The server.getTicketKeys() is an inbuilt application programming interface of class Socket within tls module which is used to get a 48-byte buffer containing the session ticket keys.
Syntax:
const server.getTicketKeys()
Parameters: This method does not accept any parameter.
Return Value: This method returns a 48-byte buffer containing the session ticket keys.
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-----
Save the file as a 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-----
Save the file as public-cert.pem
Example 1: Filename: index.js
// Node.js program to demonstrate the // server.getTicketKeys() 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) {
// 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();
}); // Getting session key // by using getTicketKeys() method const value1 = server.getTicketKeys(); console.log(value1) // Close event server.on( 'close' , () => {
console.log( "Server closed successfully" );
}) // Start listening on a specific port and address 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 the bound address
// by using address method
const value = client.address();
client.write( "Bound address : " + value)
client.end();
}); |
Output:
<Buffer 72 59 e4 89 85 0f ae fb eb e6 cb 3a 1a bf 92 19 2f ab 97 be 5d 10 19 50 cc 0f 98 d3 27 fe 9c 68 2a 31 f3 e8 17 b7 77 38 88 f0 28 64 90 1c 36 40> I’m listening at 127.0.0.1, on port 1337 Received: Bound address : [object Object] Server closed successfully
Example 2: Filename: index.js
// Node.js program to demonstrate the // server.getTicketKeys() 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) {
// Print the data that we received
socket.on( 'data' , function (data) {
console.log( '\nReceived: %s ' ,
data.toString());
});
// Stopping the server
// by using the close() method
server.close();
}); // getting session key // by using getTicketKeys() method value = server.getTicketKeys(); // Start listening on a specific port and address 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 () {
client.write( "Session key : " + value[0])
client.end();
}); |
Run the index.js file using the following command:
node index.js
Output:
I'm listening at 127.0.0.1, on port 1337 Received: Session key : 222
Reference: https://nodejs.org/dist/latest-v12.x/docs/api/tls.html#tls_server_getticketkeys