K-Tech Centre of Excellence in Cyber Security (CySecK)

Digital Defenders CTF 2023 Masterclass Webinar-7

Samgacchadhwam Series Webinar #63

Topic: Cryptography - Part 1
Speaker: Mr. Sayooj Samuel, Software Engineer, Gen Digital Inc.
Date: Tuesday, 27th June 2023
Time: 3:30 - 5:00 p.m.

In this session, we will introduce you to the fundamental concepts of cryptography and explore various encoding and encryption techniques.

During the first part of the webinar, we will provide an overview of cryptography, discussing its significance and why it is crucial in today's digital age. We will differentiate between encoding and encryption, explaining their purposes and highlighting the distinctions between the two. Furthermore, we will explore different types of encodings such as binary, octal, and hexadecimal, and demonstrate how they are used in practical scenarios.

The second part of the webinar will focus on basic ciphers, including historical examples like Caesar's cipher, Vigenère cipher, and Atbash cipher. We will delve into the history behind these ciphers and shed light on their encryption mechanisms. Additionally, we will demonstrate practical methods of cracking these ciphers to showcase their vulnerabilities.

Intriguingly, we will also touch upon the Enigma machine, a device famously used in World War II for encryption purposes. Through live demonstrations, we will simulate eavesdropping and explore the cracking of the Enigma machine, providing a glimpse into the real-life challenges faced during that time.

Finally, we will delve into XOR encryption, explaining its workings and conducting simple exercises to familiarize participants with this technique. By the end of the webinar, you will have a solid understanding of the basics of cryptography, encodings, ciphers, and the historical context behind them.

Webinar Attendance:

To attend the webinar, please use the link given below:

Webex Meeting Link: https://cisco.webex.com/cisco/j.php?MTID=mb7234fba6acea77158990c89fb596803

Webinar Password: kT2RVqH6bx9 (58278746 from phones and video systems) Webinar Number (access code): 2574 459 8362

Assessment Link: Assessment Closed.

Webinar Registration:

This webinar is open to both the Digital Defenders Capture the Flag (CTF) 2023 registrants and to the general public. However, the following guidelines need to be followed:

Category 1: Digital Defenders Capture the Flag (CTF) 2023 Registrants

(a) Registration should have been completed through the Registration Form on the website:  https://cs-coe.iisc.ac.in/ctf2023 on or before 5th June 2023.

(b) To be considered for the CTF, you need to attend/view the recordings of all the eight webinars and participate in all the post-Webinar Assessments that follow.

(c) Only the Top 500 CTF 2023 Registrants with the highest scores in the Assessments that follow each webinar would be eligible to participate in the CTF.

Category 2: Members of the General Public (not registered for Digital Defenders CTF 2023)

(a) Please navigate to the URL: https://cs-coe.iisc.ac.in/portal/auth and register yourself with CySecK by clicking on "Register as User".

(b) Once registered on the CySecK website, please login and click on the "View" button below "Webinars" on your Dashboard page.

(c) Once you are on the "Webinars" page, please click on the title of the webinar which appears under "Webinars open for registrations".

(d) At the bottom of the screen, please click on "Register".

Note:

1) Google Form is used for Assessment and may ask for a Google Account login. Therefore, its preferred that you use a Gmail address.

2) We request you to please use the same email address to register for all CySeck activities and events.

3) Please use your registered email address with CySecK/CTF 2023 to login to the webinar through Webex and while updating the "Email" field in the Assessment Form.