Samsung Electronics Co., Ltd.

Youna Lee

Seongmin Je

Sungjin Park

Dohyun Jo

Wooseok Jang

Moonsung Na

Jinsu Jo

Euiheon Jeong

Dasom Lee

Taejun Kim

Seungmin Ha

Sunghyuk Lee

Jongkeun Choi

Minkyung Shin

Beomsoo Cho

Sungwook Won

Kyungmin Chune

Doyeong An

An electronic device including a processor that generates first identification data including a unique value corresponding to an external device, transmits an authentication request including information on a blockchain application and the first identification data to the external device, receives, a random value generated from the external device if authentication is successful, transmits a signature request including the random value and information on a transaction to the external device, generates a first hash value for the transaction, receives a second hash value for the transaction, which is generated based on verification of the random value, and signature data obtained by performing digital signature to the transaction with a private key stored in the external device, and determines whether to transmit the transaction to the blockchain network, based on the first hash value and the second hash value.

Electronic device for transmitting transaction by using external device and operation method thereof

An electronic device is provided. The electronic device includes a communication device for transmitting or receiving a signal, a memory, and a processor connected to the communication device and the memory. The memory may store instructions for controlling the communication device so as to cause the processor to generate a key pair including a public key and a private key, receive authentication information from an authentication server by using the communication device, generate signature data by electronically signing the authentication information on the basis of the private key, generate transaction data including the signature data, transmit the transaction data to a blockchain network, and transmit transaction identification information corresponding to the transaction data to the authentication server.

Electronic authentication device and method using blockchain

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 is provided. The electronic device includes a display, and a processor configured to generate at least one hierarchy deterministic path, obtain at least one public key using a root seed and the at least one hierarchy deterministic path, obtain a blockchain address for a blockchain account from the at least one public key, obtain information about the blockchain address from a blockchain network based on the blockchain address, the information about the blockchain address including information about a balance of the blockchain account, and display at least part of the information about the blockchain address through the display, based on the information about the balance of the blockchain account.

Electronic device providing blockchain account information and method of operating the same

An electronic device is provided. The electronic device includes a communication circuit configured to communicate, at least one processor operatively connected to the communication circuit, and a memory operatively connected to the at least one processor, wherein the memory may store instructions, when executed, causing the at least one processor to request a management server to encrypt a push key received from a push server, using the communication circuit, in response to the request, receive the encrypted push key from the management server, generate at least one transaction based on the encrypted push key, and transmit the transaction to a blockchain network.

Electronic device and method for receiving push message stored in blockchain

An electronic device is provided. The electronic device includes a communication module, a memory storing instructions, and at least one processor operably connected to the communication module and the memory, wherein the at least one processor is, by executing the instructions, configured to receive a request for execution of an application programming interface (API) from an application while driving the application, identify a policy for the execution-requested API based on data received from a decentralized network through the communication module, and determine whether to execute the execution-requested API, based on the identified policy for the API.

Electronic device for controlling function execution using decentralized network and operation method thereof

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Suwon-si, South Korea

Youna Lee