Creation of OpenSSL library on STM32F4 controller based on ARM Cortex M4 in RTOS environment

Question

I am considering developing an integrated bluetooth application with openSSL-FIPS support on the STM32F407 microcontroller (which is an ARM Cortex M4). The application does not work on a common OS such as Linux, Windows or andriod, but it works on CMSIS-RTX RTOS. I use Keil on Windows as a development environment with the built-in armc compiler (armcc) to compile.

During my analysis, I found the OpenSSL wiki, which explains how to create and install the openSSL library: "Compile and Install." On the page, although there is a compilation section for the ARM platform, there is no description of how to do this.

I also reviewed some of the discussions in stackoverflow regarding cross-compiling openSSL in ARM. But all theses are based on ARM + Linux, and not one of them is in RTOS.

• Cross compiling openssl for the linux arm-v5te-linux-gnueabi toolbar

• Compile OpenSSH for ARM

• How to link openssl library with arm-cross compiler

I also looked at the following link when compiling with ARM

• How to create OpenSSL for ARM

But the compiler listed here is GCC.

• Is there a library that can be used on the specified platform?

• Is it possible to open openSSL on an ARM Cortex M4 platform using RTOS ?. To be more specific, is it possible to port it to STM32F407 using CMSIS RTX?

• If possible, where should I start and how difficult is it ?.

• openSSL GCC , ? ( , )

• SSL ? ( , WolfSSL )

Answer 1

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• openSSL ARM cortex m4, -,

  • OpenSSL - openssl-too-large 800K . , , STM32F4 . STM32F-datasheet

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  • wolfSSL FIPS, STM32 ( CMSIS-RTX RTOS) 60-80K . [e-mail] : wolfssl-forums

  • wolfSSL Keil MDK5 RTX

  • wolfssl-fips

  • wolfssl-stm32

  • wolfssl-vs-openssl-footprint