Samsung Electronics Co., Ltd.

Jinsu Jo

Youna Lee

Sungjin Park

Dasom Lee

Seongmin Je

Taejun Kim

Wooseok Jang

Seungmin Ha

Moonsung Na

Sunghyuk Lee

Dohyun Jo

Jongkeun Choi

Gyuhyun Shin

Euiheon Jeong

Woongah Yoon

Byeongyun Oh

Doyeong An

Kyungmin Chune

Sungwook Won

An electronic device constituting a first block node included in a blockchain network of the disclosure is provided. The electronic device performs, in response to an input of requesting a transaction, obtaining first input data, output data, and a first identification value indicating a unique value capable of identifying a first smart contract, validating a blockchain application, forwarding a public key for a private key and an input data request to the second block node, based on the validation result, receiving, from the second block node, second input data encrypted with the public key and a second identification value indicating a unique value capable of identifying a second smart contract, and transmitting transaction data including the first input data and the output data to the server node, based on the comparison result of the first identification value and the second identification value.

Electronic device for providing transaction in blockchain network and operating method thereof

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 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

Jinsu Jo