768A1 A method and apparatus for generating a cipher stream
11/15/1995EP0567474B1 Method and apparatus for access control and/or identification
11/14/1995US5467398 Method of messaging in a communication system
11/14/1995CA2025312C Method and device for generating and for validating a digital message and application of such a device
11/09/1995WO1995030292A1 Private signature and proof systems
11/09/1995DE4416253A1 Data protection technique testing authenticity and integrity of coded information
11/09/1995CA2287136A1 Trusted agents for open electronic commerce
11/07/1995US5465299 Electronic document processing system and method of forming digital signature
11/02/1995WO1995029438A1 Data protection system
11/02/1995EP0680187A2 Security device for data communications networks
11/02/1995EP0680172A2 Code sequence generator
11/02/1995EP0680171A2 Low power security mode for a cellular telephone
11/02/1995EP0679977A1 Method and apparatus enabling software trial allowing the distribution of software objects
11/02/1995CA2164596A1 Data protection system
10/1995
10/31/1995USRE35078 Method and apparatus for encrypting and decrypting time domain signals
10/31/1995US5463690 Method and apparatus for public key exchange in a cryptographic system
10/26/1995WO1995028784A1 Computer network cryptographic key distribution system
10/26/1995WO1995028783A1 Method and apparatus for recording sensor data
10/26/1995WO1995028782A1 Method and apparatus for decoding non-sequential data packets
10/26/1995CA2188250A1 Method and apparatus for recording sensor data
10/25/1995EP0679030A2 Packet program component detector
10/25/1995EP0679029A1 System for cooperating with a satellite transponder
10/25/1995EP0678836A1 Method and means for combining and managing personal verification and message authentication encryptions for network transmission
10/25/1995EP0541727A4 Method for secure time-stamping of digital documents
10/24/1995US5461675 Apparatus and method for access control
10/19/1995WO1995023384A3 Error correctable data transmission method and device based on semi-cyclic codes
10/18/1995EP0677949A2 Method for controlling copyright of encrypted digital data
10/18/1995EP0677939A2 Wireless communications privacy method and system
10/17/1995US5459789 Packet TV program component detector
10/12/1995DE4411780A1 Secure identification system for data transmission
10/11/1995EP0676897A2 Crypt key system
10/11/1995EP0676877A2 Method and apparatus for authentication and verification of printed documents using digital signatures and authentication codes
10/11/1995EP0676876A1 Encryption method and system
10/11/1995EP0676110A1 System and method for key distribution using quantum cryptography.
10/11/1995EP0676109A1 Method of extending the validity of a cryptographic certificate
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