Samsung Electronics Co., Ltd.

Jaegyu Lee

Bo-Ram Shin

Jisoo Kim

Young-Jin Park

Dong-Min Kim

Jeong-Woo Park

Songho Yoon

Byungjune Song

Heechang Cho

Wonchul Ju

In one embodiment, the method includes receiving, at a storage device, a request. The request includes a request message authentication code and write protect information. The write protect information includes at least one of start address information and length information. The start address information indicates a logical block address at which a memory area in a non-volatile memory of the storage device starts, and the length information indicates a length of the memory area. The method also includes generating, at the storage device, a message authentication code based on (1) at least one of the start address information and the length information, and (2) a key stored at the storage device; authenticating, at the storage device, the request based on the generated message authentication code and the request message authentication code; and processing, at the storage device, the request based on a result of the authenticating.

Storage system and method for performing and authenticating write-protection thereof

A storage system shares a system memory of a host. An operation method of the storage system may include receiving a command including information about a shared memory from the host, receiving a stream command having no timeout from the host, and transmitting a first packet associated with the stream command to the host in response to the received stream command. The first packet includes information for accessing the shared memory.

Operation method of storage system and host

A storage system includes a host configured to provide a request for setting or clearing secure write protection; and a storage device including a register, the register including fields that store information for controlling write protection attributes and a secure mode of the storage device, the storage device being configured to authenticate a request of the host when the secure mode is enabled, wherein the storage device is configured set or clear the secure write protection based on the request of the host when the storage device authenticates the request of the host, wherein after the secure mode is set, the storage device restricts an access of an unauthenticated host for setting and clearing write protection, and wherein the register comprises a secure write protection (WP) configuration masking field for controlling register fields of the register that are associated with write protection.

Storage system and method for performing secure write protect thereof

A memory card includes a nonvolatile memory and a device controller. The nonvolatile memory stores data. The device controller divides the nonvolatile memory into a plurality of logical units and stores an authentication program at a partial area the plurality of logical units. When connected with a host, the device controller enables the authentication program to be executable on the host.

Growing community of inventors

Suwon-si, South Korea

Jaegyu Lee