| 摘要 |
<p>Input challenge based authentication techniques are described in which data regarding a user's input signature is employed for authentication of the user to access resources. Different users have distinct input signatures that are indicative of the manner in which each individual user provides input including at least typing characteristics and timing data. Data regarding input signatures may be captured from user interaction with computing devices and associated with user accounts. Once sufficient data regarding a user's input signature is captured, access to a user account may be controlled at least in part based on the input signature. To do so, an input challenge that indicates a non-secret pattern of input is presented to the user in connection with an authentication sequence. The user reproduces the non-secret pattern of input and selective access to the user account is granted depending upon whether or not the reproduction matches the input signature.</p> |
