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)
06/2003
06/25/2003EP0676109B1 Method of extending the validity of a cryptographic certificate
06/25/2003CN1112785C Dynamic encryption method for document and its system
06/24/2003US6584565 Method and apparatus for long term verification of digital signatures
06/24/2003US6584563 User support system for cryptographic communication in network systems
06/19/2003WO2003050998A1 Digital signature and authentication method and apparatus
06/19/2003WO2003050997A1 Methods and apparatus for secure distribution of program content
06/19/2003WO2003050784A1 Encryption apparatus applying kasumi encryption algorithm
06/19/2003WO2003050647A2 Automated digital rights management and payment system with embedded content
06/19/2003US20030115470 Method and apparatus for embedding encrypted images of signatures and other data on checks
06/19/2003US20030115463 Requesting Execution of Instructions on Accounts in ABDS System
06/19/2003US20030115453 Connecting a virtual token to a physical token
06/19/2003US20030115450 Method and apparatus for effecting secure document format conversion
06/19/2003CA2469198A1 Digital signature and authentication method and apparatus
06/18/2003EP1320083A1 Authentification thanks to the entry of a structured stream of words
06/18/2003EP1320027A2 Elliptic curve cryptosystem apparatus, method and program
06/18/2003EP1320016A2 Dynamic evaluation of access rights
06/18/2003EP1320015A2 System and method for providing manageability to security information for secured items
06/18/2003EP1320014A2 Method and apparatus for accessing secured electronic data off-line
06/18/2003EP1320011A2 Method and architecture for providing pervasive security to digital assets
06/18/2003EP1319520A2 Method and apparatus for embedding encrypted images of signatures and other data on checks
06/18/2003EP1224767B1 Method, article and apparatus for registering registrants, such as voter registrants
06/18/2003CN1425231A Cryptography method on elliptic curves
06/18/2003CN1424643A Handwriting encrypting method and device thereof
06/18/2003CN1111809C Data management module, data copy management device and system
06/17/2003US6581160 Revocation information updating method, revocation information updating apparatus and storage medium
06/17/2003US6580370 Integrated circuit with protection device
06/12/2003WO2003049440A1 Data coding
06/12/2003WO2003049359A1 Information content distribution based on privacy and/or personal information
06/12/2003WO2003048939A1 Methods and systems for cryptographically protecting secure content
06/12/2003WO2003048924A1 Galois field linear transformer
06/12/2003WO2003048918A1 Galois field multiplier system
06/12/2003WO2002021768A3 Location-independent packet routing and secure access in a short-range wireless networking environment
06/12/2003US20030110133 Automated digital rights management and payment system with embedded content
06/12/2003US20030110131 Method and architecture for providing pervasive security to digital assets
06/12/2003US20030108195 Encryption circuit
06/12/2003CA2465553A1 Information content distribution based on privacy and/or personal information
06/11/2003EP1317839A2 Apparatus and method for selectively encrypting the payload portion of multimedia data sent over a network
06/11/2003EP1317816A2 Linking public key of device to information during manufacture
06/11/2003CN1423764A Network enabled application software system and method
06/10/2003US6578057 Method of and apparatus for deriving prime numbers, as well as record medium having program for executing prime number deriving method recorded thereon
06/10/2003CA2414057A1 Elliptic curve cryptosystem apparatus, storage medium storing elliptic curve cryptosystem program, and elliptic curve cryptosystem arithmetic method
06/05/2003WO2003047161A1 Method for registering and enabling pki functionalities
06/05/2003WO2003047154A1 Security reconfiguration in a universal mobile telecommunications system
06/05/2003US20030105907 System and method for caching DRAM using an egress buffer
06/05/2003US20030105872 Data interfacing method and apparatus
06/05/2003US20030105791 Galois field multiplier system
06/05/2003US20030105790 Galois field linear transformer
06/05/2003US20030105721 Systems and methods for secure transaction management and electronic rights protection
06/05/2003US20030105719 Information content distribution based on privacy and/or personal information
06/05/2003US20030105718 Secure electronic content distribution on cds and dvds
06/05/2003US20030103629 Generation of secret quantities of integrated circuit indentification
06/05/2003US20030102959 Process for securing the privacy of data transmission
