net.sourceforge.jcetaglib.lib
Class Asymmetric

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

public class Asymmetric

extends java.lang.Object

Asymmetric encryption & decryption routines with BouncyCastle JCE provider

Version:

$Id: Asymmetric.java,v 1.3 2004/04/15 07:28:24 hamgert Exp $

Author:

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

Constructor Summary

Asymmetric()

Method Summary

static void	decrypt(java.io.InputStream is, java.io.DataOutputStream daos, java.security.PrivateKey decryptKey, int bufferlength) Decrypts an inputstream, encrypted with an RSA public key (from X.509), with the corresponding private key
static java.lang.StringBuffer	decrypt(java.lang.StringBuffer text, java.security.PrivateKey decryptKey) decrypts text with a private RSA key (from a X.509 certificate)
static void	encrypt(java.io.InputStream is, java.io.DataOutputStream daos, java.security.PublicKey encryptKey, int bufferlength) Encrypts an inputstream with a public RSA key (from a X.509 certificate) This result can only be decrypted with the corresponding private key
static java.lang.StringBuffer	encrypt(java.lang.StringBuffer text, java.security.PublicKey encryptKey) Encrypts text with a public RSA key (from a X.509 certificate)

Methods inherited from class java.lang.Object

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

Constructor Detail

Asymmetric

public Asymmetric()

Method Detail

encrypt

public static java.lang.StringBuffer encrypt(java.lang.StringBuffer text,
                                             java.security.PublicKey encryptKey)
                                      throws CryptoException

Encrypts text with a public RSA key (from a X.509 certificate)

Parameters:

text - the text to encrypt

encryptKey - the public encryption key

Returns:

the encrypted text in BASE64 format

Throws:

CryptoException - for encryption errors

encrypt

public static void encrypt(java.io.InputStream is,
                           java.io.DataOutputStream daos,
                           java.security.PublicKey encryptKey,
                           int bufferlength)
                    throws CryptoException,
                           java.io.IOException

Encrypts an inputstream with a public RSA key (from a X.509 certificate) This result can only be decrypted with the corresponding private key

Parameters:

is - the inputstream to encrypt

daos - returns ciphered outputstream

encryptKey - the public encryption key

Throws:

java.io.IOException - I/O errors

CryptoException - for all encryption errors

decrypt

public static java.lang.StringBuffer decrypt(java.lang.StringBuffer text,
                                             java.security.PrivateKey decryptKey)
                                      throws CryptoException

decrypts text with a private RSA key (from a X.509 certificate)

Parameters:

text - the text to decrypt

decryptKey - the private key

Returns:

the encrypted text in BASE64 format

Throws:

CryptoException - for encryption errors

decrypt

public static void decrypt(java.io.InputStream is,
                           java.io.DataOutputStream daos,
                           java.security.PrivateKey decryptKey,
                           int bufferlength)
                    throws CryptoException,
                           java.io.IOException

Decrypts an inputstream, encrypted with an RSA public key (from X.509), with the corresponding private key

Parameters:

is - the inputstream to decrypt

daos - returns deciphered outputstream

decryptKey - the private key

Throws:

java.io.IOException - I/O errors

CryptoException - for all encryption errors