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stm32 mcu firmware ssh and sftp support

We are producer of industrial GSM modems. We have TCP/IP Stack and we can communicate at TCP level. The structure is simply MCU (STM32F4) + GSM Module. At the MCU side, we have to execute SSH and SFTP functions. SSH is generally used at PC, but our platform is an MCU. So the open libraries spend much memory. We need a library especially for low FLASH and SRAM usage.

Requirements :

- C language Source code must be delivered with remarks and example project.

- Commercial SSH and crypto libraries will not be used, license-free source can be used.

- SSH Server and Client must be supported, SSH version 2.

- SFTP Server and Client must be supported.

- Resultant code must include functions that act as bridge from raw data to SSH and from SSH to raw data.

- Maximum SRAM Buffer size will be 30 KB (selectable size with #define), smaller is better!

- Functions must be able to handle non-ASCII data buffers (any hex data).

- Data transfer must be divided into packages of maximum 1400 Bytes (selectable size with #define)

- We have TCP/IP Stack on GSM Module, so the resultant code must use UARTS only, representing the TCP layer. For testing, we will provide a PC program that converts UART data to TCP and vice versa.

- 6 months support

- The resultant code will be tested on STM32F412RET6 and must be able to communicate with a Linux Machine, on which we will execute these commands (from MCU to Linux and from Linux to MCU) :

- SSH

- SFTP

- SCP

Навыки: Микроконтроллер, Электроника, Программирование на С, Встроенное ПО

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( 0 отзыв(-а, -ов) ) Istanbul, Turkey

ID проекта: #23735047

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CoherentTech123

Dear Sir, I am an expert with more than 20 years of experience in firmware development, Programming and prototype development. Over the past many years, I have developed several complex industrial, medical and Больше

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6.4

10 фрилансеров(-а) готовы выполнить эту работу в среднем за $680

ahmad5857

Hi Sir, we have expertise in embedded system engineering, we can help you in your project. Lets talk to us on it. We are professional engineers and developers who do such projects from the last 10+ years. We offer y Больше

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6.7
hayat38402

We are a team of Electrical and Electronics engineers and we are Excellent in the following areas: • Embedded C Programming. • VHDL/Verilog • Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC and STM32. • ID Больше

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hsh564cf84accd96

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4.9
nevorek

Hi. I can develop library which use opensource library at low level. I work with trackers and communication devices so have lot of experience in working with modems. I have my own drivers for couple of modems. I think Больше

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intellisenseIN

Hi there, This is possible. My name is Jaspreet & I'm part of larger embedded hardware and firmware development team. I already programmed STM32 MCU like STM32F4Discovery and STM32F030-Discovery using STM32CubeMX an Больше

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mquesada90

Hi there. Thank you for your posting. I am Marvin and I have a lot of experience in developing the embedded systems and IoT. I have developed many projects using Raspberry Pi, Arduino devices, ESP series, STM32, dsPIC, Больше

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m4lien

Hello. I am a senior Microcontroller developer and electronic engineer. After reading your description, I am very interested in your project. I can develop the PIC, Atmega, STM32, Arduino, ARM, FPGA and designed the c Больше

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0.0
HenryTrans

hello I have experienced in Microcontroller programming with STmF4 for a long time. You can send me information and I can do it with a cheaper or more reasonable price than everyone. I have a lot of experience working Больше

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labved

Im Instrumentation Control Engineer by proffession, have close to 10 years experience worked in firms such as Yokogawa, Technip (Fortune 500 Company's). ABOUT US We are based out of Chennai, India, We are a Research Больше

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