java-jquery密码强度校验

/** * */ package com.util; import java.io.UnsupportedEncodingException; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import org.apache.commons.codec.binary.Base64; import org.apache.commons.codec.binary.Hex; /** * @author Administrator * */ public class MessageDigestUtil { /** * 先进行MD5摘要再进行Base64编码获取摘要字符串 * * @param str * @return */ public static String base64AndMD5(String str) { if (str == null) { throw new IllegalArgumentException("inStr can not be null"); } return base64AndMD5(toBytes(str)); } /** * 先进行MD5摘要再进行Base64编码获取摘要字符串 * * @return */ public static String base64AndMD5(byte[] bytes) { if (bytes == null) { throw new IllegalArgumentException("bytes can not be null"); } try { final MessageDigest md = MessageDigest.getInstance("MD5"); md.reset(); md.update(bytes); final Base64 base64 = new Base64(); final byte[] enbytes = base64.encode(md.digest()); return new String(enbytes); } catch (final NoSuchAlgorithmException e) { throw new IllegalArgumentException("unknown algorithm MD5"); } } /** * UTF-8编码转换为ISO-9959-1 * * @param str * @return */ public static String utf8ToIso88591(String str) { if (str == null) { return str; } try { return new String(str.getBytes("UTF-8"), "ISO-8859-1"); } catch (UnsupportedEncodingException e) { throw new RuntimeException(e.getMessage(), e); } } /** * ISO-9959-1编码转换为UTF-8 * * @param str * @return */ public static String iso88591ToUtf8(String str) { if (str == null) { return str; } try { return new String(str.getBytes("ISO-8859-1"), "UTF-8"); } catch (UnsupportedEncodingException e) { throw new RuntimeException(e.getMessage(), e); } } /** * String转换为字节数组 * * @param str * @return */ private static byte[] toBytes(final String str) { if (str == null) { return null; } try { return str.getBytes("UTF-8"); } catch (final UnsupportedEncodingException e) { throw new RuntimeException(e.getMessage(), e); } } /** * @Title: generate * @Description: 加盐MD5 * @author lzg * @date 2018-6-9 下午3:32:54 * @return String * @throws */ public static String generate(String salt,String password) { return md5Hex(salt + password); /* password = md5Hex(salt + password); char[] cs = new char[48]; for (int i = 0; i < 48; i += 3) { cs[i] = password.charAt(i / 3 * 2); char c = salt.charAt(i / 3); cs[i + 1] = c; cs[i + 2] = password.charAt(i / 3 * 2 + 1); } return new String(cs);*/ } /** * @Title: md5Hex * @Description: 获取十六进制字符串形式的MD5摘要 * @author lzg * @date 2018-6-11 上午11:03:52 * @return String * @throws */ private static String md5Hex(String str) { try { MessageDigest md5 = MessageDigest.getInstance("MD5"); byte[] bs = md5.digest(str.getBytes()); return new String(new Hex().encode(bs)); } catch (Exception e) { return null; } } /** * @Title: base64Decode * @Description: base64解码 * @author lzg * @date 2018-6-11 下午02:23:34 * @return String * @throws */ public static String base64Decode(String str){ final Base64 base64 = new Base64(); try { return new String(base64.decode(str),"UTF-8"); } catch (UnsupportedEncodingException e) { // TODO Auto-generated catch block e.printStackTrace(); } return null; } /** * @Title: base64Eecode * @Description: base64编码 * @author lzg * @date 2018-6-11 下午02:23:52 * @return String * @throws */ public static String base64Encode(String str){ final Base64 base64 = new Base64(); try { byte [] array = str.getBytes("UTF-8"); return base64.encodeToString(array); } catch (UnsupportedEncodingException e) { // TODO Auto-generated catch block e.printStackTrace(); } return null; } /** * @Title: checkStrong * @Description: 检查密码强度 * @author lzg * @date 2018-6-11 上午11:05:41 * @return int * @throws */ public static int checkStrong(String pwd){ if (pwd.length() < 8 || pwd.length() > 25){ return -1;//密码不符合要求 } int modes = 0; for (int i = 0; i < pwd.length(); i++) { //密码模式 modes |= charMode(pwd.charAt(i)); } return bitTotal(modes); } /** * @Title: checkPwd * @Description: 检查密码是否相等 * @author lzg * @date 2018-6-11 上午11:11:17 * @return boolean * @throws */ public static boolean checkPwd(String pwd1,String pwd2){ if(pwd1.length() <= 25){ return MD5.MD5Encode(pwd1).equals(pwd2); } return pwd1.substring(32).equals(pwd2); } /** * @Title: bitTotal * @Description: 密码强度等级 * @author lzg * @date 2018-6-11 上午11:06:03 * @return int * @throws */ private static int bitTotal (int num) { int modes = 0; for (int i = 0; i < 4; i++) { if((num & 1) == 1){ modes++; } num >>>= 1; } return modes; } /** * @Title: charMode * @Description: 判断密码类型 * @author lzg * @date 2018-6-11 上午11:06:14 * @return int * @throws */ private static int charMode(int iN){ if (iN >= 48 && iN <= 57){ //数字 return 1; }else if(iN >= 65 && iN <= 90){ //大写 return 2; }else if(iN >= 97 && iN <= 122){ //小写 return 4; }else{ return 8; } } }