Title: Encipher/decryption processing system, encipher/decryption processing device, and encipher/decryption processing method
Application Number: 200480034980 Application Date: 2004.11.30
Publication Number: 1898711 Publication Date: 2007.01.17
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G09C1/00;H04L9/22;G06F7/58
Applicant(s) Name: Buffalo Inc. Address:
Inventor(s) Name: Ishidoshiro Takashi
Attorney & Agent: li xianglan
Abstract:
    The object of the invention is to provide an encryption/decryption system and an encryption/decryption device capable of suppressing the affect of load to a computer operation, having a high security based on an extreme difficulty to guess the encryption method, and eliminating the complexity of key management and key input. A security key 10 performing encryption and decryption according to a random number generated by a thermal noise random number generator 10e is detachably mounted on a personal computer 11. When the security key 10 is mounted, data 11b operated in the personal computer 11 is automatically encrypted or decrypted. That is, since the encryption/decryption device using the thermal noise random number generator is detachably mounted on the computer, it is possible to use it like key operation and assure a high security.
Time: 17