METHOD AND APPARATUS FOR PERFORMING SECURE COMMUNICATION USING ONE TIME PASSWORD
First Claim
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1. A user computer for using a communication service, comprising:
- an OTP generator that generates a one time password (OTP); and
a first encryption communication module that transmits user information and an OTP value generated by the OTP generator to a service server which provides the communication service, in order to perform user authentication, and performs encryption communication with the service server using data encoded by the OTP value.
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Abstract
The invention relates to a communication method and system using a one time password (OTP). The communication system includes: a user computer that has an OTP generator for generating the OTP provided therein; a service server that performs user authentication using user information and an OTP value input from the user computer, and communicates with the user computer using the encoded data that is associated with the OTP value, when the user authentication succeeds; and an OTP integrated authentication server that verifies the OTP value between the user computer and the service server.
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Citations
16 Claims
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1. A user computer for using a communication service, comprising:
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an OTP generator that generates a one time password (OTP); and a first encryption communication module that transmits user information and an OTP value generated by the OTP generator to a service server which provides the communication service, in order to perform user authentication, and performs encryption communication with the service server using data encoded by the OTP value. - View Dependent Claims (2, 3, 4)
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5. A service server for providing a communication service, comprising:
a second encryption communication module that performs a first user authentication process on the basis of user information input from a user computer that requests the communication service, verifies an OTP value input from the user computer through communication with an OTP integrated authentication server, thereby performing a second user authentication process, and when the user authentication of the user computer succeeds, performs encryption communication with the user computer using encoded data that is associated with the OTP value. - View Dependent Claims (6, 7, 8, 9)
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10. A communication method using a one time password (OTP), comprising:
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receiving user information and an OTP value from a user computer in a service server; performing a first user authentication process using the user information; querying an OTP integrated authentication server for the OTP value to verify the OTP value, thereby performing a second user authentication process; and when the first and second user authentication processes succeed, establishing a session for communication with the user computer, and performing encryption communication through the established session, using data encoded by the OTP value. - View Dependent Claims (11, 12, 13)
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14. A communication method using a one time password (OTP), comprising:
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receiving an OTP value for user authentication from an OTP generator in a user computer; transmitting user information and the OTP value to a service server; and when the user authentication succeeds and the service server establishes a session for communication, performing encryption communication through the established session, using data encoded by the OTP value. - View Dependent Claims (15, 16)
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Specification