passargon.php

passargon.php

<?php

define('TESTFILE', '/tmp/pass.json');

function generate() {
	$pass = ['secret', 'coucou', 'LexjfvSDK', 'password'];
	for ($i=0 ; $i<10 ; $i++) {
		$pass[] = bin2hex(random_bytes(10+$i));
	}
	$res = [];
	if (PASSWORD_BCRYPT == 1) { /* PHP 7.3 */
		$a = [PASSWORD_BCRYPT, PASSWORD_ARGON2I, PASSWORD_ARGON2ID];
	} else {
		$a = [PASSWORD_BCRYPT, "argon2i", "argon2id"];
	}
	foreach ($a as $algo) {
		$res[$algo] = [];
		foreach ($pass as $p) {
			if (is_null($res[$algo][$p] = password_hash($p, $algo))) {
				echo "F";
			} else {
				echo ".";
			}
		}
		echo "\n";
	}
	file_put_contents(TESTFILE, json_encode($res, JSON_PRETTY_PRINT));
}

function check() {
	$in = json_decode(file_get_contents(TESTFILE), true);
	foreach($in as $algo => $p) {
		foreach($p as $pass => $hash) {
			if (password_verify($pass, $hash)) {
				echo ".";
			} else {
				echo "F";
			}
		}
		echo "\n";
	}
}

printf("PHP_VERSION: %s\n", PHP_VERSION);
if (defined('PASSWORD_ARGON2_PROVIDER')) {
	printf("PASSWORD_ARGON2_PROVIDER: %s\n", PASSWORD_ARGON2_PROVIDER);
}
if ($_SERVER['argc'] < 2) {
	die("missing parameter: gen or check\n");

} else if ($_SERVER['argv'][1] == 'gen') {
	generate();

} else if ($_SERVER['argv'][1] != 'check') {
	die("Bad parameter, need gen or check\n");

} else if (file_exists(TESTFILE)) {
	check();

} else {
	die("Missing test file\n");
}