发明名称 |
QUALITY DETECTING METHOD, RANDOM NUMBER GENERATOR, AND ELECTRONIC DEVICE |
摘要 |
A quality detecting method, includes: storing, in a memory, an upper limit value and a lower limit value that specify a distribution range of a score corresponding to at least one type for each of variant random number sequences generated by shuffling an initial random number sequence; and causing a computer to: generate verification random number sequences; calculate a score corresponding to the type for each of the verification random number sequences; compare the scores of the verification random number sequences with the upper limit value and the lower limit value; acquire a frequency at which the scores of the verification random number sequences are distributed in the distribution range based on a comparison result; and detect, based on the frequency, quality of a physical random number generation circuit. |
申请公布号 |
US2016110165(A1) |
申请公布日期 |
2016.04.21 |
申请号 |
US201514847078 |
申请日期 |
2015.09.08 |
申请人 |
FUJITSU LIMITED |
发明人 |
KOKUBO Hirotaka;YAMAMOTO Dai;TAKENAKA Masahiko;Furukawa Kazuyoshi |
分类号 |
G06F7/58 |
主分类号 |
G06F7/58 |
代理机构 |
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代理人 |
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主权项 |
1. A quality detecting method, comprising:
storing, in a memory, an upper limit value and a lower limit value that specify a distribution range of a score corresponding to at least one type for each of variant random number sequences generated by shuffling an initial random number sequence; and causing a computer to: generate verification random number sequences; calculate a score corresponding to the type for each of the verification random number sequences; compare the scores of the verification random number sequences with the upper limit value and the lower limit value; acquire a frequency at which the scores of the verification random number sequences are distributed in the distribution range based on a comparison result; and detect, based on the frequency, quality of a physical random number generation circuit. |
地址 |
Kawasaki-shi JP |