Simple Caesar Encryption in Python

In this video we build a simple Caesar cipher in Python.

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[whipyyy]

You are so good and the channel is underated ;( you deserve a lot, thc for the content!!!

[sudarshandas]

5:31 I particularly don't understand what is going on with the 26-80 thing, I have seen other blog tutorials too where this something is subtracted from 26 in order to get back to the original value from an encrypted value; but I found an easy solution. Just use negative numbers. Put shift = -5 and it will work fine to give the original result back. (But thanks to the tutorial tho)

[simon]

dude.. i advise you to start makin'/workin' on Udemy. i would like to buy a Python course from you!

[SimonTiger]

If you really want to get fancy, you can use "frequency analysis" to decode the message:

Let's assume that the message is in English for this example.
1. Look at the distribution of how often the letters come up.
2. The most common letter in English is the letter E.
3. So, at least if the message is long enough, one of the most common letters in the encrypted message should map to E.
4. So we can get the shift by simply looking at the distance between E and the most common letter, because that would map the most common letter back to E.

[ryszard]

Thank you for what you do! Your films are very interesting and I teach a lot. I have been learning to program in Python for several months, I am currently 12 years old :)

By the way, I come from Poland, so even there it is helpful!

[neelaynaman]

I'm in 1st year of high school and your videos are so much awesome, amazing, and informative. Love from INDIA❤

[hasaranger]

I was just thinking of creating a gui that encrypts a message, when your notification came in

[tibish]

You just got yourself a new subscriber 🤠

[pitman]

A+ tutorials, training products and content creation.

[_zelatrix]

I just want to point out that you're not actually implementing a "Caesar" cipher. You're using a shift value of 7, so you're actually implementing a ROT-7 cipher. Caesar cipher is specifically when the shift value is 3. All other values of the shift produce rotation ciphers, but not a Caesar cipher.

[subhankarchakraborty]

Awesome encription brother.

Thank you soo much.

[danasgudaitis]

Ok but how do you decrypt it? Could you make a short video telling us how to?

[harrybestfriend]

when there are comments before anyone has had time to watch the video

[ronneljayag]

That was amazing im gonna give you a subscribe for that!

[tatiannalindsay]

Suppose I want to convert the space as well? Or in stead of jumping from w to a, I enter a range of special characters?

[StephenEhrlichPhotos]

So many tips such as nesting functions in functions and string methods. Very helpful.

[mr_wavey]

Hello There!

Is there a way to decrypt the encrypted word/sentence?

And is there a way for the user to choose how many shift they want?

I would appreciate if anyone can answer me!

[luislima]

Awesome video bro! I have done a script that makes the same, but I didn't use the string module. I did it "manually" 😂😂

[calvin_limbu]

Can someone tell me where I can learn more about the method used in line 7 of this code.
Seems very useful and I haven't been taught it. :)

[GameDev_Master]

Now the hard part: learning how it works. Like i get the big picture but if i want to change something on my own im stuck