Abstract: An image forming apparatus and method for verifying forgery or falsification of an execution file by using a trusted platform module configured to generate an encryption key are provided. The method includes generating the encryption key by using a hash value for an operating system (OS) kernel image, the generating being performed by the trusted platform module, and verifying forgery or falsification of the execution file based on the generated encryption key.

Abstract: A secured device including a security hardware module and a method thereof are provided. The secured device generates first user authentication information based on a user input, generates encryption key generation information corresponding to the first user authentication information, receives second user authentication information from an electronic device, and transmits to the electronic device the encryption key generation information corresponding to the first user authentication information when the second user authentication information matches the first user authentication information. The first user authentication information and the encryption key generation information are secured by the security hardware module.

Abstract: An image forming apparatus and method for verifying forgery or falsification of an execution file by using a trusted platform module configured to generate an encryption key are provided. The method includes generating the encryption key by using a hash value for an operating system (OS) kernel image, the generating being performed by the trusted platform module, and verifying forgery or falsification of the execution file based on the generated encryption key.

Abstract: A secured device including a security hardware module and a method thereof are provided. The secured device generates first user authentication information based on a user input, generates encryption key generation information corresponding to the first user authentication information, receives second user authentication information from an electronic device, and transmits to the electronic device the encryption key generation information corresponding to the first user authentication information when the second user authentication information matches the first user authentication information. The first user authentication information and the encryption key generation information are secured by the security hardware module.

Abstract: A user authentication method using a self-signed certificate of a web server includes: receiving a log-in message generated by using a public key registered to the self-signed certificate of the web server from a client device; generating a response message by using the log-in message and a secret key corresponding to the public key; transmitting the generated response message to the client device; receiving a verification value from the client device via a secure socket layer (SSL) channel connected by using the self-signed certificate of the web server from the client device when a reliability of the response message is verified at the client device; verifying a reliability of the log-in message by using the received verification value; and confirming completion of user authentication if the reliability of the log-in message is verified.

Abstract: An electronic apparatus includes a secure unit to store public key information, an input unit to receive user authentication information and a data searching word, a user authenticating unit to perform user authentication with the inputted user authentication information, an encryption generating unit to generate a searching word encryption to use in data search, and a control unit to control generating the searching word encryption using the previously-stored public key information, the inputted user authentication information, and the data searching word.

Abstract: A user authentication method using a self-signed certificate of a web server includes: receiving a log-in message generated by using a public key registered to the self-signed certificate of the web server from a client device; generating a response message by using the log-in message and a secret key corresponding to the public key; transmitting the generated response message to the client device; receiving a verification value from the client device via a secure socket layer (SSL) channel connected by using the self-signed certificate of the web server from the client device when a reliability of the response message is verified at the client device; verifying a reliability of the log-in message by using the received verification value; and confirming completion of user authentication if the reliability of the log-in message is verified.

Abstract: An electronic apparatus includes a secure unit to store public key information, an input unit to receive user authentication information and a data searching word, a user authenticating unit to perform user authentication with the inputted user authentication information, an encryption generating unit to generate a searching word encryption to use in data search, and a control unit to control generating the searching word encryption using the previously-stored public key information, the inputted user authentication information, and the data searching word.