http.Handle("/",http.FileServer(http.Dir("/Users/administrator/Desktop/public")))
err := http.ListenAndServe("0.0.0.0:8080",nil)
if err!=nil{
  fmt.Print(err);
}

config.serverInitOnce.Do(config.serverInit) // 產(chǎn)生一個(gè)隨機(jī)數(shù)作為通信憑證，下次通信時(shí)憑證校驗(yàn)通過后直接通信，校驗(yàn)不通過重新建立連接
msg, err := c.readHandshake() // 解析clientHello信息，此時(shí)獲取到由客戶端生成的第一個(gè)隨機(jī)數(shù)
c.vers, ok = config.mutualVersion(hs.clientHello.vers) // 檢查客戶端與服務(wù)端tls版本是否一致
_, err = io.ReadFull(config.rand(), hs.hello.random) // 服務(wù)端產(chǎn)生第二個(gè)隨機(jī)數(shù)
hs.setCipherSuite(id, supportedList, c.vers) // 確認(rèn)加密算法

hs.cert, err = config.getCertificate(&ClientHelloInfo{
CipherSuites: hs.clientHello.cipherSuites,
ServerName: hs.clientHello.serverName,
SupportedCurves: hs.clientHello.supportedCurves,
SupportedPoints: hs.clientHello.supportedPoints,
});

skx, err := keyAgreement.generateServerKeyExchange(config, hs.cert, hs.clientHello, hs.hello) // 生成服務(wù)端摘要信息
c.writeRecord(recordTypeHandshake, helloDone.marshal()) //發(fā)送helloDone信息
preMasterSecret, err := keyAgreement.processClientKeyExchange(config, hs.cert, ckx, c.vers) // 處理獲取由客戶端生成的第三個(gè)隨機(jī)數(shù)
hs.masterSecret = masterFromPreMasterSecret(c.vers, hs.suite, preMasterSecret, hs.clientHello.random, hs.hello.random) // 生成通信秘鑰
hs.finishedHash.Write() // 服務(wù)端發(fā)送最后一次確認(rèn)請(qǐng)求