de.alpharogroup.crypto.key.writer

Class EncryptedPrivateKeyWriter

java.lang.Object

de.alpharogroup.crypto.key.writer.EncryptedPrivateKeyWriter

public final class EncryptedPrivateKeyWriter
extends Object

The class EncryptedPrivateKeyWriter is a utility class for write and protect PrivateKey objects with a password to files.

Author:

Asterios Raptis

Constructor Summary

Constructors

Constructor and Description
EncryptedPrivateKeyWriter()

Method Summary

Modifier and Type	Method and Description
static void	encryptPrivateKeyWithPassword(PrivateKey privateKey, File file, String password) Encrypt the given PrivateKey with the given password and write the result to the given File.
static void	encryptPrivateKeyWithPassword(PrivateKey privateKey, @NonNull OutputStream outputStream, String password) Encrypt the given PrivateKey with the given password and write the result to the given OutputStream.
static byte[]	encryptPrivateKeyWithPassword(PrivateKey privateKey, String password) Encrypt the given PrivateKey with the given password and return the resulted byte array.

Methods inherited from class java.lang.Object

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

Constructor Detail

EncryptedPrivateKeyWriter

public EncryptedPrivateKeyWriter()

Method Detail

encryptPrivateKeyWithPassword

public static byte[] encryptPrivateKeyWithPassword(PrivateKey privateKey,
                                                   String password)
                                            throws NoSuchAlgorithmException,
                                                   InvalidKeySpecException,
                                                   NoSuchPaddingException,
                                                   InvalidKeyException,
                                                   InvalidAlgorithmParameterException,
                                                   IllegalBlockSizeException,
                                                   BadPaddingException,
                                                   InvalidParameterSpecException,
                                                   IOException

Encrypt the given PrivateKey with the given password and return the resulted byte array.

Parameters:

privateKey - the private key to encrypt

password - the password

Returns:

the byte[]

Throws:

NoSuchAlgorithmException - is thrown if instantiation of the SecretKeyFactory object fails.

InvalidKeySpecException - is thrown if generation of the SecretKey object fails.

NoSuchPaddingException - the no such padding exception

InvalidKeyException - is thrown if initialization of the cipher object fails

InvalidAlgorithmParameterException - is thrown if initialization of the cypher object fails.

IllegalBlockSizeException - the illegal block size exception

BadPaddingException - the bad padding exception

InvalidParameterSpecException - the invalid parameter spec exception

IOException - Signals that an I/O exception has occurred.

encryptPrivateKeyWithPassword

public static void encryptPrivateKeyWithPassword(PrivateKey privateKey,
                                                 @NonNull
                                                 @NonNull OutputStream outputStream,
                                                 String password)
                                          throws NoSuchAlgorithmException,
                                                 InvalidKeySpecException,
                                                 NoSuchPaddingException,
                                                 InvalidKeyException,
                                                 InvalidAlgorithmParameterException,
                                                 IllegalBlockSizeException,
                                                 BadPaddingException,
                                                 InvalidParameterSpecException,
                                                 IOException

Encrypt the given PrivateKey with the given password and write the result to the given OutputStream.

Parameters:

privateKey - the private key to encrypt

outputStream - the output stream

password - the password

Throws:

NoSuchAlgorithmException - is thrown if instantiation of the SecretKeyFactory object fails.

InvalidKeySpecException - is thrown if generation of the SecretKey object fails.

NoSuchPaddingException - the no such padding exception

InvalidKeyException - is thrown if initialization of the cipher object fails

InvalidAlgorithmParameterException - is thrown if initialization of the cypher object fails.

IllegalBlockSizeException - the illegal block size exception

BadPaddingException - the bad padding exception

InvalidParameterSpecException - the invalid parameter spec exception

IOException - Signals that an I/O exception has occurred.

encryptPrivateKeyWithPassword

public static void encryptPrivateKeyWithPassword(PrivateKey privateKey,
                                                 File file,
                                                 String password)
                                          throws NoSuchAlgorithmException,
                                                 InvalidKeySpecException,
                                                 NoSuchPaddingException,
                                                 InvalidKeyException,
                                                 InvalidAlgorithmParameterException,
                                                 IllegalBlockSizeException,
                                                 BadPaddingException,
                                                 InvalidParameterSpecException,
                                                 IOException

Encrypt the given PrivateKey with the given password and write the result to the given File.

Parameters:

privateKey - the private key to encrypt

file - the file

password - the password

Throws:

NoSuchAlgorithmException - is thrown if instantiation of the SecretKeyFactory object fails.

InvalidKeySpecException - is thrown if generation of the SecretKey object fails.

NoSuchPaddingException - the no such padding exception

InvalidKeyException - is thrown if initialization of the cipher object fails

InvalidAlgorithmParameterException - is thrown if initialization of the cypher object fails.

IllegalBlockSizeException - the illegal block size exception

BadPaddingException - the bad padding exception

InvalidParameterSpecException - the invalid parameter spec exception

IOException - Signals that an I/O exception has occurred