A ring signature is a digital signature that allows a message to be signed by a member of a group, or a ring. It proves that someone in the ring signs, but there is no way to tell who the signer is.
The course is divided into four stages, discussing the concept of digital signatures, pre-requisites to understanding ECDSA, technical aspects of ECDSA, and how it forms part of the Bitcoin protocol.
The three-hour free course is aimed at developers and breaks down digital signatures – both from a theoretical and practical standpoint – with a particular focus on the Elliptic Curve Digital Signature Algorithm (ECDSA) which is utilized in BSV.
Many Bitcoin Core (BTC) pundits have argued that one of the reasons scaling is a monumental task is because signature validations require a serious amount of CPU time, which raises costs substantially.