Can You Solve My Riddle? | Zero-Knowledge Proof Protocols 

why i watch half the things i watch

facts lol

Yessss, agreed...

That would be a good way if the information is case sensitive and something concrete. An abstact idea cant be proven in this case. Since a slight change of the input would make the output entirely different.

Strange enough I thought of the same.

@@louiskusno hashing are one way function so there is no way to get the same hash of encrypted message by guessing. The receiver must need to have the exact message encrypted to get the exact hash. The send the hash of the encrypted message to the sender. The sender can verify the hash without reading the message.

@@kac5527 In Tim Gs example you (as an attacker) do not need to have the actual information, you just need to have the hash and input it to the receiver. If you have managed to capture one transmission of the hash by intercepting the traffic you (as an attacker) have won. The only way of preventing this attack would be to ensure that the transmitted hash is constantly changing with every transaction. This is called a Salt. For example you could use the date and time and hash it, but then the sender and the receiver has to be syncronized good enough to fit the resolution of the time measurement. If, for example, you take the milliseconds since 1970 as the salt and a fixed string as the secret then you need to ensure that the receiver's and the sender's clock are synchronized exactly to the millisecond. But this solution has flaws: If the clock does not match, the senders correct solution will be seen as incorrect by the receiver. Also the attack still would work if the attacker has a really fast connection and PC that can capture the traffic within microseconds, manipulate it and then resend it with the captured hash before the millisecond has passed. Another solution that comes into my mind to solve this would make this attack a bit harder would be to use the sequence number of the transmitted message as a salt as long as the communication channel is live. The problem to this would be that sender and receiver will get desynchronized if at least one package is getting lost while it is on its way to the receiver. Then the receiver will reject all following packages of the sender as invalid, so the connection has to be rebuild. But this might could open another attack vector: The intercepting attacker could force the sender to reconnect after every package (for example the attacker could block the network traffic of the sender to force a connection timeout or send packages with the wrong hashes on purpose to the sender to make him think that the client got desynchronized to force the receiver to close the channel), so he could reuse the hash he captured before the connection close and send it as the solution to the receiver and the receiver would accept it if there are no further security measurements present, because the hash of the attacker exactly matches the expected hash (the attacker still does not need to know the secret - having the hash is enough to fool the receiver into thinking that he is the legitimate sender). A second attack vector for this solution would be for the attacker to make sure he captures the first package in the channel (so that he knows the sequence number) and then with knowing the Salt running a Bruteforce or Dictionary Attack against the captured hash. If the attacker has enough computing power and enough time he will find out the secret (or at least a matching secret - Hash functions always cause collisions) by comparing the computed hashes with the captured one until he has found an input that generates the captured hash as output. Then he can manipulate all remaining traffic without making noise on the network by spamming reconnects.

It's a company!

One can reasonably assume they have strong support from a backer of some kind

Sum sub is a company of kyc verification

No ig posts 👀

Watched for a long time, they will defiantly be a top RU-vid channel in the next few years

No, once the "challenge" and retuned number is known in this case, the secret can be found. And that's not the goal. Youre supposed to prove without revealing the secret.

As if these problems could be solved with existing voting mechanisms

I would say they mostly are. The voter crosses a ballot, which is placed in a sealed guarded box, then counted by representatives from all sides. Electronic voting is less transparent, and whilst not perfect physical voting requires far more effort and conspiracy to fake.

@Marek Kobra Not the best example of a functioning voting system it's true... However the fact everyone knows it was unfair is in favor of physical voting. The observers reported the tampering with ballots, something far harder to do using a electronic system. And regardless of the voting system very little can stop a government seizing power through force.

@Marek Kobra HE’S EVEN MORE POWERFUL

Well this doesnt sound dangerous at all-

You wouldn't want to bundle all your data, it's way safer to give only what's reasonably needed in that situation

@@agentnine3973 I'm sure 20 years ago they would say the same thing about the problems/solutions we are creating today.

@@asronome But what if you are the one in control of all of it?

@@JR-mp9wu you can still get hacked, and it would probably be much easier since you don’t have the resources of a tech giant. The reason that bundling all of your data together is dangerous is because you’re putting all of your eggs in one basket, regardless of where that basket is. Interesting idea though.

Im writing an essay on Marrakech right now!

This being posted 25 mins ago is the earliest i will ever be

Oh 100%. I loved that they both released videos right after each other too x)

Мои верные товарищи. Moi vernye tovarischi. My loyal comrades

Crypto trading is very profitable when you trade well.

Many of us don't know where to invest our money so We invest it in wrong places and to the wrong people

How does this whole bitcoin thing works, I'm interested in it and willing and ready to invest heavily but I need an assistant to properly guide me through on how to make a good startup and be successful in it without making mistakes.

Just bought $7K Ethereum and $14k bitcoin with the recent dump in crypto I was told it's the right time to buy and get ready for a skyrocket.

@@louishansell8765 The only safe reliable,genuine and highly experienced expert I can refer you to is Mrs Pamela Morgan

Hacking is like cooking. You have your tools to make food, the ingredients, and the recipe. Then your goal is some type of dish. You use your tools and ingredients to work around a recipe to get your dish!

No-one cares

@@good-sofa i do

Actually? I only ask because I'm curious. I question how I feel about it quite a bit and am always a little shocked when people say they don't care or just accept it is being lost.

@@JR-mp9wu not all gen z feel this way.....

@@JR-mp9wu that because they dont understand the implications of loss of privacy