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Is it Possible about tcp stack???

 
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plowgrammer2010



Joined: 21 Jun 2009
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Is it Possible about tcp stack???
PostPosted: Sun Jun 21, 2009 11:46 pm     Reply with quote

Hi, All
I want have a project related to network security. is my given supposition is right.
I put my programmed "Device" with my computer, and on each packet receive event by "Device", I wrap a udp packet around the received packets after encryption. forward this udp packet to my second programmed "Device" which then gets data of udp packet decrypt that and put that packet on the wire which is attached with to the second computer.
Actually I want to encrypt all traffic and pass through public links to a specific point(e.g. specific switch).So, that public users across the way cannot access the actual packet from computer a to computer b.
Example:
if my computer wants to send VoIP packet to a pc(on a specific switch).I get the packet bytes XOR them with a byte(encrypt) and send this packet using udp to the my another programmed device which gets udp packet, decrypt that, gets original bytes of voip packet and send it on the wire.the underlined situation is possible.
and what are other complications in it?
Kind Regards,
Jon.
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PostPosted: Sun Jun 21, 2009 11:57 pm     Reply with quote

Are you using the CCS compiler ? Are you using a PIC microcontroller ?
Here you say that you are using an Atmel 8051 with the Keil compiler:
http://bytes.com/topic/c/answers/870331-question-about-ifndef-filename_h
This is not a general purpose networking forum. It's about the CCS
C compiler and PIC microcontrollers.
plowgrammer2010



Joined: 21 Jun 2009
Posts: 2

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PostPosted: Mon Jun 22, 2009 1:40 am     Reply with quote

Quote:
Are you using the CCS compiler ? Are you using a PIC microcontroller ?
Here you say that you are using an Atmel 8051 with the Keil compiler:
http://bytes.com/topic/c/answers/870331-question-about-ifndef-filename_h

Post on bytes.com: I also using atmel 8051 keil but that post was about C language, not concerning this topic.
Compiler and pic: I worked on pic18f452 but with microchip tcp stack in existing project. I have also used ccs in other projects.
In Current project I didn't decide which compiler for tcp stack I will use. If ccs helps me in capturing raw packet, encrypt them make udp packet and reverse it on other side, and allow to put raw packet on wire, I will use ccs.
If anything left to ask, my pleasure to answer.
Kind Regards,
Jon
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