| 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) |
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| 03/02/2010 | US7673152 Microprocessor with program and data protection function under multi-task environment |
| 03/02/2010 | US7672455 Method and apparatus for data encryption |
| 02/25/2010 | US20100049992 Application executing device, managing method, and program |
| 02/24/2010 | EP2157726A2 Method and device for inserting and authenticating a digital signature in digital data |
| 02/24/2010 | CN201413595Y High speed password card based on double DSP double bus structure |
| 02/24/2010 | CN100592682C Method and device for safely assigning content of program |
| 02/24/2010 | CN100592681C Ciphering method, ciphering device, deciphering method and deciphering device |
| 02/23/2010 | US7669227 Information management system |
| 02/23/2010 | US7669055 Key transformation unit for a tamper resistant module |
| 02/23/2010 | US7669052 Authentication and encryption utilizing command identifiers |
| 02/23/2010 | US7668778 Charging system and charging method |
| 02/23/2010 | US7668533 Connection authentication in wireless communication network system |
| 02/23/2010 | US7668315 Local authentication of mobile subscribers outside their home systems |
| 02/23/2010 | US7668310 Cryptographic computation using masking to prevent differential power analysis and other attacks |
| 02/17/2010 | EP2154667A1 Key exchange device and key exchange method |
| 02/17/2010 | CN201408535Y Trusted hard disk facing to trusted computation cryptograph supporting platform |
| 02/17/2010 | CN201408507Y Encryption device for embedded-type equipment |
| 02/17/2010 | CN100591008C Contents transmitting apparatus, contents receiving apparatus and contents transmitting method |
| 02/17/2010 | CN100590681C Intelligent test and analysis method for fire-fighting facilities of building |
| 02/16/2010 | US7665126 Mesh networks with exclusion capability |
| 02/16/2010 | US7664952 Service verifying system, authentication requesting terminal, service utilizing terminal, and service providing method |
| 02/16/2010 | US7664710 Remote authentication of two dimensional barcoded indicia |
| 02/16/2010 | US7664708 System for controlling the distribution and use of digital works using digital tickets |
| 02/16/2010 | US7664697 Personal electronic settling system and a terminal and control apparatus therefor |
| 02/16/2010 | CA2381089C Method and device for guaranteeing the integrity and authenticity of a set of data |
| 02/16/2010 | CA2324156C Authentication of data in a digital transmission system |
| 02/11/2010 | US20100034382 Signcryption scheme based on elliptic curve cryptography |
| 02/10/2010 | EP2151947A1 Signcryption scheme based on elliptic curve cryptography |
| 02/10/2010 | EP2151086A1 Method for establishing a random number for security and encryption, and a communications apparatus |
| 02/10/2010 | EP1336310B1 Methods and apparatus for identifying asset location in mobile communication networks |
| 02/10/2010 | CN101645773A Signcryption scheme based on elliptic curve cryptography |
| 02/09/2010 | US7660992 Electronic data storage system and method thereof |
| 02/09/2010 | CA2409200C Cryptographic method and apparatus |
| 02/05/2010 | CA2670184A1 Signcryption scheme based on elliptic curve cryptography |
| 02/04/2010 | WO2010013699A1 Signature system |
| 02/04/2010 | WO2010013550A1 Random number generation and management method, and device |
| 02/04/2010 | US20100030832 Method and Apparatus for Performing Computations Using Residue Arithmetic |
| 02/04/2010 | US20100024629 System, method and computer program for ensuring secure use of music playing data files |
| 02/03/2010 | CN101641707A Authentication system, server used in authentication system, mobile communication terminal, and program |
| 02/03/2010 | CN100588155C Method for implementing cryptographic algorithm used for finding public exponent in electronic component |
| 02/03/2010 | CN100588142C IC card and encrypted communication method between IC cards thereof |
| 02/02/2010 | USRE41096 Distribution system, semiconductor memory card, receiving apparatus, computer-readable recording medium and receiving method |
| 02/02/2010 | US7657760 Method for sharing encrypted data region among processes in tamper resistant processor |
| 02/02/2010 | US7657749 Communication scheme using outside DTCP bridge for realizing copyright protection |
| 02/02/2010 | US7657736 System and method for compressing secure e-mail for exchange with a mobile data communication device |
| 02/02/2010 | US7656865 Method for transmission of data telegrams in a switched cyclical communication system |
| 02/02/2010 | CA2212574C Systems and methods for secure transaction management and electronic rights protection |
| 01/28/2010 | US20100024002 Authentication system |
