The Schnorr signatures algorithm promises to help to address one of the most pressing problems affecting Bitcoin today: scalability.
An array of new technologies and schemes are being proposed that could help address Bitcoin’s scalability problem, such as Segwit, Lightning Network, and Schnorr signatures.
For example, many view the Schnorr signatures algorithm as a simple way of structuring digital signatures that could significantly improve the efficiency of validating a Bitcoin transaction, and it could offer new multi-signature (multisig) modes.
In this regard, Sam Wouters, Bitcoin and Blockchain speaker, wrote an article entitled Why Schnorr Signatures Will Help Solve Two of Bitcoin’s Biggest Problems Today. In it, he explains how the Schnorr signatures protocol could help solve Bitcoin’s scalability problem and how it could defend Bitcoin from certain types of spam attacks.
Source: Schnorr Signatures Might Be Bitcoin’s Next Step Forward – Bitcoinist.com