| 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) |
|---|
| 09/28/2005 | CN1674492A Information-processing apparatus, control method, program and recording medium |
| 09/28/2005 | CN1674055A Text digital water mark technology based on symbol redundancy encoding |
| 09/28/2005 | CN1673983A Information processing apparatus, image forming apparatus, and electronic data movement canceling method |
| 09/27/2005 | US6950940 ABDS method utilizing security information in authenticating entity access |
| 09/27/2005 | US6950518 Data encryption system |
| 09/22/2005 | US20050210290 Contents transmitter apparatus, contents reciever apparatus and contents transmitting method |
| 09/22/2005 | US20050210269 Method and a system for biometric identification or verification |
| 09/22/2005 | US20050207571 Data cipher processors, AES cipher systems, and AES cipher methods using a masking method |
| 09/22/2005 | US20050207570 Encryption apparatus, program for use therewith, and method for use therewith |
| 09/22/2005 | US20050206353 System, method and program product to prevent unauthorized access to portable memory or storage device |
| 09/22/2005 | DE102005010779A1 Schlüsseldispositionsvorrichtung und System zur Ver-/Entschlüsselung von Daten Key scheduling device and system for encryption / decryption of data |
| 09/21/2005 | EP1578054A1 Cryptography-processing method, cryptography-processing apparatus and computer program |
| 09/21/2005 | EP1577782A1 Method and system of external data storage |
| 09/21/2005 | EP1577749A2 Physical random number generator, method of generating physical random numbers and physical random number storing medium |
| 09/21/2005 | EP1119940B1 Countermeasure method in an electronic component using a secret key cryptographic algorithm |
| 09/21/2005 | EP1002393B1 System for generating electronic signatures in absolute security |
| 09/21/2005 | EP0860064B1 Parameterized hash functions for access control |
| 09/21/2005 | CN1672412A Storage of encrypted digital signals |
| 09/21/2005 | CN1672385A Security system for apparatuses in a network |
| 09/21/2005 | CN1672358A Groups signature scheme |
| 09/21/2005 | CN1672352A Advanced encryption standard (AES) hardware cryptographic engine |
| 09/21/2005 | CN1672173A Identification of digital data sequences |
| 09/21/2005 | CN1671100A Contents transmitter apparatus, contents receiver apparatus and contents transmitting method |
| 09/21/2005 | CN1220382C Signal tracing system and method |
| 09/21/2005 | CN1220167C Cipher control device |
| 09/20/2005 | US6948063 Securing electronic transactions over public networks |
| 09/20/2005 | US6947960 Randomness test utilizing auto-correlation |
| 09/20/2005 | US6947911 Method for making contract and system for processing contract |
| 09/20/2005 | US6947560 Method and device for effective key length control |
| 09/20/2005 | CA2162125C A repertoire of mappings for a cryptosystem |
| 09/15/2005 | WO2005086006A1 Access control method, access control system, meta data controller, and transmission system device |
| 09/15/2005 | US20050204220 Random number test circuit, random number generation circuit, semiconductor integrated circuit, IC card and information terminal device |
| 09/15/2005 | US20050204172 Information management system |
| 09/15/2005 | US20050204163 Methods and systems for protecting media content |
| 09/15/2005 | US20050203855 Information management system |
| 09/15/2005 | US20050203430 Recall device |
| 09/15/2005 | US20050201553 Cryptography-processing method, cryptography-processing apparatus and computer program |
| 09/14/2005 | EP1378092A4 System and method for message encryption and signing in a transaction processingsystem |
| 09/14/2005 | EP0956728B1 Method and apparatus for providing authentication security in a wireless communication system |
| 09/14/2005 | CN1669035A Methods and apparatus for a title transaction network |
| 09/14/2005 | CN1668995A Method for improving unpredictability of output of pseudo-random number generators |
| 09/14/2005 | CN1668082A Recall device |
| 09/13/2005 | US6944765 Method of authentication anonymous users while reducing potential for “middleman” fraud |
| 09/13/2005 | US6944600 System for controlling the distribution and use of digital works using digital tickets |
| 09/13/2005 | US6944295 Data-processing device and method of operating said device |
| 09/13/2005 | US6944181 Mobile IP communication scheme for supporting mobile computer move over different address spaces |
| 09/08/2005 | US20050198529 Information processing apparatus, authentication processing method, and computer program |
| 09/08/2005 | US20050198521 Program tamper detecting apparatus, method for program tamper detection, and program for program tamper detection |
| 09/08/2005 | US20050198093 Montgomery modular multiplier |
| 09/08/2005 | US20050197967 Secure printing |
| 09/08/2005 | US20050197963 Method and apparatus for establishing usage rights for digital content to be created in the future |
