39 lines
875 B
PHP
39 lines
875 B
PHP
<?php
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function pretty_dump($arg)
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{
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ob_start();
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echo '<pre>';
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print_r($arg);
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echo '</pre>';
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return ob_get_clean();
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}
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function random_string()
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{
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$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
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$rand_string = '';
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for ($i = 0; $i < 512; $i++)
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$rand_string = $characters[rand(0, strlen($characters) - 1)];
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return $rand_string;
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}
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function verify_hash($arg, $hash_salt)
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{
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list($salt_hex, $hash) = explode('.', $hash_salt, 2);
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$salt = hex2bin($salt_hex);
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$calculated_hash = hash('sha512', $salt . $arg . $_ENV['SALT']);
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return hash_equals($hash, $calculated_hash);
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}
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function hash_salt($arg = null)
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{
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if (!$arg)
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$arg = random_string();
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$salt1 = random_bytes(256);
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$salt2 = $_ENV['SALT'];
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return bin2hex($salt1) . '.' . hash('sha512', $salt1 . $arg . $salt2);
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}
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