Digital Signature | Blockchain

[@vikasgupta-fz2dp]

best use of 3 minute 36 seconds ..... thanks a lot ..

[@vladimir8895]

Your blockchain tutorial for beginners is one of the best things i've ever found on internet. I have 5+ years of web programming, and now I feel bored with all of this and want to change my field of work. I was looking for some simple and clear walkthrough but found only tons of bs and complete water, but God felt my pain and sent me this GEM of tutorials. 🙏🙏🙏

[@rhajvijay]

Navin.. You're gifted with an ability to explain things clearly. One of the best Indian KZbin challenge for learning!!!👏👏👏

[@techwithwhiteboard3483]

channel and not challenge also he hasnt taught anything on blockchain. how to make one on our own lol

[@placement3608]

God is here guys ...thank u very much sir for making each and every concept to be clean and crystal clear....hats off for your hard work for making videos for us .....many many thanks sir

[@dibyanshu2930]

It would be unfair if I doesn't appreciate your skills to explain anything very neatly. Along with your video I also watch other channels also no one can beat you. You r d best.

[@mycreations3452]

I heard in my class in last few days back ,I couldn't understood that..now it's clear .tq sir

[@Tuba.k007]

crystal clear...after watching so many videos on youtube .. this was just crisp and perfect

[@exFeeds336]

Amazing. i was confused how digital signature and confidentiality works together . Now i know the order too. Thanks

[@NAVEENKUMARS12]

What a simple way of explaining a twisted concept. More power to you Navin!

[@AbhishekSharmaDit]

Sir at the end of the video 3:20min if we will use public key of A in then, any third person can also access it! Then confidentiality kaise hua maintain?

[@kisme01]

but only B can decrypt it in the first place? so nobody else can actually intercept and attempt to decrypt it with A's public key

[@AjayJain-ef2mz]

@@kisme01 so 'B' will decrypt it using A's public key. But how does B get A's public key in the first place. Does A share it?

[@shreyasingh1258]

woahh thats pretty cool!iam in my second year engg and i regret not watching these videos earlier

[@sindhubasavanna1927]

master in explaining things in a simple way :)

[@manojvitharana6512]

What an amazing teacher🥰

[@amitcshah]

What I like is, the "time constraint" of your explaination.. mostly I try to find "to the point" kind of videos.. otherwise we need to keep watching 20 mins video to understand a simple logic with which the real content starts at the end.

[@vishugondaliya7644]

what a great explanation I think you are really gifted with this , explanation of every hard topic so simply .

[@naschwindias3873]

best explanation ever

[@abhilashkokkonda1713]

wow Navin...New graphics looks awesome..and as always great video

[@sonaliumare344]

too good explanation, need more videos how to use blockchain

[@shouvikpradhan1094]

Sir truely speaking you are great , thanks sir ,thanks .If possible I also wants some hands on practical experience by solving some small problem using Blockchain technology

[@mohamadrezapirayesh3811]

finally somebody who can explain this shit in just 3 minutes thanks man

[@parthivsolanki21]

Your explanation is just wow 😘 Mind blowing sir 🙂 I got it.

[@dr.patgiri662]

Short and precise to understand. Excellent.

[@rakshar9129]

Sir you have always been a great inspiration .Best teacher ever . Thank you so much.

[@hendrixbrysen9433]

instablaster.

[@vinayvipul]

Very great quality videos, explained beautifully and with excellent graphics.

[@mangeshpawar2255]

Really worth to learn your tutorial , nice way you tought. Thanks buddy I appreciate your kind efforts. Keep doing ....

[@ManivannanGD]

#Telusko clean explanation about #DigitalSignature. But I have a question, how the #key's are shared between two persons in virtually. How that works?

[@himanshugta1724]

Thanks for the simple explanation!

[@stocksandblocks9661]

I always follow your videos, they are stunning

[@hamidliaqat7283]

awesome ,regards from pak 😍😍

[@MyLamph]

this is very precise. Thanks for this Navin

[@sureshkannan6313]

Excellent teaching.....🤩

[@bowbowzai3757]

You explained it clearly!

[@manoj4480]

Thank you. Great video. Just the last sentence. C can not decrypt it as it is encrypted with A's private key (You mentioned B's public key) Correct me if I am wrong.

[@MrAjay51]

thanks very much for doing this in English

[@ravindrabangalore2990]

Yes agree your point to have asymmetric keys ,but here how we can communicate with more than 1 node or system, here also we need to maintain all public keys and private keys ...what's different???

[@MajorVenkataKrishnaMadem]

outstanding explanation

[@indianitguru]

Hello Navin, Great videos and thank you so much for these. I am however not sure if you have explained digital signatures correctly. I think during the digital signatures what we normally do is use the hashing technique along with the encryption.

[@yashchauhan5710]

point to point explanation gg

[@bolludiwakarreddy8487]

Sir what are you going to teach? Blockchain web development or core development?

[@rengarajansrinivasan4356]

The best guider!!

[@amitkadivar9445]

this video helpful in to study.Thanks sir

[@udhayasankar113]

Excellent explanation..

[@Skaxarrat]

Very clear and concise explanation. We will see any coded blockchain project?

[@1112sravani]

How does B know that it has to decrypt with A's public key?.....Will it try all public keys?

[@arjunvihaan6745]

it is automatic...i was lucky to be directed to [e-mail]...i cant imagine that my wallet is back and spendable..contact him..goodluck

[@meghhanigam8375]

Best teacher

[@unemployedcse3514]

Awesome bro 💞💞

[@ramkumarreddy4295]

Great stuff sir thank u🔥

[@chethanr.a.4610]

Navin, what will happen, if A private key is compromised. Is there any option in block chain technology in which keys are regenerated and newly generated public is shared again?

