Samsung Electronics Co., Ltd.

Jisoo Kim

Jaegyu Lee

Bo-Ram Shin

Young-Jin Park

Younsung Chu

Chanik Park

Seungjae Lee

Dongwook Kim

Tae-Hun Kim

Bo-Kyung Seong

Sangkwon Moon

Hyunkyo Oh

Yongsuk Lee

Chul-Yong Cho

Gyoosang Choi

Sang-Jin Oh

Seung-Jae Lee

Heewon Lee

Kyungjin Lee

MinHee Lee

Sangkyun Im

Yonggu Do

Moonwook Oh

Sang Lyul Min

Woohyun Kang

Daniel Lee Helmick

Jinwook Lee

Youngdeok Seo

Byung-Gook Kim

Sungho Yoon

Hong-mook Choi

Boseok Moon

Changhwan Kim

Hyunsook Hong

Hyungsup Kim

Jaehoo Park

Seongnam Kwon

Taesung Jung

Mingon Shin

Jin-Hee Ma

Myeongjong Ju

Donghyun Song

Jin Gu Jeong

Kyungwoo Noh

Younghyun Ji

Sheayun Lee

Taeseok Hwang

Sukhee Lee

Chanha Kim

Youngjun Hwang

Dawoon Jung

Kwangwoo Lee

Yunjung Lee

Seungkyung Ro

Moonsang Kwon

Joowhan Lee

Hyeontaek Lim

Jinyoung Lee

Donghoo Lim

Hwasoo Lee

Hee-Tai Oh

Garam Kim

Xingguang Feng

Seongwook Jeong

Woo-Hyun Lee

Sanghee Lee

Byung-gook Kim

Sang Young Ye

Seokgi Hong

Sangdok Mo

Mungyu Bae

Moonchan Park

Youngtak Noh

Jintaek Kwon

Youngjoo Seo

Eric Hibbard

Myeongjong Lee

Seongchan Jo

A storage device includes a device identification module configured to generate a device identifier, a bootloader configured to generate a device identification key pair based on the device identifier and perform booting of the storage device, attester firmware configured to generate a device certificate based on the device identification key pair and report security information on the device to a host, and a measurement manager configured to perform a measurement operation for the device identification module, the bootloader, and the attester firmware, store a first measurement value of the device identification module in response to determining that the first measurement value matches first information, determine whether a second measurement value of the bootloader matches second information in response to storing the first measurement, store the second measurement value in response to determining that the second measurement value matches the second information, determine whether a third measurement value of the attester firmware matches third information in response to the second measurement value being stored, store the third measurement value in response to determining that the second measurement value matches the second information, and transmit the stored first measurement value, the stores second measurement value, and the stored third measurement value to the attester firmware.

Storage device, operating method of storage device, and processor of storage device

Provided is a system including a memory device including an interface configured to receive a measurement value generation request signal from a host and transmit a first measurement value and a second measurement value to the host, attester firmware configured to receive measurement values for a plurality of pieces of firmware, a bootloader configured to perform booting, a first register configured to record a first measurement value of the bootloader, and a second register configured to record a second measurement value for the attester firmware in response to the first measurement value being recorded, and the host including processing circuitry configured to receive the first measurement value and the second measurement value, and determine whether to falsify the bootloader or the attester firmware based on at least one of (1) the first measurement value and first reference values or (2) the second measurement value and second reference values.

Memory device, operation method of memory device, and authentication system of memory device

A storage device according to an embodiment includes a memory device configured to apply a first program voltage and a first verification voltage to a first word line and output, based on a program state of each of a plurality of memory cells connected to the first word line, a speed information representing a speed characteristic of each of the plurality of memory cells; and a memory controller configured to determine at least one memory cell to be programmed into a predetermined program state; determine, among the at least one memory cell, at least one target memory cell having a first speed characteristic based on the speed information; and perform a state-shaping operation to convert a data corresponding to the predetermined program state for the at least one target memory cell into a value corresponding to a program state different from the predetermined program state.

Storage device for performing a state shaping operation on data based on a speed characteristic of a memory cell and operation method thereof

An operation method for controlling a nonvolatile memory device includes initiating a first instance of a respective reliability operation for a respective memory block included in the nonvolatile memory device. The respective reliability operation includes detecting a degradation level of the respective memory block and setting a respective skip reference value based on the detected degradation level. The operation method also includes determining whether a respective number of consecutively skipped instances of the respective reliability operation is less than the respective skip reference value. The operation method further includes selectively skipping or performing a next instance of the respective reliability operation based on the determination result.

Operation method of storage controller for nonvolatile memory device

A display apparatus is provided. The display apparatus includes: a housing including a base; a motor coupled to the housing; a plurality of rotating plates arranged at one side of the base in one direction and connected to the motor at a center of the base, the plurality of rotating plates configured to be rotated by the motor and the plurality of rotating plates including a first rotating plate and a second rotating plate; and a plurality of substrates, each of the plurality of substrates including an inorganic light emitting device such that the plurality of substrates are configured to display an image at the one side of the base in the one direction, the plurality of substrates including: a first substrate coupled to the first rotating plate, and a second substrate coupled to the second rotating plate.

