Abstract: Suggested is a cover for a portable terminal which is driven by receiving wireless power from a portable terminal and performs communication with an IoT device by using the portable terminal having no IoT communication module embedded therein by performing communication with the IoT device via IoT communication. The suggested cover for a portable terminal comprises: a first antenna module for generating driving power through energy harvesting with a portable terminal; and a second antenna module and a third antenna module driven by the driving power, wherein one of the first antenna module and the second antenna module collects IoT data from the portable terminal, and wherein the third antenna module transmits the IoT data, collected by one of the first antenna module and the second antenna module, to an external IoT device.

Abstract: Provided is an NFC antenna module which connects a side cover (i.e. metal frame), which is formed at one side of a portable terminal, to the antenna pattern so that the side cover is operated as an auxiliary radiator of an antenna pattern. The presented NFC antenna module comprises: a side cover made of a metal material and coupled to one side of the portable terminal; an antenna pattern having one end connected to a short-range communication chipset embedded in the portable terminal; a first terminal portion of the antenna pattern, the first terminal portion having one end connected to the short-range communication chipset and the other end connected to the side cover; and a second terminal portion having one end connected to the other end of the antenna pattern and the other end connected to the side cover.

Abstract: Suggested is a cover for a portable terminal which is driven by receiving wireless power from a portable terminal and performs communication with an IoT device by using the portable terminal having no IoT communication module embedded therein by performing communication with the IoT device via IoT communication. The suggested cover for a portable terminal comprises: a first antenna module for generating driving power through energy harvesting with a portable terminal; and a second antenna module and a third antenna module driven by the driving power, wherein one of the first antenna module and the second antenna module collects IoT data from the portable terminal, and wherein the third antenna module transmits the IoT data, collected by one of the first antenna module and the second antenna module, to an external IoT device.

Abstract: The present disclosure relates to an antenna module performing near field communication such as NFC and MST, and disclosed is a stacked antenna module that interposes an electromagnetic wave shielding sheet between a lower stacked flexible sheet and an upper stacked flexible sheet in order to implement performance that is equal to or better than that of the conventional antenna upon mounting on a portable terminal composed of a metal material cover, and implements an antenna pattern that winds an electromagnetic wave shielding sheet in the vertical direction thereof by connecting a first radiation pattern and a second radiation pattern formed on the lower stacked flexible sheet and the upper stacked flexible sheet, respectively, through a connector that penetrates the electromagnetic wave shielding sheet.

Abstract: The antenna module disclosed, as the antenna module formed with a type of a flexible printed circuit board, and mounted adjacent to an end portion of a mobile terminal, includes a lower layer sheet mounted on the mobile terminal, and having a first radiation pattern formed on the lower layer sheet; an electromagnetic wave shielding sheet with an area narrower than the lower layer sheet, and layered on an top of the lower layer sheet; an upper layer sheet layered on an top of the electromagnetic wave shielding sheet, and having a second radiation pattern formed on the upper layer sheet, a part of both ends of the upper layer sheet being attached to the lower layer sheet; and a connecting portion connecting the first radiation pattern and the second radiation pattern.

Abstract: The present invention suggests an antenna module in which a radiation pattern is alternately formed on an upper surface and a lower surface of a shielding sheet to be wound on the shielding sheet in a vertical direction, and a portable device having the same. In the suggested antenna module, the radiation pattern is alternately formed on the upper surface and the lower surface of the shielding sheet in the vertical direction of the shielding sheet, and the portable device comprises the antenna module having a radiation pattern formed along a short side direction of a back cover formed of a metal material, and mounted to be biased from the center of the back cover to the short side direction.

Abstract: An encryption apparatus includes a setting generator configured to generate a public key and a secret key necessary for encryption; and an encryptor configured to generate a homomorphic ciphertext which allows multiplication operation by using the generated public key and a plaintext.

Abstract: The present disclosure relates to an antenna module performing near field communication such as NFC and MST, and disclosed is a stacked antenna module that interposes an electromagnetic wave shielding sheet between a lower stacked flexible sheet and an upper stacked flexible sheet in order to implement performance that is equal to or better than that of the conventional antenna upon mounting on a portable terminal composed of a metal material cover, and implements an antenna pattern that winds an electromagnetic wave shielding sheet in the vertical direction thereof by connecting a first radiation pattern and a second radiation pattern formed on the lower stacked flexible sheet and the upper stacked flexible sheet, respectively, through a connector that penetrates the electromagnetic wave shielding sheet.

Abstract: The method for performing encryption including generating a secret key or a parameter for encrypting plaintext; converting the plaintext into ciphertext by using the secret key or the parameter; and transmitting the ciphertext to a database.

