PHP version - SimplePlay

DES Encrypt/Decrypt function in PHP:

<?php
class DES
{
    var $key;
    var $iv;
    function DES( $key, $iv=0 ) {
        $this->key = $key;
        if( $iv == 0 ) {
            $this->iv = $key;
        } else {
            $this->iv = $iv;
        
    }

    function encrypt($str) {
        $size = mcrypt_get_block_size ( MCRYPT_DES, MCRYPT_MODE_CBC);
        $str = $this->pkcs5Pad ( $str, $size );
        return base64_encode( mcrypt_encrypt(MCRYPT_DES, $this->key, $str, MCRYPT_MODE_CBC, $this->iv ) );
 }
    function decrypt($str) {
        $str = mcrypt_decrypt(MCRYPT_DES, $this->key, base64_decode($str), MCRYPT_MODE_CBC, $this->iv);
        return rtrim($str, “\x1\x2\x3\x4\x5\x6\x7\x8”);
    }

    function pkcs5Pad($text, $blocksize) {
        $pad = $blocksize - (strlen ( $text ) % $blocksize);
        return $text . str_repeat ( chr ( $pad ), $pad );
    }
}
?>

<?php

class DES

{

var $key;

var $iv;

function DES( $key, $iv=0 ) {

$this->key = $key;

if( $iv == 0 ) {

$this->iv = $key;

} else {

$this->iv = $iv;

}

function encrypt($str) {

$size = mcrypt_get_block_size ( MCRYPT_DES, MCRYPT_MODE_CBC);

$str = $this->pkcs5Pad ( $str, $size );

return base64_encode( mcrypt_encrypt(MCRYPT_DES, $this->key, $str, MCRYPT_MODE_CBC, $this->iv ) );

}

function decrypt($str) {

$str = mcrypt_decrypt(MCRYPT_DES, $this->key, base64_decode($str), MCRYPT_MODE_CBC, $this->iv);

return rtrim($str, “\x1\x2\x3\x4\x5\x6\x7\x8”);

}

function pkcs5Pad($text, $blocksize) {

$pad = $blocksize - (strlen ( $text ) % $blocksize);

return $text . str_repeat ( chr ( $pad ), $pad );

}

MD5 function in PHP:

<?php
$str = "method=GetUserStatus&Key=01234567789ABCDEF0123456789ABCDE&Time=20150101012345&Username=abcd12345"; // for example
$md5key = "abcdefg"; // for example
$Time = "20150101012345"; // for example
$SecretKey = "01234567789ABCDEF0123456789ABCDE"; // for example
$PreMD5Str = $str . $md5key . $Time . $SecretKey;
$OutMD5 = md5($PreMD5Str);
echo "md5:[ $OutMD5 ]";
?>

<?php

$str = "method=GetUserStatus&Key=01234567789ABCDEF0123456789ABCDE&Time=20150101012345&Username=abcd12345"; // for example

$md5key = "abcdefg"; // for example

$Time = "20150101012345"; // for example

$SecretKey = "01234567789ABCDEF0123456789ABCDE"; // for example

$PreMD5Str = $str . $md5key . $Time . $SecretKey;

$OutMD5 = md5($PreMD5Str);

echo "md5:[ $OutMD5 ]";

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