💸 BankHeist

Live Demo here More information and code on GitHub https://www.youtube.com/watch?v=6OJlWO6G2lc BankHeist makes live remote singing possible. A receiver and a signer log into a secure environment over the internet to sign all sorts of documents remotely while communicating through a video chat application. The receiver obtain real-time signature data from the signer, then the computer…

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Protocol Definition: UDP

The User Datagram Protocol, or UDP, is a communication protocol used across the Internet for especially time-sensitive transmissions such as video playback or DNS lookups. It speeds up communications by not formally establishing a connection before data is transferred. This allows data to be transferred very quickly, but it can also cause packets to become lost in transit —…

Remote Signing Machine (Project Update vol.1)

Code name: BankHeist https://github.com/jasontsemf/bankheist network diagram https://youtu.be/qrs684gK_7s

Remote Signing Machine (Proposal)

Intro Web signing/doodling client + Internet enabled CNC plotter/drawing machine as a server https://www.youtube.com/watch?v=R2CdNX6b-So The design problem business use - to enable remote signingsome banks on accept manual signature on a physical form to complete minor taske.g. phone number, address changethere might be some serious task that requires manual signature, but not a e-signaturefun use…

Packet Analysis

My approach Given the assignment to analyze the traffic of my home network, I wanted to analyze the packets in two different scenarios. Observe Idle Mac, quit all visible (not background) applications, disconnect my other online devices (smartphones, tablets)Leave everything normal, like how I connect and surf the internet in a typical day After having…

Traceroute

The Plan I planned to perform the traceroute task using 3 separate routers/networks. Home Wifi (Spectrum)sandbox370nyu For multiple sites that I usually visit. youtube.comgmail.comfacebook.cominstagram.comcpc.people.com.cn (Communist Party of China)gov.hkgov.ukhk.yahoo.comyahoo.com Mapping Traceroute Since the map does not differ a lot for different routers/networks, below is a set of traceroute map from the nyu network. cpcfacebook.comgmail.comgov.hkhk.yahoo.cominstagram.comyahoo.comyoutube.com Analysis General…

Set up a host and its firewall

Setup After creating a droplet on DigitalOcean, I ssh into my server and started following Tom's Guide for setting up the firewall using iptable for linux. The iptables rule.v4 was set up on Thursday night, and I came back for the logs on Monday afternoon. The log is located at /var/log/kern.log When I first cat…