org.neuclear.commons.crypto.signers
Class DefaultSigner

java.lang.Object
  org.neuclear.commons.crypto.signers.DefaultSigner

All Implemented Interfaces:

BrowsableSigner, PublicKeySource, Signer

public final class DefaultSigner
extends java.lang.Object
implements BrowsableSigner

Easy to use preconfigured Signer that uses the standard default JCE KeyStore User: pelleb Date: Oct 29, 2003 Time: 3:22:17 PM

Field Summary

Fields inherited from interface org.neuclear.commons.crypto.signers.Signer

KEY_DSA, KEY_NONE, KEY_OTHER, KEY_RSA

Constructor Summary

DefaultSigner()

DefaultSigner(InteractiveAgent agent)

Method Summary

boolean	canSignFor(java.lang.String name) Returns true if the Signer contains a signer for the given name
void	createKeyPair(java.lang.String alias, char[] passphrase)
java.security.PublicKey	generateKey() Creates a new KeyPair, stores the PrivateKey using the base32 sha1 of the public key as it's alias and returns the PublicKey.
java.security.PublicKey	generateKey(java.lang.String alias) Creates a new KeyPair, stores the PrivateKey using the given alias and returns the PublicKey.
InteractiveAgent	getAgent()
int	getKeyType(java.lang.String name) Checks the key type of the given alias
java.security.PublicKey	getPublicKey(java.lang.String name)
java.util.Iterator	iterator()
void	save()
void	save(boolean force)
byte[]	sign(byte[] data, SetPublicKeyCallBack callback)
byte[]	sign(java.lang.String name, byte[] data) Signs the data with the privatekey of the given name
byte[]	sign(java.lang.String name, byte[] data, boolean incorrect)
byte[]	sign(java.lang.String name, char[] pass, byte[] data, SetPublicKeyCallBack callback)

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultSigner

public DefaultSigner(InteractiveAgent agent)
              throws UserCancellationException

Throws:

UserCancellationException

DefaultSigner

public DefaultSigner()
              throws UserCancellationException

Throws:

UserCancellationException

Method Detail

sign

public final byte[] sign(java.lang.String name,
                         byte[] data)
                  throws NonExistingSignerException,
                         UserCancellationException

Description copied from interface: Signer

Signs the data with the privatekey of the given name

Specified by:

sign in interface Signer

Parameters:

name - Alias of private key to be used within KeyStore

data - Data to be signed

Returns:

The signature

Throws:

NonExistingSignerException

UserCancellationException

sign

public final byte[] sign(java.lang.String name,
                         byte[] data,
                         boolean incorrect)
                  throws UserCancellationException,
                         NonExistingSignerException

Throws:

UserCancellationException

NonExistingSignerException

canSignFor

public final boolean canSignFor(java.lang.String name)

Description copied from interface: Signer

Returns true if the Signer contains a signer for the given name

Specified by:

canSignFor in interface Signer

Returns:

true if signer is contained

getKeyType

public final int getKeyType(java.lang.String name)

Description copied from interface: Signer

Checks the key type of the given alias

Specified by:

getKeyType in interface Signer

Returns:

KEY_NONE,KEY_RSA,KEY_DSA

generateKey

public final java.security.PublicKey generateKey(java.lang.String alias)
                                          throws UserCancellationException

Description copied from interface: Signer

Creates a new KeyPair, stores the PrivateKey using the given alias and returns the PublicKey.

Specified by:

generateKey in interface Signer

Returns:

Generated PublicKey

Throws:

UserCancellationException

generateKey

public java.security.PublicKey generateKey()
                                    throws UserCancellationException

Description copied from interface: Signer

Creates a new KeyPair, stores the PrivateKey using the base32 sha1 of the public key as it's alias and returns the PublicKey.

Specified by:

generateKey in interface Signer

Returns:

Generated PublicKey

Throws:

UserCancellationException

getPublicKey

public final java.security.PublicKey getPublicKey(java.lang.String name)
                                           throws NonExistingSignerException

Specified by:

getPublicKey in interface PublicKeySource

Throws:

NonExistingSignerException

sign

public byte[] sign(byte[] data,
                   SetPublicKeyCallBack callback)
            throws UserCancellationException

Specified by:

sign in interface BrowsableSigner

Throws:

UserCancellationException

sign

public byte[] sign(java.lang.String name,
                   char[] pass,
                   byte[] data,
                   SetPublicKeyCallBack callback)
            throws InvalidPassphraseException

Specified by:

sign in interface BrowsableSigner

Throws:

InvalidPassphraseException

createKeyPair

public void createKeyPair(java.lang.String alias,
                          char[] passphrase)
                   throws CryptoException

Specified by:

createKeyPair in interface BrowsableSigner

Throws:

CryptoException

getAgent

public InteractiveAgent getAgent()

save

public void save()

Specified by:

save in interface Signer

save

public void save(boolean force)
          throws java.io.IOException,
                 UserCancellationException

Throws:

java.io.IOException

UserCancellationException

iterator

public java.util.Iterator iterator()
                            throws java.security.KeyStoreException

Specified by:

iterator in interface BrowsableSigner

Throws:

java.security.KeyStoreException