Método Node.js tls.DEFAULT_MIN_VERSION

tls.DEFAULT_MIN_VERSION es una interfaz de programación de aplicaciones incorporada de clase TLS dentro del módulo tls que se usa para devolver el valor predeterminado de la opción minVersion de tls.createSecureContext().

Sintaxis:

const tls.DEFAULT_MIN_VERSION

Parámetros: Este método no acepta ningún parámetro.

Valor devuelto: este método devuelve el valor predeterminado de la opción minVersion de tls.createSecureContext().

¿Cómo generar la clave privada y el certificado público?

1. Clave privada: abra el bloc de notas y copie y pegue la siguiente clave:

   -----BEGIN RSA PRIVATE KEY-----
   MIICXQIBAAKBgQC38R9wXcUbhOd44FavgmE5R3K4JeYOHLnI7dUq1B8/Gv7l3SOg
   JKef/m9gM1KvUx951mapXGtcWgwB08J3vUE2YOZ4tWJArrVZES0BI/RmFAyhQFP5
   HcWl3LSM9LRihP98F33oIkKaCxA5LxOrkgpV4HrUzIKTABDYah7RPex1WQIDAQAB
   AoGBAIXR71xxa9gUfc5L7+TqBs+EMmrUb6Vusp8CoGXzQvRHMJCMrMFySV0131Nu
   o0YYRDsAh1nJefYLMNcXd1BjqI+qY8IeRsxaY+9CB2KKGVVDO2uLdurdC2ZdlWXT
   Vwr3dDoyR0trnXJMmH2ijTeO6bush8HuXxvxJBjvEllM5QYxAkEA3jwny9JP+RFu
   0rkqPBe/wi5pXpPl7PUtdNAGrh6S5958wUoR4f9bvwmTBv1nQzExKWu4EIp+7vjJ
   fBeRZhnBvQJBANPjjge8418PS9zAFyKlITq6cxmM4gOWeveQZwXVNvav0NH+OKdQ
   sZnnDiG26JWmnD/B8Audu97LcxjxcWI8Jc0CQEYA5PhLU229lA9EzI0JXhoozIBC
   TlcKFDuLm88VSmlHqDyqvF9YNOpEdc/p2rFLuZS2ndB4D+vu6mjwc5iZ3HECQCxy
   GBHRclQ3Ti9w76lpv+2kvI4IekRMZWDWnnWfwta+DGxwCgw2pfpleBZkWqdBepb5
   JFQbcxQJ0wvRYXo8qaUCQQCgTvWswBj6OTP7LTvBlU1teAN2Lnrk/N5AYHZIXW6m
   nUG9lYvH7DztWDTioXMrruPF7bdXfZOVJD8t0I4OUzvC
   -----END RSA PRIVATE KEY-----
   

   Ahora guarde el archivo como llave privada.pem

2. Certificado público: abra el bloc de notas y copie y pegue la siguiente clave:

   -----BEGIN CERTIFICATE-----
   MIICfzCCAegCCQDxxeXw914Y2DANBgkqhkiG9w0BAQsFADCBgzELMAkGA1UEBhMC
   SU4xEzARBgNVBAgMCldlc3RiZW5nYWwxEDAOBgNVBAcMB0tvbGthdGExFDASBgNV
   BAoMC1BhbmNvLCBJbmMuMRUwEwYDVQQDDAxSb2hpdCBQcmFzYWQxIDAeBgkqhkiG
   9w0BCQEWEXJvZm9mb2ZAZ21haWwuY29tMB4XDTIwMDkwOTA1NTExN1oXDTIwMTAw
   OTA1NTExN1owgYMxCzAJBgNVBAYTAklOMRMwEQYDVQQIDApXZXN0YmVuZ2FsMRAw
   DgYDVQQHDAdLb2xrYXRhMRQwEgYDVQQKDAtQYW5jbywgSW5jLjEVMBMGA1UEAwwM
   Um9oaXQgUHJhc2FkMSAwHgYJKoZIhvcNAQkBFhFyb2ZvZm9mQGdtYWlsLmNvbTCB
   nzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAt/EfcF3FG4TneOBWr4JhOUdyuCXm
   Dhy5yO3VKtQfPxr+5d0joCSnn/5vYDNSr1MfedZmqVxrXFoMAdPCd71BNmDmeLVi
   QK61WREtASP0ZhQMoUBT+R3Fpdy0jPS0YoT/fBd96CJCmgsQOS8Tq5IKVeB61MyC
   kwAQ2Goe0T3sdVkCAwEAATANBgkqhkiG9w0BAQsFAAOBgQATe6ixdAjoV7BSHgRX
   bXM2+IZLq8kq3s7ck0EZrRVhsivutcaZwDXRCCinB+OlPedbzXwNZGvVX0nwPYHG
   BfiXwdiuZeVJ88ni6Fm6RhoPtu2QF1UExfBvSXuMBgR+evp+e3QadNpGx6Ppl1aC
   hWF6W2H9+MAlU7yvtmCQQuZmfQ==
   -----END CERTIFICATE-----
   

