The tls.rootCertificates property is an inbuilt application programming interface of class TLS within tls module which is used to return the array of strings representing the root certificates.
Syntax:
const tls.rootCertificates
Return Value: This property returns the array of strings representing the root certificates.
How to generate a Private key and Public certificate?
- Private key: Open Notepad and copy and paste the following key:
-----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-----
- Now save the filename as private key.pem
- Public certificate: Open Notepad and copy and paste the following key:
-----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-----
- Now save the filename as public-cert.pem
Example 1: Filename: index.js
// Node.js program to demonstrate the // tls.rootCertificates method const 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 const options = { key: fs.readFileSync( 'private-key.pem' ),
cert: fs.readFileSync( 'public-cert.pem' ),
rejectUnauthorized: false
}; // Creating and initializing server const server = tls.createServer(options, function (socket) {a
// 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 const client = tls.connect(PORT, HOST, options, function () {
// Getting list of root certificate
// by using tls.rootCertificates method
value = tls.rootCertificates;
client.write( " rootCertificates : " + value[0]);
client.end(() => {
console.log( "Client closed successfully" );
});
}); |
Run the index.js file using the following command:
node index.js
Output:
I'm listening at 127.0.0.1, on port 1337 Client closed successfully Received: rootCertificates : -----BEGIN CERTIFICATE-----MIIDq...... WFACSCZLg==-----END CERTIFICATE----- Server closed successfully
Example 2: Filename: index.js
// Node.js program to demonstrate the // tls.rootCertificates method const 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 const options = { key: fs.readFileSync( 'private-key.pem' ),
cert: fs.readFileSync( 'public-cert.pem' ),
rejectUnauthorized: false
}; // Creating and initializing server const server = tls.createServer(options, function (socket) {
// Getting list of root certificate
// by using tls.rootCertificates method
value = tls.rootCertificates;
socket.write( " rootCertificates : " + value[0]);
// 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 const 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" )
});
}); |
Run the index.js file using the following command:
node index.js
Output:
I'm listening at 127.0.0.1, on port 1337 client is connected Received: rootCertificates : -----BEGIN CERTIFICATE ---- MIIDqDCCApC..........r1Uw njvVNioZBPRcHv/PLLf//qu0bXu+TZLg==-----END CERTIFICATE----- client closed successfully Server closed successfully
Reference: https://nodejs.org/dist/latest-v12.x/docs/api/tls.html#tls_tls_rootcertificates