| 摘要 |
<p>The present invention relates to providing active security authentication, which involves providing an active security authentication system including a terminal and a content server. The present invention may enable an active security authentication system including a terminal and a content server to be provided. The terminal outputs a security authentication screen based on a random-number matrix which arranges a plurality of keys by arranging random numbers, generates input information including at least one key input from among the plurality of keys, and provides the generated input information to a content server to acquire security authentication according to the input information from the content server. The content server receives, from the terminal, at least one item key in an exception-key format and which should not be pressed from among a plurality of keys in order to detect an illegal attempt to disable the security, and also receives the security-setting information for security authentication, and registers the at least one received item key and the security-setting information, and performs security authentication on the terminal or determines illegal usage on the basis of the input information transmitted by the terminal after providing the security authentication screen to the terminal as a corresponding terminal performing access.</p> |
