About me
Hey I'm Sujoy Roy
I'm a Computer Science Professional, specialised in Cyber Security. My Core interest lies on Security, Development, Machine Learning and Networking.
I would be happy to apply my skills and concepts that I've learned during my graduation period and through my projects.
I have also done many projects based on my skills and certifications and I have been also recoginzed as author in IEEE.
Skills
My work
I have worked on many projects that justifies my skills and certification.
A Vehicular Ad-Hoc Network, or VANET, is a form of Mobile ad-hoc network, to provide communications among nearby vehicles and between vehicles and nearby fixed equipment, usually described as roadside equipment. In vehicular ad-hoc networks (VANETs), network services and applications require an exchange of vehicle and event location information. Basically, the DTN protocol is used for message transmission which may result in some delay but it is more reliable in nature. To reduce delay in communication, we proposed a new algorithm called Variable Delay Broadcast Protocol (VDBP). We simulated and tested in Indian Road Scenario using NS2 and we got more efficient results. We also presented the algorithm for the application of protocol in Vehicular Networks.
An application where a citizen can file his/her FIR without going to Police Station and police can further investigate on the case and update the status. The FIR would directly go to the Inspecter of that area and status of the report can be checked by the victim. But before one need to create an account in this, further one can report for the crime followed by the information they have with them and proofs.
An android application which will basically suggest a user to go to a coffee shop or to go for a movie on the basis of his/her tweets. If the words of his/her tweet is positive we will give a score of + 1 and if it is negative we will give a score of -1. We have collected the words from the given link:- http://wire.wisc.edu/quizzesnmore/Emotionwords.aspx and also from http://www.thepersuasionrevolution.com/380-high-emotion-persuasive-words/. But before user has to make his/her tweets public and has to turn on his Location Service while tweeting. If user doesn’t make any tweets recently or made his tweets private or location off while tweeting, then it will recommend the nearby places as end result.
Firstly, the user has to log in with his/her twitter account, and further make a tweet. Then further we will use REST API from twitter to get the user status/user timeline and it will check for the score and after calculating, if it comes out to be positive then the system will suggest for movie and the nearby location, and if it comes out to be negative that means user’s mood is not good so the app will suggest nearby coffee centers.
In this we have designed an algorithm for prediction of an alternate route in case of Traffic Jams or any sort of congestion.
This project aims on controlling different parameters of a vehicle using a PID controller like speed, temperature etc,. In today's traffic scenario and road conditions it is very difficult to drive a vehicle. So, we try to automate control certain parameters of a vehicle for better driving experience. When traffic demand is great enough that the interaction between vehicles slows the speed of the traffic stream, this results in some congestion. So, we also look into congestion problem in present traffic system and implement different techniques and methods for congestion control and smooth driving experience.
It is a basically a web server where we are monitoring and controlling our data, which has been taken from cloud-storage thingspeak.
We need the solution of choice when a controller is needed to close the loop. The reason PID controllers are so popular is that using PID gives the designer a larger number of options and those options mean that there are more possibilities for changing the dynamics of the system in a way that helps the designer. If the designer works it right she/he can get the advantages of several effects. In particular, starting with a proportional controller, and adding integral and derivative terms to the control the designer can take advantage of the following effects. An integral controller gives zero SSE for a step input. A derivative control terms often produces faster response.
In this we broke the DES algorithm using Brute-Force Attack known Plain Text Attack.
First we understood the innards of Data Encryption Standard (DES). DES is the first symmetric key encryption standard adopted by NIST and US federal agencies including banking sector. Though DES is not the first or last block cipher it definitely is computer science’s first step towards increasing security by using cryptography. The first block cipher happens to be Lucifer, introduced by IBM and is a direct precursor to DES. Thus, DES is kinda influenced by the design of Lucifer.
