Samsung Electronics Co., Ltd.

Sunghyuk Lee

Sooyeon Kim

Seongmin Je

Juyoung Kim

Jaehun Jung

Wooseok Jang

Jinki Jung

Youna Lee

Moonsung Na

Jinsu Jo

Jongkeun Choi

Euiheon Jeong

Sungwook Won

An electronic device is provided. The electronic device includes a memory, a communication circuit, a display, and a processor connected to the memory, the communication circuit, and the display, wherein the memory stores instructions which, when executed, cause the processor to acquire device information relating to a plurality of external electronic devices, on the basis of the device information, select a plurality of distribution storage devices for storing a distribution key from among the plurality of external electronic devices, generate a plurality of distribution keys obtained by dividing mnemonic information or a seed value for generating a key for electronically signing data to be transmitted to a blockchain network, and control the communication circuit such that the plurality of distribution keys are distributed and transmitted to the plurality of distribution storage devices.

Method for storing and recovering key for blockchain-based system, and device therefor

An electronic device that performs a digital signature for a blockchain address and first information associated with the blockchain address using a private key, associates and stores signature data obtained as a result of performing the digital signature with at least one of the blockchain address or the first information, performs authentication for the blockchain address and the first information using a public key corresponding to the private key, based on the stored signature data, and displays the blockchain address and the first information, based on the result of performing the authentication is provided.

Electronic device and method for managing blockchain address using the same

An electronic device according to an embodiment includes: a memory configured to store encryption information, a processor, and a switch configured to electrically disconnect the processor from the memory in a first state and to electrically connect the processor and the memory in a second state. The processor is configured to receive a user input for switching the switch from the first state to the second state, provide the encryption information stored in the memory to a secure application executing only in a second execution environment through a secure operating system of the second execution environment, when the switch is switched from the first state to the second state to generate an electrical path between the memory and the processor, acquire signature information for a transaction based on the encryption information, and provide the signature information acquired based on the encryption information to a signature request application.

Electronic device and method for protecting personal information using secure switch

Growing community of inventors

Gyeonggi-do, South Korea

Sunghyuk Lee