Samsung Electronics Co., Ltd.

Seoul National University

Jeong Hyun Yi

Eunah Kim

Eun Ah Kim

Alexey Fomin

Tae-Chul Jung

Taekyoung Kwon

Sergey Bezzateev

Tae Jin Park

Jung Hee Cheon

Won Keun Kong

Mikhail V Stepanov

Mun-Kyu Lee

Sergei Bezzateev

Evgeny Linsky

Alexandra Afanasyeva

Alexandra Afanaseva

Alexandria Afanasyeva

A mobile privacy protection system using a proxy, a proxy device, and a mobile privacy protection method are provided. The mobile privacy protection system includes: an electronic tag to store predetermined tag information; a proxy device to adjust a privacy level of the electronic tag; and a home server to create new tag information in response to a request from the proxy device wherein the new tag information is used to adjust the privacy level.

Mobile privacy protection system using proxy, proxy device and mobile privacy protection method

A distributed Rivest Shamir Adleman (RSA) signature generation method in an ad-hoc network and a node of an ad-hoc network. The distributed RSA signature generation method in an ad-hoc network includes distributing key share information, which is generated using a maximum distance separable (MDS) code and a random symmetric matrix, to a plurality of nodes; generating, in a fewer number of nodes than the plurality of nodes, a partial signature using the distributed key share information; transmitting the partial signature to a signature generation node; and generating an RSA signature using the partial signature, in the signature generation node.

Method and node for generating distributed Rivest Shamir Adleman signature in ad-hoc network

A mobile system, a service system, and a service providing method for securely transmitting private information for use in a service are provided. The mobile system maintains at least one user data and identification data with respect to the user data used for processing at least one service, sets a session key for the service system, and encrypts service data identified based on the identification data to transmit to the service system.

Mobile system, service system, and service providing method to securely transmit private information for use in service

A mobile system, a service system, and a key authentication method to manage a key in a local wireless communication are provided. The mobile system and the service system may generate a hash value with respect to a public key of the service system using an identical hash function, and output a result corresponding to the hash value.

Mobile system, service system, and key authentication method to manage key in local wireless communication

A method of protecting a broadcast frame, the method comprising broadcasting a beacon and a maintenance beacon frame (MBF) from an access point (AP) to a plurality of terminals during a maintenance beacon waiting period (MBWP); and broadcasting broadcast management frames (BMFs) from the AP to the plurality of terminals during a broadcast management frame waiting period (BMFWP), wherein the MBF comprises a BMFs message integrity code (MIC) field including a BMFs MIC calculated from concatenated BMFs to be sent in a current beacon interval.

Method of protecting broadcast frame, terminal authenticating broadcast frame, and access point broadcasting broadcast frame

A batch verification apparatus and method wherein, the method includes: generating a plurality of secret keys, a plurality of public keys corresponding to the plurality of secret keys, and a plurality of verification values corresponding to the plurality of public keys; calculating a first batch verification value based on the plurality of verification values; calculating a second batch verification value based on the plurality of secret keys and the plurality of verification values; comparing the first batch verification value and the second batch verification value; and determining that a batch of the received plurality of verification values is verified when the first batch verification value is equal to the second batch verification value.

Apparatus for batch verification and method using the same

A method and system for performing a distributed verification with respect to measurement data in a sensor network. The method of performing the distributed verification with respect to measurement data in a sensor network includes: verifying, by an aggregator, the measurement data received from each of a plurality of sensors; generating, by the aggregator, verification request data by using the verified measurement data; transmitting the verification request data to a verifier; and verifying, by the verifier, the aggregator via a predetermined number of sensors of the plurality of sensors and the verification request data. The method of performing a distributed verification with respect to measurement data in a sensor network further includes transmitting, by the aggregator, an aggregation result with respect to the measurement data to a base station when the aggregator is verified; and verifying, by the base station, the aggregation result.

Method and system for performing distributed verification with respect to measurement data in sensor network

A key calculation method and a shared key generation method, the key calculation method including: generating two keys to perform a key calculation; calculating a first value based on coefficients having an identical coefficient value among coefficients included in each of the two keys; and performing a coordinates operation or an exponentiation operation based on the first value, wherein the calculating of the first value is performed with respect to each of coefficient values included in the two keys, excluding 0.

Key calculation method and key agreement method using the same

A tag authentication method, and a tag and reader performing the method are provided. The tag authentication method, including: a reader generating a first random number and transmitting the first random number to a tag; the reader receiving a second random number and a first verification value from the tag; the reader computing a second verification value based on the first random number and the second random number; and the reader comparing the first verification value and the second verification value.

Tag authentication method using rotation, and tag and reader performing the method

A distributed Rivest Shamir Adleman (RSA) signature generation method in an ad-hoc network and a signature generation node are provided, including steps for distributing key information to a plurality of nodes using an RSA parameter and a maximum distance separable (MDS) code, in a dealer node, generating a partial signature using the key information and transmitting the generated partial signature to a signature generation node, in the plurality of nodes, and generating an RSA signature using the partial signature, in the signature generation node, wherein the RSA signature is generated using the partial signature, received from a fewer number of nodes than the entire plurality of nodes.

Distributed Rivest Shamir Adleman signature method and signature generation node

A public key generation method in Elliptic Curve Cryptography (ECC), and a public key generation system performing the method are provided. The public key generation method includes reducing a sequence length of the signed ternary &#x3c4;-adic representation of the private key 'k' using properties of an elliptic curve, representing a reduced secret key 'k' in a signed ternary &#x3c4;-adic representation; and computing a public key kP by multiplying the &#x3c4;-adic representation of the private key &#x2018;k&#x2019; whose sequence length is reduced on point P on the elliptic curve.

Growing community of inventors

Daejeon, South Korea

Jeong Hyun Yi