java中的小类型!

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  话不多说,先放上代码,一共有两个文件:AES.php(aes算法类文件)和aesDemo.php(应用实例文件),这里只贴出aesDemo.php,其他的看附件吧!

  aesDemo.php:

  例子,

  代码如下

  require_once('./AES.php');

  //$aes = new AES();

  $aes = new AES(true);// 把加密后的字符串按十六进制进行存储

  //$aes = new AES(true,true);// 带有调试信息且加密字符串按十六进制存储

  $key = "this is a 32 byte key";// 密钥

  $keys = $aes->makeKey($key);

  $encode = "123456";// 被加密的字符串

  $ct = $aes->encryptString($encode, $keys);

  echo "encode = ".$ct."

  ";

  $cpt = $aes->decryptString($ct, $keys);

  echo "decode = ".$cpt;

  ?>

  例子、AES加密类

  代码如下

  //php aes加密类

  class AESMcrypt {

  public $iv = null;

  public $key = null;

  public $bit = 128;

  private $cipher;

  public function __construct($bit, $key, $iv, $mode) {

  if(empty($bit) || empty($key) || empty($iv) || empty($mode))

  return NULL;

  $this->bit = $bit;

  $this->key = $key;

  $this->iv = $iv;

  $this->mode = $mode;

  switch($this->bit) {

  case 192:$this->cipher = MCRYPT_RIJNDAEL_192; break;

  case 256:$this->cipher = MCRYPT_RIJNDAEL_256; break;

  default: $this->cipher = MCRYPT_RIJNDAEL_128;

  } // www.111cn.net

  switch($this->mode) {

  case 'ecb':$this->mode = MCRYPT_MODE_ECB; break;

  case 'cfb':$this->mode = MCRYPT_MODE_CFB; break;

  case 'ofb':$this->mode = MCRYPT_MODE_OFB; break;

  case 'nofb':$this->mode = MCRYPT_MODE_NOFB; break;

  default: $this->mode = MCRYPT_MODE_CBC;

  }

  }

  public function encrypt($data) {

  $data = base64_encode(mcrypt_encrypt( $this->cipher, $this->key, $data, $this->mode, $this->iv));

  return $data;

  }

  public function decrypt($data) {

  $data = mcrypt_decrypt( $this->cipher, $this->key, base64_decode($data), $this->mode, $this->iv);

  $data = rtrim(rtrim($data), "..");

  return $data;

  }

  }

  //使用方法

  $aes = new AESMcrypt($bit = 128, $key = 'abcdef1234567890', $iv = '0987654321fedcba', $mode = 'cbc');

  $c = $aes->encrypt('haowei.me');

  var_dump($aes->decrypt($c));

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