Samsung Sds Co., Ltd.

Sung-Duck Kim

Sung-il Kim

Hyun-Woo Noh

Geun-Young Choi

Jin-Yeob Kim

Hak-Hyun Nam

Disclosed are a system and a method for one-time password (OTP)-based authentication. The system for OTP-based authentication includes a transceiver module configured to receive an authentication request from a client and transmit a result of the authentication according to the authentication request to the client, an authentication accumulation management module configured to provide statistical information about authentication success of the client for each time interval within a predetermined effective range of time, an OTP generation module configured to generate a server-side OTP using previously stored authentication information and time information that is acquired from the statistical information about authentication success, and an authentication module configured to authenticate the client by comparing a client-side OTP included in the authentication request with the server-side OTP.

System and method for one time password-based authentication

Disclosed are a global server load balancer (GSLB) apparatus and a method for dynamically controlling cache time-to-live (TTL) in the GSLB apparatus. The GSLB apparatus which performs load balancing among a plurality of local servers includes a domain name system (DNS) query processor that receives a query message from a DNS server, a server selector that selects a local server among the plurality of local servers based on the received query message, a load calculator that collects state information of the GSLB apparatus, and calculates a load of the GSLB apparatus from the collected state information, and a TTL controller that updates a TTL of the GSLB apparatus based on the calculated load.

Growing community of inventors

Seoul, South Korea

Sung-Duck Kim