golang简单实现一个基于TLSSSL的 TCP服务器和客户端_语言综合

概述本篇文章介绍一下使用TLS/SSL创建安全的TCP通信,首先我们要准备一个数字证书和一个密钥关于如何产生密钥,请看下面文章： Author: 岳东卫 Email: [email protected] 通过Openssl创建数字证书和密钥 TLS服务器端代码 TLS客户端代码通过Openssl创建数字证书和密钥关于如何通过Openssl创建证书和私钥 TLS服务器端代码 package ma

本篇文章介绍一下使用TLS/SSL创建安全的TCP通信,首先我们要准备一个数字证书和一个密钥关于如何产生密钥,请看下面文章：

Author: 岳东卫
Email: [email protected]

通过Openssl创建数字证书和密钥 TLS服务器端代码 TLS客户端代码通过Openssl创建数字证书和密钥

关于如何通过Openssl创建证书和私钥

TLS服务器端代码

package mainimport (    "crypto/rand"    "crypto/tls"    "fmt"    "log"    "net"    "time")func HandleClIEntConnect(conn net.Conn) {    defer conn.Close()    fmt.Println("Receive Connect Request From ",conn.RemoteAddr().String())    buffer := make([]byte, 1024)    for {        len,err := conn.Read(buffer)        if err != nil {            log.Println(err.Error())            break        }        fmt.Printf("Receive Data: %s\n",string(buffer[:len]))        //发送给客户端        _,err = conn.Write([]byte("服务器收到数据:" + string(buffer[:len])))        if err != nil {            break        }    }    fmt.Println("ClIEnt " + conn.RemoteAddr().String() + " Connection Closed.....")}func main() {    crt,err := tls.LoadX509KeyPair("server.crt","server.key")    if err != nil {        log.Fatalln(err.Error())    }    tlsConfig := &tls.Config{}    tlsConfig.Certificates = []tls.Certificate{crt}    // Time returns the current time as the number of seconds since the epoch.    // If Time is nil,TLS uses time.Now.    tlsConfig.Time = time.Now    // Rand provIDes the source of entropy for nonces and RSA blinding.    // If Rand is nil,TLS uses the cryptographic random reader in package    // crypto/rand.    // The Reader must be safe for use by multiple goroutines.    tlsConfig.Rand = rand.Reader    l,err := tls.Listen("tcp",":8888",tlsConfig)    if err != nil {        log.Fatalln(err.Error())    }    for {        conn,err := l.Accept()        if err != nil {            fmt.Println(err.Error())            continue        } else {            go HandleClIEntConnect(conn)        }    }}

TLS客户端代码

package mainimport (    "crypto/tls"    "fmt"    "io"    "time"    "log")func main() {    //注意这里要使用证书中包含的主机名称    conn,err := tls.Dial("tcp","abc.com:8888",nil)    if err != nil {        log.Fatalln(err.Error())    }    defer conn.Close()    log.Println("ClIEnt Connect To ",conn.RemoteAddr())    status := conn.ConnectionState()    fmt.Printf("%#v\n",status)    buf := make([]byte, 1024)    ticker := time.NewTicker(1 * time.Millisecond * 500)    for {        select {        case <-ticker.C:            {                _,err = io.WriteString(conn,"hello")                if err != nil {                    log.Fatalln(err.Error())                }                len,err := conn.Read(buf)                if err != nil {                    fmt.Println(err.Error())                } else {                    fmt.Println("Receive From Server:",string(buf[:len]))                }            }        }    }}