Implementing HTTPS Requests in LabVIEW

# Introduction to HTTPS and LabVIEW

### 1.1 What is the HTTPS Protocol?

HTTPS (Hyper Text Transfer Protocol Secure) is an encrypted communication protocol based on HTTP, which adds an SSL/TLS protocol layer to HTTP, achieving encrypted communication and authentication. It ensures secure data transmission between clients and servers. Using HTTPS can effectively prevent security issues such as man-in-the-middle attacks, data tampering, and eavesdropping.

### 1.2 Overview of Network Communication in LabVIEW

LabVIEW is a graphical programming platform widely used in the field of engineering technology. Within LabVIEW, various network operations, including HTTP/HTTPS requests, can be implemented through its network communication module. With the network communication capabilities of LabVIEW, users can easily communicate with remote servers, including operations such as retrieving data and sending commands. In this chapter, we will introduce how to implement HTTPS requests in LabVIEW to achieve secure network communication.

# Preparation Work

### 2.1 Ensure LabVIEW Has Installed the Appropriate Modules

Before starting to use LabVIEW for HTTPS requests, you must first ensure that your LabVIEW has installed the appropriate modules to support HTTPS communication. Typically, LabVIEW comes with HTTP Client and HTTP Server modules, but for HTTPS requests, you may need to install additional modules or tools to enable secure communication.

### 2.2 Obtain the Certificate Information Required for HTTPS Requests

HTTPS communication is encrypted and requires a certificate to establish a secure connection. Before making HTTPS requests in LabVIEW, ensure you have obtained the SSL certificate information of the target server. Generally, you need to obtain the server's SSL certificate, public key, and CA certificate chain to ensure that a secure HTTPS connection can be established.

In the following chapters, we will introduce how to set up HTTPS requests and process HTTPS responses in LabVIEW.

# Creating HTTPS Request VIs

Creating a VI for HTTPS requests in LabVIEW is a critical step. Below we will detail how to set up HTTPS requests and send them.

#### 3.1 How to Set Up HTTPS Requests in LabVIEW

In LabVIEW, HTTP Client VIs can be used to send HTTP and HTTPS requests. To send an HTTPS request, ensure that the HTTPS Client has the appropriate certificate information to establish a secure connection with the server.

// Set the certificate information for the HTTPS Client
Set HTTPS Client Certificate.vi

#### 3.2 Set the Request URL and Parameters

When creating a VI for HTTPS requests, you need to set the request's URL and parameters. These parameters include the request method (GET/P