encrypt加密php
① 前端使用CryptoJS AES加密 ,后端php解密问题
PHP7.1 已经不能用mcrypt了，所以我用的是openssl_encrypt和openssl_decrypt。
<?php
$data="ThisisanAEScryptdemo.";
$privateKey="";//KEY16字节用aes-128-cbc，32字节用aes-256-cbc
$iv="4490d2ded4f2d4ad";//AES的IV是16个字节
//加密
//$encrypted=openssl_encrypt($data,'aes-128-cbc',$privateKey,0,$iv);
$encrypted=openssl_encrypt($data,'aes-256-cbc',$privateKey,0,$iv);
echo$encrypted,PHP_EOL;
//解密
$encryptedData=$encrypted;
//$decrypted=openssl_decrypt($encryptedData,'aes-128-cbc',$privateKey,0,$iv);
$decrypted=openssl_decrypt($encryptedData,'aes-256-cbc',$privateKey,0,$iv);
echo($decrypted);
输出结果如下：
EPcMQRXA53/hRkPyILFI4fF/9sW2X53tLiDT26khNsA=
ThisisanAEScryptdemo.
② php aes加密～呢
AES加密算法
密码学中的高级加密标准（AdvancedEncryptionStandard，AES），又称Rijndael加密法，是美国联邦政府采用的一种区块加密标准。这个标准用来替代原先的DES，已经被多方分析且广为全世界所使用。
<?php
classCryptAES
{
protected$cipher=MCRYPT_RIJNDAEL_128;
protected$mode=MCRYPT_MODE_ECB;
protected$pad_method=NULL;
protected$secret_key='';
protected$iv='';
publicfunctionset_cipher($cipher)
{
$this->cipher=$cipher;
}
publicfunctionset_mode($mode)
{
$this->mode=$mode;
}
publicfunctionset_iv($iv)
{
$this->iv=$iv;
}
publicfunctionset_key($key)
{
$this->secret_key=$key;
}
publicfunctionrequire_pkcs5()
{
$this->pad_method='pkcs5';
}
protectedfunctionpad_or_unpad($str,$ext)
{
if(is_null($this->pad_method))
{
return$str;
}
else
{
$func_name=__CLASS__.'::'.$this->pad_method.'_'.$ext.'pad';
if(is_callable($func_name))
{
$size=mcrypt_get_block_size($this->cipher,$this->mode);
returncall_user_func($func_name,$str,$size);
}
}
return$str;
}
protectedfunctionpad($str)
{
return$this->pad_or_unpad($str,'');
}
protectedfunctionunpad($str)
{
return$this->pad_or_unpad($str,'un');
}
publicfunctionencrypt($str)
{
$str=$this->pad($str);
$td=mcrypt_mole_open($this->cipher,'',$this->mode,'');
if(empty($this->iv))
{
$iv=@mcrypt_create_iv(mcrypt_enc_get_iv_size($td),MCRYPT_RAND);
}
else
{
$iv=$this->iv;
}
mcrypt_generic_init($td,hex2bin($this->secret_key),$iv);
$cyper_text=mcrypt_generic($td,$str);
$rt=strtoupper(bin2hex($cyper_text));
mcrypt_generic_deinit($td);
mcrypt_mole_close($td);
return$rt;
}
publicfunctiondecrypt($str){
$td=mcrypt_mole_open($this->cipher,'',$this->mode,'');
if(empty($this->iv))
{
$iv=@mcrypt_create_iv(mcrypt_enc_get_iv_size($td),MCRYPT_RAND);
}
else
{
$iv=$this->iv;
}
mcrypt_generic_init($td,$this->secret_key,$iv);
//$decrypted_text=mdecrypt_generic($td,self::hex2bin($str));
$decrypted_text=mdecrypt_generic($td,base64_decode($str));
$rt=$decrypted_text;
mcrypt_generic_deinit($td);
mcrypt_mole_close($td);
return$this->unpad($rt);
}
publicstaticfunctionhex2bin($hexdata){
$bindata='';
$length=strlen($hexdata);
for($i=0;$i<$length;$i+=2)
{
$bindata.=chr(hexdec(substr($hexdata,$i,2)));
}
return$bindata;
}
publicstaticfunctionpkcs5_pad($text,$blocksize)
{
$pad=$blocksize-(strlen($text)%$blocksize);
return$text.str_repeat(chr($pad),$pad);
}
publicstaticfunctionpkcs5_unpad($text)
{
$pad=ord($text{strlen($text)-1});
if($pad>strlen($text))returnfalse;
if(strspn($text,chr($pad),strlen($text)-$pad)!=$pad)returnfalse;
returnsubstr($text,0,-1*$pad);
}
}
//密钥
$keyStr='';
//加密的字符串
$plainText='test';
$aes=newCryptAES();
