Schnorr Signatures are a type of digital signature scheme that offers a more efficient and secure way to verify the authenticity of messages. Developed by Claus Schnorr, this method allows for shorter signatures and faster verification times compared to traditional schemes like ECDSA. One of the key advantages of Schnorr signatures is their ability to support signature aggregation, which means multiple signatures can be combined into a single signature. This feature enhances privacy and reduces the amount of data stored on the blockchain, making it particularly useful for applications in cryptocurrencies like Bitcoin.