| 09/08/2005 | US20050196145 Content reproduction apparatus, content recording apparatus, network system, and content recording/reproduction method |
| 09/07/2005 | EP1571634A1 Recall device |
| 09/07/2005 | EP1571546A1 Random number generator |
| 09/07/2005 | EP1571545A2 Secure Printing |
| 09/07/2005 | EP1571524A2 Using a flexible rights template to obtain a signed rights label (SRL) for digital content in a rights management system |
| 09/07/2005 | CN1666522A Method for coding and decoding digital data stored or transmitted according to the pixels method for transmitting prioritised pixels |
| 09/07/2005 | CN1666459A False alteration prevention signature method |
| 09/07/2005 | CN1665184A Using a flexible rights template to obtain a signed rights label (SRL) for digital content |
| 09/07/2005 | CN1218531C Countermeasure method in electric component implementing elliptical curve type public key cryptography algorithm |
| 09/07/2005 | CN1218284C Message producing type signature device |
| 09/07/2005 | CN1218261C Smart card, method for handling transaction messages and corresponding communication device |
| 09/07/2005 | CN1218239C Digital data file scrambler and its method |
| 09/06/2005 | US6941253 Control code read-out system |
| 09/06/2005 | US6940977 Digital video and audio data encryption, decryption and system authentication |
| 09/06/2005 | US6940975 Encryption/decryption apparatus, encryption/decryption method, and program storage medium therefor |
| 09/06/2005 | CA2314349C Method and apparatus for cryptographically camouflaged cryptographic key storage, certificatio and use |
| 09/01/2005 | WO2005081195A1 A memory aid device |
| 09/01/2005 | WO2005081114A1 Information processing apparatus, and method for retaining security in information processing apparatus |
| 09/01/2005 | US20050193012 Private information management apparatus and method therefor |
| 09/01/2005 | US20050190924 System, method and program product for anonymous transfer of messages |
| 09/01/2005 | US20050190923 Encryption/decryption system and key scheduler with variable key length |
| 08/31/2005 | EP1569380A1 System for achieving anonymous communication of messages using secret key crytptography |
| 08/31/2005 | EP1569378A1 Key sharing system, shared key creation device, and shared key restoration device |
| 08/31/2005 | EP1177536B1 Method of deriving an identification number |
| 08/31/2005 | EP1159801B1 Method for verifying a message signature |
| 08/31/2005 | CN1663281A Method for generating hashes from a compressed multimedia content |
| 08/31/2005 | CN1663276A Robust signature for signal authentication |
| 08/31/2005 | CN1663175A System for authentication between devices using group certificates |
| 08/31/2005 | CN1663172A Round key generation for AES RIJNDAEL block cipher |
| 08/31/2005 | CN1661958A Microprocessor apparatus and method for optimizing block cipher cryptographic functions |
| 08/31/2005 | CN1661957A System for achieving anonymous communication of messages using secret key crytptography |
| 08/30/2005 | US6938166 Method of downloading of data to an MPEG receiver/decoder and MPEG transmission system for implementing the same |
| 08/30/2005 | US6938156 ABDS system and verification status for authenticating entity access |
| 08/30/2005 | US6938119 DRAM power management |
| 08/30/2005 | CA2284153C Method of downloading of data to an mpeg receiver/decoder and mpeg transmission system for implementing the same |
| 08/25/2005 | WO2005078574A1 Random number generation device |
| 08/25/2005 | US20050188225 Apparatus for achieving integrated management of distributed user information |
| 08/25/2005 | US20050188219 Method and a system for communication between a terminal and at least one communication equipment |
| 08/25/2005 | US20050188196 Method of nullifying digital certificate, apparatus for nullifying digital certificate, and system, program, and recoring medium for nullifying digital certificate |
| 08/25/2005 | US20050188192 Multiplex re-routing protection process and transmission system for implementing this process |
| 08/25/2005 | US20050188053 Apparatus and method for inspecting electronic announcement |
| 08/25/2005 | DE102005005335A1 Vorrichtung und Verfahren zur Hardware-Verschlüsselung Apparatus and method for hardware encryption |
| 08/24/2005 | EP0907935B1 A system and method for secure network electronic payment and credit collection |
| 08/24/2005 | CN1659909A Seamless public wireless local area network user authentication |
| 08/24/2005 | CN1659554A A coercion-free voting scheme |
| 08/24/2005 | CN1659512A AES mixcolumn transform |
| 08/24/2005 | CN1658112A Conditional access to digital rights management conversion |
| 08/23/2005 | US6934859 Authenticated search engines |
| 08/23/2005 | US6934845 Method and system of reversibly marking a text document with a pattern of extra blanks for authentication |