Abstract: An electrically conductive contact pin which prevents a fatigue fracture in a void part by distributing stress concentration in the void part is provided. The electrically conductive contact pin includes: a first surface; a second surface facing the first surface; a lateral surface for connecting the first surface and the second surface; and a void part formed inside the electrically conductive contact pin by passing through the first surface and the second surface along the length direction of the electrically conductive contact pin. The void part includes: a center void part; and an end void part communicating with the center void part and extending toward an end side of the electrically conductive contact pin, wherein the width of the end void part is narrower than the width of the center void part.

Abstract: Disclosed herein are an apparatus and method for mutual authentication of quantum entities based on Measurement-Device-Independent Quantum Key Distribution (MDI-QKD). The method may include configuring a quantum input form based on an authentication key shared in advance with a counterpart entity, applying polarization modulation to the configured quantum input form, transmitting the quantum input form to which polarization modulation is applied to a quantum measurement device, and authenticating the counterpart entity by checking whether the counterpart entity configures a quantum input form according to the shared authentication key using a measurement result and information about polarization modulation.

Abstract: A device and method for quantum key distribution (QKD). The QKD center includes an authentication key sharing unit for sharing authentication keys with QKD client devices; a quantum key generation unit for generating a sifted key for each of the QKD client devices using a quantum state; an error correction unit for generating output bit strings by correcting errors of the sifted keys; and a bit string operation unit for calculating an encryption bit string by performing a cryptographic operation on the authentication keys, the distribution output bit strings and output bit strings received from the QKD client devices. The present invention improves security by preventing the QKD center from being aware of keys shared among users.

Abstract: An embedded antenna includes a power transfer pad connected to a circuit inside a portable terminal having a metal exterior, and a first radiation unit which is connected to the power transfer pad so as to radiate a signal of a first passband, and a second radiation unit which is connected to the metal exterior so as to radiate a signal of a second passband.

Abstract: A device and method for quantum key distribution (QKD). The QKD center includes an authentication key sharing unit for sharing authentication keys with QKD client devices; a quantum key generation unit for generating a sifted key for each of the QKD client devices using a quantum slate; an error correction unit for generating output bit strings by correcting errors of the sifted keys; and a bit string operation unit for calculating an encryption bit string by performing a cryptographic operation on the authentication keys, the distribution output bit strings and output bit strings received from the QKD client devices. The present invention improves security by preventing the QKD center from being aware of keys shared among users.

Abstract: An embedded antenna includes a power transfer pad connected to a circuit inside a portable terminal having a metal exterior, and a first radiation unit which is connected to the power transfer pad so as to radiate a signal of a first passband, and a second radiation unit which is connected to the metal exterior so as to radiate a signal of a second passband.

Abstract: Provided is a web-based software debugging apparatus and method for remote debugging. The web-based software debugging apparatus may include: a web interface to provide a web browser that enables a user to make a request for a debugging service for software performed in a remote target system, and to verify a debugging result of the software; a debugger client to receive the debugging service request for the software via the web interface, and to provide the debugging result to the web interface; and a debugger server to receive the debugging service request from the debugger client, and to transmit the debugging result to the debugger client after debugging the software through a connection to the target system according to the debugging service request.

Abstract: Provided is a web-based software debugging apparatus and method for remote debugging. The web-based software debugging apparatus may include: a web interface to provide a web browser that enables a user to make a request for a debugging service for software performed in a remote target system, and to verify a debugging result of the software; a debugger client to receive the debugging service request for the software via the web interface, and to provide the debugging result to the web interface; and a debugger server to receive the debugging service request from the debugger client, and to transmit the debugging result to the debugger client after debugging the software through a connection to the target system according to the debugging service request.