iaik.xml.crypto.alg.mac

Class HMACProxyMac

java.lang.Object

javax.crypto.MacSpi

iaik.xml.crypto.alg.mac.ProxyMac

iaik.xml.crypto.alg.mac.HMACProxyMac

Direct Known Subclasses:

HMACMD5ProxyMac, HMACRipeMD160ProxyMac, HMACSHA1ProxyMac, HMACSHA224ProxyMac, HMACSHA256ProxyMac, HMACSHA384ProxyMac, HMACSHA512ProxyMac

public abstract class HMACProxyMac
extends ProxyMac

This Mac is an abstract base class for hash algorithm based message authentication codes.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	outputLength_

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	HMACProxyMac() Creates a new instance of this HMACProxyMac.

Method Summary

Modifier and Type	Method and Description
protected byte[]	engineDoFinal()
protected void	engineInit(Key key, AlgorithmParameterSpec params)
protected abstract int	getDefaultOutputLength() Returns the default output length.

Methods inherited from class iaik.xml.crypto.alg.mac.ProxyMac

engineGetMacLength, engineReset, engineUpdate, engineUpdate, engineUpdate, getInstance, getInstanceUncaught, getMacName

Methods inherited from class javax.crypto.MacSpi

clone

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

outputLength_

protected int outputLength_

Constructor Detail

HMACProxyMac

protected HMACProxyMac()
                throws NoSuchAlgorithmException,
                       NoSuchProviderException

Creates a new instance of this HMACProxyMac.

Throws:

NoSuchAlgorithmException

NoSuchProviderException

Method Detail

getDefaultOutputLength

protected abstract int getDefaultOutputLength()

Returns the default output length.

Returns:

the default output length

engineInit

protected void engineInit(Key key,
                          AlgorithmParameterSpec params)
                   throws InvalidKeyException,
                          InvalidAlgorithmParameterException

Overrides:

engineInit in class ProxyMac

Throws:

InvalidKeyException

InvalidAlgorithmParameterException

See Also:

MacSpi.engineInit(java.security.Key, java.security.spec.AlgorithmParameterSpec)

engineDoFinal

protected byte[] engineDoFinal()

Overrides:

engineDoFinal in class ProxyMac

See Also:

MacSpi.engineDoFinal(), SignatureMethodImpl.checkMAC(XMLCryptoContext, boolean)