Samsung Electronics Co., Ltd.

Moon-Sang Kwon

Kyung-im Jung

Yun-Sang Oh

Sang-sin Jung

Byung-Rae Lee

Bo-Gyeong Kang

Hee-sub Shin

Young-Joon Choi

Bum-Soo Kim

Ji-Soo Kim

Shin-Han Kim

Joong-Chul Yoon

Eun-chu Oh

Dong-Young Seo

Yeong-Jae Woo

Chang-Eun Choi

Sung-Joo Kim

Kyoung-Il Bang

Hyun-Joo Ahn

Sung-Won Jeong

Jae-Bum Lee

Sung-yong Seo

Han-shin Shin

Jae-jin Choi

Yoo-chan Kim

Young-Hoi Heo

Chan-kyu Kim

Kyung-Im Jung

A memory device includes an unmapped read control module and a page buffer. The unmapped read control module is configured to receive a read command from a host, determine whether the read command is an unmapped read command, and output a memset command when the read command is the unmapped read command. The page buffer is configured to generate unmapped data by performing a memset operation in response to the memset command. The memset operation does not include a read operation for a memory cell array.

Memory device and memory system performing an unmapped read

An operating method of a memory controller may include: enabling a security mode in response to a first command received from a host; generating a security key based on a host key received from the host; storing the security key in a security key storing unit; and/or performing a first data processing operation of encrypting data received from the host and decrypting data stored in a non-volatile memory device, based on the security key, when the security mode is enabled. The security key storing unit may be a volatile memory.

Memory controllers, operating methods thereof, and memory systems including the same

A memory device capable of performing an overwrite operation, a memory system, and a method of operating the memory system are provided. The method includes receiving one or more write requests, a logical address and data corresponding to the one or more write requests; comparing a result of analyzing at least one of the received one or more write requests, logical address, and data with a threshold value; and writing data using a first update method or a second update method, based on a result of the comparison. When the first update method is selected, the data are written in a region indicated by a physical address corresponding to the logical address according to address mapping information. When the second update method is selected, information of the physical address corresponding to the logical address is changed, and the data are written in a region indicated by the changed physical address.

Memory system, including memory device capable of overwrite operation, and method of operating the memory system

An apparatus and method for authenticating a Non-Volatile Memory (NVM) device are provided. A host device that authenticates the NVM device transmits challenge information for authentication to the NVM device, receives pieces of authentication information in response to the challenge information from the NVM device, and authenticates the NVM device using the pieces of authentication information by the host device. The pieces of authentication information are generated based on the challenge information and secret key information stored in the NVM device.

Method and apparatus for authenticating a non-volatile memory device

A method and apparatus for using a non-volatile storage device includes reading device identification information from the non-volatile storage device, application identification information corresponding to a content application related to a type of content to be protected or utilized among a plurality of content applications is acquired, usage identification information is generated using the device identification information and the application identification information, and protecting or utilizing content using the usage identification information.

Method and apparatus for using non-volatile storage device

A host device, a portable storage device, and a method of updating an RO stored in the portable storage device are provided. The method includes receiving a predetermined bitmap from a host device, performing a bitwise operation on the received bitmap and meta information indicating a state of the RO, and updating the meta information using a result of the bitwise operation.

Host device, portable storage device, and method for updating meta information regarding right objects stored in portable storage device

A system provided for authenticating a storage device includes a computer system, an intermediate converter and a storage device. The computer system stores an application program to execute functions of a storage device. The intermediate converter connects the computer system and the storage device. The storage device store multiple predetermined sector addresses and an order of the predetermined sector addresses. The computer system authenticates the storage device using the application program and sector data stored at the predetermined sector addresses. The predetermined sector addresses may be predetermined by both the storage device and the application program.

Method and system for authenticating storage device connected through intermediate converter

A method for extending a secure area in a portable storage device and the portable storage device therefore are provided. The method includes allocating a secure area for storing data to be received within an insecure area, sending position information regarding the secure area allocated within the insecure area to a host device, receiving the position information and data to be stored in the secure area from a secure application of the host device, and encrypting and storing the data in the insecure area based on the position information.

Method and portable storage device for allocating secure area in insecure area

A method for searching a portable storage device for a rights object by using an identifier of the rights object, including a host device accessing the portable storage device, retrieving the identifier of the stored rights object from the portable storage device, storing the retrieved object identifier, searching for the stored object identifier to perform an operation associated with the rights object stored in the portable storage device, and acquiring location data of the rights object as a result of the searching.

Method and apparatus for searching for rights objects stored in portable storage device object identifier

A method and apparatus for managing digital rights of a portable storage device are provided. The method comprises a device performing authentication together with the portable storage device and sharing an encryption key with the portable storage device as a result of the authentication, requesting a rights object list from the portable storage device, receiving the rights object list from the portable storage device, and processing and displaying the rights object list.

Method and apparatus for managing digital rights of portable storage device

Provided is a method of hiding a specified directory with no effect on compatibility with an existing file system. According to an aspect of the invention, an apparatus for managing a hidden area includes a hidden area generation unit which sets a portion of the data area as a hidden area and records meta data for the set hidden area, a hidden area release unit which moves a directory entry of a root directory of the hidden area into the directory entry area and returns a cluster recorded with the meta data to release the set hidden area, and an access control unit which controls an access to the hidden area when the hidden area is set.

Apparatus and method of managing hidden area

Provided are a method and apparatus for supporting a symbolic link at an application level while keeping the structure of an existing file system that does not support a symbolic link. The method includes receiving a symbolic link creation command including an absolute path and a symbolic link path from a user, creating a symbolic link file for the symbolic link path when the absolute path exists but the symbolic link path does not exit, and changing a value of a specified field of a directory entry of the created symbolic link file to a specified value representing the symbolic link.

Method of creating symbolic link capable of being compatible with file system, and method and apparatus for accessing file or directory by using symbolic link

A method and apparatus for securely updating and booting a code image is provided, where a code image is updated in a storage medium storing an operating system having a first region, on which a boot code is loaded, a second region, in which a first code image is stored, and a third region, in which the boot code and first check data for verifying the first code image are stored. Updating a code image includes storing a second code image in the second region, extracting information about a secure one-way function from the first check data, and generating second check data for verifying the second code image using the extracted information of the secure one-way function and storing the generated second check data in the third region. When the second check data is set as a parameter of the secure one-way function, the first check data is generated.

Method and apparatus for securely updating and booting code image

A method and an apparatus are provided for managing blocks according to the update type of data in block-type memory. The method includes receiving data to be stored from an application; determining an update frequency of the data; extracting information of nonvolatile memory space in which the data will be stored according to the update frequency of the data; and transmitting information about the data and the space to the nonvolatile memory so that the data is stored in the space using information of the extracted space.

Method and apparatus for managing blocks according to update type of data in block-type memory

A secure booting apparatus and method, in which integrity can be guaranteed when booting with an operating system (OS). The secure booting apparatus includes an OS storing unit, a memory unit, and a control unit. The OS storing unit includes a first region that stores an OS and a second region that stores a check value of an algorithm, the check value corresponding to the OS. The OS is loaded into the memory unit when booting. The control unit calculates a check value based on the loaded OS using the algorithm used to calculate the check value stored in the second region and compares the calculated check value and the check value stored in the second region to determine the integrity of the OS.

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Seoul, South Korea

Moon-Sang Kwon