Schnorr Signatures

Schnorr Signatures make multi-signature transactions on blockchain networks more efficient because they combine the signatures of multiple signers into one. This master signature is the same length as an individual signature. So it takes up less block space than a typical multi-sig transaction requiring confirmation of multiple signatures to the blockchain.

Combining the signatures into one also enhances privacy. Since individual signers of the transaction are not added to the public records of the blockchain.

Further Reading Schnorr Signatures

Key Aggregation for Schnorr Signatures