Vigenere CIpher

In this video, you'll get a comprehensive introduction to the Vigenere Cipher. Whether you're a beginner or looking to refine your skills, this video will help you master the fundamentals. 🌟
If you enjoyed this video and want to dive deeper into the world of programming, decryption, encryption, and C++, then check out our full catalog: bit.ly/3Vr0uRo. Forge your future in tech with Udacity!
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[@konstantinrebrov675]

Very well explained. Simple, clear and concise. Straight to the point. I understood everything!

[@konstantinrebrov675]

@Joe King Stop complaining and just listen.

[@Cumpooter]

I just decrypted your comment and I'll not surprised grinder is your favorite app.

[@argiromarioli4917]

I'm here because I have an exam tomorrow and I'm screwed
update:I passed so this video worked I'd say. (yes this is many years later I just got a notification for this thread okay leave me alone)

[@tamassky]

Same here:(

[@iamspooder4573]

ah shit same

[@asbestosrecuperation]

I've got 3 days until the exam. I've never studied this many days before the due date. Feels weird.
*Edit: grammar*

[@furkanturkal8414]

Same +++ :)

[@canadianstrainshow6576]

I’m here cuz I like ciphers and it’s easy for me to learn them🤷‍♂️

[@Vista7]

I started watching Gravity Falls season 2 just now, and I have to say THANK YOU very much for demonstrating how the Vigenere cipher works. I'm gonna have a blast decrypting all those end-credit cryptograms.

[@henwoda]

omg I was just reading journal 3 decodings, ay good luck

[@flopjack12]

i was gonna do the exact same thing! I SWEAR GRAVITY FALLS HAS AWAKENED THE NERD INSIDE OF ME

[@henwoda]

@@flopjack12 HAHAHAHA LETS GOOOO

[@TheSqoou]

Gravity Falls is the best!

[@Yes-fuckyouyoutube]

SEASON TWO? THEY MADE A SEASON TWO? OML OML OML

[@Cumpooter]

I am mentally handicapped (tarded) and i understood this first try. This is making me happy!

[@hitherebud3083]

So I’m a gravity falls nerd and if u don’t know gravity falls has like a million different ciphers and codes and stuff and dude do I have to say this was helpful thank you A TON

[@Yoon7450]

@Hi there Bud
I'am a principiant

[@ej-ej49]

5 years after the show ended and I'm still a Gravity Falls nerd.

[@ej-ej49]

@love.galore.x I have a whole list of the ciphers and the cryptograms, lol. I write my diary in them because my mom's a snoop.

[@luzohcramity2174]

@love.galore.x i bought the book still trying to de-code blendins letter

[@Dazai-Kinnie907]

I am here because of gravity falls it got me in to Chiphers and now I do this for fun

[@Hazy41711]

I'm here because of Gravity Falls

[@trevorphilips9065]

Hazy41711 I'm here because Batman Arkham City

[@hitherebud3083]

Hazy41711 BRUH SO AM I VIRTUAL HIGH FIVE

[@sophiascott9723]

Haha same

[@cleopatra4906]

Hazy41711 .....same

[@cleopatra4906]

Hi there Bud
.... high six*

[@tylera5598]

Im here because im gonna design an internet clue hunt because corona has me bored af :)

[@TheChameleon64]

Breakout Philippines? :D

[@prekrasnyy8728]

Send us a link when u finish it

[@pianonrd5410]

could you send me a link to it?

[@lysmrtz]

yo tyler send link, i look at chocolate melting just to get out of boredom.

[@jaredjdelossantos8079]

Me 2 bro

[@GG_Booboo]

Finally a perfect explanation, I couldn't understand it from my assignment!

[@Cumpooter]

Almost perfect, he made one small mistake. Listen closely at 45 seconds in and you'll hear it.

[@johnmurphy1248]

Beautiful explanation. Thanks.

[@mr.z413]

Thank you very much for the detailed explanation! Example in my book is impossible to understand

[@anannieie]

Kronen 1ST what book is it? And one question real quick, what’s the key stream. I still don’t get it

[@animepabu5526]

Annie Nguyen
Ur key stream is the number assigned to ur key. So it’s lemon right so you use that everytime. there’s a better tutorial on the vigenere cipher than this that explains it better lemme edit this with the link. It’s just overall better to understand and it’s the same thing just with numbers. This saves you from having to count like in this video : ua-cam.com/video/E352JJ8xv48/v-deo.html
This make it a bit simpler

[@Cxlzu]

I'm very thankful for your short, simple and easy to follow video on Vigenere Cipher :)

[@sylvs_2168]

Thank you!This video is really helpful and I learned how to use Vigenere cipher in just 2 minutes thanks to this video :)

[@jeffreyweaver9854]

I'm here because I read the following book:" Codes, Ciphers, And Secret Writing" by Martin Gardner. I wanted to find out how this video presentation compared to how it was presented in that book.
Incidentally, since the grid can be used with more than one method, I think that the word "system" is a better description than the word "cipher" for the Vigenere grid.

