How SSL certificate works?

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When we are online shopping or banking, we want to make sure it is HTTPS, and a green padlock icon is in the address bar. What does HTTPS mean? What is significant about that small green padlock? To answer these two questions, we need to understand SSL certificate and how it works.
Playlist: Advanced Cryptography/Public Key Infrastructure
• What is digital signat...
Playlist: Basic Cryptography
• Private Key Encryption...
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[@anumsheraz4625]

I haven't seen or read such a clear explanation anywhere... Amazingly Job !

[@sunnyclassroom24]

Thank you very much for your encouragement and kind comment!

[@kanthrama1126]

yaa. share the same feeling. very good clarity

[@nwayookalaya3378]

I agree. Thank you Sunny. It is very helpful. I haven't seen any clear explanation anywhere either. Now I am viewing all of your lessons.

[@后山没有海]

I agree.It's more than 5 videos I have watched about Https or SSL, I can say it's yours the most understandable video here.

[@John2find]

@@sunnyclassroom24 sunny please make video on Bitcoin too or blockchain.

[@anton_t]

OMG, thank you so much! This is the first CLEAR explanation of SSL i've ever found so far!

[@sunnyclassroom24]

Glad it was helpful!

[@mukesh2706]

After learning from *sunny* I am feeling much *bright* then I was 6 minutes ago.

[@sunnyclassroom24]

You are always bright, I believe. I am glad it helped. Happy New Year!

[@madhavrao6571]

@@sunnyclassroom24 you're good man

[@AmarMishra]

This is the best series of videos on youtube on SSL- key authentication.

[@pavsanto]

I have seen many videos on this topic and the more I watched, the more I got head ache. Your explanation is perfect and your pictorial representation is worth thousand words. Thanks a lot !!

[@sunnyclassroom24]

Glad it was helpful!

[@Crazy_moments_of_footbal-qz1qr]

i have never seen such an absolutely clear and calm explanation!!!! kudos to you sunny classroom!!! top top top perfect!

[@synapse660]

Hands down the best explanation I have found anywhere. I like the animation as well. Helps a lot

[@sunnyclassroom24]

😂😂thank you for watching!

[@MuhammadUsman-rc8gd]

WOW WOW WOW WOW, Excellent Explanation. No one explained as clear and simplified as you.!!!

[@sunnyclassroom24]

Glad you liked it

[@remiwagner1304]

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[@cardflopper3307]

Thank you, finally a step by step explanation of the entire request process. I was having a hard time understanding how the certificate was verified. I watched 3 videos of yours: 1) digital signatures, 2) digital certificates 3) (this one) How SSL certificate Works.... that gave me a much better understanding of this material.

[@sunnyclassroom24]

I am glad they helped, especially many topics are entwined together. Many times they are confusing.

[@hyaenas7850]

Everyone wants to teach should learn from you first.You are the teacher of teachers

[@sunnyclassroom24]

Thank you very much for your nice comment.

[@kirafortherescue7756]

That's what I was searching for!! How the algorithms work themselves because I'm a programmer and I'm trying to learn about HTTPS & SSL....... Thank you, you really helped me a lot rather than other videos on youtube & articles everywhere on google which only tells you that SSL is secure... really they're not any useful but your video is the one that does.

[@TheCodeTinkerer]

Perfect on 1.25x times speed :D

[@intekhab3425]

Lol it really helped!

[@udaishankar8616]

Thanks!

[@kumarjitoinam9258]

its really perfect on 1.25x :D

[@josealjndro]

I put 1.5x lol

[@yusufahmed2233]

I play on 2x speed :3

[@송예은-h7b]

Really, THE BEST AND CONCISE explanation about https and ssl ever, thank you!!

[@johnnylasers]

I found this tutorial video on the subject the easiest to understand among others. Nice work, sir!

[@sunnyclassroom24]

Thank you very much for your nice feedback!

[@kennethwood4501]

This is a TRUSTED channel for great explanations! Thanks Sunny!

[@mikenielsen5800]

Not even my teacher which has a PhD in Quantum cryptography can explain it that well like you Sunny, thank you very much!

[@matrixate]

He, therefore, doesn't understand it well enough...like most people with these useless degrees.

