Abstract: A method for serving cloud of quantum computing according to an embodiment may include receiving a request to perform quantum computing from a client and providing a standard resource description to the client, receiving, from the client, resource-related information corresponding to the standard resource description, providing a standard application program interface (API) to the client, and receiving, from the client, standard quantum computing code created through the standard API, selecting quantum computing hardware, which is to execute the standard quantum computing code, among a plurality of quantum computing hardware, based on one or more among the resource-related information and the standard quantum computing code, converting the standard quantum computing code into quantum computing code executable on the selected quantum computing hardware, and executing the converted quantum computing code using the selected quantum computing hardware.

Abstract: A confidence measurement method according to an embodiment includes additionally training a feature extractor of a classification model trained using training data including a plurality of images, using the training data, such that feature vectors for images labeled with the same class among feature vectors for the plurality of images become closer to each other in an embedding space for the feature extractor, and measuring confidence of a classification result for an input image by the trained classification model using the additionally trained feature extractor.

Abstract: An edge computing device controlling method includes executing some function modules of a plurality of function modules for processing a service request from a user device on a first edge computing device of a plurality of edge computing devices and additionally executing the some function modules on a second edge computing device of the plurality of edge computing devices when additional resource is required for the some function modules.

Abstract: A file transmission method includes storing each chunk of a target file by public cloud, receiving, by the first node, a file transmission request including an encrypted chunk order sheet of the target file, information on the target file and recipient information, wherein the chunk order sheet includes connection order information of each chunk necessary for restoring the target file, and the encrypted chunk order sheet is encrypted with a public key of a recipient, storing a first transaction including information included in the file transmission request and chunk storage location information in a ledger stored in the first node, storing, by the second node, the first transaction in a ledger of the second node according to synchronization of the ledger, storing a chunk in the internal storage using the chunk storage location information when the recipient information included in the first transaction includes a user belonging to the intranet.

Abstract: An apparatus and method for performing an operation which are secure against side-channel attack are provided. According to one embodiment of the present disclosure, the apparatus includes a first outputter configured to output a first output value corresponding to a seed value using a first parameter candidate value set, a second outputter configured to output a second output value using a second parameter candidate value set wherein the second output value corresponds to the seed value and is capable of being generated using the first output value, a third outputter configured to output a third output value using the seed value and the first output value, and a fourth outputter configured to output a fourth output value using the second output value and the third output value, wherein the fourth output value is capable of being generated using the seed value.

Abstract: A method of provisioning key information and a device using the method are provided. The method of provisioning key information according to one embodiment of the present disclosure includes generating key information for encryption and decryption from seed information using a key information generation algorithm and deleting code that corresponds to the key information generation algorithm from the device based on the generation of the key information.

Abstract: Provided is a blockchain management apparatus comprising at least one hardware processor configured to implement a block generation order control unit which prevents a block generation node of a plurality of blockchain nodes from generating a new block of a blockchain in response to a determining, by the blockchain management apparatus, that the new block is a block generated by the block generation node within a unit section, wherein the unit section corresponds to a preset number of blocks measured from a current block corresponding to a current block height of the blockchain, and the blockchain management apparatus manages a permission-based blockchain network including the plurality of blockchain nodes.

Abstract: Provided is a method of providing an unmanned dialogue service according to an embodiment of the inventive concept. The method includes transmitting or receiving text message data constituting a dialogue to or from a user terminal in an unmanned dialogue model, analyzing the dialogue to determine whether a counselor switching situation has occurred, transmitting a dialogue handover request including information regarding the dialogue to a counselor management apparatus when it is determined that the counselor switching situation has occurred, and automatically switching into a mode for relaying transmission or reception of messages between the user terminal and a counselor terminal that receives a task for processing the dialogue handover request allocated by the counselor management apparatus.

Abstract: Provided is a block generation method in blockchain-based system. The block generation method comprises calculating, by a first blockchain node among the plurality of blockchain nodes, a first node score, propagating, by the first blockchain node, the first node score to the plurality of blockchain nodes, receiving, by the first blockchain node, a delegation of a block generation authority from a second blockchain node among the plurality of blockchain nodes, the second blockchain node having received the first node score and initiating, by the first blockchain node, generation of a new block based on a determination that a block generation node condition, that is based on the block generation authority, has been satisfied.

Abstract: Provided are a method of processing payment based on a blockchain, which is performed by a payment service providing server.