Display apparatus

An apparatus may include a device including a first controller, and a second controller, wherein the device may be configured to receive, using the first controller, data, apply, to the data, a first protection scheme, and send, from the device, using the second controller, the data having a second protection scheme. The first protection scheme and the second protection scheme may be the same. The second controller may be configured to apply, to the data, the second protection scheme. The first protection scheme may include a first salt, and the second protection scheme may include a second salt. The first salt may be determined by the device, and the second salt may be determined by a user. The method may further include applying, at the device, to controller state information for the first controller, a third protection scheme to generate controller state information having the third protection scheme.

Systems, methods, and apparatus for protection for device data transfers

Provided is an electronic apparatus comprising a microphone, a communication interface, a memory, and at least one processor to control the electronic apparatus. The processor may execute at least one instruction stored in the memory to: based on a preset user voice of a user being received through the microphone, control the communication interface to request at least one first sound information from at least one home appliance, each of the at least one first sound information corresponding to the preset user voice received at each of the at least one home appliance, receive, through the communication interface, the at least one first sound information from the at least one home appliance, and identify a position of the user based on the preset user voice and the at least one first sound information.

Electronic apparatus for identifying position of user and control method thereof

A storage device includes a non-volatile memory device configured to store fast cell information obtained from a threshold voltage distribution formed through a one-shot program for memory cells; and a storage controller configured to read the fast cell information from the non-volatile memory device during booting or initialization to perform mapping a fast cell area based on a fast cell management policy, wherein the fast cell information is acquired through the one-shot program performed in a test stage or a mass production evaluation stage, and is stored in the non-volatile memory device before a firmware of the storage controller is executed.

Storage device having fast cell information and operation method thereof

A storage system includes: a host configured to receive a software image and a first signature for the software image, the first signature being generated based on a first secret key, and generate, based on a second secret key, a second signature for the software image; and a storage device configured to receive, from the host, the software image, the first signature, the second signature, and a second public key related to the second secret key and execute the software image, based on a first verification and a second verification the first verification being performed on the first signature on the basis of a first public key related to the first secret key, and the second verification being performed on the second signature on the basis of the second public key.

Storage controller, storage system, and method of operating storage device

Disclosed is a storage device which includes a nonvolatile memory device that stores booting data and user data, and a memory controller that includes a first core, a second core, and third cores. In an initialization operation, the first core performs first authentication on at least a first part of the booting data. In response to that the first authentication succeeds, the first core generates a device identifier, and the second core loads the first part of the booting data and performs first booting. The first core performs second authentication on at least a second part of the booting data. In response to that the second authentication succeeds, the first core generates a first certificate and a second certificate, and the second core loads the second part of the booting data and performs second booting.

Storage device and operating method of storage device

A booting system includes a firmware release server, an electronic device configured to execute a boot loader and first firmware distributed from the firmware release server, the electronic device including at least one processor, a first storage unit configured to store a secret value shared with the firmware release server, a read-only memory (ROM) configured to store a ROM code executable in booting, a second storage unit configured to store the boot loader and the first firmware, where the ROM code, when executed, causes the at least one processor to perform a verification operation on the boot loader based on the secret value and a first endorsement image received from the firmware release server, and where the boot loader is configured to perform a verification operation on the first firmware based on a second endorsement image received from the firmware release server.

Secure booting system and operation method thereof

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.

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

A storage device includes a memory device storing data, and a controller controlling the memory device. The controller obtains and stores a certificate including a public key of an administrator from a host device, provides a nonce to the host device in response to a request from the host device, receives a token request signature including the nonce, a user identifier (ID), an allowed command list and a lifetime from the host device, and when it is verified that the token request signature is generated by a legitimate administrator by decrypting the token request signature with the public key, generates a token for allowing a user corresponding to the user ID to execute a command included in the allowed command list during the lifetime, and a token secret key corresponding to the token, and provides the token and the token secret key to the host device.

Storage controller and method of operating electronic system

A storage device includes a memory device including user memory blocks providing a user data region; and a controller configured to: map logical addresses used in a host to a portion of the user data region, and use a remaining portion of the user data region as an over-provisioning region, wherein the controller is further configured to control the memory device to: erase the user memory blocks based on a sanitize command from the host, provide, to the host, block address information of the user memory blocks based on a block address request from the host, access the user memory blocks based on block state check requests from the host, and provide, to the host, state information indicating whether the user memory blocks are erased according to access results.

Storage device and operation method of electronic system

A method of writing data to a protected region in response to a request from a host includes receiving a first write request including a first host message authentication code and a first random number from the host, verifying the first write request based on a write count, the first random number, and the first host message authentication code, updating the write count based on a result of verifying the first write request, generating a first device message authentication code based on the updated write count and the first random number, and providing the host with a first response including the first device message authentication code and a result of the verifying of the first write request.

Universal flash storage (UFS) device and method of writing data to a replay protected memory block (RPMB) region of a UFS

Growing community of inventors

Seongnam-si, South Korea

Jisoo Kim