Hi, I have a question about ECC Point addition from the intro document in the grin repository: https://github.com/ignopeverell/grin/blob/master/doc/intro.md
Under "Transacting with MimbleWimble" a new curve G is introduced: > For these reasons, we introduce a second ECC curve *G* and a > private key *r* used as a *blinding factor*. And this curve G is used for Point addition: > r*G + v*H Two questions, are G and H in the same group in secp256k1? That seems to be the construction Greg Maxwell made in his Confidential Transactions paper for Pedersen Commitments: https://elementsproject.org/elements/confidential-transactions/ If it is not, then is G a different curve altogether? As in, not secp256k1? In that case, how is Point Addition defined between points on different curves? Jimmy
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