| 摘要 |
In a challenge-response authentication system, stored personal voiceprints (112, fig 1b) are linked with visual (202, fig. 2a) or audio cues and represented 146 to the user 102 who must provide the required utterance for capture and processing (via eg. a Java application on a mobile phone 102b) in order to match 150 a captured sound file (204). The authentication status of the user may then be elevated 152. The system may also use QR codes 140 to transfer dynamic identification data or location information to block certain addresses or countries. |
