Hi,
I'm trying to integrate NXPs secure element SE050 into an application running on MSP432E401Y chip.
I was able to successfully integrate their middleware(Plug and trust) on a baremetal project with mbedTLS enabled.
It seems on this baremetal project, entropy_source (from entropy_alt.c) is not working. And this has a knock on effect on mbedtls_ctr_drbg_seed function which fails and takes the entire project down with it.
Also, from the sole example given in the Simplelink SDK (tcpechotls), I see that mbedtls is used in a project with RTOS enabled.
Should I try integrating this code in an RTOS based project and check? Has anyone worked on this ?
Thanks,
Devi Pandurangan
Lead Engineer - Embedded Software
Armstrong Fluid Technology
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Hello Younes,
I assume that you recently joined the list here.
In that case: Please welcome!
Since ole times of Usenet it is a common behaviour to first subscribe a
list/channel and listen to the posts.
After some time write your own first email to the list, introduce
yourself quickly and write about your problem.
But please do never start with an email carrying "URGENT" in subject.
This is not politely.
See, the people maintaining this list do this without any fees. The
spent their time to answer questions "from the community" for free.
And they do it well! Hence please avoid galopping in here. ;-)
You want https and sftp implementations, which are layer 7 and actually
mostly on a different/higher layer then mbed TLS.
And they are not trivial - there is NO SIMPLE implementation!
Please compare it to projects like e.g. Apache or OpenSSH: The people
required months/years to get an implementation.
Regarding the C code you sent: Obviously it is at least partly coming
from STM and it has a size of more than 50 KiB.
Why did you sent that? This is not just a code snippet of a few lines.
Did you actually expect that anyone would analyze it?
Maybe someone is on this list who knows the code and can give you some
hints. But don't expect a "working example of https and sftp".
Hence my personal answer:
- Basic examples like "client" and "server" are already provided by mbed
TLS! You just need to extend them with https and sftp protocol.
- If you want to use a SIMPLE implementation then please use Python or
Java/Groovy. Because then you don't need to know most of the technical
details of https and sftp.
- If you are looking for many "working examples" of code then you should
also think about using a lib like OpenSSL which is mostly used.
And please be politely. Please remember that the people here are giving
support for free. Great support for free.
cheers,
Frank
On 03.05.21 21:11, Younes Boulahya via mbed-tls wrote:
> I am using STM32F303RCT6 and W5500, I want to upgrade to HTTPS and
> SFTP, but I can't find any working example that I can use, can you
> provide me a simple one PLEASE, of both HTTPS and SFTP.
>
> I attach my current c code, thank you so much 🌷
>
--
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SAP Hybris & Linux LPIC-3, E-Mail tx2014(a)tuxad.de, USt-IdNr DE237314606
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Hi Brian,
It's not clear to me what you're trying to do. Mbed TLS supports
Curve25519 arithmetic for X25519, accessible through the
mbedtls_ecdh_xxx interface. If you want to use Curve25519 for some other
purpose, this may or may not be supported via direct access to the
mbedtls_ecp_xxx interface. The curve arithmetic code only supports
predefined groups, it does not support changing the generator without
patching the library.
For Curve25519, the generator is the point (X,Z)=(9,1). Isn't this the
generator you want?
Best regards,
--
Gilles Peskine
Mbed TLS developer
On 30/04/2021 17:39, Brian via mbed-tls wrote:
> Hi all,
> I'm trying to set the generator g to a value of 9 for the Curve25519 with mbedtls_ecp_gen_key function. However I cannot find any way to accomplish that.
> Could anyone help me?
> Thank you, have a nice day,Brian
<mbed-tls(a)lists.trustedfirmware.org>I am using STM32F303RCT6 and W5500, I
want to upgrade to HTTPS and SFTP, but I can't find any working example
that I can use, can you provide me a simple one PLEASE, of both HTTPS and
SFTP.
I attach my current c code, thank you so much 🌷
