发明名称 |
Content alteration for prevention of unauthorized scripts |
摘要 |
Methods for preventing unauthorized scripting. The invention generates a human interactive proof to distinguish a human from a machine by generating a random set of characters and altering each of the characters individually to inhibit computerized character recognition. The invention also includes concatenating the altered characters into a character string to be rendered to a user as a test. The character string may be altered to further inhibit computerized character recognition. Other aspects of the invention are directed to computer-readable media for use with the methods.
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申请公布号 |
US7624277(B1) |
申请公布日期 |
2009.11.24 |
申请号 |
US20030373926 |
申请日期 |
2003.02.25 |
申请人 |
MICROSOFT CORPORATION |
发明人 |
SIMARD PATRICE Y.;SZELISKI RICHARD STEPHEN;BENALOH JOSH;CALINOV IULIAN D.;COUVREUR JULIEN D. |
分类号 |
G06F21/00 |
主分类号 |
G06F21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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