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)
05/2003
05/21/2003EP0872078B1 Method for encryption of information
05/21/2003CN1419762A Device and method for generating electronic keys from mutual prime numbers
05/21/2003CN1419761A Device and method for increasing the operational reliability and the uniformity of a source of noise
05/21/2003CN1419223A Encrypted message making method
05/21/2003CN1419205A Encryption anti-counterfeit method for identity card, driving license, passport and academic certificate of resident of PRC, and inquiry system thereof
05/21/2003CN1109308C Method and unit for authenticating keys
05/20/2003US6567916 Method and device for authentication
05/20/2003US6567913 Selective security level certificate meter
05/20/2003US6567780 Audio with hidden in-band digital data
05/20/2003US6567535 Steganographic system with changing operations
05/20/2003CA2076439C Process for the transmission and reception of personalized programs
05/15/2003WO2002043044A3 Display device and methods of manufacture and control
05/15/2003US20030093695 Secure handling of stored-value data objects
05/15/2003US20030093682 Virus detection system
05/15/2003US20030093669 Network architecture for secure communications between two console-based gaming systems
05/15/2003US20030093668 Architecture for manufacturing authenticatable gaming systems
05/15/2003US20030093667 Secure handling of stored-value data objects
05/15/2003US20030093614 Dram power management
05/15/2003US20030091190 Cipher generating device, cipher decoding device, cipher generating program, cipher decoding program, authentication system and electronic device
05/15/2003US20030091187 Apparatus and method for reading or writing user data
05/15/2003US20030091186 Apparatus and method for reading or writing user data
05/15/2003US20030090698 Processing copy protection signals
05/15/2003US20030089675 Authenticating resource requests in a computer system
05/14/2003EP1310923A2 Public key infrastructure (PKI) based system, method, device and program
05/14/2003EP1310284A2 Architecture for manufacturing authenticatable gaming systems
05/14/2003EP1310283A2 Network architecture for secure communications between two console-based gaming systems
05/14/2003EP1310074A2 A method and an apparatus for granting use of a session of a packet data transmission standard designated by an identifier
05/14/2003CN1108594C Method and system for performing electronic money transactions
05/13/2003US6564322 Method and apparatus for watermarking with no perceptible trace
05/08/2003WO2003039064A1 Authenticating resource requests in a computer system
05/08/2003WO2003039008A2 Method and apparatus for decoding lattice codes and multilevel coset codes
05/08/2003WO2003038706A1 Electronic transaction system
05/08/2003WO2003038627A1 Communication method, data processing apparatus, and program
05/08/2003WO2003038578A2 User access control to distributed resources on a data communications network
05/08/2003WO2003038572A2 System and method for protecting a peripheral device against hot plug attacks
05/08/2003US20030088785 ID installable LSI, secret key installation method, LSI test method, and LSI development method
05/08/2003US20030088784 Systems and methods for secure transaction management and electronic rights protection
05/08/2003US20030088610 Multi-core multi-thread processor
05/08/2003US20030086565 Enhanced ANSI X9.17 and FIPS 186 pseudorandom number generators with forward security
05/08/2003CA2500597A1 Authenticating resource requests in a computer system
05/08/2003CA2433009A1 Electronic transaction system
05/07/2003EP1308820A2 Encrypted program distribution system using computer network
05/07/2003EP1307996A1 A method and system for secure transmission of data
05/07/2003EP1307993A2 Linear transformation for symmetric-key ciphers
05/07/2003EP1307840A1 System and method for production and authentication of original documents
05/07/2003EP1049989B1 Access to content addressable data over a network
05/07/2003CN1416647A 有条件访问 Conditional Access
05/07/2003CN1108040C Decipher method and electronic device thereof
05/06/2003US6560707 Multimedia coordination system
05/06/2003US6560350 Methods for detecting alteration of audio
05/06/2003US6560338 Limiting delays associated with the generation of encryption stream ciphers
05/06/2003US6560336 Apparatus for operating double vector and encrypting system including the same
05/02/2003EP1306750A2 Multi-scalar multiplication computation in elliptic curve signature verification
