Data transcription in a data storage device

摘要

A method of protecting information in a data storage device is provided. The method includes receiving, in the data storage device, encrypted data via a host computer in which the data storage device is employed. The encrypted data is then decrypted, and re-encrypted, in the data storage device, either before storage or just before data is transferred back to the host computer. The decryption and re-encryption (transcription) is performed substantially independently of the host computer. In addition, a data storage device, readable by a computer system, for implementing the above method for protecting information is provided.

主权项

1. A method comprising:
(a) receiving, in a data storage device, encrypted data via a host computer with which the data storage device is employed as a hardware component, the host computer comprising a processing unit that is a separate hardware component from the data storage device; and (b) decrypting, and re-encrypting, the encrypted data within the data storage device without the processing unit of the host computer being exposed to any of the encrypted data in an unencrypted form.