[@yasirjune69]

Thanks a lot....I have been looking for this table...but thank god..i finally found it here. thanks a lot mate.

[@AKIRAA_ss]

Who is here beacause of the kryptos but knows they will fail :0

[@kareeem]

I’m here from James’ video.

[@ithaca2076]

Haha I remember james

[@animepabu5526]

I learned to do the vigenere cipher with counting out how many spaces to go to rather than this. So watching this after that was so confusing but I get it now. This just saves you time from counting spaces

[@kingofthesloths]

Clear and quick explanation. Thanks for this.

[@mihirshaik1203]

wait is it always lemon or any other words?
44444444444

[@irtezaasad7885]

Very well explained in a simple way. Thank you!

[@TingusPingus445]

So the first letters of the plaintext will be the column letter the key will be what y column and the cypher text is is the letter on x column and y column together

[@OscarZhou511]

I love this voice so much.

[@fonyiketatanntombongbrunhi4637]

Thank you so much. Was very easy to comprehend compared to my textbook.

[@t509j]

ياوطن افخر دام وسطك شراري🔥

[@danieldsouza4973]

WHAT AN ABSOLUTE CLUTCH DEMON FOR CS

[@almukantarf]

randomly recommended by youtube. thanks

[@namu-kp2hl]

You're video is very helpful! Thanks!

[@klaksono1157]

Thank you so much for this explanation!

[@lananhpham8162]

Thank you! Your video helps me understand vigenere cipher 😆😆

[@Nooneyouknowforsure]

This was simply understandable 😊 thanks

[@BasicallyDuncan]

It seems like everyone is here from Gravity Falls when I’m here from Winterhouse-

[@Larry21924]

I'm influenced by the powerful impact of this material. A book with related themes charted a new direction in my life. "The Art of Meaningful Relationships in the 21st Century" by Leo Flint

[@suchandrasarkar8671]

Here because of Bill Cipher!

[@hmmmhali]

Here because of supergirl season 5 episode 3. Thought I might like to start wrtg things down using this, live the explanation!

[@heraesuedria9968]

I'm here beacuse of Project LOKI

[@alexandra9800]

Hera Esuedria owemjiii filipina!❤️❤️💜💜💜💜

[@arnettefamilyarchives]

The real question is... which letter in the graph is incorrect?

[@gokulrajm745]

Thank you lot for your information 🤝💐

[@Vinod_Kumar827]

very nicely explained

[@jasonlewis8233]

Great simple explanation.

[@orpat007]

Very nice explanation!

[@leemii4363]

I'm here because I have to code this

[@xeenah]

Very helpful thanks

[@ASDstopmotion13]

Love it ima teach it to my bestie so we can send codes👌

[@ashleycalleja2911]

THANKS FOR THIS GREAT VIDEO!!!!💖💖💖

[@ashleypursell9702]

awesome video thanks so much

[@yaashakhan1779]

Very nice explained

[@alancharli3904]

Ciphert text would be like so:
LXFOP VEFRNH(Z) Last letter is Z not R as on the video
Please confirm if Im not mistaken

[@shounenprotagonist4209]

thanks bill

[@TingusPingus445]

So in the plaintext no matter what it will always be the first three letters or am I missing how you choose the first three letters

[@minimalistmaximus6476]

Increase security by using key word that has non repeating letters that is the same length as plaintext.

[@prxtty_swag]

I'm here cause of ruby redfort✋

[@prashanthvgowda2743]

An hour of class got in 2 minutes

[@Eric-kw6sj]

Here because I started binging Blindspot. This stuff's interesting ngl

[@hanac5586]

I tried to understand this by reading but no avail :'''D thanks for the video, I understand now

[@wearethechange128]

Key:widdle ciphertext:NLMXQWWN IIZ LZFNF

[@mikazuki_0012]

I've been screwing my head for word encryption but tnx man

[@pranuanu5142]

Bro juz said it in secs😮n tmrw is my exam😅

[@lafleurdecerisier5837]

I don’t understand if your trying to decrypt the ciphertext and you don’t know what the key is how do you figure out the key?

