Independent Randomness Tests based on the Orthogonalized Non-overlapping Template Matching Test
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In general, randomness tests included in a test suite are not independent of each other. This renders it difficult to fix a rational criterion through the whole test suite with an explicit significance level. In this paper, we focus on the Non-overlapping Template Matching Test, which is a randomness test included in the NIST statistical test suite. The test uses a parameter called "template" and we can consider a test item for each template. We investigate dependency between two test items by deriving the joint probability density function of the two p-values and propose a transformation to make multi test items independent of each other.
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