cn.dreampie.common.util.security.EncriptionUtils Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jfinal-dreampie Show documentation

jfinal shiro-freemarker plugins

There is a newer version: 1.2.2

/**
 *  2012-5-25 下午4:59:05
 * @create_user wangrenhui
 * @whattodo
 * @modify_time like:date1/date2
 * @modify_user like:user1/user2
 * @modify_content like:content1/content2
 */
package cn.dreampie.common.util.security;

import java.security.MessageDigest;

/**
 * @author wangrenhui
 *         加密工具
 *         2012-5-25 下午4:59:05
 */
public class EncriptionUtils {
  /**
   * md5加密
   *
   * @param srcStr input string
   * @return output encription string
   */
  public static final String encrypt(String srcStr) {
    try {
      String result = "";
      MessageDigest md = MessageDigest.getInstance("MD5");
      byte[] bytes = md.digest(srcStr.getBytes("utf-8"));
      for (byte b : bytes) {
        String hex = Integer.toHexString(b & 0xFF).toUpperCase();
        result += ((hex.length() == 1) ? "0" : "") + hex;
      }
      return result;
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }


  /**
   * 字符串转换为16进制
   *
   * @param s hex string
   * @return end string
   */
  public static String toHexString(String s) {
    String str = "";
    for (int i = 0; i < s.length(); i++) {
      int ch = (int) s.charAt(i);
      str += Integer.toHexString(ch);
    }
    return str;
  }

  /**
   * Text加密
   *
   * @param text text
   * @param salt salt
   * @return string
   */
  public static String textEncrypt(String text, String salt) {
    try {
      EncryptionTextUtils textEncryptor = new EncryptionTextUtils(salt);
      String result = textEncryptor.encrypt(text);
      return result;
    } catch (Exception e) {
      e.printStackTrace();
      return null;
    }
  }

  /**
   * Text解密
   *
   * @param text encription string
   * @param salt salt
   * @return string
   */
  public static String textDecrypt(String text, String salt) {
    try {
      EncryptionTextUtils textEncryptor = new EncryptionTextUtils(salt);
      String result = textEncryptor.decrypt(text);
      return result;
    } catch (Exception e) {
      e.printStackTrace();
      return null;
    }
  }

}