发明名称 |
Mask based challenge response test |
摘要 |
A computing system includes a processor; and a memory communicatively coupled to the processor. The processor is configured to: generate a challenge response test image comprising a plurality of well-formed construct elements forming a well-formed construct and a plurality of random construct elements; and provide a plurality of masks to be placed over the image, one of the number of masks configured to reveal the well-formed construct elements when placed over the image. |
申请公布号 |
US8898740(B2) |
申请公布日期 |
2014.11.25 |
申请号 |
US201113155654 |
申请日期 |
2011.06.08 |
申请人 |
International Business Machines Corporation |
发明人 |
Kruger Stephen Paul;Pieczul Olgierd Stanislaw |
分类号 |
G06F21/00;G06F21/31;H04L9/32 |
主分类号 |
G06F21/00 |
代理机构 |
Van Cott, Bagley, Cornwall & McCarthy P.C. |
代理人 |
Nichols Steven L.;Van Cott, Bagley, Cornwall & McCarthy P.C. |
主权项 |
1. A computing system comprising:
a processor; and a memory communicatively coupled to said processor; in which said processor is configured to:
generate a challenge response test image comprising a plurality of well-formed construct elements forming a well-formed construct and a plurality of random construct elements; andprovide a plurality of masks to be placed over said image, one of said number of masks configured to reveal said well-formed construct elements when placed over said image;in which said well-formed construct elements comprise words or images of a properly formed sentence and said well-formed construct comprises said sentence. |
地址 |
Armonk NY US |