4min chapter

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Pieter Wuille and Tim Ruffing, Schnorr, MuSig, FROST and more - Episode 26

The Chaincode Podcast

CHAPTER

Cross-Input Signature Aggregation - What Is It?

The history of music starts with the idea of cross-input signature aggregation. The problem is that if you're going to aggregate all these keys together, they may not trust each other. This is called the rogue key attack or the key cancellation attack. It's very important that there is no way for me to come up with a fake key that somehow, when combined with your keys, result in something I could sign for.

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