Abstract: Provided is an account information management method using an extension program installed on a web browser, a mobile password manager which is an application program for account information management installed on a mobile device of a user, and an intermediate server communicating with the extension program and the mobile password manager.

Abstract: A service identifying and processing method using a wireless terminal message according to an exemplary embodiment of the present invention includes (a) receiving a wireless terminal message by a first entity which is a mobile device; and (b) expressing, by a first agent which is an information processing application program installed on the first entity, entity information of second entity based on the wireless terminal message and service confirmation information related to service provided by the second entity, through an application screen by the first agent.

Abstract: A service identifying and processing method using a wireless terminal message according to an exemplary embodiment of the present invention includes (a) receiving a wireless terminal message by a first entity which is a mobile device; and (b) expressing, by a first agent which is an information processing application program installed on the first entity, entity information of second entity based on the wireless terminal message and service confirmation information related to service provided by the second entity, through an application screen by the first agent.

Abstract: According to the exemplary embodiments of the present invention, there is provided a blockchain based authentication and transaction system including a user DID (Distributed Identity) wallet which is an application program installed on a user's mobile terminal. Here, the user DID wallet allows a user to ascertain whether a counterpart is a legitimate party by verifying a counterpart's VP and expressing the verified counterpart ascertainment information to the user on a screen when the counterpart's VP provided from a counterpart system which is an authentication or transaction counterpart is obtained.

Abstract: The present invention relates to an electronic certificate managing method based on biometrics information, and more particularly to a method whereby a relevant electronic certificate can be used only when biometrics information (e.g., biometrics template) checked and generated by an issuing agency at the time of issuance of the electronic certificate and biometrics information obtained at the time of use of the relevant electronic certificate are mutually matched.

Abstract: Disclosed is an authentication management system including a custom credential provider installed on a computing device to support OS account authentication through an alternate authentication method that replaces an OS account authentication method supported by an operating system of the computing device, and an authentication management server communicably connected to the custom credential provider via a communication network to perform user authentication related to a user who attempts to OS account authentication using the alternate authentication information when the OS account authentication based on the alternate authentication information used in the alternate authentication method is attempted and transfer, to the custom credential provider, account authentication information necessary to perform OS account authentication according to the OS account authentication method supporting by the operating system or a seed value that is based on generation of the account authentication information when the

Abstract: An account login information management method includes: performing, by a custom prudential provider installed in a computing device, operating system account authentication, supported by an operating system of the computing system, and alternative authentication; and changing, an account management client installed in the computing device, a password of an operating system account by updating an existing password used in the operating system account authentication with a new password.

Abstract: Provided is an authentication system including: a device authentication agent installed in an Internet of things (IoT) device with a communication module and generating first device authentication information for authenticating the corresponding IoT device; an authentication server connected with the IoT device through wired or wireless communication and generating second device authentication information for authenticating the IoT device; and a mobile agent installed in a mobile device of a user, connected with the IoT device and the authentication server through the wireless communication, and verifying whether the IoT device or a message determined to be received from the IoT device is authentic according to whether the first device authentication information transmitted from the IoT device and the second device authentication information transmitted from the authentication server coincide with each other.

Abstract: Provided is an authentication system including: a device authentication agent installed in an Internet of things (IoT) device with a communication module and generating first device authentication information for authenticating the corresponding IoT device; an authentication server connected with the IoT device through wired or wireless communication and generating second device authentication information for authenticating the IoT device; and a mobile agent installed in a mobile device of a user, connected with the IoT device and the authentication server through the wireless communication, and verifying whether the IoT device or a message determined to be received from the IoT device is authentic according to whether the first device authentication information transmitted from the IoT device and the second device authentication information transmitted from the authentication server coincide with each other.

Abstract: An authentication system includes: an authentication server configured to perform an authentication procedure for an online service server and a mobile authentication application installed on a mobile device to perform an authentication procedure for a connection terminal connected to the online service server, wherein the authentication server generates a service authentication code in response to a service request of a user to the online service server through the connection terminal, transmits the service authentication code to the online service server such that the online service server discloses the service authentication code on a service screen, performs PKI(Public Key Infrastructure)-based encryption, and transmits an encrypted service authentication code or an encrypted service authentication code-related value to the mobile authentication application to enable the user to verify the service authentication code through a screen of the mobile authentication application.

Abstract: Disclosed is an authentication management system including a custom credential provider installed on a computing device to support OS account authentication through an alternate authentication method that replaces an OS account authentication method supported by an operating system of the computing device, and an authentication management server communicably connected to the custom credential provider via a communication network to perform user authentication related to a user who attempts to OS account authentication using the alternate authentication information when the OS account authentication based on the alternate authentication information used in the alternate authentication method is attempted and transfer, to the custom credential provider, account authentication information necessary to perform OS account authentication according to the OS account authentication method supporting by the operating system or a seed value that is based on generation of the account authentication information when the

Abstract: Provided is an authentication system including: a device authentication agent installed in an Internet of things (IoT) device with a communication module and generating first device authentication information for authenticating the corresponding IoT device; an authentication server connected with the IoT device through wired or wireless communication and generating second device authentication information for authenticating the IoT device; and a mobile agent installed in a mobile device of a user, connected with the IoT device and the authentication server through the wireless communication, and verifying whether the IoT device or a message determined to be received from the IoT device is authentic according to whether the first device authentication information transmitted from the IoT device and the second device authentication information transmitted from the authentication server coincide with each other.