登录与注册的加密
//Utils类
package com.bwei.utils; import java.security.Key; import java.security.MessageDigest; import java.security.spec.AlgorithmParameterSpec; import java.util.UUID; import javax.crypto.Cipher; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESKeySpec; import javax.crypto.spec.IvParameterSpec; /** * DES加密和解密 * MD5加密 * @author wangfei */ public class DESMD5Utils { /** * MD5加密 * @param str * @param isUp * true是否大写 * @return */ public String MD5(String str, boolean isUp) { MessageDigest md5 = null; try { md5 = MessageDigest.getInstance("MD5"); } catch (Exception e) { e.printStackTrace(); return ""; } char[] charArray = str.toCharArray(); byte[] byteArray = new byte[charArray.length]; for (int i = 0; i < charArray.length; i++) { byteArray[i] = (byte) charArray[i]; } byte[] md5Bytes = md5.digest(byteArray); StringBuffer hexValue = new StringBuffer(); for (int i = 0; i < md5Bytes.length; i++) { int val = (md5Bytes[i]) & 0xff; if (val < 16) { hexValue.append("0"); } hexValue.append(Integer.toHexString(val)); } if (isUp) { return (hexValue.toString()).toUpperCase(); } else { return hexValue.toString(); } } public String ALGORITHM_DES = "DES/CBC/PKCS5Padding"; public String DESKEY = "QpOiUnYbVp3bB73Fsn7O12CX"; /** * 默认加密方式 * * @param data * @return */ public String encrypt(String data) { String str = encrypt(DESKEY, data); return str; } /** * 默认解密方式 * @param data * @return */ public String decrypt(String data) { String str = decrypt(DESKEY, data); return str; } /** * DES算法，加密 * * @param data * 待加密字符串 * @param key * 加密私钥，长度不能够小于8位 * @return 加密后的字节数组，一般结合Base64编码使用 * @throws InvalidAlgorithmParameterException * @throws Exception */ public String encrypt(String key, String data) { if (data == null) return null; try { DESKeySpec dks = new DESKeySpec(key.getBytes()); SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); // key的长度不能够小于8位字节 Key secretKey = keyFactory.generateSecret(dks); Cipher cipher = Cipher.getInstance(ALGORITHM_DES); IvParameterSpec iv = new IvParameterSpec("12345678".getBytes()); AlgorithmParameterSpec paramSpec = iv; cipher.init(Cipher.ENCRYPT_MODE, secretKey, paramSpec); byte[] bytes = cipher.doFinal(data.getBytes()); return byte2hex(bytes); } catch (Exception e) { e.printStackTrace(); return data; } } /** * DES算法，解密 * * @param data * 待解密字符串 * @param key * 解密私钥，长度不能够小于8位 * @return 解密后的字节数组 * @throws Exception * 异常 */ public String decrypt(String key, String data) { if (data == null) return null; try { DESKeySpec dks = new DESKeySpec(key.getBytes()); SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); // key的长度不能够小于8位字节 Key secretKey = keyFactory.generateSecret(dks); Cipher cipher = Cipher.getInstance(ALGORITHM_DES); IvParameterSpec iv = new IvParameterSpec("12345678".getBytes()); AlgorithmParameterSpec paramSpec = iv; cipher.init(Cipher.DECRYPT_MODE, secretKey, paramSpec); return new String(cipher.doFinal(hex2byte(data.getBytes()))); } catch (Exception e) { e.printStackTrace(); return data; } } /** * 二行制转字符串 * * @param b * @return */ private static String byte2hex(byte[] b) { StringBuilder hs = new StringBuilder(); String stmp; for (int n = 0; b != null && n < b.length; n++) { stmp = Integer.toHexString(b[n] & 0XFF); if (stmp.length() == 1) hs.append('0'); hs.append(stmp); } return hs.toString().toUpperCase(); } private static byte[] hex2byte(byte[] b) { if ((b.length % 2) != 0) throw new IllegalArgumentException(); byte[] b2 = new byte[b.length / 2]; for (int n = 0; n < b.length; n += 2) { String item = new String(b, n, 2); b2[n / 2] = (byte) Integer.parseInt(item, 16); } return b2; } }
//加密的主类
package com.bwei.utils; import java.io.IOException; import java.io.UnsupportedEncodingException; import java.net.URLEncoder; import java.util.ArrayList; import java.util.List; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.HttpClient; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair; import org.apache.http.protocol.HTTP; import org.apache.http.util.EntityUtils; public class HttpUtils { private DESMD5Utils utils; public HttpUtils() { super(); utils = new DESMD5Utils(); } public String registerUser(String nick_name, String phone_num, String user_password) { String uri = "http://169.254.109.73:8080/MyPaoT/register"; HttpClient client = new DefaultHttpClient(); HttpPost post = new HttpPost(uri); BasicNameValuePair basicNameValuePair = null; List<BasicNameValuePair> parameters = new ArrayList<BasicNameValuePair>(); try { String string = URLEncoder.encode(nick_name,"utf-8"); String encrypt = utils.encrypt(string); basicNameValuePair = new BasicNameValuePair("nick_name", encrypt); parameters.add(basicNameValuePair); } catch (UnsupportedEncodingException e2) { // TODO Auto-generated catch block e2.printStackTrace(); } //encrypt加密 String encrypt2 = utils.encrypt(phone_num); basicNameValuePair = new BasicNameValuePair("phone_num", encrypt2); parameters.add(basicNameValuePair); String md5 = utils.MD5(user_password, false); String encrypt3 = utils.encrypt(md5); basicNameValuePair = new BasicNameValuePair("user_password", encrypt3); parameters.add(basicNameValuePair); HttpEntity entity = null; try { entity = new UrlEncodedFormEntity(parameters, HTTP.UTF_8); } catch (UnsupportedEncodingException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } post.setEntity(entity); try { HttpResponse response = client.execute(post); if (response.getStatusLine().getStatusCode() == 200) { HttpEntity entity2 = response.getEntity(); return EntityUtils.toString(entity2); } } catch (ClientProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return null; } public String loginUser(String phone_num, String user_password) { String uri = "http://169.254.109.73:8080/MyPaoT/login"; HttpClient client = new DefaultHttpClient(); HttpPost post = new HttpPost(uri); BasicNameValuePair basicNameValuePair = null; List<BasicNameValuePair> parameters = new ArrayList<BasicNameValuePair>(); String encrypt2 = utils.encrypt(phone_num); basicNameValuePair = new BasicNameValuePair("phone_num", encrypt2); parameters.add(basicNameValuePair); String md5 = utils.MD5(user_password, false); String encrypt3 = utils.encrypt(md5); basicNameValuePair = new BasicNameValuePair("user_password", encrypt3); parameters.add(basicNameValuePair); HttpEntity entity = null; try { entity = new UrlEncodedFormEntity(parameters, HTTP.UTF_8); } catch (UnsupportedEncodingException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } post.setEntity(entity); try { HttpResponse response = client.execute(post); if (response.getStatusLine().getStatusCode() == 200) { HttpEntity entity2 = response.getEntity(); return EntityUtils.toString(entity2); } } catch (ClientProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return null; } }
