Abstract: Disclosed herein is a method for user-centered visitor access management, which may include issuing, by a management office server, a digital certificate to a householder terminal; registering, by a wall-pad, a householder in response to a request to register the householder based on the digital certificate; requesting, by the householder terminal, the management office server to register a visitor based on a visit request from a visitor terminal and delegating the digital certificate to the visitor terminal; making an entry request to a management terminal based on the digital certificate; verifying, by the wall-pad, the digital certificate based on a request for verification for entry from a wall-pad management terminal and providing a verification result to the wall-pad management terminal when the management terminal is the wall-pad management terminal; and managing and controlling, by the wall-pad, permission to use home devices based on delegated permission information of the digital certificate.

Abstract: Disclosed herein is an apparatus and method for password-based distributed authentication. The apparatus includes memory in which at least one program is recorded and a processor for executing the program. The program may perform at least one of registering a password input by a user in a service membership sign-up procedure in multiple servers in a distributed manner based on multi-party computation, authenticating a password input by the user in a login procedure based on multi-party computation with the multiple servers, or acquiring resources of a service requested by the authenticated user, or a combination thereof.

Abstract: Disclosed herein are an apparatus and method for issuing delegated credentials between digital wallets possessed by multiple users connected to a Decentralized Identifier (DID) registry through wired/wireless communication. The method includes receiving, by a digital wallet of a first user, a delegated credential issuance request message including a newly created DID document from a digital wallet of a second user, generating, by the digital wallet of the first user, a delegated credential using both the delegated credential issuance request message, received from the digital wallet of the second user, and an original credential, previously issued by the digital wallet of the first user, and transmitting, by the digital wallet of the first user, the generated delegated credential and the original credential, together with a delegated credential registration request message, to the digital wallet of the second user.

Abstract: Disclosed herein is an apparatus and method for providing a multi-party computation service. The apparatus prepares a preconfiguration in response to a request from a user device to execute a multi-party computation service, requests multi-party computation player servers participating in the multi-party computation service to perform a preconfiguration based on multi-party computation runtime environment data, executes multi-party computation with the multi-party computation player servers depending on the preconfiguration, and replies to the user device with a result of execution of the multi-party computation service based on a result of executing the multi-party computation.

Abstract: The present invention relates to a cooling module including a first radiator, and a second radiator stacked and disposed at an upstream side of the first radiator based on a flow direction of cooling air, in which the first radiator includes a main inlet port connected to an engine so that a coolant is introduced through the main inlet port, a main discharge port through which the coolant is discharged, an auxiliary discharge port connected to a third radiator, which is installed at a position that does not overlap the first radiator and the second radiator in the flow direction of the cooling air, so that the coolant is discharged through the auxiliary discharge port, and an auxiliary inlet port through which the coolant is introduced, such that the first radiator may be easily connected to the third radiator, which may improve cooling performance.

Abstract: Disclosed herein is an apparatus and method for biometric authentication based on an eye image The apparatus receives the eye image to be authenticated that captures a region around an eye of a subject, generates segmentation data and eye state information from the eye image to be authenticated, selects a registered eye image based on similarity acquired by comparing the segmentation data and eye state information of the eye image to be authenticated with those of previously registered eye images, and authenticates the subject based on the similarity.

Abstract: The present invention comprises a method, process, and composition that enhances the performance of paper straws through the use of zein treatments which significantly enhance the wet strength of paper straws. Selection of the paper substrate found that Hanji paper displays remarkable durability, reinforcing performance of the straws even when exposed to water and high salinity. Furthermore, the present invention exhibits substantial effectiveness in curbing starch migration from the paper straws, creating a protective barrier against starch-based glues that might otherwise compromise beverage flavor and pose gluten-related concerns. Additionally, the present invention outlines a method for crafting spirally-wound straws using a biodegradable paper strip impregnated with the zein treatment. The straws of the present invention offer an adhesive-free, sustainable, and environmentally-friendly solution for making durable straws.

Abstract: The present invention relates to an activated composition comprising a spherical activated carbon particle of a sphericity greater than 0.6 and at least one of a plurality of possible active agents. The composition effectively sequesters the malodors, which includes complex fishy smell containing no amines, sulfur-containing malodors, and volatile organic compounds such as formaldehyde, volatile aldehydes, and ethylene. The activated composition of the present invention may be useful in consumer, personal care, home care, and healthcare-related products and industrial applications.

