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@niczak
Created April 26, 2012 18:48
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PHP Encrypt/Decrypt Class
<?php
class Encryption {
var $skey = "yourSecretKey"; // change this
public function safe_b64encode($string) {
$data = base64_encode($string);
$data = str_replace(array('+','/','='),array('-','_',''),$data);
return $data;
}
public function safe_b64decode($string) {
$data = str_replace(array('-','_'),array('+','/'),$string);
$mod4 = strlen($data) % 4;
if ($mod4) {
$data .= substr('====', $mod4);
}
return base64_decode($data);
}
public function encode($value){
if(!$value){return false;}
$text = $value;
$iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
$crypttext = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $this->skey, $text, MCRYPT_MODE_ECB, $iv);
return trim($this->safe_b64encode($crypttext));
}
public function decode($value){
if(!$value){return false;}
$crypttext = $this->safe_b64decode($value);
$iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
$decrypttext = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $this->skey, $crypttext, MCRYPT_MODE_ECB, $iv);
return trim($decrypttext);
}
}
/*
Sample Call:
$str = "myPassword";
$converter = new Encryption;
$encoded = $converter->encode($str );
$decoded = $converter->decode($encode);
echo "$encoded<p>$decoded";
*/
?>
@tazosmr
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tazosmr commented Jul 17, 2013

hi. THERE IS AN ERROR, FIX THE 46 line, where should be $encoded, instead of $encode.

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ghost commented Jan 16, 2014

any hope for adding this to composer someday? thanks.

@0xbb
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0xbb commented Nov 27, 2014

Hi!
I am not sure about the purpose of your Encrypt/Decrypt class, but the code is not secure!

@bhrdn
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bhrdn commented Feb 23, 2016

var $skey = "1234567890123456"; // 16, 24 or 32 Digits
$decoded = $converter->decode($encoded);

@Hortt
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Hortt commented Dec 31, 2016

I'm getting sometimes not valid source text after decode. it looks like ugly characters:
https://gyazo.com/243cb5ec3a1ca5e6683da6280f3fdc73

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