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我一直在尝试在服务器端、PHP 和客户端上实现 mcrypt 加密/解密技术。我mcrypt.js目前正在尝试将库用作：

<?php 
$key = 'testtesttesttesttesttesttesttest';

function string_encrypt($string, $key) {
    $crypted_text = mcrypt_encrypt(
                        MCRYPT_RIJNDAEL_128, 
                        $key, 
                        $string, 
                        MCRYPT_MODE_ECB
                    );
    return base64_encode($crypted_text);
}

function string_decrypt($encrypted_string, $key) {
    $decrypted_text = mcrypt_decrypt(
                        MCRYPT_RIJNDAEL_128, 
                        $key, 
                        base64_decode($encrypted_string), 
                        MCRYPT_MODE_ECB
                    );
    return trim($decrypted_text);
}

echo 'Provided Text:    '.$test_str = 'This is test message.';
echo '<br />';
echo 'Encyrpted Value:  '.$enc_str = string_encrypt($test_str, $key);   
echo '<br />';
echo 'Decrypted Value:  '.string_decrypt($enc_str, $key);                               
echo '<br />';
?>

<script src='rijndael.js'></script>
<script src='mcrypt.js'></script>
<script src='base64v1_0.js'></script>

<script lang='javascript'>
    var enc_str = mcrypt.Encrypt('<?php echo $test_str ?>','');
    enc_str = B64.encode(enc_str);
    alert(enc_str); 
    // I don't get this same as encypted PHP text. i.e. $enc_str
    var dec_str = B64.decode('<?php echo $enc_str ?>');
    alert(mcrypt.Decrypt(dec_str,'')); 
    // I don't get this same as decypted PHP text. 
    // i.e. string_decrypt($enc_str)
</script>

我在 mcrypt.js 库中使用了以下这些私有变量。

 var cMode='ecb';
 var cCipher='rijndael-256';
 var cKey='testtesttesttesttesttesttesttest'; 
 //I am providing the same key

正如我上面评论的enc_str那样，为什么它不等于$enc_str，为什么mcrypt.Decrypt('<?php echo $enc_str ?>', '')不等于string_decrypt($enc_str, $key)？

更新的问题：

我尝试了 base64 编码/解码甚至 hex2bin/bin2hex 来解析这些字符串，但这两个产生了以下结果：

使用 Hex2bin/ Bin2hex

PHP结果：

Provided Text: This is test message.
Encyrpted Value: a51e970427ec8f666a5684cc1712ad03b29889cc10f4ccbf55733564d11c0386
Decrypted Value: This is test message.

JS结果：

Provided Text:This is test message.
Mcrypted value:¥'ìfjVÌ­²ÌôÌ¿Us5dÑ
Encyrpted Value:a51e970427ec8f666a5684cc1712ad03b29889cc10f4ccbf55733564d11c0386
After Hex to Bin Text:¥'ìfjVÌ­²ÌôÌ¿Us5dÑ
Decrypted Value:This is test message.�����������
/*These diamond with question mark is produced while decypting the value.*/

使用 Base64 编码/解码：

PHP结果：

Provided Text: This is test message.
Mcrypt encrypted value : ¥—'ìfjV„Ì­²˜‰ÌôÌ¿Us5dц
/*
 Here mcrypted value provided by JS and PHP is different
 That is causing to produce different value at two ends
*/
Encyrpted Value: pR6XBCfsj2ZqVoTMFxKtA7KYicwQ9My/VXM1ZNEcA4Y=
Decrypted Value: This is test message.

JS结果：

Provided Text:This is test message.
Mcrypted value:¥'ìfjVÌ­²ÌôÌ¿Us5dÑ
Encyrpted Value:wqUewpcEJ8Oswo9malbChMOMFxLCrQPCssKYwonDjBDDtMOMwr9VczVkw5EcA8KG
After Base64 Decode:¥'ìfjVÌ­²ÌôÌ¿Us5dÑ���
Decrypted Value:This is test message.�����������bFaêF«+JéÓ!ÆÖ

并且在这两种情况下，都无法在 JS 端解密 UTf-8 内容。

*链接：*

Mcrypt JS库

Base64 JS 库

4

2 回答 2

7
于 2013-09-16T14:18:10.790 回答
1

What I did is :

<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<?php 
$key = '12345678911234567892123456789312';

function string_encrypt($string, $key) {
    $crypted_text = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $string, MCRYPT_MODE_ECB);
    return base64_encode($crypted_text);
}

function string_decrypt($encrypted_string, $key) {
    return mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, base64_decode($encrypted_string), MCRYPT_MODE_ECB);
}

echo 'Provided Text:    <br />' . $test_str =  'this is test काठमाडौं - राष्ट्रिय सुरक्षा परिषद्ले आसन्न संविधानसभा चुनावको सुरक्षामा नेपाली सेना खटाउने निर्णय गरेको छ। मंगलबार साँझ बसेको परिषद् बैठकले सुरक्षा अवस्था संवेदनशील भएको कारण देखाउँदै सात वर्षपछि सेना परिचालनका लागि मन्त्रिपरिषदसमक्ष सिफारिस गर्ने निर्णय गरेको हो। this is test';                           
echo '<br />';echo '<br />';

echo 'Encrypted Value:  <br />' . $enc_str = string_encrypt($test_str, $key);
echo '<br />';echo '<br />';

echo 'Decrypted Value:  <br />' . string_decrypt($enc_str, $key);
echo '<br />';echo '<br />';
?>
<script src='stringcoders.base64.js'></script>
<script src='rijndael.js'></script>
<script src='mcrypt.js'></script>

<script lang='javascript'  charset="utf-8">
    var is_IE = /*@cc_on!@*/false;
    var message = '';

    var str = '<?php echo $test_str ?>';
    (is_IE) ? (message+= 'Provided Text:' + str) : console.log('Provided Text: \n' + str);
    str = unescape(encodeURIComponent(str));

    /* 
        I added this. Converted to ISO Latin before encryting and vice versa on decryption.
        Though don't know how this made work.
    */  
    var enc_str = mcrypt.Encrypt(str, '');
    enc_str = base64.encode(enc_str);
    (is_IE) ? (message+= 'Encrypted Value:' + enc_str) : console.log('\nEncyrpted Value:\n' + enc_str);

    var dec_str = base64.decode(enc_str);
    dec_str = mcrypt.Decrypt(dec_str, '').replace(/\x00+$/g, '');
    dec_str = decodeURIComponent(escape(dec_str));
    (is_IE) ? (message+= 'Decrypted Value:' + dec_str) : console.log('\nDecrypted Value:\n' + dec_str); 

    (is_IE) ? alert(message) : '';
</script>
于 2013-09-18T04:51:03.187 回答