05/02/2003EP1306748A2 Modular squaring circuit, modular squaring method, and modular squaring program
05/02/2003EP1305911A2 Techniques for performing umts-authentication using sip (session initiation protocol) messages
05/02/2003EP1305907A2 Cryptography private key storage and recovery method and apparatus
05/02/2003EP0961438B1 Authentication system, authentication device, authentication data producing device, and authentication method
05/02/2003EP0839418B1 Cryptographic method and apparatus for non-linearly merging a data block and a key
05/01/2003WO2003036902A2 Method and apparatus for a packet classifier using a two-step hash matching process
05/01/2003WO2003036886A2 Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers
05/01/2003WO2003036884A2 Method and apparatus for integration of communication links with a remote direct memory access protocol
05/01/2003WO2003036863A1 Public key cryptographic method based on braid groups
05/01/2003WO2003036508A2 Stream processor with cryptographic co-processor
05/01/2003WO2003036485A2 System and method for caching dram using an egress buffer
05/01/2003WO2003036482A2 Multi-core multi-thread processor
05/01/2003WO2003036450A2 Dram power management
05/01/2003WO2002098042A3 Method and apparatus for establishing usage rights for digital content to be created in the future
05/01/2003US20030084336 Microprocessor resistant to power analysis
05/01/2003US20030084309 Stream processor with cryptographic co-processor
05/01/2003US20030084295 System and method for protecting a peripheral device against hot plug attacks
05/01/2003US20030084282 Method and apparatus for certification and authentication of users and computers over networks
05/01/2003US20030084281 Data management system, data processing system, and computer-readable medium having on which data management program is recorded
05/01/2003US20030084171 User access control to distributed resources on a data communications network
05/01/2003US20030084013 Encoding of data and extraneous information into synthetic gene sequences and the retrieval of same
05/01/2003US20030084012 Method for encoding the volumetric information of a virtual object and the retrieval of same
05/01/2003US20030081691 Method and apparatus for decoding lattice codes and multilevel coset codes
05/01/2003US20030081615 Method and apparatus for a packet classifier
05/01/2003US20030081582 Aggregating multiple wireless communication channels for high data rate transfers
05/01/2003CA2464409A1 Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers
04/2003
04/30/2003CN1415147A Portable data storage medium provided with access protection by key for redecomposition
04/30/2003CN1415106A Portable data storage medium provided with access protection by rendering messages unfamiliar
04/29/2003US6557102 Digital trust center for medical image authentication
04/29/2003US6556680 Method for authorization check
04/24/2003WO2003034732A1 Interactive protocol for remote management of access control to scrambled data
04/24/2003WO2003034425A1 Apparatus and method for reading or writing block-wise stored user data
04/24/2003WO2003034227A2 Apparatus and method for reading or writing user data
04/24/2003WO2003034190A2 Secure content distribution method and system
04/24/2003US20030079141 Method for securing the authenticity of hardware and software in a networked system
04/24/2003US20030079139 Portable data carrier provide with access protection by rendering messages unfamiliar
04/24/2003US20030079134 Method of secure print-by-reference
04/24/2003US20030079042 Authoring system, authoring key generator, authoring device, authoring method, and data supply device, information terminal and information distribution method
04/23/2003EP1303958A2 Data transmission using pulse width modulation
04/23/2003EP1303941A1 Substitution-box for symmetric-key ciphers
04/23/2003EP1303808A2 Computer software installation
04/23/2003EP1303802A1 System and method of verifying the authenticity of dynamically connectable executable images
04/23/2003EP1171849B1 Communication system and method for efficiently implementing electronic transactions in mobile communication networks
04/23/2003CN2546935Y Cipher inputting secret operating apparatus
04/23/2003CN1413320A Method of authenticating anonymous users while reducing potential for
04/23/2003CN1412728A Electronic digital code antifalse technique of electromechanical products and its application system
04/23/2003CN1106745C Information packet program component detector
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