Blowfish.java

package cryptography.ciphers.blowfish;

import java.security.GeneralSecurityException;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import cryptography.Mode;

public class Blowfish {

	public static void main(String[] args) {
	}

	public static String blowfish(String input, Mode mode, String key) {
		String output = "";
		
		org.apache.commons.codec.binary.Base64 base64 = new org.apache.commons.codec.binary.Base64();
		byte[] keyBytes = key.getBytes();
		SecretKeySpec secretKeySpec = new SecretKeySpec(keyBytes, "Blowfish");
		
		if (mode == Mode.ENCRYPT) {
			try {
				Cipher cipher = Cipher.getInstance("Blowfish");
				cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec);
				output = base64.encodeToString(cipher.doFinal(input.getBytes()));
			} catch (GeneralSecurityException e) {
				e.printStackTrace();
			}
		}
		
		if (mode == Mode.DECRYPT) {
			try {
				Cipher cipher = Cipher.getInstance("Blowfish");
				cipher.init(Cipher.DECRYPT_MODE, secretKeySpec);
				output = new String(cipher.doFinal(base64.decode(input.getBytes())));
			} catch (GeneralSecurityException e) {
				e.printStackTrace();
			}
		}
		
		return output;
	}

}