Microsoft Technology Licensing, LLC

Seagate Technology Incorporated

Hedley Combs Davis

Jonathan Williams Haines

Prakash R Stirret

A game console determines if a hard disk drive is authorized for use with the game console by analyzing an encrypted certificate. The encrypted certificate is stored in memory of the drive. Upon detection of the drive, the game console receives the encrypted certificate and decrypts it. The certificate contains parameters relating to the drive, such as the drives serial number, model number, memory capacity of the drive, and a trademark indicative of the drive's authenticity, for example. The game console also receives these parameters from the drive in unencrypted form. The parameters extracted from the encrypted certificate are compared with the parameters read from the hard disk drive's memory. If the parameters match, the drive is determined to be authentic. The certificate is encrypted with the private key of a public-private key pair and decrypted with the corresponding public key in accordance with well known public-key cryptographic techniques.

Hard drive authentication

A disc drive apparatus that communicates with and provides data storage for a host computer wherein the disc drive is adapted to provide improved audio and visual data transfer operations. The disc drive determines whether the data transfer operation is related to audio/visual data and, if so, limits the number of retry attempts available during the data read or write command. Since audio visual data is more time critical than reliability critical, limiting retry attempts does not significantly impact presentation to the user. The disc drive also enables the transfer of relatively large blocks of data that can be transferred during a single command. Limiting the retry attempts and transferring more data during a single command significantly increases audio/visual data transfer throughput between the host computer and the disc drive.

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Milpitas, CA, United States of America

Hedley Combs Davis