| 01/28/2010 | US20100021004 Hiding and Detecting Messages in Media Signals |
| 01/27/2010 | CN100586149C Prepaid pay television system |
| 01/27/2010 | CN100585670C Computer system and method for safely adding multiple integers |
| 01/26/2010 | US7653946 Method and system for secure distribution of digital documents |
| 01/26/2010 | US7653939 Data processing system, data processing method, data processing apparatus, license system, and program providing medium |
| 01/26/2010 | US7653855 Random number test circuit, random number generation circuit, semiconductor integrated circuit, IC card and information terminal device |
| 01/26/2010 | US7653817 Signature schemes using bilinear mappings |
| 01/26/2010 | US7653378 Authentication system for mobile terminal having electronic money function |
| 01/26/2010 | US7653201 Implicit certificate scheme |
| 01/26/2010 | US7653143 Digital television transmitter and receiver for transmitting and receiving dual stream using 4 level vestigial side band robust data |
| 01/26/2010 | CA2338854C Nitric esters and nitrate salts of specific drugs |
| 01/21/2010 | US20100017611 Authentication system |
| 01/21/2010 | US20100017610 Authentication system |
| 01/21/2010 | US20100017459 Device and method for updating code |
| 01/20/2010 | EP2146290A1 Apparatus method and system for registration of a publisher prefix for document object identifiers |
| 01/20/2010 | EP1337982B1 Authenticating method and device |
| 01/20/2010 | CN201385646Y Automobile anti-theft alarm system |
| 01/20/2010 | CN100583872C Portable device for securing packet traffic in host platform |
| 01/20/2010 | CN100583755C Use of isogenies for design of cryptosystems |
| 01/20/2010 | CN100583740C Data processing method, its program, and its device |
| 01/20/2010 | CN100583739C Cryptographic apparatus, cryptographic method, and storage medium thereof |
| 01/20/2010 | CN100583192C Data converting device and data converting method |
| 01/20/2010 | CN100583191C Text encryption system and method |
| 01/20/2010 | CN100583190C Text encryption system and method |
| 01/19/2010 | US7650646 Information-recording apparatus, information reproduction apparatus, information-recording method, information reproduction method and computer program |
| 01/19/2010 | US7650503 Memory card |
| 01/19/2010 | US7650495 Security gateway for online console-based gaming |
| 01/14/2010 | US20100008504 Data transmitting apparatus, data receiving apparatus, data transmitting method, and data receiving method |
| 01/13/2010 | CN101626502A Data transmitting apparatus, data receiving apparatus, data transmitting method, and data receiving method |
| 01/13/2010 | CN100581154C Method and system for upgrading automation level of network access |
| 01/13/2010 | CN100581103C Securely processing of client credentials used for WEB-based access to resources |
| 01/13/2010 | CN100580610C Security link management method in dynamic networks |
| 01/12/2010 | USRE41074 Copy prevention method and apparatus for digital video system |
| 01/12/2010 | US7646871 Digital content encrypting apparatus and operating method thereof |
| 01/07/2010 | US20100005301 Authentication and encryption utlizing command identifiers |
| 01/06/2010 | EP1234239B1 Microprocessor arrangement having an encoding function |
| 01/06/2010 | CN100578557C Authentication device, mobile terminal, and authentication method |
| 01/05/2010 | US7644429 Broadcast and reception, and conditional access system therefor |
| 01/05/2010 | US7644043 Check processing apparatus, program, electronic payment system, and check processing method |
| 01/05/2010 | US7643855 Portable terminal device |
| 01/05/2010 | US7643721 Moving picture processing device, information processing device, and program thereof |
| 01/05/2010 | US7643635 Digital content decrypting apparatus and operating method thereof |
| 12/31/2009 | US20090327137 Method and apparatus for establishing usage rights for digital content to be created in the future |
| 12/30/2009 | EP2138990A1 Built-in device with fault attack countermeasure function |
| 12/30/2009 | EP1428099B1 A texturing system |
| 12/30/2009 | CN101617351A Cryptogram generating device, cryptogram communication system, and group parameter generating device |
| 12/30/2009 | CN100576174C Probable prime numbers for cryptographic applications |
| 12/29/2009 | US7640360 Network system including a terminal device capable of registering with a server |
| 12/29/2009 | US7639815 Digital content decrypting apparatus and operating method thereof |
| 12/29/2009 | US7639814 Digital content decrypting apparatus and operating method thereof |
| 12/29/2009 | US7639813 Digital content decrypting apparatus and operating method thereof |
| 12/29/2009 | US7639812 Digital content encrypting apparatus and operating method thereof |