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Details
Inventors: Zinsky, Timothy R.; Shaver, Charles N.; Kaiser, Jr., Roger A.; Rawlins, Paul B.;
Assignee: Compaq Computer Corporation (Houston, TX)
Primary Examiner: Zimmerman; Brian
Assistant Examiner: Wilson, Jr.; William H.
Attorney, Agent or Firm: Akin, Gump, Strauss, Hauer & Feld, L.L.P.

A personal computer provides security features enabling control over access to data retained in the computer. The computer is secured by having the system ROM provide a password at power-on to a security device which controls access to the secured features. Once a password has been downloaded to the security device, a Protect Resources command is issued to the security device. To gain access to the secured feature after boot-up, the user provides the correct password to the security device and waits for approval from the security device. Since the security device only verifies the password and does not divulge it, security of the system is enhanced. Once access to protected resources is no longer required, the computer issues another Protect Resources command to the security device to once more lock access to the protected resources.

DETAILED DESCRIPTION A computer according to the present invention provides security by having the system ROM provide a password at power-on to a security device which controls access to the secured features.
Once a password has been downloaded to the security device, a Protect Resources command is issued to the security device which controls access to the protected resources such as the flash ROM.
To access the secured resource, the user provides the correct password to the security device.
The security device can only verify and not divulge the password, so security of the system is enhanced.
These and other features of the present invention will be understood upon reading of the following description along with the drawings.


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