DEVICE CONTROL UNIT, COMPUTER, AND DEVICE CONTROL METHOD

PROBLEM TO BE SOLVED: To securely perform a control to a device without impairing the availability of a system. SOLUTION: When a control for making the device 13 usable or unusable is requested from a hot key 11 or an AP 70, the AP 70 determines whether password authentication is necessary or not. W...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	TAKAHASHI SHINJI, ITO KISHIKO, HAGIWARA MIKIO, KONO SEIICHI
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 DIGITAL DATA PROCESSING PHYSICS SEALS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To securely perform a control to a device without impairing the availability of a system. SOLUTION: When a control for making the device 13 usable or unusable is requested from a hot key 11 or an AP 70, the AP 70 determines whether password authentication is necessary or not. When the password authentication is necessary, an ACPI BIOS 40 receives the effect through a device driver 50, suspends an OS 60. An SMI handler 30 displays a password prompt to a display 12 in this state, and if the input password is proper, the control of the device 13 is instructed to an embedded controller 20. At that time, the embedded controller 20 determines the control instruction from the SMI handler 30 by monitoring a signal for switching to SMM. COPYRIGHT: (C)2006,JPO&NCIPI