Software design and development; Software as a service (SaaS) services featuring software for designing, customizing, creating, issuing, distributing, managing, updating, and revoking digital keys compatible with digital wallets, mobile devices, and smartwatches, for issuing credentials that are compatible with pre-installed digital wallet applications on mobile devices and smartwatches, for enabling device-based authentication, contactless access control, and mobile key management, for encry...