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.
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.
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
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.
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
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
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.
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.".
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.
@@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
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!!!
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!
Wow..how clearly & beautifully explained. From a long -long time, I was highly confused why 2 keys in asymmetric encryption...never been able to understand...but your explanation made it clear completely. Tons of thanks to you :)
You should also mention that encryption works in the other way too. An encrypted message with a private key can be decrypted only by the paired public key and this insures that the sender (or whoever encrypted the message) is indeed trusted.
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!
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
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!
Excellent explanation on asymmetric encryption. I was uncertain on how could the encryption of locking/unlocking the data worked since the private key never crossed the wire. You introduced and delivered that difficult concept in an easy relatable manner. Thank you for that! Best video ever. I now feel more confident about asymmetric encryption.
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.
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!
Been watching public/private videos for days. This is the first to make it clear, specifically stated at 1:53 where the private and public are linked to each other. That's the key (pun intended) to understanding how it works. Others take it for granted. You spell it out (in non-cryptic form hahahaha).
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.
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!
Thank you so much for this easy to understand explanation. Studying cybersecurity and symmetric/asymmetric encryption; this is right on time. Excellent!
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!
Thanks man... I watched a lot of videos but was not able to clearly understand the exact concept, then I came across your video and yoo!! I understand the concept in no time... Thank you so much 😇😊
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
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.
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.
new to this video and concept, but never before understood the concept fully before seeing this video. After seeing this video, I grasped every single concept from this encryption, thank you so much
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!
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.
its awesome how u explain thank you a lot, its beeing one year trying to unterstand this complex IT Security,but i couldnt with all videos in Internet. u just explain it in few minuts and i didnt need to repeat the video thausend time, thank you a lot for your hard work
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.
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.
2:53 Sorry if my question sounds dumb, but if Alice encrypts the sensitive document with Bob's public key, can't others just use Bob's public key to decrypt it since its the same key used to encrypt it?
@Shadow96 bullshit dude, both keys are used in encryption or decryption depending on different cases. For a digital signature, for instance, PrK is used to encrypt the signature, and PK to decrypt it, which is intentional, just to verify the integrity+authenticity of a given message.
@2:09 "they (public and private keys) cannot be derived from each other" I think this is incorrect, because the public key is derived from the private key but you cannot derive the private key from the public key. This makes the one-way function definition.
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.
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.
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.
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!
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.
This is like sending secret codes to your classmate during study lessons, coding and decoding text just so no one peeks and listens on, but this makes things way easier by automatically coding and de coding it through digital devices
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!
The fact that you spent 1 year trying to understand the concept, and then caught it just watching 4-minutes video, tells that you didn't put any effort into it during the whole year.
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.
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.
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
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.
+Kai Rollmann jep, 100% true. Should've added that to the video.
And after that, probably how RSA can also be used to sign and verify data integrity.
I never thought about it! Great!!
Thank you Kai Rollmann
I believe that is how Pretty Good Privacy works.
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
same
likewise
Same! This totally makes sense to me now!
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
You're the first one who noticed the address! Thanks for the kind words ;)
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.
As an American I can honestly say 221 baker is literally the only address I know in that entire country.
Teddy Boggs Sherlock
ur dickhead
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.".
High levels of security with mathematics.
Mathematics that provide high levels of security.
Holy lil fuck! Thanks!
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.
@@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
I find from personal experience, it is the people who can describe a process simply are the ones who TRULY understand it.
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!!!
Glad you liked it!
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!
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. :)
rightly and it is prosper.
Great introduction, even for non-technical people. Thanks a lot! I'd love if you could make a similar video to digital signature.
Wow..how clearly & beautifully explained. From a long -long time, I was highly confused why 2 keys in asymmetric encryption...never been able to understand...but your explanation made it clear completely. Tons of thanks to you :)
You deserve so much more subscribers.. Hats off
how can anyone dislike this video? He explained the concept very clearly.
Exactly my thought 🤣🤣 people, i swear. Lol
maybe because he doesn't mentioned the double encryption with senders private and recipients public key
Must be the other youtube chanels that failed to explain it better than this video hahahahah
trolls...
people who don't speak human
Thank you this is my first comment in the TH-cam you deserve it. Thank you.
Man you explained it in so much simple manner. I don't even need to note it anywhere. It was like a story that's in my head. Thanks a lot sir.
You should also mention that encryption works in the other way too. An encrypted message with a private key can be decrypted only by the paired public key and this insures that the sender (or whoever encrypted the message) is indeed trusted.
Genius
I was able to understand how asymmetric encryption works in just 4:40 mins! Thanks a lot!!!
Just what is it, not how it works
Best explanation I have seen in over 5 years. Brilliant.
Very nice and clear presentation
Thank you very much! First time I'm trying this new way of creating video's. Glad you liked it!
Firas almannaa what the different b/n Encryptions and programming
@@simplyexplained ou pega
Bom
Bom, dzzjbc
The best and clearest description of public-private key cryptography I have seen so far!
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!
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
This is the first time I actually understood this after watching many videos about it. Thx
I have a Cyber-Security Test coming up Tuesday. These videos have helped me a lot. Thank you.
Everything explained really well in 4 minutes
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!
