Tips-Of-Mine/Applications
2
0
Fork 0
Code Pull Requests Wiki Activity

update

Browse Source
This commit is contained in:
Hubert Cornet
2024-04-03 22:04:13 +02:00
parent 7e68609006
commit 0b373d31db
142 changed files with 7334 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
networking/tls.md Normal file
View File

@@ -0,0 +1,43 @@
# TLS
## TLS Handshake
In a TLS/SSL handshake, clients and servers exchange SSL certificates, cipher suite requirements, and randomly generated data for creating session keys.
TLS handshakes are a foundational part of how HTTPS works.
SSL, or Secure Sockets Layer, was the original encryption protocol developed for HTTP. SSL was replaced by TLS, or Transport Layer Security, some time ago. SSL handshakes are now called TLS handshakes, although the "SSL" name is still in wide use.
```
┌───────────┐ ┌───────────┐
│  Client │ │  Server │
└─────┬─────┘ └─────┬─────┘
│ │
│ │
│ ─────────────────────────► │ ──┐
│ 1. SYN │ │
│ │ │
│ │ │ TCP
│ ◄───────────────────────── │ │
│ 3. ACK 2. SYN ACK │ ──┘
│ │
│ -------------------------- │
│ │
│ ─────────────────────────► │ ──┐
│ 4. ClientHello │ │
│ │ │
│ ◄───────────────────────── │ │
│ 5. ServerHello │ │
│ Certificate │ │
│ ServerHelloDone │ │
│ │ │ TLS
│ ─────────────────────────► │ │
│ 6. ClientKeyExchange │ │
│ ChangeCipherSpec │ │
│ Finished │ │
│ │ │
│ ◄───────────────────────── │ │
│ 7. ChangeCipherSpec │ │
│ Finished │ ──┘
```