Asymmetric Encryption - Simply explained

How does public-key cryptography work? What is a private key and a public key? Why is asymmetric encryption different from symmetric encryption? I'll explain all of these in plain English!
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[@johnathonbatz662]

the mailbox analogy of everyone knowin the address of the mailbox being the public key, and only the mailbox owner with the keys to his own mailbox as the private key, is a really really really well done analogy. probably the best one ive seen so far with relating public/private keys as a concept to everyday life and making it easier to understand.

[@mjk012579]

Very clear and straightforward. I’ve been beating myself over the head with this topic in my fundamentals class and this just made the differences make a whole lot more sense

[@justArandomfellar]

same

[@tadeob_UB]

likewise

[@ender5023]

Same! This totally makes sense to me now!

[@SannySinghs]

LoL 221b BakerStreet . I have been trying to understand Asymmetric encryption concept for nearly 3 hours. None of the clips i watch explained as clearly as you do about exchanging public key. Well done. Thank you so much

[@simplyexplained]

You're the first one who noticed the address! Thanks for the kind words ;)

[@JonathanCoffey1087]

Same here, this idea helped me a little. Since most of these videos keep mentioning TONS of keys, why not use a lock analogy? We generate a key pair, one public and one private. Think of the public key as the unique "lock" you've just made. You can give that lock to as many friends as you want. If you send me your lock, I can put anything in a box and put your lock on it. Once secured with your custom lock, I can no longer open or see the contents of that box without your key that's paired with that lock.

[@teddyboggs1851]

As an American I can honestly say 221 baker is literally the only address I know in that entire country.

[@TheVirumXD]

Teddy Boggs Sherlock

[@waduhek2568]

ur dickhead

[@kairollmann]

And the next important thing to understand is: Asymmetric encryption algorithms take WAY longer than symmetric encryption algorithms. So people 1) use symmetric encryption to encrypt LARGE amounts of data / files, 2) encrypt the symmetric key with asymmetric encryption and 3) send that (asymmetrically) encrypted symmetric key together with the (symmetrically) encrypted file.

[@simplyexplained]

+Kai Rollmann jep, 100% true. Should've added that to the video.

[@Markd315]

And after that, probably how RSA can also be used to sign and verify data integrity.

[@lallu1122]

I never thought about it! Great!!

[@sivasankarclouddeveloper1114]

Thank you Kai Rollmann

[@uayfb1]

I believe that is how Pretty Good Privacy works.

[@anti-macro]

Anyone here from The Odin Project? Keep it up, we can do it! :) Also thanks for the video, the concept seemed almost alien to me but you've explained it in such a clear way that anybody could understand it

[@Wasko2]

I don't understand why 99% of people find it so hard to explain something to another person in straight forward terms. Asymmetric encryption is so damn SIMPLE, yet it's so hard to find a straight explanation like in this video. Thank you! The part that was really confusing me was that EVERYONE has a public key that they give out to anyone who wants to send them encrypted data. Hi, you want to send me encrypted data? Here take my public key and use it to encrypt the data. Now send me the encrypted data. Now I have the encrypted data, I will use my private key to decrypt it. Very straight forward.

[@Nawdiral]

The key words here I was really looking for since a while are: "...algorithm will generate a public and private key that are mathematically linked to each othere. Public keys can be used to encrypt data and only the matching private key can be used to decrypt it.".

[@futuresocieties.]

High levels of security with mathematics.

[@futuresocieties.]

Mathematics that provide high levels of security.

[@JayLim-bn9fh]

Holy lil fuck! Thanks!

[@TheGadgetwiz]

This kind of irritated me because this was the reason I was watching the video. I wanted to know HOW that part worked. I already knew all the other pieces.

[@penguin-tc1cx]

@@TheGadgetwiz this channel and video is called "simply explained" for a reason... if you want to learn the more complex process behind it, you should do research or watch other videos. don't complain lmao

[@alvfig]

Great introduction, even for non-technical people. Thanks a lot! I'd love if you could make a similar video to digital signature.

[@rockstar86374]

how can anyone dislike this video? He explained the concept very clearly.

