ESP8266 AES256 / firmware protection / encrypted bootcode

[rudi]

Hi

my name is rudi and i come from germany.

I will show you as preview my works last weeks in this now.
I will update the uncuted videos asap - sorry for the qualitity.

Webserver with AES256
you will be identify encrypted

http://youtu.be/2RqG_T-iinE


protected AT Version with AES256
you can communicate in AES256 over UART, SPI, I2C, (H)SPI and more
AT Commands for testings..

http://youtu.be/eVfmBTm5Isg

protected developer key AT+GMR and more extended security tags
this will be a must have - and if you use - you will never missed - i am sure
i work with this for Industry 4.0 Apps and more ( database application mesh network with auto configured esp8266 for P2P automation .. ( > 500 pcs )

http://youtu.be/QjjikxtHoCI

LIB: http://www.mikrocontroller.net/attachme ... ibaes256.a

with an own bootloader i boot in an asap comming project
from sd card part of encrypted bootcode (firmware) ( copy protected part )
and transfer it to iram... protected and run this mapped/direct
details for this only you give me gift, wifes, cars, (drugs-no this is bad!) , rockn roll and other good things
fun! will ´think about this .. but just in time - only libs because this is many month work in bootcode and more -


@stanza
ESP8266 goes AES256 now with own bootcode
done!



best wishes
rudi

ps

and yes
will post all here as a small project and describe all fine.
please be patient, i am work at other project until this weekend
and then i will update all here with all docu step by step , examples and more.

feel free for google search: ESP8266 AES256

The first you will find - is the best german Forum where i be 'at Home'

greetings fly out to friends all over the globe



my base was:

Free AES256 ECB Implantation
will post more and a sample project next time.

[rudi]

hi

small Continued:

have you a short time at you tube?
have phun: https://www.youtube.com/watch?v=Q0VWK4UHcg8

extended:

1st step was done:
i tested an open src bootloader named 'rboot'
i extended open src Bootloader with AES256 support in a test (aes256.a)
user firmware is on the SDHC

next step:
- 2) user firmware is encrypted on the SDHC and will decrypt on the fly
- 3) bootloader is on sdhc and esp will boot from sd card without flash ic
- 4) be surprised!


continued Description and final code will follows later time with a projekt.

best wishes
rudi

info: opens src bootloader
https://github.com/raburton/esp8266/tree/master/rboot

rBoot is designed to be a flexible open source boot loader, a replacement for
the binary blob supplied with the SDK. It has the following advantages over the
Espressif loader:

- Open source (written in C)
- Supports up to 256 roms.
- Roms can be variable size.
- Able to test multiple roms to find a valid backup (without resetting).
- Flash layout can be changed on the fly (with care and appropriately linked
rom images).
- GPIO support for rom selection.
- Wastes no stack space (SDK boot loader uses 144 bytes).
- Documented config structure to allow easy editing from user code.
- Can validate .irom0.text section with checksum.