Encryption and public keys | Internet 101 | Computer Science | Khan Academy

[@Dunit1117]

She's a great teacher. It's refreshing to hear someone explain technical things nice and slow. Slowing down gives people time to process the info.

[@matthiasmcgee5805]

Hey, I don’t mean to inconvenience you, but could you help me out? In my OKX wallet, I have USDT TRX20 and the recovery phrase [ clean party soccer advance audit clean evil finish tonight involve whip action ]. How do I send it to OKX?

[@paul-cl3el]

her explanation is by far the best I saw on youtube simple and easy to understand

[@matthiasmcgee5805]

Excuse me, could you offer me some help with this? I’ve got USDT TRX20 in my OKX wallet, and my recovery phrase is (clean party soccer advance audit clean evil finish tonight involve whip action). What’s the best way to move it to OKX?

[@TickleTwinkleTwink]

YOU EXPLAINED THIS SOOO WELL!!!

[@girlforyoru]

I have an exam for CS External Encryption So I started Studying this! Fully Explained! Thank you for informing us!

[@fabricionunes8683]

I’m going to learn English with this video, I like to learn two things at the same time ❤️ thanks

[@gabby993]

This is probably the first time I watched a Khan Academy at home on my free will. Other times was at school. Just because I was curious how encryption works

[@matthiasmcgee5805]

Hey there, I hope it’s okay to ask, but could you help me out? I’ve got USDT TRX20 stored in my OKX wallet, with the phrase (clean party soccer advance audit clean evil finish tonight involve whip action). What are the steps to transfer it to OKX?

[@matthiasmcgee5805]

Hi, I hope it’s not a bother, but could you assist me? I maintain USDT TRX20 in my OKX wallet and have the recovery phrase [ clean party soccer advance audit clean evil finish tonight involve whip action ] How do I move it to OKX?

[@moonshine4757]

She's so good at explaining in the most simpler way. Great job 👏

[@rcubed1979]

Great video, very easy to understand! I loved the mailbox demonstration!

[@shermayapaul8224]

I am here revising for my IT exam and I just felt a curiousity of how encryption works. She explained this so well and made it easy for me to understand. Thank you. You are very good at your job.

[@parker797]

The mailbox analogy was the best way I've seen of explaining public key encryption; it makes so much sense this way

[@prekshajain6935]

No one has explained it so well ..Thanks for sharing it

[@scooby7877]

Something to keep in mind here is that SMTP (a protocol on port 25 for mail) can be used with SSL (a protocol for how encryption is made) so that you can securely get mail even if both protocols are on different ports

[@celestinetoussaint6350]

Ahhh this was helpful because I was curious about that!

[@hamzawaheed47]

I just want to THANK YOU for clarifying my thoughts!!!

[@MrSreenir]

Well explained. The Public Key can be shared after authentication before exchanging messages between computers

[@kdr2079]

FANTASTIC VIDEO AND EXPLANTION - Thank you for making this video! Im sharing it with many people. 🔥👏

[@mic9047]

Amazing video. I’m glad I found this channel to learn about networking!

[@antoniorodriguez5138]

¡¡Woooow!! Her explanation was amazing and only she is a young girl. Incredible!!.

[@jean-francoisbec8358]

Wow! It makes sense and it is really easy to understand with your words ! Thank you :)

[@vinaybabupamu6190]

One of the best video in internet to get started to understand encryption. Thanks.

[@avitex2441]

Best explanation ever, its too easy to understand

[@artishzone]

Thanks a lot for the great lesson! Your teaching style makes learning so much fun.

[@DCYPT]

Thank you really much for the professional explanation!

[@mukundumashankar3979]

dayummmmmmmm your explanation is sooooo nice thanks for clearing out my confusions in this short and amount of time .

[@ryananderson8817]

"This is what I'm doing with my work and I'm always about to lose my shit" :^)

[@johnny14980]

How did u comment this 5 years ago? It says the video was posted 2 years ago

[@dkbroman]

@@johnny14980 WHOA HE'S HACKING

[@NeelSandellISAWESOME]

This is really cool. It seems that with 256 bit encryption, it would take 2^256 guesses. The concept of public vs private keys is cool as well --> anyone can deposit in your mailbox but only you can access the contents.

[@skyblue1599]

why 2?

[@NeelSandellISAWESOME]

@@skyblue1599 For every bit, we have two choices.

[@nilsmustermann8454]

I was a bit confused first, because 2^256 isn’t (2^256)-1 (number in the video; 3:17), but precisely spoken you don’t have to “try” the last combination, because you already know it’s the right one after trying all others

[@miteshd81]

My daughter loved this❤

[@tonykososki3016]

maaan this video is so great!