[@SEABASports]

Exactly my thought 🤣🤣 people, i swear. Lol

[@oxkaioxo]

maybe because he doesn't mentioned the double encryption with senders private and recipients public key

[@bulinaderguti1346]

Must be the other youtube chanels that failed to explain it better than this video hahahahah

[@AltoXorg]

trolls...

[@tigger2581]

people who don't speak human

[@falmanna]

Very nice and clear presentation

[@simplyexplained]

Thank you very much! First time I'm trying this new way of creating video's. Glad you liked it!

[@abodexblode2347]

Firas almannaa what the different b/n Encryptions and programming

[@erasmonascimento6298]

@@simplyexplained ou pega

[@reginaluciaferreiralimafer1817]

Bom

[@reginaluciaferreiralimafer1817]

Bom, dzzjbc

[@AbhijitChandekar]

This is the best video on public key encryption. What i found was that, many other videos does not mention the fact that the public keys are exchanged between the two parties. Thank you to the maker of this video!!!

[@simplyexplained]

Glad you liked it!

[@scienceblossom6197]

It used to be super complicated for me but even watching this awesome video up to 02:16 helped me understand how public/private keys work in general and now it makes TOTAL sense. THANKS!

[@marriagedance8657]

You deserve so much more subscribers.. Hats off

[@theartofhacking6896]

I was always struggling to grasp the concept of asymmetric keys but now, within only 4:40 mins it became crystal clear. Keep it up. :)

[@brd8764]

rightly and it is prosper.

[@drabberfrog]

This is the first time I actually understood this after watching many videos about it. Thx

[@ACEofMCB]

Awesome explanation and graphics for a visual understanding. I was looking for something simple to show friends and family and you've covered it better than I ever could, thank you!

[@iCortex1]

This took years for my brain to click, it's hard to grasp when you don't have much experience (IE still in school) - but it all makes sense now :) If you're struggling with this concept don't give up, it finally clicked for me after revisiting the subject once in a while

[@kamalsharma2839]

Very good explanation. After unable to understand Asymmetric encryption watching several videos on the youtube, this video made me clear my doubts about the topic. Thank you mate

[@diegoguzman4631]

I was able to understand how asymmetric encryption works in just 4:40 mins! Thanks a lot!!!

[@happyboy2323]

Just what is it, not how it works

[@OHTV2016]

Excellent video, I’ve been watching many videos about this topic and you’re the only one who I actually understood from. Wonderful Job ❤️

[@supaduperforever]

Thanks for keeping it simple, yet intriguingly educational for a layman curious as to how this technology works in the World Wide Web. Much appreciated sir!

[@naeemlhrpk]

It's really funny that I went through many short video but none was found an easy way to understand this concept. This video and the analogy of mailbox messaging made the concept more easy to understand. Thanks

[@Tamilkaraokevideos]

The mailbox example nailed it.. Thanks for the ghaphics and explanation.

[@UralaTAO]

Thanks for the information brother!

[@jrealentertainment]

This is the first video I've seen in a week discussion asymmetric encryption that tells how the public and private keys are generated, and how the public keys are swapped and then the document is resent so that the private key that's paired can decrypt the message.

[@anandarivu]

This is the best video to understand the algorithm. I was always amused at how ssh works with keys. No one ever showed the exchange of public keys. Thanks a lot for the video.

[@simplyexplained]

Glad you liked it! Cheers!

[@MEME-re5jl]

Thank you this is my first comment in the KZbin you deserve it. Thank you.

[@yousufjjk2037]

Between the video, I thought that u should give this guy a like but then accidentally closed the video when I had finished so I had to open it again just to like it. Good work!

[@keithfreeman2139]

I have a Cyber-Security Test coming up Tuesday. These videos have helped me a lot. Thank you.

[@fotoMwahine]

Thank you so much for this easy to understand explanation. Studying cybersecurity and symmetric/asymmetric encryption; this is right on time. Excellent!

[@seetsamolapo5600]

Which cert?

[@ThatTurtleGirl]

Great video! I couldn't wrap my brain around this concept and the video cleared things right up.

[@mmmcccoc6457]

Very clear and straightforward!!!! Bro you save me night!!!!

