Ssl
SSL (Secure Socket Layer) is simply a cryptographic technique through which we can establish a secure communication link on both sides of the communication, so that both sides of the data interaction can communicate securely without worrying about the data being stolen. For an in-depth knowledge of SSL, you can read this article: overview of the operating mechanism of SSL/TLS protocol
Wss
WSS is the abbreviation for Web Socket Secure, which is an encrypted version of WebSocket. We know that the data in the WebSocket is not encrypted, but the unencrypted data is easily stolen by people with ulterior motives, so in order to protect data security, people will WebSocket and SSL to achieve secure WebSocket communication, that is WebSocket secur E. So WSS is a WebSocket communication technology that uses SSL for encryption.
HTTPS
In fact, HTTPS and WSS similar, HTTP to HTTPS like WebSocket to WebSocket Secure.http protocol itself is also clear-text transmission, so in order to secure the data, people use SSL as an encrypted channel, over the SSL pass HTTP data, so the HTTP protocol running on the SSL encrypted channel is called HTTPS.
Summarize
SSL is the basis for running the WebSocket protocol on SSL is WSS; Running the HTTP protocol on SSL is HTTPS.
Source: https://segmentfault.com/q/1010000007391137/a-1020000007391991
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The relationship between WSS, SSL, and HTTPS