Tag Archives: mcrypt

Plugging mcrypt into PHP, on Mac OS X Mountain Lion 10.8

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Out with the old lion, in with the high altitude cat. Twice again, thanks goes out to previous commenters – this time it’s Mario, Max, and Rob, for the providing the right pieces to the puzzle. Onward…

The following instructions cater to those who a) are developing on OS X Mountain Lion 10.8.X, b) need the capabilities provided by mcrypt during their PHP development (such as installing Magento eCommerce), and c) do not want to completely recompile PHP or run MAMP. You’ll get mcrypt loading dynamically within PHP with these instructions.

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Plugging mcrypt into PHP, on Mac OS X Lion 10.7

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Perfected for the winter cat, now on to the king of the jungle. Once again, thanks goes out to a previous commenter, this time it’s rachanta, for the first test. Now let’s get moving…

The following instructions cater to those who a) are developing on OS X Lion 10.7.X, b) need the capabilities provided by mcrypt during their PHP development, and c) do not want to completely recompile PHP to get there. You’ll get mcrypt loading dynamically for use in PHP with this method.

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Plugging mcrypt into PHP, on Mac OS X Snow Leopard 10.6.1

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First mcrypt on Leopard, and now we ready for the winter cat. Additionally, special thanks goes out in advance to commenter Yvan Barthelemy (a.k.a. ybart) for cluing me in here. The procedure is almost exactly like the previous…almost. So pay attention.

The following instructions cater to those who a) are developing on OS X Snow Leopard 10.6.1, b) need the capabilities provided by mcrypt during their PHP development, and c) do not want to completely recompile PHP to get there. You’ll get mcrypt loading dynamically for use in PHP with this method.

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I like my cookies with encryption on top

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Quick and dirty mcrypt usage

I don’t know where I discovered the original idea, but in messing around with a PHP app I found the need to encrypt session cookies. Here’s how it was done, with the mcrypt library:

//encrypt session cookie
function encryptUserCookie($value)
{
if(!$value) {
return false;
}
$key = SESSION_SALT;
$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, $key, $text, MCRYPT_MODE_ECB, $iv);
return trim(base64_encode($crypttext)); //encode for cookie
}

Decoding the cookie was much the same…

//decrypt session cookie
function decryptUserCookie($value)
{
if(!$value) {
return false;
}
$key = SESSION_SALT;
$crypttext = base64_decode($value); //decode cookie
$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, $key, $crypttext, MCRYPT_MODE_ECB, $iv);
return trim($decrypttext);
}

SESSION_SALT was of course something I called from a variables file.

These snippets were used in an online directory system, where I didn’t want attendees inspecting the cookies for the purpose of setting up multiple listings under the same login.

Simple stuff, but hope it is useful to someone.

Plugging mcrypt into PHP, on Leopard 10.5.6

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mcrypt on Fedora Core easy – on Leopard with PHP 5.2.6 not so much.

The instructions below cater to those folks who a) are developing on OS X Leopard 10.5.6, b) need the capabilities provided by mcrypt during their PHP development, and c) do not want to completely recompile PHP to get there. You’ll get mcrypt loading dynamically for use in PHP with this method.

First, you are going to need a few things…

1) libmcrypt-2.5.8, which you can pick up here;

2) PHP 5.2.6 source, which you grab here; and

3) Xcode 3 tools (dig through your sock drawer to find your Leopard disk).

Next, create a directory at root called ‘SourceCache’ and dump the files from #1 and #2 in there and unwrap.

Move to the libmcrypt-2.5.8 directory, and punch in this…

MACOSX_DEPLOYMENT_TARGET=10.5 CFLAGS='-O3 -fno-common -arch i386 -arch x86_64 -arch ppc7400 -arch ppc64' LDFLAGS='-O3 -arch i386 -arch x86_64 -arch ppc7400 -arch ppc64' CXXFLAGS='-O3 -fno-common -arch i386 -arch x86_64 -arch ppc7400 -arch ppc64' ./configure --disable-dependency-tracking

and then…

make -j6

and finally…

sudo make install

libmcrypt is ready – now for the PHP extension…

Move back to /SourceCache, then down to php-5.2.6/ext/mcrypt – type…

/usr/bin/phpize (phpize should be in /usr/bin – if not go find it and change the command as appropriate)

Then configure as follows…

MACOSX_DEPLOYMENT_TARGET=10.5 CFLAGS='-O3 -fno-common -arch i386 -arch x86_64 -arch ppc7400 -arch ppc64' LDFLAGS='-O3 -arch i386 -arch x86_64 -arch ppc7400 -arch ppc64' CXXFLAGS='-O3 -fno-common -arch i386 -arch x86_64 -arch ppc7400 -arch ppc64' ./configure --with-php-config=/Developer/SDKs/MacOSX10.5.sdk/usr/bin/php-config

Again make -j6 then sudo make install

Make sure you have php.ini in the /etc directory (it may be php.ini.default to start, so rename it). Ensure that enable_dl = On but do not remove the ; from in front of ;extension_dir = "./". UPDATE: Almost forgot – add one line to the .ini file in the Dynamic Extensions section… ‘extension=mcrypt.so’, without the quotes of course (thanks to Badrul).

Restart Apache – when all’s said and done you should be able to see this with phpinfo():

Special thanks go to salty beagle and Kenior Design for giving me the clues to getting the combination of events right.

MORE: Two commenters noted they had their success with the above after updated Xcode to 3.1.2.

Have Fedora, but no mcrypt functionality for PHP?

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Easy fix, despite the official line from PHP which says you need to recompile PHP –with-mcrypt.

I’ll caveat this by stating I’m using Fedora Core 7…

1) At the terminal, su root – you are now going to yum, not ./configure, make, and make install…

2) yum install mcrypt – this will get you libmcrypt, mhash, and mcrypt

3) yum install php-mcrypt – this will get you the functionality within PHP

Uh…done (without hassles).