[@gpardhu]

blessed are the souls who impart such valuable information for free

[@drisakar7744]

it was simply explained thanks! that helped me a lot for my school work:)

[@luntchy0935]

Tyler

[@DavidAdochiti]

who came here from odin project :D very nice video tysm :)

[@eraykacmaz]

The only video that help me to understand the topic really well. "Mathematically linked with each other..." is the key phrase of understanding. Thanks for video.

[@mehul1458h]

that's very smooth explain of asymmetric encryption. I have read many paragraph to learn that but i didn't understand. very heplfull. thanks for that

[@aarovas]

Finally, someone explains to me how it works. Thanks a lot!

[@marcinsola4179]

Great job! I'm just going through Bitcoin's whitepaper and this video helped me a lot with understanding the mechanism behind bitcoin transactions. Thank you!

[@kishcool]

Great explanation. It would be great to see you explain how you can be sure that you’re using the Alice (or bob) public key and not an attacker public key who would be in the middle.

[@phanurutpeammetta2066]

After watching so many videos about encryption, this is the first one that makes sense to me. Thanks for the simple explanation and beautiful illustration!

[@vanderslagmulders]

That was very clear. And a bunch more interesting stuff on your channel! 😀👍

[@noorur]

Very good analogy. So I'm guessing Bob sent Alice his public key via letterbox. And Alice uses Bob's public key to encrypt message. Once the message gets to Bob, he uses his private key to open the message. So a message sent to Bob (encrypted with Bob's public key) can only only be decrypted using his private key. Therefore if anyone wants to send Bob a private message, they have to use Bob's public key to do so.

[@mikepawlikguitar]

Shout-out to all the Odin peeps! Thanks, brother. Great video :)

[@TheTruthSpeaker0]

Beautifully explained. Thanks! I now have a better understanding.

[@RabbitConfirmed]

Great, I never understood why it is more safe. I simply never understood, that the public key is first shared, and the other person then uses your private key to encrypt the message. Stupid but idk, nobody explained it well so far. Thanks a lot!

[@aparnaiyer1199]

Straight to the point ! Gives good groundwork to take this forward!

[@Adi.4455]

Took me a few vids till this one to finally understand it. Thank you very much

[@UnowknKlol]

Good content! the explanation is very easy to understand. I hope all concepts in this world has videos that explained them as good as this.

[@Yell3x]

Thank you so much! This really answered all my remaining questions, just got taught it and asked things like, why would it be public when you can reverse the process and etc. That mailbox example really did it for me!

[@carcamp5451]

Damn. I understood after trying to understand for months. You're a life saver. Thanks for your amazing work.

[@kisme01]

thank you. finally someone who can explain

[@janjeromesoriano1182]

Thank you, this helped me understand how asymmetric encryption work.

[@catharperfect7036]

Best explanation of this on youtube.

[@skr0nytbe389]

IMO, using Asymmetric keys for data transfer is more complex esp. in Client server model. So, asymmetric encryption is just to exchange ciphers, certificate and server public key to client. Once shared, client generate a per session symmetric key using strong random generator and encrypt with server provided public key and send to server. After that, that symmetric key used to encrypt data for that session. This process repeat for every flows.

[@luisrios1989]

I love you! The mail box analogy made me understand everything.

[@brolysmash9333]

Omg, dude, this was so straightforward; thank you very much. Cryptography is one of those areas that blows my mind, and today I understood it with a simple video of you.

[@אגםיפה-ח7ע]

the only video that explained it properlly, thank you very much!

[@isaacomondi9841]

Simple yet very clear. Good job

[@simplyexplained]

Thanks a lot!

[@briannawooden411]

Best explanation of this concept I have come across so far. Thanks!!

[@StudyWithNika]

only material on planet earth that helped me finally understand this

[@theblueraven764]

Brilliant explanation, thanks! I've been wracking my head over this for ages and then I saw this video. It makes way more sense now!

[@PyThon253]

Can you make one that explains Cast-128(Cast5) and the use in PGP? Maybe an explanation video on how the encryption and decryption are used. Great video! Wish there were more channels like this.

