best protocol for ARM to send big file (<200 KB)

 best protocol for ARM to send big file (<200 KB)

Dear list members,

Please help to recommend standard protocol (such as FTP, SMTP, SOAP?) for ARM m3 or ARM9 to send jpg or binary file to server (assume server can support any protocol)

1. File size <200 kB (two hundred KB)
2. Mosly JPG file taken by serial camera.
3. Sending using GPRS (slow), we use SIMCOM, SIM900 and SIM548C

We do not want to use FTP for security reason, I do not have experience with SOAP.

Thank you very much for your kind help and attention

Ojahan

 RE: best protocol for ARM to send big file (<200 KB)

Simplest may be to use https and upload the images - basically emulating a web browser that uploads images to a web server.

This have advantages if the server also needs some administrative interfaces that should be remotely accessible.

Another alternative is to just use OpenSSL and just create a raw encrypted channel and send the file and then close - a minimum of protocol. Maybe informing file name + time + terminal name before sending the image data.

You may look at sftp, also known as SSH File Transfer Protocol.

 RE: best protocol for ARM to send big file (<200 KB)

Per Thank you for the information.
Https will be our first try.
I see RL-ARM does not yet support/provide SFTP or SSL.