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Re: [lwip-users] mbedtls
From: |
address@hidden |
Subject: |
Re: [lwip-users] mbedtls |
Date: |
Mon, 17 Feb 2020 21:38:37 +0100 |
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Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 |
Am 17.02.2020 um 18:09 schrieb Trampas Stern:
> Does anyone know how on an embedded platform to setup the entropy using
> mbedtls?
I did that, but it's been a while, and I don't remember from the top of
my head.
I think you *can* use a string entropy source and implement that
correctly or you can enable some kind of debug option that says
somethink like "this is for testing only; using no entropy is ok"...
>
> Specifically I am trying to get https running with lwip and getting an
> assertion failure:
>
> Assertion "httpd_init: altcp_tls_new failed" failed at line 2872 in
> ../src/libraries/lwip/src/apps/http/httpd.c
>
> Which I think is because of lack of entropy functions.
>
> I did try defining ALTCP_MBEDTLS_ENTROPY_PTR
> and ALTCP_MBEDTLS_ENTROPY_LEN but that seems to cause hard faults, when
> I assign it to a function pointer that generates a random number.
That seems strange.
Regards,
Simon
- [lwip-users] mbedtls, Trampas Stern, 2020/02/17
- Re: [lwip-users] mbedtls,
address@hidden <=
- Re: [lwip-users] mbedtls, Trampas Stern, 2020/02/17
- Re: [lwip-users] mbedtls, Trampas Stern, 2020/02/18
- Re: [lwip-users] mbedtls, Simon Goldschmidt, 2020/02/18
- Re: [lwip-users] mbedtls, Trampas Stern, 2020/02/18
- Re: [lwip-users] mbedtls, Trampas Stern, 2020/02/18
- Re: [lwip-users] mbedtls, tomek wilkxt, 2020/02/19
- Re: [lwip-users] mbedtls, Trampas Stern, 2020/02/19
- Re: [lwip-users] mbedtls, address@hidden, 2020/02/19