发明名称 |
Method and apparatus for random bit-string generation utilizing environment sensors |
摘要 |
A random number generator that generates random numbers based on measurements of one or more environmental quantities. The random number generator includes a first sensor for generating a first sequence of digital values representing measurements of a first environmental quantity at successive times. A first compressor that provides a first sequence of compressed values having a lower internal correlation than the values of the first sequence of digital values compresses the sequence of digital values. The random number generator generates an output random number via a circuit for generating a random number from an input sequence of digital values, the input sequence being a function of one of the first sequence of compressed values. The circuit may utilize a hash function to provide further security. In addition, the circuit includes a blocking circuit for preventing the generator from outputting a random number if the input sequences fail a predetermined test. |
申请公布号 |
US8315383(B2) |
申请公布日期 |
2012.11.20 |
申请号 |
US20010916785 |
申请日期 |
2001.07.27 |
申请人 |
SEROUSSI GADIEL;SMITH MARK TAYLOR;BAER MICHAEL;HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
SEROUSSI GADIEL;SMITH MARK TAYLOR;BAER MICHAEL |
分类号 |
G06F21/00;G06F7/58;G09C1/00 |
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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