org.bouncycastle.crypto.prng
Interface EntropySource

public interface EntropySource

Base interface describing an entropy source for a DRBG.

Method Summary

int	entropySize() Return the number of bits of entropy this source can produce.
byte[]	getEntropy() Return a byte array of entropy.
boolean	isPredictionResistant() Return whether or not this entropy source is regarded as prediction resistant.

Method Detail

isPredictionResistant

public boolean isPredictionResistant()

Return whether or not this entropy source is regarded as prediction resistant.

Returns:

true if it is, false otherwise.

getEntropy

public byte[] getEntropy()

Return a byte array of entropy.

Returns:

entropy bytes.

entropySize

public int entropySize()

Return the number of bits of entropy this source can produce.

Returns:

size in bits of the return value of getEntropy.