$aes->set_key($keyStr);
$aes->require_pkcs5();
$encText=$aes->encrypt($plainText);
echo$encText;
?>
③ 求php aes加密代码，编码是UTF-8
$key=pack('H*',"");
//显示AES-128,192,256对应的密钥长度：
//16，24，32字节。
$key_size=strlen($key);
echo"Keysize:".$key_size." ";
$plaintext="ThisstringwasAES-256/CBC/ZeroBytePaddingencrypted.";
$iv_size=mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128,MCRYPT_MODE_CBC);
$iv=mcrypt_create_iv($iv_size,MCRYPT_RAND);$ciphertext=mcrypt_encrypt(MCRYPT_RIJNDAEL_128,$key,
$plaintext,MCRYPT_MODE_CBC,$iv);
④ 各位用php将密码存入数据库,都用什么方法进行加密的
php将密码存入数据库,可以分内常见的4种方式：
1、直接md5加密存到到数据库
2、md5两次存到数据库
3、对需要加密的字符串和一个常量 进行混淆加密
4、生成一个随机的变量存到数据库中，然后对需要加密的字符串和这个随机变量加密
<?php$str="admin"; //需要加密的字符串$str2="php"; //增加一个常量混淆 $pass1=md5($str);$pass2=md5(md5($str));$pass3=md5($str.$str2);echo $pass1."<br>".$pass2."<br>".$pass3;?>
输出：
第四种
$str="admin"; //需要加密的字符串$encrypt=$row['encrypt']; // 生成的 随机加密字符串 存到数据库中$pass4=md5($str.$encrypt);//
⑤ 如何用php做AES加密解密，编码是UTF-8，跪谢求代码
class CryptAES
{
protected $cipher = MCRYPT_RIJNDAEL_128;
protected $mode = MCRYPT_MODE_ECB;
protected $pad_method = NULL;
protected $secret_key = '';
protected $iv = '';
public function set_cipher($cipher)
{
$this->cipher = $cipher;
}
public function set_mode($mode)
{
$this->mode = $mode;
}
public function set_iv($iv)
{
$this->iv = $iv;
}
public function set_key($key)
{
$this->secret_key = $key;
}
public function require_pkcs5()
{
$this->pad_method = 'pkcs5';
}
protected function pad_or_unpad($str, $ext)
{
if ( is_null($this->pad_method) )
{
return $str;
}
else
{
$func_name = __CLASS__ . '::' . $this->pad_method . '_' . $ext . 'pad';
if ( is_callable($func_name) )
{
$size = mcrypt_get_block_size($this->cipher, $this->mode);
return call_user_func($func_name, $str, $size);
}
}
return $str;
}
protected function pad($str)
{
return $this->pad_or_unpad($str, '');
}
protected function unpad($str)
{
return $this->pad_or_unpad($str, 'un');
}
public function encrypt($str)
{
$str = $this->pad($str);
$td = mcrypt_mole_open($this->cipher, '', $this->mode, '');
if ( empty($this->iv) )
{
$iv = @mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
}
else
{
$iv = $this->iv;
}
mcrypt_generic_init($td, $this->secret_key, $iv);
$cyper_text = mcrypt_generic($td, $str);
$rt=base64_encode($cyper_text);
//$rt = bin2hex($cyper_text);
mcrypt_generic_deinit($td);
mcrypt_mole_close($td);
return $rt;
}
public function decrypt($str){
$td = mcrypt_mole_open($this->cipher, '', $this->mode, '');
if ( empty($this->iv) )
{
$iv = @mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
}
else
{
$iv = $this->iv;
}
mcrypt_generic_init($td, $this->secret_key, $iv);
//$decrypted_text = mdecrypt_generic($td, self::hex2bin($str));
$decrypted_text = mdecrypt_generic($td, base64_decode($str));
$rt = $decrypted_text;
mcrypt_generic_deinit($td);
mcrypt_mole_close($td);
return $this->unpad($rt);
}
public static function hex2bin($hexdata) {
$bindata = '';
$length = strlen($hexdata);
for ($i=0; $i< $length; $i += 2)
{
$bindata .= chr(hexdec(substr($hexdata, $i, 2)));
}
return $bindata;
}
public static function pkcs5_pad($text, $blocksize)
{
$pad = $blocksize - (@strlen($text) % $blocksize);
