Samsung Sds Co., Ltd.

Han Eung Hwang

Seong Dae Song

Seung Kuk Kim

Disclosed is an authentication system and method. The authentication system according to one embodiment of the present disclosure comprises a transceiver for receiving an authentication request including a client-side OTP and encoded account information from a client, and transmitting the result of the authentication performed in accordance with the authentication request to the client; a decoder for decoding the encoded account information so as to compute the account information of the client and an authentication request time; a server-side OTP generator for generating a server-side OTP using the computed account information of the client and authentication request time; and an authenticator for comparing the client-side OTP included the authentication request and the server-side OTP in order to authenticate the client.

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Seoul, South Korea

Han Eung Hwang