通过套接字发送的python数据包是否为明文？

Question

标题几乎描述了这个问题：如果我发送的数据包中包含一些我不知道的内容，从一个python程序到另一个，如果黑客在网络上嗅探数据包，他们将能够看到包的内容？

Answer 1

If you use a plain TCP or UDP socket then the data you write into this socket are transferred in clear on the wire and can be sniffed unless the OS employs encryption at the network layer or lower layers, ie VPN technologies like IPSec, OpenVPN or similar.

If instead you are using an SSL wrapped socket then the data will be encrypted inside the application and thus protected against sniffing provided that the SSL socket was created with secure settings (strong ciphers, proper certificate validation).