[@VitroVine]

cryptanalysis. the key being periodic makes it quite easy to break

[@propanescripts]

Anorepio- -SAI you have to guess

[@conscriptchampion]

@@VitroVine Only if the key is shorter than the message itself and based on yet random information. But otherwise you're correct. Modern computers will crack this cipher in microseconds.

[@AdventureCJ]

I'm here because I want to make my own encryption so I can write open diaries

[@YudhistiraNoorSinatria-oo6zn]

If the plain text is have a space between word, it is still can we encrypt or we need to combine each word?

[@mtf_nine_tailed_fox385]

I'm big breyn now

[@cgglitch333]

I am here because of Gravity Falls

[@EddieOrr]

Here because of the UA-cam channel called Deeper.

[@JustSomeGuyWhoisLost]

Imma use this to decode kaalaman's message

[@Anonymous-rb1bt]

But why did you explain it the other way around

[@thanoof]

I am here from SoloLearn

[@neckslicer]

me too lol
what is your username? i want to follow you

[@ashah0520]

Key- To
Cipher text- OQ

[@sourlimx5366]

thx for the vid im here from smpearth arg :P

[@mihirshaik1203]

wait is it always lemon or any other words?

[@Wholesomeships]

YeH me

[@TingusPingus445]

Is this to decipher or encrypt the plaintext

[@ardadeniz3800]

encrytp

[@secretagentnerd754]

I’m here because of “The Smiles Household” in Roblox

[@neckslicer]

Very good! thanks!
but i have a question: if i wanted to add more characters to the table (for example, numbers 0 to 9) how would i do that? would i just add them to the end of each row and column and then shift the letters again?
thanks again

[@conscriptchampion]

Yes, you can do that. I've made my own with numbers and basic punctuation. Done correctly you've got a very workable cipher and the equivalent security of a one time pad - the Holy Grail of encryption.

[@JarppaGuru]

just add number end of first and second col and row and fill blanks. i mean you have to cleam half of this board bcoz it comes 0-9 where has a-k
mean N line would be NOPQRSTUVWXYZ0123456789ABCDEFGHIJKLM.
and all those grid can be even mixed it still would work
or make bigger circle and smaller circle write your alphas and number equal on edges.
that is same thing and less work.turn smaller ring K(stream letter) under A and do your encrypt and decrypt so on.
or make 2 strip of paper
ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789
ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789
yes one is double size so its easier when you slide key under A you can encrypt and decode.
works still exact same way

[@BrendanLi-v1x]

Thaat's soo cool

[@nurzhanamantay8729]

thank you!

[@leandrosloukas8989]

Thanks

[@dotwillexist]

Thanks for explaining this :) i thought it was really hard but i was wrong. Btw, how do we find the key?

[@queasdafsaf]

You don’t, you make up your own key, I’m guessing but idk

[@mdd1963]

My own key is “Eff Joe Biden”

[@dotwillexist]

@@mdd1963 brilliant! what if i named my key "i am a racist"- /j

[@stareditor07b]

nice

[@butler4237]

I'm here because I want to learn it

[@darkgrasshopper7635]

same haha

[@shweta341]

how to convert if we dont have that table ?

[@Jotin8664]

CISSP preparation brought me here.

[@DirtyKoolAide]

Still dont get it

[@paenu]

where did the key come from

[@jerichosharman470]

Seems like an A will always encrypt to the first letter of the key

[@firstsecond2079]

Where is the second method

[@Steven64]

That's good to know!

[@ventismami1745]

finally i can confess to my crush

[@mileskastner1988]

you didn't explain how to decode

[@muhammadhaziqhamizi6799]

how to decode again?? idk that

[@Parth.Deshpande]

I'm here from cicada 3301 puzzle

[@theentirestateofalaska.4983]

How do I get a key? Do I have to create it or?

[@johnpeter_oficial1563]

I'm here cause Da Vinci's code

[@JW-zx5dr]

Interesting

[@ragulkrishna7635]

I'm here because of THE PRESTIGE

[@eseadjara20]

GOOD VIDEO :)

[@beltran9778]

I got it

[@jihyo3723]

How do you solve it

[@eunicekimberlynnnoquiera5057]

im here because of project loki

[@eeblebeeble]

I’m here because of the book Bitterblue
Wack

[@user-rk4wu9vb5y]

اللي يدرس امن سبراني بالجوف لايك

[@naneo2005]

I'm here because SIFAS Daily Theathre

[@SurfingBryan]

I'm here because I am doing a project about Enigma

[@rommelbaticados14]

I'm here because of Project Loki