Abstract: Disclosed herein is a method for user-centered visitor access management, which may include issuing, by a management office server, a digital certificate to a householder terminal; registering, by a wall-pad, a householder in response to a request to register the householder based on the digital certificate; requesting, by the householder terminal, the management office server to register a visitor based on a visit request from a visitor terminal and delegating the digital certificate to the visitor terminal; making an entry request to a management terminal based on the digital certificate; verifying, by the wall-pad, the digital certificate based on a request for verification for entry from a wall-pad management terminal and providing a verification result to the wall-pad management terminal when the management terminal is the wall-pad management terminal; and managing and controlling, by the wall-pad, permission to use home devices based on delegated permission information of the digital certificate.

Abstract: Disclosed herein are a method and apparatus for converting a credential data schema.

Abstract: Disclosed herein are an apparatus and method for providing an anonymous delegated credential in a DID-based service. A method for issuing an anonymous delegated credential in a DID-based service includes receiving an anonymous delegated credential issuance request message from a digital wallet of a delegate, setting attribute values in the anonymous delegated credential, anonymizing delegator identification information and delegatee identification information among the attribute values, and issuing the generated anonymous delegated credential to the digital wallet of the delegatee.

Abstract: Disclosed herein are an apparatus and method for user authentication based on multiple pieces of biometric information. The apparatus may include one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program receives multiple pieces of biometric information from the client device of a user, generates the personal identifier of the user using a neural network and a Bloom filter algorithm, and checks the similarity between the personal identifier of the user and each of personal identifiers previously registered in a database, thereby authenticating the user.

Abstract: Disclosed herein are an apparatus and method for managing personal information.

Abstract: Disclosed herein are an apparatus and method for recommending privacy control. A privacy control server includes multiple common privacy control recommendation models learned based on personal information provision histories of multiple users, a user preference determination unit for generating at least one question item based on the multiple common privacy control recommendation models and determining a privacy control preference of a user based on a result of a user answer to the at least one question item, and a common privacy control recommendation model provision unit for providing a common privacy control recommendation model selected to match the privacy control preference of the user to the user.

Abstract: The present disclosure relates to a curing agent, an adhesive composition for a semiconductor device containing the curing agent, the adhesive composition exhibiting excellent adhesive strength and having excellent reliability because of being inhibited from cracking, an adhesive film for a semiconductor device, and a semiconductor package including the same.

Abstract: Disclosed are a device and method for managing credentials. In a multi-decentralized identity management service environment, a user can safely manage credentials that have been once issued, and can use the credentials in various user terminals without being redundantly issued credentials.

Abstract: Provided is a cooling module for a motor vehicle, which modulates heat exchangers installed in front of an engine room of a motor vehicle, and more particularly, a cooling module for a motor vehicle, which is more easily assembled and has improved assembly precision by including a plate housing casing a plurality of radiators and preventing a core portion of the radiator from being damaged during assembling the radiators to each other.

Abstract: Disclosed herein are an apparatus and method for issuing delegated credentials between digital wallets possessed by multiple users connected to a Decentralized Identifier (DID) registry through wired/wireless communication. The method includes receiving, by a digital wallet of a first user, a delegated credential issuance request message including a newly created DID document from a digital wallet of a second user, generating, by the digital wallet of the first user, a delegated credential using both the delegated credential issuance request message, received from the digital wallet of the second user, and an original credential, previously issued by the digital wallet of the first user, and transmitting, by the digital wallet of the first user, the generated delegated credential and the original credential, together with a delegated credential registration request message, to the digital wallet of the second user.

Abstract: A superabsorbent polymer composition includes superabsorbent polymer particles, a chelating agent and a mixture of an organic acid and a silicate-based salt. The superabsorbent polymer particles include crosslinked polymer of water-soluble ethylenically unsaturated monomers including acid groups, of which at least a part are neutralized, and the chelating agent includes EDTA or an alkali metal salt thereof, exhibiting improved antimicrobial and deodorizing properties without deterioration of the superabsorbent polymer properties such as centrifugal retention capacity.