发明名称 APPARATUS AND METHOD FOR EVALUATING THE PREDICTABILITY OF A PASS PHRASE
摘要 A computer readable storage medium includes executable instructions to identify sub-string repetition in a pass phrase. A sub-string index is generated. The number of bits required to represent each character in the pass phrase is determined. An entropy value is assigned to each character in the pass phrase. A total entropy value for the pass phrase is computed to provide an indication of pass phrase quality.
申请公布号 US2009157588(A1) 申请公布日期 2009.06.18
申请号 US20070955671 申请日期 2007.12.13
申请人 PGP CORPORATION 发明人 JIVSOV ANDREY
分类号 G06N5/00 主分类号 G06N5/00
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