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The Long Term Stable (LTS) Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains the JCA/JCE provider and low-level API for the BC LTS version 2.73.6 for Java 8 and later.
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package org.bouncycastle.jcajce.provider.asymmetric.util;
public class PrimeCertaintyCalculator
{
private PrimeCertaintyCalculator()
{
}
/**
* Return the current wisdom on prime certainty requirements.
*
* @param keySizeInBits size of the key being generated.
* @return a certainty value.
*/
public static int getDefaultCertainty(int keySizeInBits)
{
// Based on FIPS 186-4 Table C.1
return keySizeInBits <= 1024 ? 80 : (96 + 16 * ((keySizeInBits - 1) / 1024));
}
}