如何在PHP REST网站中实现RS512或更高的安全算法？

use Firebase\JWT\JWT;

// 设置JWT的payload
$payload = array(
    "iss" => "your-issuer",
    "aud" => "your-audience",
    "exp" => time() + 3600, // 设置过期时间为1小时
    "data" => array(
        "user_id" => 123,
        "username" => "john_doe"
    )
);

// 使用私钥生成签名
$privateKey = 'your-private-key';
$jwtToken = JWT::encode($payload, $privateKey, 'RS512');

echo $jwtToken;

use Firebase\JWT\JWT;

$jwtToken = "your-jwt-token";
$publicKey = 'your-public-key';

try {
    // 验证签名并解码JWT Token
    $decodedToken = JWT::decode($jwtToken, $publicKey, array('RS512'));

    // 可以访问JWT Token的payload数据
    $userId = $decodedToken->data->user_id;
    $username = $decodedToken->data->username;

    echo "User ID: " . $userId . "\n";
    echo "Username: " . $username . "\n";
} catch (Exception $e) {
    // 签名验证失败或JWT Token已过期
    echo "Invalid token: " . $e->getMessage();
}