Patents for H04L 9 - Arrangements for secret or secure communication (111,914)
06/2001
06/19/2001US6249873 Method of and apparatus for providing secure distributed directory services and public key infrastructure
06/19/2001US6249871 System and method for using a second resource to store a data element from a first resource in a first-in last-out stack
06/19/2001US6249867 Method for transferring sensitive information using initially unsecured communication
06/19/2001US6249585 Publicly verifiable key recovery
06/19/2001US6249582 Apparatus for and method of overhead reduction in a block cipher
06/19/2001CA2224661C Use of an encryption server for encrypting messages
06/14/2001WO2001043471A1 Method for encrypting data and a telecommunications terminal and access authorization card
06/14/2001WO2001043367A1 Method and apparatus for implementing leaf node proxy in a network
06/14/2001WO2001043344A1 System and method for generating and managing attribute certificates
06/14/2001WO2001043341A2 Systems and methods for certifying public keys in digital signatures and key-agreements with membership authentication
06/14/2001WO2001043340A1 One's complement cryptographic combiner
06/14/2001WO2001043339A1 Device for reproducing data
06/14/2001WO2001043338A1 Method and apparatus for secure e-commerce transactions
06/14/2001WO2001043335A2 Synchronization of session keys
06/14/2001WO2001043129A1 Computer-readable medium with microprocessor to control reading and computer arranged to communicate with such a medium
06/14/2001WO2001043108A1 Key control system and key control method
06/14/2001WO2001022873A8 Sensor with digital signature of data relating to sensor
06/14/2001WO1998047260A9 Publicly verifiable key recovery
06/14/2001US20010003540 Electronic security component
06/14/2001CA2394435A1 One's complement cryptographic combiner
06/14/2001CA2393645A1 Computer-readable medium with microprocessor to control reading and computer arranged to communicate with such a medium
06/13/2001EP1107506A2 Method and system for generating messages including a verifiable assertion that a variable is within predetermined limits
06/13/2001EP1107505A2 Polymorphous encryption system
06/13/2001EP1107504A2 Method of updating encryption keys in a data communication system
06/13/2001EP1107503A1 Electronic security component
06/13/2001EP1107502A2 System and method for preventing differential power analysis attacks (DPA) on a cryptographic device
06/13/2001EP1106000A1 Secure processing for authentication of a wireless communications device
06/13/2001EP1105998A1 Method and device for creating a secret communication key for a predetermined asymmetric and cryptographic key-pair
06/13/2001EP1105996A1 System and method for enabling secure access to services in a computer network
06/13/2001EP1105994A1 Time-stamping with binary linking schemes
06/13/2001EP1105785A1 Improvements in and relating to access control
06/13/2001EP1105784A1 Improvements in and relating to data communication
06/13/2001EP1105783A1 Improvements in and relating to data processing apparatus and verification methods
06/13/2001EP0885504B1 Data transmission network billing method
06/13/2001EP0818007A4 Method and means for interconnecting different security level networks
06/13/2001EP0671091A4 Method for key management of point-to-point communications
06/13/2001DE10017424A1 Verfahren zur Verschlüsselung von Daten und Telekommunikationsendgerät und Zugangsberechtigungskarte Method for encrypting data and telecommunications terminal equipment and access card
06/13/2001CN1299548A Method of transmitting information data from a sender to a receiver via a transcoder
06/13/2001CN1299545A User authentication using a virtual private key
06/13/2001CN1299544A Method of establishing the trustorthiness level of a participant in a communication connection
06/13/2001CN1299543A pseudo-random squence generator and associated method
06/13/2001CN1299497A Method for authenticating a chip card in a message transmission network
06/13/2001CN1299201A Encryption/decryption system for information security
06/12/2001US6247133 Method for authenticating electronic documents on a computer network
06/12/2001US6246775 Method and appartus for superposing a digital watermark and method and apparatus for detecting a digital watermark
06/12/2001US6246771 Session key recovery system and method
06/12/2001US6246770 Method and apparatus for feature configuration in remotely located ultrasound imaging system
06/12/2001US6246768 Data encryption system for encrypting plaintext data
06/12/2001CA2262549C Accelerating public-key cryptography by precomputing randomly generated pairs
06/12/2001CA2083070C Non-contact tamper sensing by electronic means
06/12/2001CA2054037C Cryptographic system allowing encrypted communication between users with a secure mutual cipher key determined without user interaction
