Copyright protection system, encryption device, decryption...
Copyright protection system, modular exponentiation...
Copyrighted digital data management method, contents...
Creation of image file
Creation of image file
Cryptographic apparatus for performing cryptography on a...
Cryptographic method and apparatus
Cryptographic method and apparatus
Data access control
Data authentication
Data bus line and bus having an encryption/decryption device
Data converter and recording medium on which program for...
Data distributing apparatus and terminal apparatus for data...
Data distributing system and recording medium used for it
Data generating apparatus and data verifying apparatus
Data management apparatus, data management method, and...
Data management system, data processing system, and...
Data management system, data processing system, and...
Data outputting method, data outputting apparatus, data...
Data processing