SHA 512 hashing and verifying

Question

Alright so Im trying to verify password with SHA 512, but no matter what it still returns false like the hash check is not correct.

Generating hash when registering

$hashed = password_hash(hash('sha512', $password), PASSWORD_DEFAULT);

And to verify (upon login) I use simple

public function isValidLogin($username, $password) {
    $sql = $this->connect();
    $sql->real_escape_string($username);
    $sql->real_escape_string($password);

    $res = $sql->query("SELECT password FROM users WHERE name='".$username."'");

    if ($res->num_rows >= 1) {
        while($row = $res->fetch_assoc()) {
            if (password_verify(hash('sha512', $password), $row['password'])) {
                return true;
            }
        }
    }

    return false;
}

Answer 1

在注册时尝试使用此代码而不是您的代码。

 $hashed = hash("sha512", $password);

Answer 2

// original password
$_password = 'bluebeans123';

$password = hash('sha512', $_password);
$password = password_hash($password, PASSWORD_DEFAULT);

var_dump($password);

$verify = hash('sha512', $_password);
$verify = password_verify($verify, $password);

var_dump($verify);

Elaborate example: http://wiki.travisfont.com/PHP: Passwords (hash_w/_SHA512)