[@brd8764]

send, en-

[@lucasrhode2819]

I would add just a little though: i think that explaining the (rather simple) diffie-hellman method is much more powerful then just saying "they magically use their private keys to decrypt data that was encrypted using a DIFFERENT private key"

[@ROHANKULSHRESHTHA-x9u]

sweet and simple , just what i needed , thanks a ton

[@Nullfighter]

I watched like 5 videos on this and this one is the best.

[@lesleykramer7207]

Finally! I understand this! Thanks for a clear, simple explanation.

[@Wagazes]

2:55 is the moment where it all made sense to me. Awesome! :D

[@imanshirkhodaee1704]

best explanation of Asymmetric Encryption. Thanks

[@emufandango]

You’ve got my sub! Thanks for the video, as I’ve been trying to understand this for quite a while, and no one else has been able to explain it to me. Simply put, Alice is encrypting the file in a way that only Bob can understand, and vice versa.

[@JagadishTalluri]

Simple and best explanation. Period.

[@simplyexplained]

Thanks! 🙌

[@Bloom10]

Thanks for the tutorial, really informative and easy to understand

[@J.M.armyOT7]

you should A prof in a university to teach that ... you are amazing ... so easy explanation

[@suparnaprasad8187]

Just awesome. Thank you!

[@chenbiton9469]

Really clarified this topic for me. Thank you for this video!

[@demetriuswright6993]

hands down, greatest explanation ive heard

[@kingdavid379]

__ཞɛąƈɧ ơųɬ ɬơ *ɱąƈųʂɧąƈƙʂ ۷ıą ıŋʂɬą* ąŋɖ ɧɛ'ƖƖ ɠɛɬ ყơų ąŋ ąƈɬı۷ɛ ℘ཞı۷ąɬɛ ƙɛყ ʂơʄɬῳąཞɛ

[@krishnabala8403]

Brilliantly, simply explained!

[@ttaylor705]

Simply explained! I really enjoyed the video. Thanks for this.

[@chulsooslaugh1209]

That was easy to digest and understand. Thank you.

[@noufm6140]

Thank you for making it too easy to understand

[@N3vermake]

Thanks, you summed up a 2h lecture in 4 minutes. Lovely!

[@1122-q1e]

This really helped loud, clear and straight to the point!!! Thank you so much

[@tmyh]

Great presentation, you make it easier to figure this new tech for a no-tech person. Keep the blockchain videos coming mate.

[@ohlawditsando]

I love you narrator.! You absolute legend thank you for this!

[@aquadir2830]

Very helpful.. thank you..

[@sarabia146]

Muchas gracias, este vídeo me ayudará en mis clases de comercio electrónico.

[@samsricatjaidee405]

This is a super clear explanation.

[@sinan4657]

best video ever explained ! thank you very much

[@mr2_pg]

Thank you so much for this helpful video. You're communication and explanation skills are on point!

[@zahidgul5811]

couldn't be more simple and easy to undertand.

[@mosespeter9711]

The is the best video on internet for this topic. Thanks a bunch!

[@SamuelsReview]

I'm taking the CISA and will be using the mailbox example to understand this encryption method.

[@zokir.finance]

Thank GOD, finally I understood the concept, after days of research, this video and youtube channel should be on top))) Simplicity is genious. Thank you so much.

[@tinywarriorfox]

This video is brilliant! A tricky concept, explained in an easy-to-understand way. I've been trying to get my head around how PGP works for ages and I finally feel like I kind of understand it at last. Thank you!

[@Wasko2]

The thing is, it's not tricky at all. It's so damned simple, but for some reason 99% of the people out there explaining it have no clue how to communicate properly. Scatter brains, get to the point for crying out loud.

[@Karen-jj9xe]

Excellent explanation - greatly appreciated!

[@zomgoose]

Clear and concise! Thanks!

[@AmirAli-gv7kn]

Thank you. Watching mins before next lecture so that I stay aligned

[@ernestgrouns8710]

Thank you for explaining this in a way that now makes sense to me!! Much appreciated!!

[@rossgeography]

Brilliant Concise Explanation

[@mkc0321]

excellent video, i had so much confusion with private and public key stuff ..you explained it so beautifully..your channel deserve the title