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Adding Public Keys … Part 1: The Schnorr Way

The Schnorr signature method supports the merging of public keys to produce a single signature for a transaction [Schnorr aggregate]. Unfortunately, it is not secure and suffers from the cancellation problem [here], but which can be overcome with the MuSig method or the BN Method [here]. In this article, I will illustrate how the Schnorr signature method works. The MuSig method is outlined by Greg Maxwell et al…

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