Abstract: The present invention suggests an antenna module in which a radiation pattern is alternately formed on an upper surface and a lower surface of a shielding sheet to be wound on the shielding sheet in a vertical direction, and a portable device having the same. In the suggested antenna module, the radiation pattern is alternately formed on the upper surface and the lower surface of the shielding sheet in the vertical direction of the shielding sheet, and the portable device comprises the antenna module having a radiation pattern formed along a short side direction of a back cover formed of a metal material, and mounted to be biased from the center of the back cover to the short side direction.

Abstract: The antenna module disclosed, as the antenna module formed with a type of a flexible printed circuit board, and mounted adjacent to an end portion of a mobile terminal, includes a lower layer sheet mounted on the mobile terminal, and having a first radiation pattern formed on the lower layer sheet; an electromagnetic wave shielding sheet with an area narrower than the lower layer sheet, and layered on an top of the lower layer sheet; an upper layer sheet layered on an top of the electromagnetic wave shielding sheet, and having a second radiation pattern formed on the upper layer sheet, a part of both ends of the upper layer sheet being attached to the lower layer sheet; and a connecting portion connecting the first radiation pattern and the second radiation pattern.

Abstract: A first electronic device is provided. The first electronic device includes a transceiver, and a processor configured to encrypt a part of information related to a second communication based on information related to a first communication performed between the first electronic device and a second electronic device and control the transceiver to transmit information related to the second communication to the second electronic device through the transceiver.

Abstract: An encryption apparatus includes a setting generator configured to generate an increasing function parameter regarding a predetermined one-way increasing function and a secret key necessary for encryption, and an encryptor configured to generate a first order-preserving encryption area regarding a plaintext using the one-way increasing function where the increasing function parameter is applied, generate a second encryption area regarding the plain text using the secret key, and generate a ciphertext by concatenating the generated first encryption area and the generated second encryption area.

Abstract: Provided is an NFC antenna module which connects a side cover (i.e. metal frame), which is formed at one side of a portable terminal, to the antenna pattern so that the side cover is operated as an auxiliary radiator of an antenna pattern. The presented NFC antenna module comprises: a side cover made of a metal material and coupled to one side of the portable terminal; an antenna pattern having one end connected to a short-range communication chipset embedded in the portable terminal; a first terminal portion of the antenna pattern, the first terminal portion having one end connected to the short-range communication chipset and the other end connected to the side cover; and a second terminal portion having one end connected to the other end of the antenna pattern and the other end connected to the side cover.

Abstract: A method of analyzing a program code of an electronic device includes configuring a tree by using a key string included in the program code and; in response to a command to find a specific key being received, performing a predetermined order traversal of the tree by using a string included in the specific key; in response to a node which matches a last string included in the specific key having a leaf node as a result of the predetermined order traversal, returning a value of the leaf node; and analyzing the program code by using the return value.

Abstract: An electronic apparatus is provided. The electronic apparatus which executes at least one application to perform a function using personal information includes a storage configured to store the personal information, where information related to protection of the personal information is set for each application and a processor configured to, in response to receiving a request for the personal information from the application, determine whether to protect the personal information based on the set information, to encrypt the personal information and to provide the encrypted personal information to the application based on the determination result, and in response to receiving an execution request with respect to a function related to encrypted personal information from the application, the processor is further configured to decrypt the encrypted personal information and to execute the function.

Abstract: The method for performing encryption including generating a secret key or a parameter for encrypting plaintext; converting the plaintext into ciphertext by using the secret key or the parameter; and transmitting the ciphertext to a database.

Abstract: A method and apparatus for managing user devices and contents with quick response (QR) codes. An image of a QR code displayed on a user terminal is captured; the captured image of the QR code is analyzed, and a domain registration request message is generated based on the QR code; and the domain registration request message is transmitted to a domain server, and a domain registration response message is received from the domain server.

Abstract: A first electronic device is provided. The first electronic device includes a transceiver, and a processor configured to encrypt a part of information related to a second communication based on information related to a first communication performed between the first electronic device and a second electronic device and control the transceiver to transmit information related to the second communication to the second electronic device through the transceiver.

Abstract: An encryption apparatus includes a setting generator configured to generate an increasing function parameter regarding a predetermined one-way increasing function and a secret key necessary for encryption, and an encryptor configured to generate a first order-preserving encryption area regarding a plaintext using the one-way increasing function where the increasing function parameter is applied, generate a second encryption area regarding the plain text using the secret key, and generate a ciphertext by concatenating the generated first encryption area and the generated second encryption area.