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是否有一个模块来控制 python 中的 SSL 握手，客户端和服务器？python 默认的 SSL 模块很棒，但是握手是自动的。我想知道是否有一个模块可以让我手动执行类似于此的操作：

import SSLManuel
import socket

s = socket.socket()
s.connect(("server.com",9999))

ClientHello = SSLManuel.generateClientHelloMessage(ssl=TLSv1_2, cipher="ECDHE-RSA-AES128-GCM-SHA256", server="www.server.com")
s.send(ClientHello)
ServerHello = s.recv()#this would receive the server hello
#This would verify the certificate of the server
if SSLManuel.check_cert(ServerHello) == true:
    Pre-Master-Key = SSLManuel.generatePreMasterKey()
    ClientKeyExchange = SSLManuel.generateClientKeyExchange(Pre-Master-Key)
    ChangeCiherSpec = SSLManuel.generateChangeCipherSpec()
    ClientFinished = SSLManuel.generateClientFinished()
    Sessionkey = SSLManuel.generateMasterKey(Pre-Master-Key)
    s.send(ClientKeyExchange)
    s.send(ChangeCiherSpec)
    s.send(ClientFinished)
    ServerFinished = s.recv()
    #This will check if the server is ready to communicate securely. 
    if SSLManuel.checkServerFinshed(ServerFinished) == true:
        #I can …