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Random number generator, encryption device, and authentication device
US9015218B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9015218-B2 |
| Application number | US-201213626221-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 25, 2012 |
| Priority date | Mar 26, 2010 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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Abstract
Official abstract text for this publication.
A random number generator includes an exclusive-OR circuit, a random number determiner, and a random number generation instruction inhibitor. The exclusive-OR circuit obtains an exclusive-OR of outputs from a number of digital circuits. The random number determiner determines whether or not an output generated according to an instruction to generate random numbers is a random number for each of the digital circuits. The random number generation instruction inhibitor inhibits an instruction to generate random numbers to be provided to the digital circuits whose output generated according to the instruction is determined to be not a random number by the random number determiner.
First claim
Opening claim text (preview).
What is claimed is: 1. A random number generator comprising: an exclusive-OR circuit configured to obtain an exclusive-OR of outputs from a plurality of digital circuits; a random number determiner configured to determine whether or not an output generated according to an instruction to generate random numbers is a random number for each of the plurality of digital circuits; and a random number generation instruction inhibitor configured to inhibit an instruction to generate r…
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Electricity · mapped topic
- G06F7/58Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9015218B2 cover?
- A random number generator includes an exclusive-OR circuit, a random number determiner, and a random number generation instruction inhibitor. The exclusive-OR circuit obtains an exclusive-OR of outputs from a number of digital circuits. The random number determiner determines whether or not an output generated according to an instruction to generate random numbers is a random number for each of…
- Who is the assignee on this patent?
- Fujitsu Ltd
- What technology area does this patent fall under?
- Primary CPC classification G06F7/58. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 21 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).