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Nvidia Assigned Three Patents

Secure storage with SCSI devices, secure information storage system, confidential information protection

Secure storage with SCSI storage devices
Nvidia Corporation, Santa Clara, CA, has been assigned a patent (9,071,581) developed by Overby, Mark A., Bothell, WA, for a “secure storage with SCSI storage devices.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A security command protocol provides secure authenticated access to an auxiliary security memory within a SCSI storage device. The auxiliary security memory acts as an authenticated separate secure storage area that stores sensitive data separately from the user data area of the SCSI storage device. The security command protocol is used to access the auxiliary security memory. The security command protocol allows a trusted execution environment to transport sensitive data to and from storage in the auxiliary security memory. The regular execution environment does not have access to the security command protocol or the auxiliary security memory. The security command protocol and auxiliary security memory eliminate the need for additional secure storage components in devices that provide the security features of firmware TPM.

The patent application was filed on September 23, 2013 (14/034,380).

Secure information storage
Nvidia Corporation, Santa Clara, CA, has been assigned a patent (9,069,990) developed by Tsu, William, San Jose, CA, for a “secure information storage system and method.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”The present invention systems and methods facilitate secure communication of information between devices. A present invention system and method can enable secure communication of proprietary content in a HDCP compliant configuration. In one embodiment, a high definition content protection key secure management method is utilized to enable efficient and secure storage of a HDCP key. A high definition content protection key value is received. The high definition content protection key is encrypted utilizing a secure key value, wherein the secure key value is not accessible via an external port. In one exemplary implementation, the secure key is stored in fuses included in a processing unit. The results of said encrypting in a memory, (e.g., a BIOS memory, flash memory, etc.).

The patent application was filed on November 28, 2007 (11/998,256).

Confidential information protection
Nvidia Corporation, Santa Clara, CA, has been assigned a patent (9,069,706) developed by Sriram, Parthasarathy, Los Altos, CA, Grigor, Gordon, San Francisco, CA, and Fang, Shu-Jen, Cupertino, CA, for a “confidential information protection system and method.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Efficient and effective permission confidential information protection systems and methods are described. The secure information protection systems and methods facilitate storage of confidential information in a manner safe from rogue software access. In one embodiment, a confidential information protection method is implemented in hardware and facilitates protection against software and/or Operating System hacks. In one exemplary implementation, a confidential information protection method includes setting a permission sticky bit flag to a default state upon system set up. The permission sticky bit flag access permission indication is adjusted at system reset in accordance with an initial application instruction. Access to the confidential information is restricted in accordance with the permission sticky bit and the permission sticky bit is protected from adjustments attempting to violate the permission indication. For example, another software application can not access or alter confidential information, (e.g., an encryption key, initialization vector, etc.) if a permission sticky bit is designated as the highest security rating, (e.g., disabling read permission and write permission until system reset).

The patent application was filed on February 11, 2008 (12/069,713).

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