   Ahora guarde el archivo como public-cert.pem

Ejemplo 1: Nombre de archivo: index.js

// Node.js program to demonstrate the
// tls.DEFAULT_MIN_VERSION method
  
var tls = require('tls'),
    fs = require('fs'),
  
    // Port and host address for server    
    PORT = 1337,
    HOST = '127.0.0.1',
    value = null;
  
// Private key and public certificate
// for access
var options = {
    key: fs.readFileSync('private-key.pem'),
    cert: fs.readFileSync('public-cert.pem'),
    rejectUnauthorized: false
};
  
// Creating and initializing server
var server = tls.createServer(options,
    function (socket) {
  
        // Print the data that we received
        socket.on('data', function (data) {
            console.log('\nReceived: %s ',
                data.toString().replace(/(\n)/gm, ""));
        });
  
        // Stopping the server
        // by using the close() method
        server.close(() => {
            console.log("Server closed successfully");
        });
    });
  
// Start listening on a specific port and address
// by using listen() method
server.listen(PORT, HOST, function () {
    console.log(
        "I'm listening at %s, on port %s",
        HOST, PORT);
});
  
// Creating and initializing client
var client = tls.connect(PORT, HOST,
    options, function () {
  
        // Getting max version
        // by using tls.DEFAULT_MIN_VERSION method
        value = tls.DEFAULT_MIN_VERSION;
  
        client.write(" min version : " + value);
  
        client.end(() => {
            console.log("Client closed successfully");
        });
  
    });

Ejecute el archivo index.js con el siguiente comando:

node index.js

Producción:

I'm listening at 127.0.0.1, on port 1337
Client closed successfully

Received:  min version : TLSv1.2
Server closed successfully

Ejemplo 2: Nombre de archivo: index.js

// Node.js program to demonstrate the
// tls.DEFAULT_MIN_VERSION method
  
var tls = require('tls'),
    fs = require('fs'),
  
    // Port and host address for server    
    PORT = 1337,
    HOST = '127.0.0.1';
  
// Private key and public certificate
// for access
var options = {
    key: fs.readFileSync('private-key.pem'),
    cert: fs.readFileSync('public-cert.pem'),
    rejectUnauthorized: false
};
  
// Creating and initializing server
var server = tls.createServer(options,
    function (socket) {
  
        // Getting max version by using
        // tls.DEFAULT_MIN_VERSION method
        value = tls.DEFAULT_MIN_VERSION;
  
        socket.write(" min version : " + value);
  
        // Stopping the server by using
        // the close() method
        server.close(() => {
            console.log("Server closed successfully")
        });
    });
  
// Start listening on a specific port and
// address by using listen() method
server.listen(PORT, HOST, function () {
    console.log(
        "I'm listening at %s, on port %s", 
        HOST, PORT);
});
  
// Creating and initializing client
var client = tls.connect(PORT, HOST, 
    options, function () {
        console.log("client is connected");
});
  
client.on("data", function (data) {
  
    console.log('Received: %s',
        data.toString().replace(/(\n)/gm, ""));
  
    // Close the connection after receiving
    // the message
    client.end(() => {
        console.log("client closed successfully")
    });
});

Ejecute el archivo index.js con el siguiente comando:

node index.js

Producción:

I'm listening at 127.0.0.1, on port 1337
client is connected
Received:  min version : TLSv1.2
client closed successfully
Server closed successfully

Referencia: https://nodejs.org/dist/latest-v12.x/docs/api/tls.html#tls_tls_default_min_version