[@parmoksha]

PhD and Good teacher are different sets. there may be some overlap.

[@jozefwoo8079]

I have read so much about this but never was it explained so clearly! Thanks so much!

[@sunnyclassroom24]

You're so welcome!

[@darthvarder-w6v]

Hands down the best explanation I have found anywhere.

[@midhunk7984]

Perfect Explanation !!! i Haven't find such crystal clear and simple explanation anywhere else. Thank you so much!

[@sunnyclassroom24]

You are welcome. Many thanks for watching and taking time to write kind and nice words.

[@midhunk7984]

:-) Keep Going ++++from India :-)

[@Jessy-iz7du]

I got clear understanding of the concept .. I have browsed quite a bit and none have a clear explanation .. is this 2 way ssl?

[@ritzspear8093]

Sir - I like your explanation. You break down the problem into simple explanation with very good graphics. Picture speaks thousand words. So true in this case.

[@yaz258]

Mr Sunny really appreciate your works. Not just this video but others also are clear to understand and easy to follow.

[@sunnyclassroom24]

Thanks a lot for your time and comment. I appreciate it very much.

[@brankend]

Thanks Sunny, I'm preparing for an interview and your videos help quite a lot.

[@Life-422]

Great Job brother Sunny !! I would highly endorse KZbin management to reward you for such an excellent presentations !!

[@sunnyclassroom24]

Many thanks for your encouragement!

[@kevinlegobrickmaster8015]

I'm so glad I found this channel I don't visit it much but the amount of cool topics I need

[@BijouBakson]

The course on basic and advanced Cryptography is just excellent.

[@kaysree71]

Clear and concise explanation with just the right amount of graphics. Thank for your video! But I wish you had elaborated on the specific things a browser looks for in a public key before showing the green padlock.

[@ted2101977854]

Best SSL tutorial in KZbin for sure

[@sks6867]

Thankyou. It was crisp and clear explanation of how the keys are exchanged, specifically demonstrating that the confidentiality is achieved using symmetric key

[@onlinesaidasa9105]

Namaste Based on domain SSL certificates are classified as three 1. Single Domain - Applicable for only a single domain 2. Wildcard SSL Certificates - Includes subdomains along with the main single domain 3. Multi Domain - Lists multiple domains on one certificate In terms of strigency of validation these are classified as three 1. Domain validation - This is the least stringent 2. Organization validation - Involves manual vetting process and is more stringent than domain validation 3. Extended validation - Involves full background check of the organization and is most stringent Thanks

[@JuiceManTech]

Thanks for the info, that bit of information at the end of the video about being careful even when on a HTTPS website was Golden, great tip!

[@gurbanliye]

This is the best CHINGLISH I have ever hears, not to mention about HINDLISH. And thanks, the topic is well explained.

[@penghou9408]

Make complex things simple! The best explanation I've ever seen! Well done, Sunny!

[@sunnyclassroom24]

Thank you for watching!

[@UmbraAtrox_]

This is amazing. Whenever you search for something IT related there is a random asian guy explaining it perfectly. Thank you random asian guy

[@ArkFen]

Great simple explanation. I better listen to this one rather the one where native speaker talks bit more smooth but much less clear. Thanks for great job done!

[@dfaultkey]

Thank you so much! This was the only video that explained how SSL certificates work with such clarity.

[@abdelmelkih438]

thnks this is the first time that I understand the process of HTTPS with such simplicity

[@viciouz25]

your explanations are always clear and concise. You're my go to for network refresher. You're fantastic. Keep it up.

[@christopherramos8263]

I never understood this concept until I watched your video, thank you very much.

[@dmitriymelekhov1884]

the clearest explanation I have ever seen

[@sunnyclassroom24]

millions thanks!

[@SateeshKumarSahoo]

The explanation can't be any simpler. Thank You Very much.

[@abhijitv]

BEST VIDEO ON this topic I have ever seen its complete in all respects

[@sunnyclassroom24]

Thank you for your time! Check out my other videos please!

[@michaelhagen9714]

wow... amazing presentation Sunny! Very clear and easy to follow. Thank you!!

