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package org.bouncycastle.crypto.prng;
public interface EntropySource
{
/**
* Return whether or not this entropy source is regarded as prediction resistant.
*
* @return true if it is, false otherwise.
*/
boolean isPredictionResistant();
/**
* Return a byte array of entropy.
*
* @return entropy bytes.
*/
byte[] getEntropy();
/**
* Return the number of bits of entropy this source can produce.
*
* @return size in bits of the return value of getEntropy.
*/
int entropySize();
}
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