org.bouncycastle.crypto.digests

Class ShortenedDigest

public class ShortenedDigest extends Object implements ExtendedDigest

Wrapper class that reduces the output length of a particular digest to only the first n bytes of the digest function.

Constructor Summary
	ShortenedDigest(ExtendedDigest baseDigest, int length) Base constructor.

Method Summary
int	doFinal(byte[] out, int outOff)
String	getAlgorithmName()
int	getByteLength()
int	getDigestSize()
void	reset()
void	update(byte in)
void	update(byte[] in, int inOff, int len)

Constructor Detail

public ShortenedDigest(ExtendedDigest baseDigest, int length)

Base constructor.

Parameters: baseDigest underlying digest to use. length length in bytes of the output of doFinal.

Throws: IllegalArgumentException if baseDigest is null, or length is greater than baseDigest.getDigestSize().

public int doFinal(byte[] out, int outOff)

public String getAlgorithmName()

public int getByteLength()

public int getDigestSize()

public void reset()

public void update(byte in)

public void update(byte[] in, int inOff, int len)