[@SumanthLingappa]

clear, crisp explanation. Thank you @Sunny. Instantly subscribed

[@hoangchu4036]

The explanation is very easy to understand, eventually I understand how SSL certificate work:)))))

[@vinustalin1804]

Truly an amazing content. Awesome work Sunny Classroom

[@vnsstudio1792]

First of all sincere Thanks from me, you make fundamentals very simple. Till I watch your video it is difficult but after watching your video the topic becomes much easier. Really excellent genre of teaching.

[@wonwar]

The presentation is very clear and easy to understand.

[@nloukinova]

What iawesome about this video is that graphics not only help you understand the content but also remember it.

[@a.k.zraselrahman260]

I know you and your team need to work hard to create such an amusing tutorial.

[@vivian1779]

Always learn something new from Sunny's lectures. Thank you Sunny :D!

[@amitgupta9844]

You explain things very well with example. Thanks for all your efforts.

[@sunnyclassroom24]

You're very welcome!

[@ramirez368]

He is very amazing to explain something that is not that easy to understand concept in a much clearer and easier way to digest!!!!!

[@mathewkargarzadeh3158]

Thank you Sunny !! for this perfect illustration of SSL/TLS. I greatly appreciate sharing your knowledge on the subject. Mat.

[@jaybash2944]

This is really well put. Thank you for this video. I wanted to make sure I knew these details. I am sure with the 5 years this video has been out that someone already noticed and mentioned the part at 5:22 where there is a typo "pbulic" instead of "public" but I just wanted to mention it in case you were to redo this video with updated information to match today's browsers and SSL Certs. Gave a sub.🤝

[@bwanajuma561]

As easier as it can get....Sir, you rock, henceforth will be your fun!

[@sunnyclassroom24]

Thank you very much for your encouragement. I will do my best.

[@donniegou9522]

the speed is perfect for a Chinese speaker like me😁, thank you sir, your video helping me review the tech details.

[@Th3Redeemer]

All your videos are amazing and easy to understand, your channel deserves more Subscriber.

[@sunnyclassroom24]

Many thanks for your encouragement. I hope people can get something from my channel and videos. I try to put more videos this semester.

[@ziz8245]

Thank you ..weather you are a robot or real man you are great teacher..

[@Maiwand.Hamdard]

Sunny Brother! I really appreciate your kind efforts, wish you all the Best

[@sunnyclassroom24]

Thank you for your time!

[@se2702]

Every video I watch from the amazing Sunny is - well amazing!

[@nikky30100]

Superb explanation. Now I've understood how ssl works

[@thedude3544]

thanks sunny ! your videos must be in the first ranks in IT

[@sunnyclassroom24]

Thank you very much!

[@pstewart5443]

Solid overall explanation. Only piece I see missing is when the sending system (client) encrypts the symmetric key. The client will encrypt using the web server's public key plus the client system's private key. The web server then uses the client's public key and the webserver's private key to de-encrypt. If the private key weren't involved than decryption by other system's would be very easy to accomplish, because it would have the algorithm to perform the decryption since it is publicly-held domain knowledge. The private key prevents the reverse engineering of the algorithm to the two prime numbers used in the equation to create the semi-prime needed for asymmetric communications. HTTP/S traffic, aka TLS, is not super complex to understand, however it is comprised of multiple steps. It isn't easily grasped the first few times it is looked at. You did a great job explaining the major steps otherwise. Thank you for putting up the content and sparking people to learn about the world of cryptography! I applaud you sir.

[@abhirammandavilli5802]

Great point! This was what I was thinking when looking at the video. Anybody could intercept the request and decrypt using the server's public key to find out the symmetric key being sent since the server's public key is...well public lol. Thanks for this comment!

[@pstewart5443]

@@abhirammandavilli5802 you're welcome. Kerckhoff's Principle which laid out the case for asymmetric crypto about 100 yrs before it was even considered, great short read.

[@adamtechdays]

This is such a powerful video as difficult topic has been explained so easily and effectively. Great job Sunny!

[@user-lw9iw7dg5r]

Great job here as always, Sunny!!

[@harry09_08]

Such a crystal clear explanation 👌👌👌

[@PremshanPaul]

Thanks to this video, now even my 5 year old son is able to explain on how data gets encrypted both ways in a client-server communication. You are an awesome teacher, Sir.

