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Update README.md: Added information about session ticket feature

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- Enabled client session tickets as default in https_request example
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Laukik Hase 2021-09-15 16:17:28 +05:30 committed by Aditya Patwardhan
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examples/protocols/https_request/README.md
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@ -4,6 +4,13 @@ Uses APIs from `esp-tls` component to make a very simple HTTPS request over a se
(See the README.md file in the upper level 'examples' directory for more information about examples.)
### Session Tickets
Session Tickets, specified in [RFC 5077](https://datatracker.ietf.org/doc/html/rfc5077) are a mechanism to distribute encrypted
session-state information to the client in the form of a ticket and a mechanism to present the ticket back to the server. The ticket is created by a TLS server and sent to a TLS client. The TLS client presents the ticket to the TLS server to resume a session. In TLS 1.2, this speeds up handshakes from two to one round-trip.
In ESP-IDF, this feature is supported (for both server and client) when mbedTLS is used as the SSL library.
## How to use example
Before project configuration and build, be sure to set the correct chip target using `idf.py set-target <chip_name>`.
@ -19,6 +26,15 @@ idf.py menuconfig
```
Open the project configuration menu (`idf.py menuconfig`) to configure Wi-Fi or Ethernet. See "Establishing Wi-Fi or Ethernet Connection" section in [examples/protocols/README.md](../../README.md) for more details.
#### Configuring Client Session Tickets
Note: This example has client session tickets enabled by default.
* Open the project configuration menu (`idf.py menuconfig`)
* In the `Component Config` -> `ESP-TLS` submenu, select the `Enable client session tickets` option.
Ensure that the server has the session tickets feature enabled.
### Build and Flash
Build the project and flash it to the board, then run monitor tool to view serial output:

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examples/protocols/https_request/sdkconfig.defaults Normal file
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CONFIG_ESP_TLS_CLIENT_SESSION_TICKETS=y