US 2022/0187997 A1 · SYSTEM, DEVICE, AND METHOD FOR WRITING DATA TO PROTECTED REGION

Abstract

A storage device configured to communicate with a host, the storage device including: a memory including a protected region; and a controller configured to provide the host with a first response including a first device message authentication code and a first device message, receive a first write request from the host, the first write request including a first host message authentication code and a first host message, generate a first message verification code based on the first device message authentication code and the first host message, verify the first write request based on the first host message authentication code and the first message verification code, and write data included in the first write request to the protected region when the verification of the first write request succeeds.

Claims22

Dependent claims

A method of writing data to a protected region in response to a write request of a host, the method comprising:

transmitting a first response to the host, the first response including a first device message authentication code and a first device message;
receiving a first request from the host, the first request including a first host message authentication code and a first host message;
generating a first message verification code based on the first device message authentication code and the first host message;
verifying the first request based on the first host message authentication code and the first message verification code;
generating a second device message authentication code based on a second device message and the first message verification code, the second device message including a result of verifying the first request;
and
transmitting a second response to the host, the second response including the second device message authentication code and the second device message.

4 more elements

A storage device configured to communicate with a host, the storage device comprising:

a memory including a protected region;
and
a controller configured to provide the host with a first response including a first device message authentication code and a first device message, receive a first write request from the host, the first write request including a first host message authentication code and a first host message, generate a first message verification code based on the first device message authentication code and the first host message, verify the first write request based on the first host message authentication code and the first message verification code, and write data included in the first write request to the protected region when the verification of the first write request succeeds.

A method of writing data to a storage device including a protected region, the method comprising:

transmitting a first request to the storage device, the first request including a first host message authentication code and a first host message;
receiving a first response from the storage device, the first response including a first device message authentication code and a first device message;
generating a first message verification code based on the first host message authentication code and the first device message;
verifying the first response based on the first device message authentication code and the first message verification code;
generating a second host message authentication code based on the first message verification code and a second host message when the verification of the first response succeeds;
and
transmitting a second request to the storage device, the second request including the second host message authentication code and the second host message.

4 more elements

Dependencies are inferred from the claim text.

System, device, and method for writing data to protected region

Life of this patent

System, device, and method for writing data to protected region

Life of this patent

Abstract

Claims22