Search found 10 matches

by julcol
Tue Nov 19, 2024 9:28 pm
Forum: General Discussion
Topic: host generated key if using idf.py encrypted-app-flash / encrypted-flash ?
Replies: 1
Views: 521

[solved] Re: host generated key if using idf.py encrypted-app-flash / encrypted-flash ?

As I understand and make it work, with idf 5.1.2 you can setup the secureboot signature file in menuconfig, but not the encryption key. Hence, I manually encrypt bootloader, partition and firmware ( micropython in my case), then I sign bootloader and firmware, and eventually I upload everything into...
by julcol
Tue Nov 19, 2024 9:25 pm
Forum: ESP-IDF
Topic: examples / hello_world / bootloader.elf section `.dram0.rodata' will not fit
Replies: 1
Views: 433

[solved] Re: examples / hello_world / bootloader.elf section `.dram0.rodata' will not fit

I did an idf.py fullclean ...but later I did not execute idf.py set-target esp32s3.

it was not on my dependencies neither, hence, the message.

Now all works. Hope this helps some newbie like me
by julcol
Tue Nov 19, 2024 9:21 pm
Forum: General Discussion
Topic: please add CPU/bandwith to forum server...painfully slow
Replies: 2
Views: 547

Re: please add CPU/bandwith to forum server...painfully slow[solved]

Now it rocks !!!! :lol:


We may need AI to defend us from AI. Its call meta-AI. Hopefully it lands in infinite-loop land.

Thanks.

JCG
by julcol
Sun Nov 17, 2024 6:15 pm
Forum: General Discussion
Topic: enabled encryption / secureboot2 on esp32s3 now esptool.py fails
Replies: 1
Views: 490

enabled encryption / secureboot2 on esp32s3 now esptool.py fails

I have setup flash encryption succesfully. Followed the steps of security workflows. I signed and encrypted with my host key, the signed versions of bootloader and application. Before flashing I check idf.py and it complains bootloader fail secure boot signtaure Valid secure boot key blocks: 0 No si...
by julcol
Sun Nov 17, 2024 5:15 pm
Forum: ESP-IDF
Topic: examples / hello_world / bootloader.elf section `.dram0.rodata' will not fit
Replies: 1
Views: 433

examples / hello_world / bootloader.elf section `.dram0.rodata' will not fit

Hi, I am following the guide in https://docs.espressif.com/projects/esp-idf/en/latest/esp32s3/security/security-features-enablement-workflows.html#enable-secure-boot-v2-externally So implement secureBoot. using one the programs in the examples folders. In step 7 I do idf.py build and I get .espressi...
by julcol
Sun Nov 17, 2024 12:47 pm
Forum: General Discussion
Topic: host generated key if using idf.py encrypted-app-flash / encrypted-flash ?
Replies: 1
Views: 521

host generated key if using idf.py encrypted-app-flash / encrypted-flash ?

Hello, I would like to understand where my host generated key need to be stored so the process of reflashing (whether dev/release mode) uses my encryption key. It does not seem I can add as a parameter or if there is a default place/name. My goal is actually to have a bunch of encrypted/signed firmw...
by julcol
Sun Nov 17, 2024 12:18 pm
Forum: General Discussion
Topic: please add CPU/bandwith to forum server...painfully slow
Replies: 2
Views: 547

please add CPU/bandwith to forum server...painfully slow

Hi,

to the powers to be.

I am in Europe. The forum runs like I was on 64Kb/s modem. Painfully. I am on 1G fiber......

Any possibility to consider an upgrade, welcome.

Regards.

JCG
by julcol
Tue Oct 29, 2024 7:08 am
Forum: ESP-IDF
Topic: esptool.py fails with error UnicodeDecodeError: 'utf-8' codec can't decode byte 0xf0 (micropython build)
Replies: 2
Views: 527

Re: esptool.py fails with error UnicodeDecodeError: 'utf-8' codec can't decode byte 0xf0 (micropython build)

I forgot to mention that before moving to release mode, in developer mode, things were fine. chip posted as encrypted, with local key and I could upload/download files in clear text. Its only after lock down and external encryption that just the flash of the app will produce the mentioned error Than...
by julcol
Tue Oct 29, 2024 1:52 am
Forum: ESP-IDF
Topic: esptool.py fails with error UnicodeDecodeError: 'utf-8' codec can't decode byte 0xf0 (micropython build)
Replies: 2
Views: 527

esptool.py fails with error UnicodeDecodeError: 'utf-8' codec can't decode byte 0xf0 (micropython build)

I am working in ubuntu platform and esp32s3 I am trying to build a custom micropython firmware. I have configured the system to use flash encryption, baked my host generated key into the efuses. I have encrypted bootloader/partition/app.bin--> micropython I run julian@portatilU:~/tmp/proyectos_pytho...