The Side Channel

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10:01 AM

Using the popular analogy of colors that explains DH key exchange, can't we guess the secret color knowing the shared and common colors?>> common (public) color+ secret (private) color= shared (public) color

2 hours later…

kelalaka

11:55 AM

The analogy is used for understanding, not in real-life security. Color mixing doesn't have modulus so color mixing is one way to black pigment. That is it's weak point.

5 hours later…

Crypto HNQ

4:39 PM

Q: Using zk-snarks to verify a highest bid

I understand that we can verify that given a private input a and a public input b that we can verify a is greater than b. But what if I want to keep both inputs private? The context is a sealed auction where we need to verify who out of the private bidders has the highest bid. I haven't seen any ...