Looking for someone who doesn't know what modular arithmetic is and wants to learn about cryptographic key exchanges
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Replying to @cryptodavidw
By the way, I find the common paint mixing analogy for diffie-hellman rather unhelpful. There's got to be some better way to explain it...
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Replying to @David3141593 @cryptodavidw
What about the paint mixing analogy do you not like? Genuinely curious. I resonated with it a lot when I first learned DH
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Replying to @danhwang88 @David3141593
It makes sense and seems elegant if you already know DH, but it's not useful if you don't know DH. My argument comes from me trying to explain DH to my friends with this analogy.
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Replying to @cryptodavidw @danhwang88
That's exactly how I feel. I can understand the analogy now, because I understand DH. The most useful thing for me was the minimal worked examples on the Wikipedia article, since I already had an understanding of exponentiation and discrete log.
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Replying to @David3141593 @danhwang88
btw if you want to look at the shape thing I wrote and tell me if it makes sense :P ?
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Replying to @cryptodavidw @danhwang88
Hmm, I have to say I think it's slightly flawed. If I was reading about this for the first time, my question would be "why can't an attacker just combine the two public keys to obtain the shared secret?"
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Definitely conveys the general concept, but without an answer to that question, I'd be left feeling that I didn't understand it at all.
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Oh, I just saw the Note explaining that. Fair enough.
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Replying to @David3141593 @danhwang88
Yeah that’s the limitation of the analogy. If you find a better one tell me :p
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I do think this is better than paint mixing however. Both have their limitations, but I think you explained the limitations better, rather than the somewhat dismissive "assume paint can't be unmixed". I also find your analogy simpler to digest, overall.
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