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package org.spongycastle.crypto.prng.drbg;
/**
* Interface to SP800-90A deterministic random bit generators.
*/
public interface SP80090DRBG
{
/**
* Populate a passed in array with random data.
*
* @param output output array for generated bits.
* @param additionalInput additional input to be added to the DRBG in this step.
* @param predictionResistant true if a reseed should be forced, false otherwise.
*
* @return number of bits generated, -1 if a reseed required.
*/
int generate(byte[] output, byte[] additionalInput, boolean predictionResistant);
/**
* Reseed the DRBG.
*
* @param additionalInput additional input to be added to the DRBG in this step.
*/
void reseed(byte[] additionalInput);
}
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