Hi, This is a very nice introduction to ZKPs. Thanks for making it! Two comments - around 3:14, you mention that ZKP systems have “statistical completeness.” This is inaccurate. Most (if not all) ZKP systems have PERFECT completeness. It means that if the claim is true, then the verifier will ALWAYS accept the proof. For example, in your story about the cave door, if the prover indeed knows the code, he can ALWAYS prove it to the verifier. Second, around 5:40, you mention what you call a “drawback” of ZKPs, saying that they “don’t give a 100% guarantee that the claim is indeed true”. Although this claim is mathematically correct, it’s a bit misleading since it sounds like ZKPs are a “weaker” method to protect secrets compared to other cryptographic methods. Mathematically speaking, most of the cryptographic methods used around the world today don’t provide a 100% guarantee. Instead, they give 99.999…9% (with many nines), which is what ZKPs do. So, I won’t say that it’s a “drawback.” Thanks again for the cool video!
Isn't it a zero knowledge proof if they watch you open the door through a camera or something? The door can't be opened without the code. If you're able to open it, that proves you have the code. If you can just keep from revealing the code, opening the door is proof enough, you don't need the two paths. Or am I missing something?
@@MrHiiii5 Answer? The secret code to open the door is the answer ryt? He is just telling us to go through a route and come from the other. And we don't have to do it multiple times because he knows we didn't come from the same route. (Idk man I know I'm missing something crucial here, just cant figure out what)
As stated above, many of these privacy coins are not allowed per your country's laws. Read up on Haven (XHV), for example. Also, track Monero and notice how it's the one privacy coin that seems to be holding it's own during this bear market. There's a reason why people are investing in XMR!
this zkp example is not fully explained, you did not mention why even when a verifier is holding a camera and filming the entire process, a third party still cannot be convinced.
The problem with ZKP is that it over states it’s utility. There’s only limited use cases in the real world, without incurring more complexity in system design. Intellectually interesting. More hype than practical.
Completely disagree. Just the use case of insurance alone would justify the utility. It can be used anytime you want to eliminate any doubt, the human basically.
Any privacy in crypto is the way to go! I'm huge into the privacy coins and, now that there's ways to exchange them that can be accepted by anyone (many exchanges won't allow purchase per SEC laws) I am all in! Look at Haven for example.
but you know its a sin not calling them Alice and Bob..?
Hi,
This is a very nice introduction to ZKPs. Thanks for making it!
Two comments - around 3:14, you mention that ZKP systems have “statistical completeness.” This is inaccurate. Most (if not all) ZKP systems have PERFECT completeness. It means that if the claim is true, then the verifier will ALWAYS accept the proof. For example, in your story about the cave door, if the prover indeed knows the code, he can ALWAYS prove it to the verifier.
Second, around 5:40, you mention what you call a “drawback” of ZKPs, saying that they “don’t give a 100% guarantee that the claim is indeed true”. Although this claim is mathematically correct, it’s a bit misleading since it sounds like ZKPs are a “weaker” method to protect secrets compared to other cryptographic methods. Mathematically speaking, most of the cryptographic methods used around the world today don’t provide a 100% guarantee. Instead, they give 99.999…9% (with many nines), which is what ZKPs do. So, I won’t say that it’s a “drawback.”
Thanks again for the cool video!
Isn't it a zero knowledge proof if they watch you open the door through a camera or something? The door can't be opened without the code. If you're able to open it, that proves you have the code. If you can just keep from revealing the code, opening the door is proof enough, you don't need the two paths. Or am I missing something?
Why can't we just have jerry tell us which way to go so that we can come out through the other route and prove that we have the code in one go?
This breaks the strong requirement of zero knowledge, as jerry provided us with the knowledge of the answer.
@@MrHiiii5 Answer? The secret code to open the door is the answer ryt? He is just telling us to go through a route and come from the other. And we don't have to do it multiple times because he knows we didn't come from the same route. (Idk man I know I'm missing something crucial here, just cant figure out what)
You are missing the luck factor of intruder, some fake prover can bypass one or two times@@ishitaverma6149
So why isn't this wonderful discovery spoken about so much?
It is worrying to me...
They haven't figured it out probably. There are teams trying to solve this.. Have a look at panther protocol zkp.
As stated above, many of these privacy coins are not allowed per your country's laws. Read up on Haven (XHV), for example. Also, track Monero and notice how it's the one privacy coin that seems to be holding it's own during this bear market. There's a reason why people are investing in XMR!
Thanks for wonderful information . I have also created video explaining same but in Hindi language . Thanks for supporting
this zkp example is not fully explained, you did not mention why even when a verifier is holding a camera and filming the entire process, a third party still cannot be convinced.
Lopez Nancy Brown Susan Brown Mark
More about this subject please.
The problem with ZKP is that it over states it’s utility. There’s only limited use cases in the real world, without incurring more complexity in system design. Intellectually interesting. More hype than practical.
Completely disagree. Just the use case of insurance alone would justify the utility. It can be used anytime you want to eliminate any doubt, the human basically.
Until the tax office comes to rape you
Any privacy in crypto is the way to go! I'm huge into the privacy coins and, now that there's ways to exchange them that can be accepted by anyone (many exchanges won't allow purchase per SEC laws) I am all in! Look at Haven for example.
Can I get more details?
anyone have some projects thats working on ZKP?With low Market cap?
#Mina #railgun.
Findora
Nice project
👍👍💗
Good explanation. Noob question: In a real world application does one need to share some kind of public key for zero knowledge verification?
How about meld & vyfi?
33905 Crist Ford
I have 0.00 knowledge to understand this video. Please let us go back to pre-internet simplicity when pronouns and adjectives made sense..!!
hahahha what
Very dumb and useless idea.
Prove it
Sorry, then you definitely didn't understand anything.