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/**
 * The MIT License
 *
 * Copyright (C) 2015 Asterios Raptis
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package de.alpharogroup.crypto;

import de.alpharogroup.crypto.algorithm.AesAlgorithm;
import de.alpharogroup.crypto.algorithm.HashAlgorithm;
import de.alpharogroup.crypto.algorithm.KeyPairGeneratorAlgorithm;
import de.alpharogroup.crypto.algorithm.MacAlgorithm;
import de.alpharogroup.crypto.algorithm.MdAlgorithm;
import de.alpharogroup.crypto.algorithm.SunJCEAlgorithm;
import de.alpharogroup.crypto.mechanisms.PBEMechanism;
import de.alpharogroup.crypto.pw.PasswordHashType;

/**
 * The abstract class {@link CryptConst} that holds constants for Crypto object.
 *
 * @version 1.0
 * @author Asterios Raptis
 */
public abstract class CryptConst
{

	/** The Constant AND. */
	public static final String AND = "And";

	/**
	 * Constant for the utf-8 encoding.
	 */
	public static final String ENCODING = "UTF8";

	/**
	 * Constant for the iteration count.
	 */
	public static final int ITERATIONCOUNT = 19;

	/** The Constant PBE. */
	public static final String PBE = PBEMechanism.PBE.name();

	/** The Constant WITH. */
	public static final String WITH = "With";

	/** The Constant PBE_WITH. */
	public static final String PBE_WITH = PBE + WITH;

	/**
	 * Constant for the algorithm 'PBEWithMD5AndAES' to encrypt and decrypt.
	 */
	public static final String PBE_WITH_MD5_AND_AES = PBE_WITH + MdAlgorithm.MD5.name() + AND
		+ AesAlgorithm.AES.name();

	/**
	 * Constant for the algorithm 'PBEWithMD5AndDES' to encrypt and decrypt.
	 */
	public static final String PBE_WITH_MD5_AND_DES = PBE_WITH + MdAlgorithm.MD5.name() + AND
		+ SunJCEAlgorithm.DES.name();

	/**
	 * Constant for the algorithm 'PBEWITHSHA1AND128BITAES-CBC-BC' to encrypt and decrypt.
	 */
	public static final String PBE_WITH_SHA1_AND_128BIT_AES_CBC_BC = "PBEWITHSHA1AND128BITAES-CBC-BC";

	/**
	 * Constant for the algorithm 'PBEWithSHA1AndDESede' to encrypt and decrypt.
	 */
	public static final String PBE_WITH_SHA1_AND_DES_EDE = PBE_WITH + HashAlgorithm.SHA1.name()
		+ AND + SunJCEAlgorithm.DESede.name();

	/** The Constant PBKDF2. */
	public static final String PBKDF2 = PasswordHashType.PBKDF2.name();

	/**
	 * Constant for the algorithm 'PBKDF2WithHmacSHA1' to encrypt and decrypt.
	 */
	public static final String PBKDF2_WITH_HMAC_SHA1 = PBKDF2 + WITH + MacAlgorithm.HMAC
		+ HashAlgorithm.SHA1.name();

	/**
	 * Constant for the private key.
	 */
	public static final String PRIVATE_KEY = "privattop secret";

	/**
	 * Constant array for the contents of salt.
	 */
	public static final byte[] SALT = { (byte)0xA9, (byte)0x9B, (byte)0xC8, (byte)0x32, (byte)0x56,
			(byte)0x35, (byte)0xE3, (byte)0x03 };

	/** Constant for algorithm 'SHA256withRSA' to encrypt and decrypt. */
	public static final String SHA256_WITH_RSA = HashAlgorithm.SHA256.getAlgorithm()
		+ CryptConst.WITH.toLowerCase() + KeyPairGeneratorAlgorithm.RSA.getAlgorithm();

	/**
	 * Constant for the initialization from SimpleDecryptor.
	 */
	public static final String SIMPLE_DECRYPTOR = "SimpleDecryptor";

	/**
	 * Constant for the initialization from SimpleEncryptor.
	 */
	public static final String SIMPLE_ENCRYPTOR = "SimpleEncryptor";

}