[@saikrishnareddy3485]

Ssssir vvvery clear ......😍

[@aditi22012]

Won't the public and private key be the same? Unless the message can be decrypted by two kinds of keys?

[@reenus134]

Very good presentation

[@sudhakarverma8452]

Very amazing video sir

[@sounakbhowmik2841]

Hey! I was using rsa library in python. When I encrypt a message using a private key, I can not decrypt using the public key. What do you suggest?

[@muhammadmughees7551]

very nice explanation

[@chandrareddy2427]

Black chain technology books best tell me

[@OmNamahShivayOmm]

awesome explanation!

[@sagarworriors1402]

classic clarification. thanks

[@anuragbose494]

Sir, i couldn't understand the digital signature part. Is it possible to explain how it really happened.

[@sarikigovind4703]

How can B encrypt A's message.. I need proper explanation..

[@sarikigovind4703]

@Rajesh Bhattarai thank u....

[@ernestmbila5047]

you can only encrypt a message you want to send. eg B can encrypt a message it wants to send to A with A's public key and A will decrypt it with it private key. the bigger question is where will B store its private key so nobody can see it?

[@ernestmbila5047]

Where can A, B or C store it private key so nobody can see it since the private key is the major security

[@rakeshsanthapuri9933]

Awesome navin

[@snehashischattopadhyay9519]

I understood how the encryption and decryption would work. But how does one ensure that this is the private and public key of one item eg A. ?

[@jeromes9186]

You can be sure that a file is encrypted by A's private key by trying to decrypt it by A's public key.

[@sourabhtiwri]

For C we have cryptography A we have digital signature what about Integrity ?

[@umeshnataraj5951]

Great video

[@divakarreddyperlavenkata9600]

You are super awesome👌👌

[@nirusanhariharan8382]

I got a doubt sir. What if the third party knew the algorithm which node a and b were using and third party use the both public keys to access it. The private key and the public key can be known by others ( B knew the private key of A). So how to sort out this, sir ?

[@compass2530]

B doesnt have the Private key of A, No one can have the Other person Private key in the network ! So only B can decrypt the message, since only B has the Private key of its own to decrypt the message

[@anantmohan3158]

Great Sir..!

[@atharva2004]

solving problem of authentication: message is encrypted with private key, and then this encrypted message is again encrypted by receivers public key. so receiver first decrypts using his private key, and then using sender's public key. so now receiver knows who the sender is. this is digital signature.

[@lishannavishka1783]

Navin sir, Can you take a scenario there are 5 members, they are doing transaction between each of other I want to know when they are doing their transaction how make Genesis block and other blocks how make digital signature for each block? What Wii happen some persons access one block and changed it hash and how it affects to next block, and you told anyone can not hack all nodes in block chain but some time one node can be hacked when one node hack what happened security of another blocks these are the questions which I have if you can make a practical scenario for block chain that will be help Thank you.

[@harishkallianpur9368]

Just excellent..

[@devkishanjoshi3897]

Sir can u please make tutorials on competitive programming ...?

[@venky4993]

The name of this channel is telusko Telugu word

[@khetaramsansi119]

Sir, I have USB device that containing digital signature of authorized person, Now I need to add this signature into PDF, I am working in PHP, can you please suggest me how can I achieve it, I am totally confused and don;t have any idea to implement it. I have used the hwcrypto.js and able to generate the certificate, but how do I process it in background and add signature into PDF using PHP. It will be great help from you sir and I am looking forward your positive response for same.

[@vedantkamat8570]

Is this concept the same with crypto currency wallets?

[@apricotcomputers3943]

my question is... how can this be possible for router ip tables??

[@top10swithkesi]

can we encrypt one text multiple times..??

[@yt.user-zull]

Yes, a message can be encrypted any number of times but you will have to keep every encryption key while decrypting it. Just one time encryption is enough but sometimes for some security reasons two levels of encryption is required (e.g. as explained in this video). Encrypting a message above two levels is not required and its cumbersome.

[@top10swithkesi]

@@yt.user-zull Thanks you brother.😍

[@yt.user-zull]

Great..👌

[@nokhaizlolzz]

Excellent thanks

[@nktt9351]

Great sir

[@surajkarna6036]

superb!

[@YashPatniyp]

How you earn money ? What is your source of income ?

[@Mahesh-gq7fm]

very awesome

[@okechuchukwuchinwuko8430]

Nice 👍

[@yahiagamal937]

the videos are just amazing but the sound at the begining is really annoying and loud😅

[@rudreshmehta6870]

As private key n u r encrypting B node is decrypting by aa public key Then are you telling that as private n as public key is same?🙄

[@fazaljarral2792]

Perfect.

[@Softwareengineeringdev]

good ♥♥♥

[@RobinJesba]

Can't wait.

[@Soldier-yu2ml]

Good video

[@amanshaw8496]

Here there is two encryption: 1. Encrypted with B public key and Decrypted with B private key in order to obtain confidentiality.. 2. Encrypted with A private key and Decrypted with A public key in order to obtain digital signature I am waiting for how we obtain these function, encrypting with B public key but decrypting with B private key.. How ..

[@namangamer8142]

Picture perfect..

[@SS-qf3pl]

how can every one know A's privatte key?

[@punitmore]

How to implement it practicaly

[@sivacharan57]

you haven's touched the concept of hashes, without describing hashes I believe the concept of digital signatures remains incomplete.

[@ullast4]

Where your office?

[@NamanGuptachaloghar]

Can you pls explain little bit more?

[@MrWandalen]

Public key only for encryption!

[@mdjahidulislam9205]

Grreat

[@siddharthsingh1827]

Sir please apne hindi channel.mein hindi mein samjhao sir please

[@yashshende2786]

❣️