06/09/2001CA2327974A1 System and method for preventing differential power analysis attacks (dpa) on a cryptographic device
06/07/2001WO2001041442A1 Apparatus and method for encoding and storage of digital image and audio signals
06/07/2001WO2001041360A2 System and method for electronic storage and retrieval of authenticated original documents
06/07/2001WO2001041358A2 Synchronization of authentication ciphering offset
06/07/2001WO2001041357A1 Encryption of partitioned data blocks utilizing public key methods and random numbers
06/07/2001WO2001041356A1 Memory card and data distribution system using it
06/07/2001WO2001041354A2 Integrating a digital signature service into a database
06/07/2001WO2001041353A2 Method and apparatus for sending encrypted electronic mail through a distribution list exploder
06/07/2001WO2001041104A1 Recorder
06/07/2001WO2001040950A2 Microprocessor arrangement having an encoding function
06/07/2001WO2001040929A1 Method of linking authorized users to a plurality of devices
06/07/2001WO2001040928A1 Radio based proximity token with multiple antennas
06/07/2001WO2001040906A2 Method of determining distance between two electronic devices
06/07/2001WO2001040891A2 Apparatus and method for checking real name on internet
06/07/2001WO2001031470A8 Efficient member authentication and authorization for a tree-based reliable multicast data distribution setup
06/07/2001WO2001011818A3 Method and apparatus for generating a message authentication code
06/07/2001WO2001003398A3 Dynamic connection to multiple origin servers in a transcoding proxy
06/07/2001US20010003175 Apparatus and method for checking real name on internet
06/07/2001US20010002929 Message authentication
06/07/2001CA2395194A1 Apparatus and method for encoding and storage of digital image and audio signals
06/07/2001CA2393131A1 Method of linking authorized users to a plurality of devices
06/06/2001EP1104960A1 Message authentication
06/06/2001EP1104959A2 A cryptographic protocol for secure communications
06/06/2001EP1104613A1 Access control using attributes contained within public key certificates
06/06/2001EP1104607A1 Method and device for authenticating with symmetrical algorithm
06/06/2001EP1104555A2 System for tracking end-user electronic content usage
06/06/2001EP1104554A1 Improvements in and relating to electronic security devices
06/06/2001CN1298620A Authentication method and authentication device for secured communications between an ATM mobile terminal and an ATM access node of a wireless ATM radio communication network
06/06/2001CN1298614A Management of authentication and encryption user information in digital user terminals
06/06/2001CN1298263A Radio network with cipher change program
06/06/2001CN1298229A Identification method for establishing connection between equipments
06/05/2001US6243812 Authentication for secure devices with limited cryptography
06/05/2001US6243811 Method for updating secret shared data in a wireless communication system
06/05/2001US6243470 Method and apparatus for advanced symmetric key block cipher with variable length key and block
06/05/2001US6243469 Information transmission method and apparatus
06/05/2001US6243467 Method of elliptic curve cryptographic digital signature generation and verification using reduced base tau expansion in non-adjacent form
06/05/2001US6243466 Auto-escrowable and auto-certifiable cryptosystems with fast key generation
06/05/2001CA2037778C Security enhancement in a data processor through use of dynamic parameter authentication
06/03/2001CA2327531A1 Method of virtual private network communication in security gateway apparatus and security gateway apparatus using the same
05/2001
05/31/2001WO2001039429A1 Integrity check values (icv) based on pseudorandom binary matrices
05/31/2001WO2001039417A2 Methods and apparatus for keystream generation
05/31/2001WO2001039143A1 Method and system for ordering and delivering digital certificates
05/31/2001WO2001039099A1 Information processor and storage medium
05/31/2001WO2001039004A1 Employing synthetic genes in genetic algorithms, information encoding and non-replicative encryption
05/31/2001WO2000042763A3 Method and apparatus for scrambling a high definition television signal
05/31/2001US20010002487 System for supporting secured log-in of multiple users into a plurality of computers using combined presentation of memorized password and transportable passport record
05/31/2001US20010002486 Leak-resistant cryptographic method and apparatus
05/31/2001US20010002485 System and method for electronic transmission, storage, and retrieval of authenticated electronic original documents
05/31/2001US20010002212 Data transmitting apparatus data transmitting method data receiving apparatus data receiving method data transmission apparatus and data transmission method