net.sourceforge.jcetaglib.lib
Class Macs

java.lang.Object
  net.sourceforge.jcetaglib.lib.Macs

public class Macs

extends java.lang.Object

Create MACs (Message Authentication Code) with the BouncyCastle JCE provider

Version:

$Id: Macs.java,v 1.3 2004/04/15 07:28:25 hamgert Exp $

Author:

Gert Van Ham, hamgert@users.sourceforge.net, http://jcetaglib.sourceforge.net

Constructor Summary

Macs()

Method Summary

static java.lang.StringBuffer	generateFileMAC(java.lang.String file, java.lang.String keyfile, java.lang.StringBuffer passphrase, java.lang.String algorithm, java.lang.String macname) Returns a MAC (Message Authentication Code) from a file
static void	generateMAC(java.io.InputStream is, java.io.DataOutputStream daos, java.lang.String keyfile, java.lang.StringBuffer passphrase, java.lang.String algorithm, java.lang.String macname, int bufferlength) Returns a MAC (Message Authentication Code) from any inputstream
static java.lang.StringBuffer	generateMAC(java.lang.StringBuffer text, java.lang.String keyfile, java.lang.StringBuffer passphrase, java.lang.String algorithm, java.lang.String macname) Returns a MAC (Message Authentication Code) from a text

Methods inherited from class java.lang.Object

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

Constructor Detail

Macs

public Macs()

Method Detail

generateMAC

public static java.lang.StringBuffer generateMAC(java.lang.StringBuffer text,
                                                 java.lang.String keyfile,
                                                 java.lang.StringBuffer passphrase,
                                                 java.lang.String algorithm,
                                                 java.lang.String macname)
                                          throws CryptoException

Returns a MAC (Message Authentication Code) from a text

Parameters:

text - text to create MAC from

keyfile - keyfile(name)

passphrase - the passphrase for the keystore

algorithm - encryption algorithm (e.g. "Rijndael")

macname - MAC algorithm (e.g. IDEAMac)

Returns:

the MAC in BASE64 format

Throws:

CryptoException - for all encryption errors

generateFileMAC

public static java.lang.StringBuffer generateFileMAC(java.lang.String file,
                                                     java.lang.String keyfile,
                                                     java.lang.StringBuffer passphrase,
                                                     java.lang.String algorithm,
                                                     java.lang.String macname)
                                              throws CryptoException

Returns a MAC (Message Authentication Code) from a file

Parameters:

file - file to create MAC from

keyfile - keyfile(name)

passphrase - the passphrase for the keystore

algorithm - encryption algorithm (e.g. "Rijndael")

macname - MAC algorithm (e.g. IDEAMac)

Returns:

the MAC in BASE64 format

Throws:

CryptoException - for encryption errors

generateMAC

public static void generateMAC(java.io.InputStream is,
                               java.io.DataOutputStream daos,
                               java.lang.String keyfile,
                               java.lang.StringBuffer passphrase,
                               java.lang.String algorithm,
                               java.lang.String macname,
                               int bufferlength)
                        throws CryptoException,
                               java.io.IOException

Returns a MAC (Message Authentication Code) from any inputstream

Parameters:

is - any inputstream to generate HMAC from

daos - returns MAC code string outputstream

keyfile - keyfile(name)

passphrase - the passphrase for the keystore

algorithm - encryption algorithm (e.g. "Rijndael")

macname - MAC algorithm (e.g. IDEAMac)

Throws:

java.io.IOException - I/O errors

CryptoException - for all encryption errors