ELECTRONIC DEVICE AND METHOD FOR PROVIDING DIGITAL SIGNATURE SERVICE OF BLOCK CHAIN USING THE SAME

    公开(公告)号:US20200265418A1

    公开(公告)日:2020-08-20

    申请号:US16794557

    申请日:2020-02-19

    Abstract: An electronic device may include: a communication circuit configured to communicate with an external electronic device, a display, a memory, and at least one processor electrically connected to the communication circuit, the display, and the memory, wherein the at least one processor is configured to operate a normal OS and a secure OS, and the memory stores instructions which, when executed, cause the at least one processor to control the electronic device to: receive a signature request message corresponding to a block chain through the communication circuit in the normal OS, drive block chain management software in response to receiving the signature request message, transfer the signature request message to the secure OS through the block chain management software, configure a user authentication request screen based on a trusted application being driven in the secure OS to output the user authentication request screen to the display, create a digital signature on the signature request message in the secure OS reflecting a private key stored in the memory in response to receiving a user authentication input for the digital signature, and transfer the digitally signed message to an application related to a block chain network in the normal OS through the block chain management software.

    ELECTRONIC DEVICE FOR PROVIDING TRANSACTION IN BLOCKCHAIN NETWORK AND OPERATING METHOD THEREOF

    公开(公告)号:US20230252461A1

    公开(公告)日:2023-08-10

    申请号:US18300098

    申请日:2023-04-13

    CPC classification number: G06Q20/3825 G06Q20/3829 G06Q20/02

    Abstract: 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 HAVING PARTIAL LEDGER IN BLOCKCHAIN NETWORK AND OPERATION METHOD THEREOF

    公开(公告)号:US20230261888A1

    公开(公告)日:2023-08-17

    申请号:US18301633

    申请日:2023-04-17

    CPC classification number: H04L9/50

    Abstract: An electronic device constituting a blockchain node included in a blockchain network is provided. The electronic device includes a communication circuit configured to at least one of transmit a signal to or receive another signal from one or more external devices, a memory configured to store a partial ledger including a part of an entire ledger for the blockchain network, the partial ledger including at least one block corresponding to respective at least one transaction in which the electronic device has participated in a consensus, and at least one processor electrically connected to the communication circuit and the memory, wherein the at least one processor is configured to execute a transaction related to the electronic device, according to the execution of the transaction, generate a block which includes block data for the transaction, and a hash field including previous block information in the entire ledger and previous block information in the partial ledger, and to store the block in the memory in association with the partial ledger.

    ELECTRONIC DEVICE FOR PROVIDING TRANSACTION INFORMATION AND OPERATING METHOD THEREOF

    公开(公告)号:US20210271508A1

    公开(公告)日:2021-09-02

    申请号:US17189722

    申请日:2021-03-02

    Abstract: An electronic device is provided. The electronic device includes a display, a memory storing instructions, and a processor operatively connected to the display and the memory, and the processor may be configured to execute the instructions so as to further cause the electronic device to if data provided in a predetermined format is recorded in a memory, identify validity of a first block chain address indicated by the data, if the validity of the first block chain address is identified, identify at least one second block chain address capable of performing a transaction with the first block chain address among at least one block chain address of a user of the electronic device, and display, on the display, a user interface including the first block chain address and the at least one second block chain address.

    ELECTRONIC DEVICE AND METHOD FOR SHARING DATA USING BLOCKCHAIN NETWORK

    公开(公告)号:US20230261886A1

    公开(公告)日:2023-08-17

    申请号:US18138529

    申请日:2023-04-24

    CPC classification number: H04L9/50 H04L9/30 H04L9/3247

    Abstract: An electronic device in an example embodiment includes: a communication circuit configured to transmit and/or receive a signal; a memory configured to store instructions; and at least one processor operatively connected with the communication circuit and the memory. The at least one processor generates a public key regarding a user of the electronic device and a blockchain address; determines an external electronic device to share data; transmits, to the external electronic device through the communication circuit, an invitation message including information regarding the public key and the blockchain address; based on a response message, received from the external electronic device in response to the invitation message, generates a blockchain network including the external electronic device as a node; and stores information regarding the blockchain network in an external server. Various other embodiments that can be understood through the specification are possible.

    ELECTRONIC DEVICE FOR MANAGING RIGHT BY USING DECENTRALIZED NETWORK, AND OPERATION METHOD THEREOF

    公开(公告)号:US20230231701A1

    公开(公告)日:2023-07-20

    申请号:US18185885

    申请日:2023-03-17

    CPC classification number: H04L9/0825 H04L9/3247 H04L2209/603

    Abstract: An electronic device is provided. The electronic device includes a communication module, a memory for storing instructions, and a processor, wherein the processor is configured to execute the instructions such that the electronic device identifies owner information of first content in response to a content ownership transfer request, transmits, to a blockchain network, transaction data for transferring the ownership of the first content, on the basis of the owner information of the first content, and transmits the first content to an external electronic device, wherein the transaction data may be regarding a transaction of transferring the ownership of a token related to the first content.

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