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php中AES加密解密的例子小结
来源:互联网   发布日期:2016-03-01 14:02:08   浏览:1490次  

导读: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)aesDemo.php:例子,代码如下:<?phprequir...

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)

aesDemo.php:

例子,

代码如下:

<?php

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."<br>";

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

echo "decode = ".$cpt;

?>

例子、AES加密类

代码如下:

<?php

//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;

}

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), "..

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