Marvell International Limited

Leonard J Galasso

Gregory Burd

Siu-Hung Fred Au

Tze Lei Poo

Minda Zhang

Wayne C Datwyler

A storage drive includes a first memory that stores first text. A first processor generates a first instruction to decrypt the first text. A cryptographic module includes a second memory, a cryptographic device, a memory module, and a second processor. The second memory is inaccessible to the first processor and stores a cryptographic key. The cryptographic device accesses the second memory to obtain the cryptographic key and based on the first instruction, decrypts the first text. The memory module stores a status of execution of the first instruction by the cryptographic device. The second processor, prior to the cryptographic device decrypting the first text, forwards the first instruction to the cryptographic device and stores the status of execution of the first instruction in the memory module. The memory module is connected between the first and second processors and isolates the first processor from the second processor.

Method and storage device for isolating and preventing access to processor and memory used in decryption of text

Cryptographic apparatus having corresponding methods and computer-readable media comprise: a mailbox memory module to store cryptographic commands received from a client over a client bus, wherein the client is external to the cryptographic apparatus; and a secure processor to obtain the cryptographic commands from the mailbox memory module over a first secure internal bus, execute the cryptographic commands, and store a status of execution of the cryptographic commands in the mailbox memory module over the first secure internal bus, wherein the client obtains the status of the cryptographic commands from the mailbox memory module over the client bus.

Cryptographic module with secure processor

A data management system for a data storage device includes a management module and a memory module. The management module manages a plurality of nodes of a linked list based on one of a plurality of parameter sets that indicates a location of a data field within each of the plurality of nodes. The memory module stores data indicative of the one of the plurality of parameter sets.

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Trabuco Canyon, CA, United States of America

Leonard J Galasso