Excellent video, I’ve been watching many videos about this topic and you’re the only one who I actually understood from. Wonderful Job ❤️
The mailbox example nailed it.. Thanks for the ghaphics and explanation.
Excellent explanation on asymmetric encryption. I was uncertain on how could the encryption of locking/unlocking the data worked since the private key never crossed the wire. You introduced and delivered that difficult concept in an easy relatable manner. Thank you for that! Best video ever. I now feel more confident about asymmetric encryption.
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.
Glad you liked it! Cheers!
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!
This is probably the best explanation of this on TH-cam
Been watching public/private videos for days. This is the first to make it clear, specifically stated at 1:53 where the private and public are linked to each other. That's the key (pun intended) to understanding how it works. Others take it for granted. You spell it out (in non-cryptic form hahahaha).
blessed are the souls who impart such valuable information for free
1:22 Love the 'Sherlock Holmes' reference.
Great video! I couldn't wrap my brain around this concept and the video cleared things right up.
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.
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!
Thank you so much for this easy to understand explanation. Studying cybersecurity and symmetric/asymmetric encryption; this is right on time. Excellent!
Which cert?
Damn. I understood after trying to understand for months. You're a life saver. Thanks for your amazing work.
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!
Thanks man... I watched a lot of videos but was not able to clearly understand the exact concept, then I came across your video and yoo!! I understand the concept in no time... Thank you so much 😇😊
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!
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
thank you. finally someone who can explain
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.
it was simply explained thanks! that helped me a lot for my school work:)
Tyler
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.
new to this video and concept, but never before understood the concept fully before seeing this video. After seeing this video, I grasped every single concept from this encryption, thank you so much
Great presentation, you make it easier to figure this new tech for a no-tech person. Keep the blockchain videos coming mate.
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!
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.
Thank you. Watching mins before next lecture so that I stay aligned
its awesome how u explain thank you a lot, its beeing one year trying to unterstand this complex IT Security,but i couldnt with all videos in Internet. u just explain it in few minuts and i didnt need to repeat the video thausend time, thank you a lot for your hard work
Thanks, you summed up a 2h lecture in 4 minutes. Lovely!
excellent video, i had so much confusion with private and public key stuff ..you explained it so beautifully..your channel deserve the title
the only video that explained it properlly, thank you very much!
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.
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.
2:53
Sorry if my question sounds dumb, but if Alice encrypts the sensitive document with Bob's public key, can't others just use Bob's public key to decrypt it since its the same key used to encrypt it?
@Shadow96 bullshit dude, both keys are used in encryption or decryption depending on different cases. For a digital signature, for instance, PrK is used to encrypt the signature, and PK to decrypt it, which is intentional, just to verify the integrity+authenticity of a given message.
Straight to the point ! Gives good groundwork to take this forward!
Finally! I understand this! Thanks for a clear, simple explanation.
2:55 is the moment where it all made sense to me. Awesome! :D
only material on planet earth that helped me finally understand this
Thank you so much for this helpful video. You're communication and explanation skills are on point!
Best explanation of this concept I have come across so far. Thanks!!
@2:09 "they (public and private keys) cannot be derived from each other" I think this is incorrect, because the public key is derived from the private key but you cannot derive the private key from the public key. This makes the one-way function definition.
Yes, that's indeed what I wanted to say
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.
Short, sweet, and to the point. Thanks for this great info condensed in short amount of time.
Really nice vid, clear and straight forward with a non-IT person like me. Thank you very much
Finally a video that explains it correctly and super clearly.
This really helped loud, clear and straight to the point!!! Thank you so much
That was very clear. And a bunch more interesting stuff on your channel! 😀👍
Finally, someone explains to me how it works. Thanks a lot!
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.
send, en-
the channel name talked for itself. amazing video with clear definition
Really clarified this topic for me. Thank you for this video!
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.
Perfect explanation, better than my lecturer and now I got the idea clear.
The is the best video on internet for this topic. Thanks a bunch!
Took me a few vids till this one to finally understand it. Thank you very much
Thank you for explaining this in a way that now makes sense to me!! Much appreciated!!
Best explanation of this on youtube.
Excellent video. The most well explained I have found so far on the internet!
Shout-out to all the Odin peeps! Thanks, brother. Great video :)
Thanks for the information brother!
This solved my confusion very easily. Great presentation
you should A prof in a university to teach that ... you are amazing ... so easy explanation
Very clear and straightforward!!!! Bro you save me night!!!!
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.
Clear and concise. To the point with great graphical representation.
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!
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.
This is like sending secret codes to your classmate during study lessons, coding and decoding text just so no one peeks and listens on, but this makes things way easier by automatically coding and de coding it through digital devices
sweet and simple , just what i needed , thanks a ton
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!
I have been trying to understand this for last 1 year but only now it makes me feel that I understand this without any confusion 👍
The fact that you spent 1 year trying to understand the concept, and then caught it just watching 4-minutes video, tells that you didn't put any effort into it during the whole year.
@@equim7363 Haha you judge people's effort so easily..
@@cutecats6105 yes I am so arrogant
You have definitely lived up to your channel name with this one. Nice work.
Man i love you, i finally understood how it works, thank you so much ❤❤❤❤❤