This is an ESP8266 port of axTLS library, currently based on axTLS 2.1.2 (SVN version 274).
This library supports TLS 1.2, and the following cipher suites:
| Cipher suite name (RFC) | OpenSSL name | Key exchange | Encryption | Hash |
|---|---|---|---|---|
| TLS_RSA_WITH_AES_128_CBC_SHA | AES128-SHA | RSA | AES-128 | SHA-1 |
| TLS_RSA_WITH_AES_256_CBC_SHA | AES256-SHA | RSA | AES-256 | SHA-1 |
| TLS_RSA_WITH_AES_128_CBC_SHA256 | AES128-SHA256 | RSA | AES-128 | SHA-256 |
| TLS_RSA_WITH_AES_256_CBC_SHA256 | AES256-SHA256 | RSA | AES-256 | SHA-256 |
Using the library
This is not a self-sufficient library. In addition to the standard C library functions, application has to provide the following functions:
ax_port_read
ax_port_write
ax_port_open
ax_port_close
ax_get_file
phy_get_rand (provided by the IoT SDK)
ets_printf (in ESP8266 ROM)
ets_putc (in ESP8266 ROM)
For use with LwIP raw TCP API, see compat/README.md
Building 
To build, add xtensa toolchain to your path, and run make. The library will be built in bin/ directory.
Credits and license
axTLS is written and maintained by Cameron Rich.
Other people have contributed to this port; see git logs for a full list.
See LICENSE file for axTLS license.