[@muhammadusman1564]

you explain so well I am preparing for CompTIA A+ I wish you had all videos compiled in one course like mike i like your explanation and examples

[@MartinGeremiFlores]

Very simple and clear explanation. Thanks.

[@andrewmaxwellcarmeichal5381]

Clearly explained with the animation, text and instructor going at a nice speed for newbies like me. Nice 👍

[@sabtoprabowo1808]

thanks sunny for your explanation

[@sunnyclassroom24]

You're welcome 😊

[@theblonde8152]

Clean explanation that anyone could understand, nice

[@Tobisss123]

What a brilliant explanation! Thank You for Your great videos!

[@rajivraghu9857]

Such a clean n precise explanation ever!! Thanks Sunny :)

[@lordraj365]

This is so well done. Really easy to understand!!!!!!!! Thanks you so much sir.

[@s11x]

Perfect explanation! Your channel is great. Keep up the good work!

[@arutube123]

Nice , Crisp and clear explanation

[@amyb3585]

Excellent explanation on this topic. Also the graphics were a great help, thanks so much!

[@vivekprajapati7911]

sir u are great teacher tribute from my heart...thanks so much

[@sunnyclassroom24]

Tjaml Thank you very much.

[@venkysmile]

Great learning !!!! you read the pulse of the listener.Great job sir

[@sunnyclassroom24]

Many thanks.

[@rusirumunasinghe7354]

The simplicity was so helpful. Thanks!

[@sunnyclassroom24]

You are welcome!

[@sayandey1478]

This is a good one, reaaly good, especially with that CA's public key so detailed

[@VarunKaushik18]

Well made video! Gives complete information in simple words in a very short time.

[@flinox]

Your explanations and presentations are the best, very clarify !! congrats for your job !!

[@katier1935]

I love your videos, you have such a clear and concise way of explaining things. Thanks for helping me study for my Security+ exam :)

[@sunnyclassroom24]

You're very welcome!

[@drifter2341]

Short, simple, clear, amazing!

[@sardarzain7386]

I am very happy to find such a video tutorial thanks. sunny bro.. love from PAKIDTAN🇵🇰🇵🇰🇵🇰..

[@Allright303]

Perfect explanation! Thank you for the video. Greetings from Turkey.

[@krp1eee]

super good and clear and time-saving explanation. thank you

[@sunnyclassroom24]

You are welcome!

[@BarrySwords]

Your videos are great Sunny. Very clear and easy to understand. Thank you 👍

[@marcosalameh8677]

So Amazing,,, So wonderful,, Sunny your are sooooooooooooooooo professional!

[@WK-wt6xy]

Best explanation on youtube!

[@sunnyclassroom24]

Thanks a lot for saying so.

[@hassanelakhloufi8073]

The best introduction to HTTPS I've ever seen ! thanks a lot

[@srdjanmisic4671]

Finally a clear explanation thank you sir.

[@vijitkumawat2874]

sir, very perfectly explained......Nice Work

[@sunnyclassroom24]

Thanks for liking

[@jeffgalef121]

That was a fantastic explanation. Thank you! I wish everyone made videos this easy to understand.

[@sunnyclassroom24]

Thank you very much.

[@melvinpeymani9470]

one of the amazing explanation. Huge thanks.

[@sunnyclassroom24]

Glad you liked it

[@senthilkumarpalanisamy365]

Excellent clear cut explanation with simple animation. Thank you very much for doing this, Sir. You are an excellent teacher.

[@sunnyclassroom24]

Thank you !

[@M3nt4LC4t]

i like how you put a reminder at the end of the video. a website with https doesn't mean it totally secure. before, i used to believe all websites with https are trustworthy

[@calebmcnevin]

Wow... been wondering and trying to understand this for a long time. This was a great explanation!

[@albertgillbert9216]

Thanks ! do add to your website using Let's Encrypt or Cloudflare :www.udemy.com/course/ssl-certificate-2020/?referralCode=7D4292AF4DE158DF476B

[@sunnyclassroom24]

Thank you for your time! Check out my other videos please!