Evaluation of a password

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United States of America Patent

PATENT NO 9721088
SERIAL NO

14864986

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Abstract

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A method and computer for assessing whether a password can be generated by using characteristics of a physical arrangement of keys of an input device. A received password includes characters corresponding to respective select keys in a sequence of select keys of the input device. For each select key, a final detection frequency is calculated as a sum of an initial detection frequency and an additive correction. A password determination value is calculated as a ratio of a total number of select keys having a final detection frequency equal to a minimum detection frequency and the total number of select keys in the sequence of select keys. A determination of whether the calculated password determination value is, or is not, less than a predetermined threshold value indicates that the password cannot, or can, respectively, be generated by using the characteristics of the physical arrangement of keys of the input device.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miura, Takeshi Tokyo, JP 82 1529
Takenoshita, Hiroyuki Kanagawa, JP 17 288
Yanagihara, Yuji Tokyo, JP 3 19

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