RSANoPadding加密

import java.math.BigInteger;
import java.security.InvalidKeyException;
import java.security.KeyFactory;
import java.security.NoSuchAlgorithmException;
import java.security.PublicKey;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.RSAPublicKeySpec;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;

/**
 * RSA NO Padding加密
 * @author JiangZhongke
 *
 */
public class RSAUtil {
	/**
	 * 获取SequryData 待加密数据
	 * 
	 * @param password 密码
	 * @param validate 有效期
	 * @param cvn2 CVN2/CVV
	 * @return SequryData
	 */
	public static String setSecuryData(String password, String validate,
			String cvn2) {
		StringBuffer cod = new StringBuffer("010");
		cod.append(password.length());
		cod.append(password);
		for (int i = 0; i < 14 - password.length(); i++) {
			cod.append("F"