IT. Expert System.

public class DigitalSignature
extends Object

• Constructor Summary

  Constructors

  Constructor and Description
  DigitalSignature(String authType) Create Signature type

• Method Summary

  Methods

  Modifier and Type	Method and Description
  void	init(Certificate cert) Initiate Signature type by certificate
  void	init(PrivateKey key) Initiate Signature type by private key
  void	setMD5(byte[] data) Sets MD5 hash
  void	setSHA(byte[] data) Sets SHA hash
  byte[]	sign() Sign hash
  void	update(byte[] data) Update Signature hash
  boolean	verifySignature(byte[] data) Verifies the signature data.

  • Methods inherited from class java.lang.Object

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

• Constructor Detail

  • DigitalSignature

    public DigitalSignature(String authType)

    Create Signature type

    Parameters:

    keyExchange -

• Method Detail

  • init

    public void init(PrivateKey key)

    Initiate Signature type by private key

    Parameters:

    key -

  • init

    public void init(Certificate cert)

    Initiate Signature type by certificate

    Parameters:

    cert -

  • update

    public void update(byte[] data)

    Update Signature hash

    Parameters:

    data -

  • setMD5

    public void setMD5(byte[] data)

    Sets MD5 hash

    Parameters:

    data -

  • setSHA

    public void setSHA(byte[] data)

    Sets SHA hash

    Parameters:

    data -

  • sign

    public byte[] sign()

    Sign hash

    Returns:

    Signature bytes

  • verifySignature

    public boolean verifySignature(byte[] data)

    Verifies the signature data.

    Parameters:

    data - - the signature bytes

    Returns:

    true if verified