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Bouncy Castle Cryptography Library 1.39
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org.bouncycastle.crypto.prng

Interface RandomGenerator

Known Implementing Classes:
DigestRandomGenerator, ReversedWindowGenerator, VMPCRandomGenerator
public interface RandomGenerator
Generic interface for objects generating random bytes.

Method Summary

void
addSeedMaterial(byte[] seed)
Add more seed material to the generator.
void
addSeedMaterial(long seed)
Add more seed material to the generator.
void
nextBytes(byte[] bytes)
Fill bytes with random values.
void
nextBytes(byte[] bytes, int start, int len)
Fill part of bytes with random values.

Method Details

addSeedMaterial

public void addSeedMaterial(byte[] seed)
Add more seed material to the generator.
Parameters:
seed - a byte array to be mixed into the generator's state.

addSeedMaterial

public void addSeedMaterial(long seed)
Add more seed material to the generator.
Parameters:
seed - a long value to be mixed into the generator's state.

nextBytes

public void nextBytes(byte[] bytes)
Fill bytes with random values.
Parameters:
bytes - byte array to be filled.

nextBytes

public void nextBytes(byte[] bytes,
                      int start,
                      int len)
Fill part of bytes with random values.
Parameters:
bytes - byte array to be filled.
start - index to start filling at.
len - length of segment to fill.

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