如何在WAMP中使用MCRYPT_ARCFOUR加密？ [英] How to encrypt with MCRYPT_ARCFOUR in WAMP?

问题描述

我想在我的PHP代码中使用ARCFOUR算法：

I'm trying to use ARCFOUR algorithm in my PHP code:

$td = mcrypt_module_open(MCRYPT_ARCFOUR, '', MCRYPT_MODE_CBC, '');
$iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
mcrypt_generic_init($td, $key, $iv);
$output = mcrypt_generic($td, $input);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);

问题是第一行返回警告：

and the problem is that the first line returns warning:

mcrypt_module_open(): Could not open encryption module

< hr>

我的设置：

• 从php_info （）output：

• From php_info() output:

命令configure：...--with-mcrypt = static...

command configure: ... "--with-mcrypt=static" ...

如果我是正确的，这意味着我不需要DLL的mcrypt扩展。

If I'm correct it means I do not need a DLL for mcrypt extension.

支持的密码： cast-128 gost rijndael-128 twofish arcfour cast-256 loki97 rijndael-192 saferplus wake blowfish-compat des rijndael-256 serpent xtea blowfish enigma rc2 tripledes

Supported ciphers: cast-128 gost rijndael-128 twofish arcfour cast-256 loki97 rijndael-192 saferplus wake blowfish-compat des rijndael-256 serpent xtea blowfish enigma rc2 tripledes

PHP版本5.3.8

PHP version 5.3.8

Wamp 2.2a （32位）

Wamp 2.2a (32 bits)

感谢您的帮助！

推荐答案

从PHP 5.3.6和5.4.0 RC6开始， arcfour ，唤醒和 enigma mcrypt密码需要使用 stream / em>。它们不会初始化任何其他模式，也不能使用任何其他密码使用 stream 模式。

As of PHP 5.3.6 and 5.4.0 RC6, the arcfour, wake and enigma mcrypt ciphers require the use of stream mode. They will not initialize any of the other modes, nor can any of the other ciphers use stream mode.

演示代码，使用 @ 现在静默无法打开模块警告：

Demo code, with the @ present to silence the "can't open module" warning:

foreach(mcrypt_list_algorithms() as $alg) {
    printf("\n%20s:", $alg);
    foreach(mcrypt_list_modes() as $mode) {
        $mc = @mcrypt_module_open($alg, null, $mode, null);
        if(is_resource($mc)) echo "\t$mode";
        else echo "\t!!FAIL!!:$mode";
    }
}
echo "\n";

演示输出：

        cast-128:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
            gost:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
    rijndael-128:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
         twofish:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
         arcfour:   !!FAIL!!:cbc    !!FAIL!!:cfb    !!FAIL!!:ctr    !!FAIL!!:ecb    !!FAIL!!:ncfb   !!FAIL!!:nofb   !!FAIL!!:ofb    stream
        cast-256:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
          loki97:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
    rijndael-192:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
       saferplus:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
            wake:   !!FAIL!!:cbc    !!FAIL!!:cfb    !!FAIL!!:ctr    !!FAIL!!:ecb    !!FAIL!!:ncfb   !!FAIL!!:nofb   !!FAIL!!:ofb    stream
 blowfish-compat:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
             des:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
    rijndael-256:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
         serpent:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
            xtea:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
        blowfish:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
          enigma:   !!FAIL!!:cbc    !!FAIL!!:cfb    !!FAIL!!:ctr    !!FAIL!!:ecb    !!FAIL!!:ncfb   !!FAIL!!:nofb   !!FAIL!!:ofb    stream
             rc2:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream
       tripledes:   cbc cfb ctr ecb ncfb    nofb    ofb !!FAIL!!:stream

---

正在查看 PHP错误49311 ，该问题在2009年未收到任何反馈后被关闭。 RC4 ， WAKE 和谜语被打破。代码演示问题：

---

It looks like you (and I) are seeing PHP bug 49311, which was closed after no feedback in 2009. RC4, WAKE and Enigma are broken. Code to demonstrate the problem:

foreach(mcrypt_list_algorithms() as $algo) {
    echo $algo; 
    $td = mcrypt_module_open($algo, '', MCRYPT_MODE_CBC, '');
    echo "\n";
}

从PHP交互式提示输出到我的系统：

Output on my system, from the PHP interactive prompt:

cast-128
gost
rijndael-128
twofish
arcfourPHP Warning:  mcrypt_module_open(): Could not open encryption module in php shell code on line 1
PHP Stack trace:
PHP   1. {main}() php shell code:0
PHP   2. mcrypt_module_open() php shell code:1

cast-256
loki97
rijndael-192
saferplus
wakePHP Warning:  mcrypt_module_open(): Could not open encryption module in php shell code on line 1
PHP Stack trace:
PHP   1. {main}() php shell code:0
PHP   2. mcrypt_module_open() php shell code:1

blowfish-compat
des
rijndael-256
serpent
xtea
blowfish
enigmaPHP Warning:  mcrypt_module_open(): Could not open encryption module in php shell code on line 1
PHP Stack trace:
PHP   1. {main}() php shell code:0
PHP   2. mcrypt_module_open() php shell code:1

rc2
tripledes

直到（除非）他们修复此错误或找到解决方法，您将需要选择不同的加密算法。

Until (unless) they fix this bug or a workaround is found, you'll want to choose a different encryption algorithm.

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