DATA STRUCTURE, DATA PROCESSOR, DATA PROCESSING METHOD, AUTHENTICATION APPARATUS, AUTHENTICATION METHOD, COMPUTER PROGRAM, AND RECORDING MEDIUM

PROBLEM TO BE SOLVED: To specify the cause of an authentication fail when authentication is failed. SOLUTION: The data structure of data to be authenticated is added to a header area D1 and a data area D3 to prepare a header authentication data area D2 and an authentication data area D4. The header...

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Bibliographische Detailangaben
Hauptverfasser:	SHIBUYA KOUSHI, MORIAI SHIHO, SHIMADA SHUGI
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING CALCULATING CODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHERPURPOSES INVOLVING THE NEED FOR SECRECY COMPUTING COUNTING CRYPTOGRAPHY DISPLAY EDUCATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS SEALS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To specify the cause of an authentication fail when authentication is failed. SOLUTION: The data structure of data to be authenticated is added to a header area D1 and a data area D3 to prepare a header authentication data area D2 and an authentication data area D4. The header authentication data are D2 is prepared for authenticating the validity of the header area D1 and the authentication data area D4 is prepared for respectively authenticating the validity of the header authentication data area D2 and that of the data area D3. Since two sorts of authentication are executed, a cause of an authentication fail can be easily specified. COPYRIGHT: (C)2006,JPO&NCIPI