The Ethereum Foundation (EF) and Ethereum Name Service (ENS) are backing a proposed system for secure sign-in using Ethereum from decentralized identity software firm Spruce. Spruce’s system was selected after EF and ENS submitted a Request for Proposals in July encouraging developers and software firms to propose a sign-in package using Oauth — an open standard for access delegation. A Sept. 13 announcement states that the firm aims to give users control of their own online identities, offering an alternative to handing over one’s personal data to the likes of Google, Apple, and Facebook.