[PHP]AES加密----PHP服务端和Android客户端
内容导读
互联网集市收集整理的这篇技术教程文章主要介绍了[PHP]AES加密----PHP服务端和Android客户端，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含4503字，纯文字阅读大概需要7分钟。
内容图文
本文采取128位AES-CBC模式加密和解密
1.首先对服务端安装mcrypt：
sudo apt-get install php5-mcrypt php5-dev
sudo php5enmod mcrypt
sudo service apache2 restart
2.PHP服务端AES加密类代码
class MCrypt
{
private $iv = ‘fedcba9876543210‘; //初始化向量iv
public $key;//AES加密的密钥key
//将密钥$key传进本类
function __construct($key)
{
$this->key=$key;
}
//加密
function encrypt($str) {
//$key = $this->hex2bin($key);
$iv = $this->iv;
$td = mcrypt_module_open(‘rijndael-128‘, ‘‘, ‘cbc‘, $iv);
mcrypt_generic_init($td, $this->key, $iv);
$encrypted = mcrypt_generic($td, $str);
\OCP\Util::writeLog(‘***MCrypt $key***‘, $this->key, \OCP\Util::ERROR);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return bin2hex($encrypted);
}
//解密
function decrypt($code) {
//$key = $this->hex2bin($key);
$code = $this->hex2bin($code);
$iv = $this->iv;
$td = mcrypt_module_open(‘rijndael-128‘, ‘‘, ‘cbc‘, $iv);
mcrypt_generic_init($td, $this->key, $iv);
$decrypted = mdecrypt_generic($td, $code);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return utf8_encode(trim($decrypted));
}
protected function hex2bin($hexdata) {
$bindata = ‘‘;
for ($i = 0; $i < strlen($hexdata); $i += 2) {
$bindata .= chr(hexdec(substr($hexdata, $i, 2)));
}
return $bindata;
}
}
4.PHP服务端调用ASE加密类代码：
$key="";//自己添加AES密钥
//将加密的key传进AES类$mcrypt = new MCrypt($key);
//对数据库中的密码进行AES加密$psw = $mcrypt->encrypt();
5.Android服务端AES解密代码：
在Android中创建一个AESUtil类，需要用时调用
/**
* AES解密：
* 对服务器发回来的密码进行解密
*
*/
import
java.io.UnsupportedEncodingException;
import
java.security.MessageDigest;
import
java.security.NoSuchAlgorithmException;
import
javax.crypto.Cipher;
import
javax.crypto.NoSuchPaddingException;
import
javax.crypto.spec.IvParameterSpec;
import
javax.crypto.spec.SecretKeySpec;
import
com.pcloud.android.ui.activity.FirstAuthenActivity;
public
class
AESUtil {
private String iv = "fedcba9876543210";//虚拟的 iv。和服务端要保持一致private IvParameterSpec ivspec;
private SecretKeySpec keyspec;
private Cipher cipher;
// private String SecretKey = "";//虚拟的 密钥
String msgToken=FirstAuthenActivity.msgToken;
//String msgUrl=FirstAuthenActivity.msgUrl;
String msgRandom=FirstAuthenActivity.msgRandom;
//把随机数和tokenid进行MD5操作来作为AES密钥，和服务端的AES加密密钥要保持一致
String SecretKey=stringToMD5(msgToken+msgRandom);
public AESUtil()
{
ivspec = new IvParameterSpec(iv.getBytes());
keyspec = new SecretKeySpec(SecretKey.getBytes(), "AES");
try {
cipher = Cipher.getInstance("AES/CBC/NoPadding");
} catch (NoSuchAlgorithmException e) {
// TODO Auto-generated catch block e.printStackTrace();
} catch (NoSuchPaddingException e) {
// TODO Auto-generated catch block e.printStackTrace();
}
}
publicbyte[] encrypt(String text) throws Exception
{
if(text == null || text.length() == 0)
thrownew Exception("Empty string");
byte[] encrypted = null;
try {
cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec);
encrypted = cipher.doFinal(padString(text).getBytes());
} catch (Exception e)
{
thrownew Exception("[encrypt] " + e.getMessage());
}
return encrypted;
}
publicbyte[] decrypt(String code) throws Exception
{
if(code == null || code.length() == 0)
thrownew Exception("Empty string");
byte[] decrypted = null;
try {
cipher.init(Cipher.DECRYPT_MODE, keyspec, ivspec);
decrypted = cipher.doFinal(hexToBytes(code));
} catch (Exception e)
{
thrownew Exception("[decrypt] " + e.getMessage());
}
return decrypted;
}
publicstatic String bytesToHex(byte[] data)
{
if (data==null)
{
returnnull;
}
int len = data.length;
String str = "";
for (int i=0; i<len; i++) {
if ((data[i]&0xFF)<16)
str = str + "0" + java.lang.Integer.toHexString(data[i]&0xFF);
else
str = str + java.lang.Integer.toHexString(data[i]&0xFF);
}
return str;
}
publicstaticbyte[] hexToBytes(String str) {
if (str==null) {
returnnull;
} elseif (str.length() < 2) {
returnnull;
} else {
int len = str.length() / 2;
byte[] buffer = newbyte[len];
for (int i=0; i<len; i++) {
buffer[i] = (byte) Integer.parseInt(str.substring(i*2,i*2+2),16);
}
return buffer;
}
}
privatestatic String padString(String source)
{
char paddingChar = ‘ ‘;
int size = 16;
int x = source.length() % size;
int padLength = size - x;
for (int i = 0; i < padLength; i++)
{
source += paddingChar;
}
return source;
}
6.Android客户端调用AES类进行解密：
//
调用AES解密
AESUtil mcrypt;
mcrypt = new AESUtil();
try {
//对收到的密码进行AES解密
String decrypted = new String( mcrypt.decrypt( rec[1]) );
Log.d("解密的：",decrypted);
} catch (Exception e) {
// TODO 自动生成的 catch 块 e.printStackTrace();
}
原文：http://www.cnblogs.com/liangxuehui/p/4651322.html
内容总结
以上是互联网集市为您收集整理的[PHP]AES加密----PHP服务端和Android客户端全部内容，希望文章能够帮你解决[PHP]AES加密----PHP服务端和Android客户端所遇到的程序开发问题。 如果觉得互联网集市技术教程内容还不错，欢迎将互联网集市网站推荐给程序员好友。
内容备注
版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 gblab@vip.qq.com 举报，一经查实，本站将立刻删除。
内容手机端
扫描二维码推送至手机访问。
来源：【匿名】