This post was first published on Medium.
Schnorr is an alternative algorithm to the ECDSA algorithm currently used for signatures in Bitcoin. One key advantage is that multiple signatures, either in one input or multiple inputs of the same transaction, can be aggregated into a single signature. There has been a lot of hype about Schnoor signatures on BTC, which requires enormous changes as BIP 340 details.
 The legal implication of using Schnorr signatures is out of the scope of this article.
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