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<?php function encrypt($string, $salt = NULL){ $mcrypt_iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB); $mcrypt_iv = mcrypt_create_iv($mcrypt_iv_size, MCRYPT_RAND); $mcrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, hash('md5', $salt, true), $string, MCRYPT_MODE_ECB, $mcrypt_iv); $encoded = base64_encode($mcrypted); return $encoded; } function decrypt($hash, $salt = NULL){ $mcrypt_iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB); $mcrypt_iv = mcrypt_create_iv($mcrypt_iv_size, MCRYPT_RAND); $basedecoded = base64_decode($hash); $mcrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, hash('md5', $salt, true), $basedecoded, MCRYPT_MODE_ECB, $mcrypt_iv); return $mcrypted; } $en = encrypt('to jest testowy string', hash('sha512', 'test'))."\n"; echo decrypt($en, hash('sha512', 'test'));

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