Crack a Caesar Cipher Easily with CrypTool 2 πŸ”“

Learn how to break the ancient Caesar cipher using CrypTool 2 in this step-by-step demonstration. Perfect for beginners interested in cryptography and code-breaking!

Crack a Caesar Cipher Easily with CrypTool 2 πŸ”“
Cryptography for Everybody
8.5K views β€’ Dec 11, 2019
Crack a Caesar Cipher Easily with CrypTool 2 πŸ”“

About this video

#cryptology, #cryptography, #cryptanalysis

In this video, we demonstrate how you can break a Caesar cipher with CrypTool 2 (CT2). First, a Caesar cipher is created with CT2. You will see, how encryption and decryption works with the Caesar component in CT2. After that, we present two different ways of breaking a Caesar cipher in CT2.

1) Break a Caesar cipher with a brute-force search by testing all possible keys
2) Break a Caesar cipher with the help of letter frequency analysis

With both methods, a Caesar ciphertext can be broken instantly. Method 1 is useful for short ciphertexts. Method 2 needs more ciphertext (as you will see in the video), but does not need to test each key.

Download CrypTool 2 from here: https://www.cryptool.org/en/ct2/downloads

Like what I do πŸ˜„? Help fuel my crypto obsession πŸŽ“ β€” buy me a coffee hereβ˜•β€” thx: https://buymeacoffee.com/cryptographyforeverybody

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Video Information

Views

8.5K

Likes

93

Duration

7:54

Published

Dec 11, 2019

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