[@meow710]

Daaang.... This is the explaination I'm looking for. So, logical

[@leerdoor]

Extremely well explained. Good job girl!

[@abcdefghijklmn6940]

Mia Gil is so cool and also explained very clearly!!

[@adyanathkaibartya7222]

Great Job, Mam Conference level infinity

[@tharunthiruseelan4252]

This video was amazing.

[@ber2996]

Im always wondering how the public and private keys works in the basic sense, now that example makes sense

[@nissimbracha1]

Thank you for this explanation! that was very halpful

[@claverassanvo8495]

Amazing explanation... Pretty woman 👩 with Pretty ,true and simple knowledge about encryption and description of a message 😢Many poeple try to explain 🤔 😉 but they can't elaborate it well... Thanks🎉🎉🎉God bless you 🙏

[@fetajonathan2247]

NIce explanation. KUDOS👏

[@thidevaloka6081]

Great work sis super supportive

[@badrii07]

Good Job, thanks

[@bhavyasharma8661]

amazing explanation and amazing explainer !!!!! Thanks a lot

[@oopsy444]

we need to get a sequel course!!

[@siskahernaning]

thank you.. your video is so well explained

[@ananyaimtiazhussain6816]

Wow! Thank you. This helped a lot.

[@labuewilfred2259]

Thanks for the simple n clear explanation

[@RealTacticalMax]

I’m just thinking of what would happen to my potato laptop if I tried to decode one of these.

[@siyn007]

you can see the long hours of coding in her eyes

[@iixcloudyxii560]

siyn007 how does it say you posted this 4 years ago if this was published April 2019...

[@siyn007]

@@iixcloudyxii560 don't question just admire

[@Moderationinmoderation]

@@siyn007 lol

[@lakshmanreddy1148]

@@iixcloudyxii560 😶

[@lakshmanreddy1148]

How 4 years ago 🙄🙄🤔🤔

[@bemotivated2203]

allways changing and challenging :) very well explained in simple manner thanks

[@marvismeng1953]

You are talented!!!!!

[@gustavoisidor2575]

@khanacademy what about quantum computers for decrypting the messages without the private key and trying all possible combinations?

[@nielsdaemen]

*Beautiful and smart!*

[@janeric1810]

I thought I'm too stupid to understand this, thank you very much

[@thakibkorede]

A very educating video. Keep it up

[@brentdelosangeles2499]

Amazing video!

[@hello_virals]

You are amazing thank you so much good luck!

[@sorintalpis8210]

Beautiful presentation and presenter

[@esmaeelbaz6827]

great explanation

[@sushilakarki3885]

No it will take about 2.78 hours for a computer to brute force a 10 digit code. Love your vids btw

[@kiu8179]

Good viedo, very thanks i like the spanish subs

[@prajwalmishra2722]

Best video..thanku

[@mahdisfatima3218]

Thanks alot... I helped me alot

[@wazidalikhan2775]

Thanks, good information.

[@severianocuellar1327]

TOTP code (App Authenticators) is Symmetric and Hardware keys (Yubikey, Feitian, etc) is Asymmetric?

[@beappreciativediligent1220]

I dont get it . If I have a public key of someone else. And g use the key to generate an encryped file with a file of my known content . Then why can't I reverse the encryption and derive the private key?

[@dmoney141414]

great video! thank you

[@fernandosanchez5117]

thanks, really nice video.

[@HighlifeLuna]

Quantum Computing has entered the chat.

[@rlyehdate]

What a pro!

[@anntakamaki1960]

Straighforward explanation.

[@luis96xd]

Amazing video, everything was well explained and I liked the Mailbox example, thanks! I have a doubt, we use the Public Key to encrypt messages and the Private Key to decrypt them But, can we encrypt messages using the private key and decrypt them using the public key? Does this has sense? or it is not possible Another doubt, using a number key in Caesar Cipher we swap N times as the key says, but how does key work with they have letters?

[@anthonyarmstrong9196]

Wow. That's heavy

[@AnhTuPhucDerrickHoangCanada]

Encryption locls my info with institutions i trust!

[@shantanurai5911]

Thnx for video

[@AceofDlamonds]

Thanks!

