PHP 5.x-8.x polyfill for mcrypt extension.
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With Composer:
composer require phpseclib/mcrypt_compat
- rijndael-128
- rijndael-192
- rijndael-256
- des
- blowfish
- rc2
- tripledes
- arcfour
- cast-128
- gost
- cast-256
- loki97
- saferplus
- wake
- blowfish-compat
- serpent
- xtea
- enigma
- cbc
- ncfb
- cfb
- ctr
- ecb
- nofb
- ofb
- stream
mcrypt_compat's ncfb implementation has some incompatibles with mcrypt's implementation where mcrypt_generic and mdecrypt_generic are concerned. The unit tests elaborate.
The mcrypt extension's behavior underwent changes as new versions of PHP were released. By default mcrypt_compat emulates the behavior of PHP 7.1 but if you need to emulate how mcrypt behaved in, say, PHP 5.3.0, you may do so by doing define('PHPSECLIB_MCRYPT_TARGET_VERSION', '5.3.0'); before including vendor/autoload.php (if you're using this with Composer).
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