Samsung Electronics Co., Ltd.

Jinha Hwang

Junghwan Choi

Youngdon Choi

Seunghoon Lee

Wooyong Lee

Inho Kim

Youngchul Cho

Hojun Yoon

Dongsun Lee

Kyungsoo Kwag

Jungkyuen Lee

Kyungim Jung

Jongtak Lee

Moongyu Jung

An input/output circuit of a nonvolatile memory device and a nonvolatile memory device. The input/output circuit of a nonvolatile memory device includes a driver, which is configured to output data from the nonvolatile memory device to a data line, and a power gating circuit, which is connected between the driver and a power terminal or between the driver and a ground terminal and configured to block a leakage current of the driver. The power gating circuit includes a plurality of transistors electrically connected in parallel and having threshold voltages of different magnitudes, respectively.

Nonvolatile memory device including power gating circuit and input/output circuit of a nonvolatile memory device

An electronic device includes at least one memory, a camera, and at least one processor, wherein the at least one processor is configured to: obtain raw image for an external object from the camera in a secure environment and store the obtained raw image in the at least one memory, to obtain first image from the raw image through first image processing and second image processing on the stored raw image in the secure environment, based on obtaining of a verification request from a normal environment: to obtain, in the secure environment, second image obtained from the raw image through the second image processing for the stored raw image in the normal environment, to obtain third image from the second image through the first image processing for the obtained second image in the secure environment, and to identify integrity of the second image based on the obtained first image and the obtained third image.

Electronic device identifying integrity of image using plurality of execution environments and method of controlling the same

A device and a method for authenticating an application in an execution environment in a trust zone are provided. The method includes executing a client application (CA) in a normal world, receiving, in the normal world, a request for receiving a service of a trusted application (TA) of a secure world from the CA, acquiring, when the request is received in the normal world, source information of the CA loaded in a memory of the device, acquiring, in the normal world, first hash information from the source information, providing, to the secure world, the first hash information together with signature information and a sub certificate included in the CA, and authenticating the CA based on the sub certificate and a root certificate of the TA in the secure world.

Device and method for authenticating application in execution environment in trust zone

Growing community of inventors

Suwon-si, South Korea

Jinha Hwang