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 Secure mass storage system for computers

Details
Inventors: Levy, Paul S.; Cornelius, Steve;
Assignee: VLSI Technology, Inc. (San Jose, CA)
Primary Examiner: Cain; David C.
Assistant Examiner:
Attorney, Agent or Firm: Harry M. Weiss & Associates, P.C., Weiss; Harry M., Moy; Jeffrey D.

The present invention relates to a system and method for securing sensitive data on mass storage devices. The system and method use an encryption device to encrypt sensitive data that is to be stored on the mass storage devices. A plurality of cryptographic keys are provided to ensure that only authorized personnel have the ability to access the encrypted data.

DETAILED DESCRIPTION In accordance with one embodiment of the present invention, it is an object of the present invention to create a rational standard for the selective encryption of sensitive data on a computer system.
It is another object of the present invention to provide a system and method which provides a low cost mechanism for selectively securing media resident data.
It is still another object of the present invention to provide a system and method which provides a low cost mechanism for selectively securing media resident data that poses a minimum possible impact to the end user who is already familiar and comfortable with accepted operating systems and off the shelf applications.
BRIEF DESCRIPTION OF THE PREFERRED EMBODIMENTS In accordance with one embodiment of the present invention, a secure mass storage system is disclosed.
The secured mass storage system is comprised of a Central Processing Unit (CPU) system.
Mass storage means are coupled to the CPU system for storing and transferring encrypted and non-encrypted data to and from the CPU system.
Peripheral control logic means are coupled to the mass storage means for reading the encrypted and non-encrypted data stored on the mass storage means.
Peripheral controller means are coupled to the peripheral control logic means for accessing the mass storage means.
Cryptographic means are coupled to the peripheral controller means for encrypting data to be stored on the mass storage means and for decrypting encrypted data stored on the mass storage means to be used by the CPU system.
Bus controller means are coupled to the peripheral controller means and to the CPU system for selecting a bus for transferring the encrypted and non-encrypted data to and from the mass storage means.
Operating system means are programmably stored in the CPU system for providing a command set for operation of the CPU system.
User supplied key means are programmably stored in the operating system means for accessing the encrypted data stored on the mass storage means


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