Abstract: A system and method for communication between devices are provided. According to the embodiments of the present disclosure, it is possible to easily authenticate a counterpart device using a one-time key HN(T) for a D2D communication between a first device and a second device, without using a separate secure channel (e.g., secure sockets layer (SSL), transport layer security (TLS), or the like) in an environment where it is difficult to synchronize the first device with the second device without intervention of a server.

Abstract: A method of moving an input focus in a plurality of input fields according to an embodiment of the present invention includes. displaying an input focus positioned in a first input field included in the plurality of input fields on a screen, receiving an input of a first touch gesture in a touch gesture input area on the screen, and moving the input focus to a second input field in response to the input of the first touch gesture.

Abstract: Method and apparatus for executing function on a plurality of items on list are provided, one of methods comprises, receiving a touch gesture in a first direction on a first item on a list, determining the first item to be an execution target of a preset function in response to the touch gesture in the first direction, receiving a touch gesture in a second direction on a second item, adding the second item as an execution target of the preset function in response to the touch gesture in the second direction, receiving a touch gesture in the first direction, which is successive to the touch gesture in the second direction, on the added second item and executing the preset function on the first item and the second item in response to the touch gesture in the first direction on the added second item.

Abstract: An authentication system and method are provided. According to the embodiments of the present disclosure, it is possible to provide a secure authentication service capable of maintaining personal privacy by enabling authentication while preventing personal information used for personal authentication, such as biometric information, from being exposed in the authentication process.

Abstract: A method for interworking data between a plurality of blockchain networks according to an embodiment of the inventive concept includes performing a first phase of a transaction by dividing steps of the transaction for recording data and performing a second phase of the transaction according to a result of performing the first phase, wherein performing the first phase comprises performing a first step of a first transaction for recording the data in a first blockchain network of a plurality of blockchain networks and requesting to perform a first step of a second transaction for recording the data in a second blockchain network of the plurality of blockchain networks. It may be available to interwork data between a plurality of blockchain networks without passing through a separate hub network, and ensure the concurrency of interworked data recording.

Abstract: A risk analysis apparatus and method are provided. According to one embodiment of the present disclosure, the risk analysis apparatus includes: at least one processor configured to: a risk factor collector configured to collect risk factors related to one or more authentication processes for authentication of a user of a client device in an authentication system; a risk analyzer configured to calculate a current risk score for the user based on the collected risk factors and calculate a total risk score based on a risk score history of the user and the current risk score based on the one or more authentication processes being successful; and an additional authentication requester configured to determine whether additional authentication of the user is required based on the current risk score and the total risk score and, request the client device for the additional authentication of the user based on the additional authentication being required.

Abstract: An apparatus and method for performing operation being secure against side channel attack are provided. The apparatus and method generate values equal to values obtained through an exponentiation operation or a scalar multiplication operation of a point using values extracted from previously generated parameter candidate value sets and an operation secure against side-channel attack, thereby improving security against side-channel attack without degrading performance.

Abstract: A digital identity management method based on a blockchain-based technology is provided. In some exemplary embodiments, the method comprises: performing a first process for storing identity identification information of a subscription request in a first block of a blockchain in response to the subscription request from a service request device and then obtaining a block hash value of the first block as a result of performing the first process, performing a second process for storing the block hash value of the first block and data of authentication information of the subscription request in a second block of the blockchain and then obtaining a block hash value of the second block as a result of performing the second process, and inserting the block hash value of the second block into a digital identity data structure as a result of processing the subscription request.

Abstract: A method of training a model for object classification and detection includes training a first classification model including a shared feature extractor shared by classification models and a first classifier for outputting a result of an object in a first input image based on feature values of the first input image, training a second classification model including the shared feature extractor and a second classifier for outputting a result about authenticity of a second input image based on feature values of the second input image, and training a third classification model including the shared feature extractor and a third classifier for outputting a classification result about a rotation angle of a third input image on the basis of feature values of the third input image extracted by the shared feature extractor, using a third training image set including images rotated at one or more angles.

Abstract: A method, performed by a dialogue processing device, of processing dialogue associated with a user based on dialog act information, the method comprises receiving speech information, corresponding to speech of the user, including a plurality of sentence units; identifying a first sentence unit and a second sentence unit, of the plurality of sentence units, based on receiving the speech information; extracting a first dialog act indicative of an intention of the first sentence unit and extracting a second dialog act indicative of an intention of the second sentence unit; extracting a first dialog act indicative of an intention of the first sentence unit and extracting a second dialog act indicative of an intention of the second sentence unit; processing the first sentence unit and the second unit in a sequence according to respective priority orders assigned based on a number of empty slots of dialogue frames of the sentence units.