Abstract: According to an embodiment of the present disclosure, a ring-learning with rounding (LWR)-based quantum-resistant signature method includes: a key generation step of receiving a security parameter, and outputting a signature key and a verification key, via an operation on a ring defined by a cyclotomic equation including three terms; a signature value output step of outputting a signature value based on the output signature key; and a signature verification step of calculating an operation value based on the output verification key and signature value, and verifying a signature based on a result of comparing the output signature value with the calculated operation value.

Abstract: Provided is an electronic device, including a database and a processor, and the processor is configured to receive a user ID, at least one anonymous user ID corresponding to the user ID and location information of a user terminal from the user terminal, receive an unmanned aerial vehicle (UAV) ID, at least one anonymous UAV ID corresponding to the UAV ID and location information of an UAV from the UAV, and in response to receiving key exchange request information from the user terminal or the UAV, provide a key exchange protocol between the user terminal and the UAV based on the location information of the user terminal and the location information of the UAV.

Abstract: According to an embodiment of the present disclosure, a ring-learning with rounding (LWR)-based quantum-resistant signature method includes: a key generation step of receiving a security parameter, and outputting a signature key and a verification key, via an operation on a ring defined by a cyclotomic equation including three terms; a signature value output step of outputting a signature value based on the output signature key; and a signature verification step of calculating an operation value based on the output verification key and signature value, and verifying a signature based on a result of comparing the output signature value with the calculated operation value.

Abstract: A method for modeling an information transmission network having a hierarchical structure, and an apparatus thereof. The apparatus is adapted to model an information transmission network having a hierarchical structure in which information transmission is conducted between pairs of nodes to which pre-defined relationships are assigned, the apparatus including: a connectivity map generating unit for generating connection relationship information for each node, on a basis of traffic information including data transmission direction information for nodes contained in the information transmission network and a connectivity map for the nodes on a basis of the connection relationship information for each node: and a traffic map generating unit for generating a traffic information map accounting for traffic intensities between pairs of the nodes by applying inter-node traffic information to the connectivity map.

Abstract: A method for modeling an information transmission network having a hierarchical structure, and an apparatus thereof. The apparatus is adapted to model an information transmission network having a hierarchical structure in which information transmission is conducted between pairs of nodes to which pre-defined relationships are assigned, the apparatus including: a connectivity map generating unit for generating connection relationship information for each node, on a basis of traffic information including data transmission direction information for nodes contained in the information transmission network and a connectivity map for the nodes on a basis of the connection relationship information for each node: and a traffic map generating unit for generating a traffic information map accounting for traffic intensities between pairs of the nodes by applying inter-node traffic information to the connectivity map.