Node.js tls。DEFAULT_MAX_VERSION 方法
原文:https://www . geesforgeks . org/node-js-TLS-default _ max _ version-method/
tls。DEFAULT_MAX_VERSION 是 tls 模块内 TLS 类的内置应用编程接口，用于返回 tls.createSecureContext()的 maxVersion 选项的默认值。
语法:
const tls.DEFAULT_MAX_VERSION
参数:此方法不接受任何参数。
返回值:此方法返回 tls.createSecureContext()的 maxVersion 选项的默认值。
如何生成私钥和公钥证书？
-
Private key: Open notepad and copy paste the following key:
```js -----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-----
```
现在将文件保存为私钥. pem
-
公共证书:打开记事本复制粘贴以下密钥:
```js -----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-----
```
现在将文件保存为公钥. pem
示例 1: 文件名:index.js
// Node.js program to demonstrate the
// tls.DEFAULT_MAX_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_MAX_VERSION method
value = tls.DEFAULT_MAX_VERSION;
client.write(" max version : " + value);
client.end(() => {
console.log("Client closed successfully");
});
});
使用以下命令运行 index.js 文件:
node index.js
输出:
I'm listening at 127.0.0.1, on port 1337
Client closed successfully
Received: max version : TLSv1.3
Server closed successfully
示例 2: 文件名:
// Node.js program to demonstrate the
// tls.DEFAULT_MAX_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_MAX_VERSION method
value = tls.DEFAULT_MAX_VERSION;
socket.write(" max 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")
});
});
使用以下命令运行 index.js 文件:
node index.js
输出:
I'm listening at 127.0.0.1, on port 1337
client is connected
Received: max version : TLSv1.3
client closed successfully
Server closed successfully
参考:https://nodejs . org/dist/latest-v 12 . x/docs/API/TLS . html # TLS _ TLS _ default _ max _ version
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