return $text . str_repeat(chr($pad), $pad);
}
public static function pkcs5_unpad($text)
{
$pad = ord($text{strlen($text) - 1});
if ($pad > strlen($text)) return false;
if (strspn($text, chr($pad), strlen($text) - $pad) != $pad) return false;
return substr($text, 0, -1 * $pad);
}
}
/*$keyStr = 'UITN25LMUQC436IM';
$plainText = 'this is a string will be AES_Encrypt';
$aes = new CryptAES();
$aes->set_key($keyStr);
$aes->require_pkcs5();
$encText = $aes->encrypt($plainText);
$decString = $aes->decrypt($encText);
echo $encText,"n",$decString;*/
⑥ thinkphp MD5加密问题
AUTH_CODE这个参数是自定义的，每个网站的参数都不一样，有些网站为了安全，这个值还是随机数，这样的话，就打打加强了开源程序的安全性。encrypt这个函数在这里就是读取配置文件中的随机数和MD5加密之后的文件再做个二次加密，所以就很安全咯
是否可以解决您的问题？
⑦ 求教php AES/CBS/PKCS5Padding加密
要实现一个功能, 就是把字符串加密...
有一个java端的加密DEMO, 现在要转换成PHP实现..
但是PHP的得到的结果和JAVA得到的真的是完全不一样....
求大家帮帮忙,,, 看看哪里出问题了... THKS...
下面贴出JAVA端的DEMO:
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public class Aes
{
private static byte[] iv = {1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6};
public static String encrptAesBase64(String encryptString, String encryptKey)
throws Exception
{
if (encryptKey == null)
{
return null;
}
if (encryptString == null)
{
return null;
}
if (encryptKey.length() != 16)
{
return null;
}
IvParameterSpec zeroIv = new IvParameterSpec(iv);
byte[] keys = encryptKey.getBytes("UTF8");
SecretKeySpec key = new SecretKeySpec(keys, "AES");
Cipher cipher = Cipher.
getInstance("AES/CBC/PKCS5Padding");// 算法/模式/补码方式
cipher.init(Cipher.ENCRYPT_MODE, key, zeroIv);
byte[] encryptedData = cipher.doFinal(encryptString.getBytes("UTF8"));
String base64Str = new String(Base64.encodeBase64(encryptedData), "UTF8");
return URLEncoder.encode(base64Str, "utf-8");
}
}
下面贴出PHP的实现:
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<?php
class MagicCrypt
{
private $iv = "1234567890123456" ;
private $encryptKey="abcdefghijklmnop" ;
function encrypt($encryptStr)
{
$localIV = $this->iv ;
$encryptKey = $this->encryptKey ;
//Open mole
$mole = mcrypt_mole_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, $localIV) ;
//print "mole = $mole <br/>" ;
mcrypt_generic_init($mole, $encryptKey, $localIV) ;
//Padding
$block = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC) ;
$pad = $block - (strlen($encryptStr) % $block); //Compute how many characters need to pad
$encryptStr .= str_repeat(chr($pad), $pad); // After pad, the str length must be equal to block or its integer multiples
//encrypt
$encrypted = mcrypt_generic($mole, $encryptStr);
//Close
mcrypt_generic_deinit($mole);
mcrypt_mole_close($mole);
return urlencode(base64_encode($encrypted)) ;
}
}
function main() {
$appid = 110 ;
$openid = "abcdefghijklmnop" ;
$appName="应用名称" ;
$encryptKey="abcdefghijklmnop" ;
$param0="abcdefghijklmnop" ;
$encryptString= "openId=" . $openid . "&appName=" . $appName . "¶m0=" . $param0 ;
$encryptObj = new MagicCrypt() ;
$result = $encryptObj->encrypt($encryptString) ;
print "hello new2 php result = $result <br/>" ;
$result = urlencode($result) ;
print "hello new3 php result = $result <br/> " ;
}
main();
?>
⑧ php 当中 openssl_private_encrypt 加密的时候 为什么只能加密117个字符的长度的字符串，超过这个长度的字
PHP RSA使用非对称加解密就是 密钥/8 -11的长度。你可以使用AES/DES对称加解密这个不限制长度