Samsung Electronics Co., Ltd.

Seoul National University

Amosense Co., Ltd

Yong Ho Hwang

Jae Woo Seo

Jinsu Kim

Jung Hee Cheon

Sungwook Kim

Se Min Oh

Hyung Il Baek

Seung Yeob Yi

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.

Cover for portable terminal

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.

Encryption apparatus, method for encryption and computer-readable recording medium

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.

Method and apparatus for encrypting data

Growing community of inventors

Seoul, South Korea

Yong Ho Hwang