IDENTIFICATION OF VISUAL INTERNATIONAL DOMAIN NAME COLLISIONS

摘要

To provide effective ways of identifying and mitigating "homograph attacks", in which a malicious entity registers an international domain name (IDN) that appears to be visually similar or identical to an already existing domain name.SOLUTION: An IDN collision detection server retrieves a first domain name that includes a punycode element. The IDN collision detection server converts the first domain name into a second domain name that includes a Unicode character corresponding to the punycode element 408. The IDN collision detection server converts the second domain name into an image 410. The IDN collision detection server performs one or more optical character recognition operations on the image to generate a textual string associated with the image 412. The IDN collision detection server determines that the textual string matches at least a portion of a third domain name.SELECTED DRAWING: Figure 4A