[@SelmanErhanekici]

Great presentation and explanation

[@BlueProgamer212]

3 years ago comment on a 2 years ago video

[@jeffbguarino]

There is other information you can use to figure out a message. Like "free pizza in the cafeteria" = "kmsg rpche ps upg ehimxlwji" There is other information here. The English language is the other information. There are only a couple of thousand common words. Two letters , is, in, on, to, etc. not that many. You could possible figure out a sentence of just by counting the number of letters per word. You probably know what the general content of the letter might be. For example a military letter of orders will not be a cooking recipe, so the word basket will be limited. If this letter is sent to you at a place where there is a cafeteria, then you have more information. Maybe they have free pizza once a year and you can guess what the message is just by putting together information from diverse places. If you see an encrypted 5 letter word , as the first word of an email. There is a good chance this word is "hello". Consider a baby who knows no language at all. They can figure out what you are saying. It takes a while but they know, and not from the actual words but all the cumulative information gathered up from the months of watching things.

[@Gary-Seven-and-Isis-in-1968]

You're an absolute genius, thank you for a fascinating video. Could you tell me if it is possible to find the encryption key for an Android photo file if the owner mistakenly wiped the encryption key from the phone?. Yes it happened to me and so far nobody has been able to shed some light on this commonly occurring problem with Android phones. By default from Android 6 upwards all data on the phone is encrypted.

[@SoulXample]

“Some math that we won’t get into right now”. That’s what I came here to try to understand aargh!

[@chiraggoel3604]

nice video

[@nomanibnhafiz3876]

Too good

[@eddietime1811]

Me: I only wanna hear about the math Her: we won’t get into that now Me:

[@JimMarshallUK]

Will quantum computing allow for “brute force”? Within a reasonable amount of time. IE trying all the possible combinations? It seems AI, Machine Leaning, Neural networks and faster processing will get you there

[@johnhack67]

thanks

[@MrKennym321]

There are two things I don't understand: If I encrypt an email message, for example using S/MIMES, how does the person I am sending it to get the key to decrypt the email? Secondly, how is a certified signature a guarantee that the email is safe? Isn't it possible for someone to hack someone else's certified account?

[@hi_beemo1808]

the quantum computer be like: what only 256 bit key? I'm I a joke to you?

[@8877robert]

Bravo.

[@thekeith1221]

How does she work for the dod while still in college?

[@DarkEagle01]

Can’t someone reverse engineer your private key from the public one? If you know how something is encrypted, doesn’t that mean you can decrypt it?

[@Kitulous]

you basically have to bruteforce 2^128 or 2^256 keys in order to guess the private key :) no, there's no way to derive a private key from the public key

[@johnny14980]

The whole point of encryption is to develop methods that are essentially irreversible.

[@shamelessone1987]

I really need to find a video that doesnt use an analogy like the mailbox, like i need one where it explains to me how the encrption actually works and doesnt allow the public key to decrypt the the information.

[@williammangani2151]

Help me guys which school teaches Computer Science on an Online at affordable price

[@itboostaustralia8498]

great video

[@enahmoscar-phoenix7565]

Bruh I waited 5 minutes for the math…

[@urmomasf]

im still confused :( i just i dont know how to do it in my code assignment...

[@Noah.Nation]

Use math boom.

[@ArcadianArt]

What they fail to tell you here while the blow encryption out of proportion is that the NSA, CIA and five eyes do not care about cracking codes when they have backdoor access to nodes. They can tailgate any message on the internet that triggers their attention. Encryption although affective to an extent is just being hopeful. It’s all about language mixed with encryption and avoiding the surface.

[@ArcadianArt]

Isaac W go look up who looks after proton mails servers, and where exactly their servers are located. They even state in their website if you are a “Snowden” do not use proton mail. In other words it won’t protect you. PGP is overrated and filled with flaws. Look up my videos I made a video on PGP

[@ebentee]

@@ArcadianArt gonna check your videos and will definitely subscribe

[@donnievitelloni3806]

A quantum computer will make this process obsolete one day

[@derpr00]

To the part where processors get smaller and smaller. We cant go any further smaller anymore

[@cycnr4062]

Were is Theale green at

[@chadfreddy7820]

Help me my teacher is constantly restarting the video so we can't get on the computers. Quick someone teach me everything I need to know about this.

[@michaelduvwiama1370]

Who's here from Solent?

[@adityabhatt4177]

wow

[@c.s.i.s6284]

This is video doesn't mention the fact that all governments have private encryption keys. So this means that governments can decrypt any individuals private information.

[@manyworldsvideo]

Only if the people sending the information do it with the government's matching public keys.

[@chavorocket]

>Click video >Hear woman's voice >Close video

[@chavorocket]

@versatilenethra You will never be a programmer

[@chavorocket]

@versatilenethra That's what I thought, aka nothing