org.gudy.bouncycastle.crypto
Interface DerivationFunction

All Known Implementing Classes:

BaseKDFBytesGenerator, KDF2BytesGenerator, MGF1BytesGenerator

public interface DerivationFunction

base interface for general purpose byte derivation functions.

Method Summary

int	generateBytes(byte[] out, int outOff, int len)
Digest	getDigest() return the message digest used as the basis for the function
void	init(DerivationParameters param)

Method Detail

init

void init(DerivationParameters param)

getDigest

Digest getDigest()

return the message digest used as the basis for the function

generateBytes

int generateBytes(byte[] out,
                  int outOff,
                  int len)
                  throws DataLengthException,
                         java.lang.IllegalArgumentException

Throws:

DataLengthException

java.lang.IllegalArgumentException