165 lines
4.2 KiB
Plaintext
165 lines
4.2 KiB
Plaintext
package com.bonus.sys;
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import java.security.MessageDigest;
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import java.util.Random;
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import org.apache.shiro.codec.Base64;
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import org.apache.shiro.codec.Hex;
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import org.apache.shiro.crypto.AesCipherService;
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import org.apache.shiro.crypto.SecureRandomNumberGenerator;
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import org.apache.shiro.crypto.hash.Md5Hash;
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/**
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*
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*/
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public class CipherHelper {
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private final static String[] hexDigits = { "0", "1", "2", "3", "4", "5",
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"6", "7", "8", "9", "a", "b", "c", "d", "e", "f" };
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/**
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* cipher password 加密成MD5
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* @param inputString
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* @return
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*/
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public static String generatePassword(String inputString) {
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return encodeByMD5(inputString);
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}
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/**
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* validate password
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* @param password
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* @param inputString
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* @return
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*/
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public static boolean validatePassword(String password, String inputString) {
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if (password.equals(encodeByMD5(inputString))) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* encode
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* @param originString
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* @return
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*/
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private static String encodeByMD5(String originString) {
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if (originString != null) {
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try {
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MessageDigest md = MessageDigest.getInstance("MD5");
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byte[] results = md.digest(originString.getBytes());
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String resultString = byteArrayToHexString(results);
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return resultString.toUpperCase();
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} catch (Exception ex) {
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ex.printStackTrace();
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}
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}
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return null;
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}
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/**
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* change the Byte[] to hex string
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* @param b
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* @return
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*/
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private static String byteArrayToHexString(byte[] b) {
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StringBuffer resultSb = new StringBuffer();
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for (int i = 0; i < b.length; i++) {
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resultSb.append(byteToHexString(b[i]));
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}
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return resultSb.toString();
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}
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/**
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* change a byte to hex string
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*
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* @param b
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* @return
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*/
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private static String byteToHexString(byte b) {
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int n = b;
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if (n < 0)
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n = 256 + n;
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int d1 = n / 16;
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int d2 = n % 16;
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return hexDigits[d1] + hexDigits[d2];
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}
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/**
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* base64进制加密
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*
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* @param password
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* @return
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*/
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public static String encrytBase64(String str) {
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return Base64.encodeToString(str.getBytes());
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}
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/**
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* base64进制解密
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* @param cipherText
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* @return
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*/
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public static String decryptBase64(String str) {
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return Base64.decodeToString(str);
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}
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/**
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* 16进制加密
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*
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* @param str
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* @return
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*/
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public static String encrytHex(String str) {
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return Hex.encodeToString(str.getBytes());
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}
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/**
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* 16进制解密
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* @param cipherText
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* @return
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*/
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public static String decryptHex(String str) {
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return new String(Hex.decode(str));
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}
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public static String generateKey() {
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AesCipherService aesCipherService=new AesCipherService();
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return Base64.encodeToString(aesCipherService.generateNewKey().getEncoded());
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}
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/**
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* 生成盐
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* @return
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*/
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public static String createSalt(){
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return (new SecureRandomNumberGenerator()).nextBytes().toHex();
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}
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/**
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* 组合username,两次迭代，对密码进行加密
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* @param username 用户名
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* @param password 密码
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* @param salt 盐
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* @return
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*/
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public static String createPwdEncrypt(String username,String password,String salt){
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return new Md5Hash(password,username+salt,2).toBase64();
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}
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/**
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* 生成随机数字和字母
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* @param length 生成长度
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* @return
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*/
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public static String createRandomString(int length) {
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String val = "";
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Random random = new Random();
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//参数length，表示生成几位随机数
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for(int i = 0; i < length; i++) {
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String charOrNum = random.nextInt(2) % 2 == 0 ? "char" : "num";
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//输出字母还是数字
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if( "char".equalsIgnoreCase(charOrNum) ) {
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//输出是大写字母还是小写字母
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int temp = random.nextInt(2) % 2 == 0 ? 65 : 97;
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val += (char)(random.nextInt(26) + temp);
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} else if( "num".equalsIgnoreCase(charOrNum) ) {
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val += String.valueOf(random.nextInt(10));
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}
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}
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return val;
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}
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} |