06/05/2003CA2468622A1 Method for registering and enabling pki functionalities
06/04/2003EP1316903A1 Electronic trading server, seller client, buyer client, and electronic trading method
06/04/2003EP1316171A1 Person-centric account-based digital signature system
06/04/2003EP1316168A1 Method and system for using electronic communications for an electronic contact
06/04/2003EP1040439A4 Portable 1-way wireless financial messaging unit
06/04/2003CN2554750Y Group coded anti-forged mark
06/03/2003US6574735 Information signal recording/reproducing system, information signal recording device, information signal reproducing device and information signal recording/reproducing process
06/03/2003US6574611 Information processing apparatus and method, information management apparatus and method, and information providing medium
06/03/2003US6574609 Secure electronic content management system
05/2003
05/30/2003WO2003045106A1 Encrypting a pseudo-noise (pn) sequence before spreading a communication signal
05/30/2003WO2003044747A2 Method and device for authenticating message origin
05/30/2003WO2002043032A3 Display device and methods of manufacture and control
05/30/2003WO2002041545A9 Wireless clock synchronization
05/29/2003US20030101350 Data processing method and system of same portable device data processing apparatus and method of same and program
05/29/2003US20030101344 Establishing Initial PuK-Linked Account Database
05/29/2003US20030100291 Security reconfiguration in a universal mobile telecommunications system
05/28/2003EP0850523A4 Document authentication system and method
05/28/2003EP0815526B1 Deferred billing, broadcast, electronic document distribution system and method
05/28/2003EP0732014B1 Apparatus and method for storing data
05/28/2003CN1421000A Generating key hierarchy for use in isolated execution environment
05/28/2003CN1420659A Method and apparatus for authenticating and veritying user and computer over network
05/28/2003CN1420480A Data processing apparatus and method
05/28/2003CN1420443A Application program package and system for allowing user to use and publish same based on conditions
05/27/2003US6571263 Random number generating apparatus
05/27/2003US6571254 Method and apparatus for accessing an object, and storage medium storing a program for controlling access to an object
05/27/2003US6570988 Simple technique for implementing a cryptographic primitive using elementary register operations
05/22/2003WO2003042988A1 System and method for controlling the use and duplication of digital content distributed on removable media
05/22/2003WO2003042225A2 Secure handling of stored-value data objects
05/22/2003WO2003021860A3 Method and apparatus for constructing digital certificates
05/22/2003WO2002017635A3 Transmitting and processing protected content in a conditional access system
05/22/2003US20030097573 Central Key Authority Database in an ABDS System
05/22/2003US20030097570 Managing Database for Identifying to Recipients Security Features of Devices Generating Digital Signatures
05/22/2003US20030097569 Reliably Identifying Information of Device Generating Digital Signatures
05/22/2003US20030097567 Device and method for authenticating user's access rights to resources
05/22/2003US20030097565 Central Key Authority (CKA) Database for User Accounts in ABDS System
05/22/2003US20030097562 Managing Database for Reliably Identifying Information of Device Generating Digital Signatures
05/22/2003US20030097561 Gauging Risk in Electronic Communications Regarding Accounts in ABDS System
05/22/2003US20030097518 Method and apparatus for integration of communication links with a remote direct memory access protocol
05/22/2003US20030097344 Multi-purpose transaction card system
05/22/2003US20030095665 Incorporating Security Certificate During Manufacture of Device Generating Digital Signatures
05/22/2003US20030095662 System and method for encrypting spread spectrum carrier
05/22/2003US20030095659 Cryptographic key, encryption device, encryption/decryption device, cryptographic key management device, and decryption device
05/22/2003DE10220220C1 Localization device for optically-readable code or text uses localization pattern with at least four 2-dimensional elements of 2 different types
05/21/2003EP1313259A2 Cryptographic key, encryption/decryption device, cryptographic key management device using a chaotic function
05/21/2003EP1311930A2 Systems and methods for authenticating a user to a web server
05/21/2003EP1311920A2 System and method for providing security to components using shared names
05/21/2003EP1267514A9 Encryption secured against Differential Power Analysis (DPA)
05/21/2003EP1040617B1 An improved des encryption and decryption system and method
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