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This article focuses on "how to use openSSL to build a nodejs server that supports https". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn how to use openSSL to build a nodejs server that supports https.

First download openSSL via the link below

Https://slproweb.com/products/Win32OpenSSL.html

After downloading, execute openssl to enter the interactive interface:

Using the command to generate privatekey.pem 1024 means 1024 bits long.

Openssl genrsa-out privatekey.pem 1024

Open the generated privatekey.pem to see what it looks like:

What is a pem file?

.pem-Defined in RFCs 1421 through 1424, this is a container format that may include just the public certificate (such as with Apache installs, and CA certificate files / etc/ssl/certs), or may include an entire certificate chain including public key, private key, and root certificates. Confusingly, it may also encode a CSR (e.g. As used here) as the PKCS10 format can be translated into PEM. The name is from Privacy Enhanced Mail (PEM), a failed method for secure email but the container format it used lives on, and is a base64 translation of the x509 ASN.1 keys.

To put it simply, it is a key file.

The second step is to generate a certificate request based on the key file generated in the first step:

Openssl req-new-key privatekey.pem-out certrequest.csr

If you don't bother to maintain the details of the certificate and hit enter directly, the default value will be filled in automatically:

Finally, a digital certificate is generated based on the key and certificate request generated in the first step: of course, the authority is itself, for testing purposes only.

Openssl x509-req-in certrequest.csr-signkey privatekey.pem-out certificate.pem

Now we have two certificates, privatekey.pem and Certificate.pem.

The following is the code for my https server, which is very simple, with only 50 lines:

Var app = require ('express') (); var fs = require (' fs'); var https = require ('https'); var httpOptions = {key: fs.readFileSync ("keys/privatekey.pem"), cert: fs.readFileSync ("keys/certificate.pem")} var server = https.createServer (httpOptions, app); var io = require (' socket.io') (server); console.log ("https server listens on port 8080..."); server.listen (8080) Function print_env () {console.log (process.env);} app.get ('/', function (req, res) {var response = "Hello World"; res.send (response);}); app.get ('/ env', function (req, res) {print_env (); / / res.sendFile (_ dirname +'/ index.html'); var response = JSON.stringify (process.env); res.send (response);}) App.get ('/ redis', function (req, res) {var redisClient = require (". / redisClient"); function callback (response) {/ / var response = "ok"; / / JSON.stringify (process.env); res.send (response);} redisClient.test (callback);}); io.on ('connection', function (socket) {console.log ("connect comming from client:" + socket.id) Socket.emit ('messages_jerry', {hello:' world greeting from servers'}); socket.on ('messages', function (data) {console.log ("data received from Client:" + JSON.stringify (data,2,2));});})

It is not difficult to understand from the code how these two pem files are used in the https server.

Finally, it is tested in the browser. Because it is a self-issued certificate and has not been verified by CA, the browser displays a warning.

At this point, I believe you have a deeper understanding of "how to use openSSL to build a nodejs server that supports https". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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