MICROCIRCUIT CARD PROTECTED FROM INVASION

PURPOSE: To perform protection from intrusion by a dynamic means by arranging at least one distortion sensor on a micro-circuit, turning it in a prestressed state and detecting the change of the prestressed state by the trial of taking out the micro-circuit from a card. CONSTITUTION: At least one di...

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Bibliographische Detailangaben
Hauptverfasser:	JIYASETSUKU KOBUARUSUKII, FUIRITSUPU MAE, JIYANNPIEERU ABUNIE, JIRU RIJIMATSUKU
Format:	Patent
Sprache:	eng
Schlagworte:	BOOK COVERS BOOKBINDING CALCULATING COMPUTING COUNTING DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR ELECTRIC DIGITAL DATA PROCESSING FILES HANDLING RECORD CARRIERS LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS PERFORMING OPERATIONS PHYSICS PRESENTATION OF DATA PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR RECOGNITION OF DATA RECORD CARRIERS SPECIAL PRINTED MATTER TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE: To perform protection from intrusion by a dynamic means by arranging at least one distortion sensor on a micro-circuit, turning it in a prestressed state and detecting the change of the prestressed state by the trial of taking out the micro-circuit from a card. CONSTITUTION: At least one distortion sensor C1 -C3 is inserted in a characteristic and artificial prestressed state and the prestressed state is destructed by the trial of taking out the micro-circuit 10 from the card. Thus, when a dishonestly acting person to access the micro-circuit tries the intrusion, the protective layer is surely damaged. Thus, the card does not function or it is decided to report to a service station to cooperate that the card is intruded.