https://github.com/dev-ritik/secure-file-transfer

CSN 503 course project for transferring encrypted file for corporate network
https://github.com/dev-ritik/secure-file-transfer

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CSN 503 course project for transferring encrypted file for corporate network

• Host: GitHub
• URL: https://github.com/dev-ritik/secure-file-transfer
• Owner: dev-ritik
• Created: 2020-11-16T14:32:08.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-11-18T08:39:22.000Z (over 4 years ago)
• Last Synced: 2025-01-30T13:26:03.340Z (4 months ago)
• Language: Python
• Size: 54.7 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Secure file transfer

A demonstration for secure file transfer within an organization for CSN-503 course project.

## Implementation

The files are secured using RSA to encrypt and decrypt messages. The architecture used is:

![Screenshot from 2020-11-18 02-28-20](https://user-images.githubusercontent.com/32809272/99504709-e7c93d00-29a5-11eb-9bf8-5c1ae6e9f483.png)

- *Auth server* acts as a registry for active users. It provides root certificate as trust anchor with the network.

It uses its cert to sign authenticated user's public key in a certificate.

- *Clients* Clients listen on ports for incoming connections and handle them using message handlers. Identity of a 

requester is established using the cert provided by them. Cert chain is validated to establish the authenticity and

prevent MITM attacks.

- *Handshake* Our implementation defines and uses a 2-way handshake implemented over TCP handshake wherein both the 

parties exchange their cert so as to establish trust and authenticity.

# References:

- https://medium.com/mobile-development-group/trust-tls-ssl-and-https-b925ac9d59