# Identities & Keys ## **What is this section about?** This section explores how individuals, organizations, and even automated services are uniquely identified within the LearnCard ecosystem. We'll cover the different types of digital identities used, how they are created and managed, and the crucial role of cryptographic keys in keeping everything secure and interactions verifiable. ### **Why is this important for you to understand?** Secure and verifiable identity is the bedrock of trust in any digital interaction. Whether you're issuing a credential, receiving one, or verifying one, knowing who's who and how their identity is asserted and protected is paramount. Understanding these concepts helps you manage users and services effectively, control access, and ensure the integrity of all operations. It's like knowing the difference between a personal ID, a business license, and the keys that prove you own them. ### **What you'll learn:** You'll learn about Decentralized Identifiers (DIDs), the role of digital Wallets, the basics of Key Management (like public and private keys), and the different Profile Types that exist within LearnCard and when to use them. *** ### šŸ§° Wallets A **wallet** is where credentials live. It: * Stores verifiable credentials * Signs and verifies credentials * Manages identity (via DIDs) * Handles selective sharing and consent LearnCard gives you an in-app wallet that can be embedded in your own app, bot, or backend. *** ### šŸŖŖ Decentralized Identifiers (DIDs) DIDs are unique, cryptographically-verifiable identifiers that arenā€™t tied to centralized registries. * They let users prove ownership without relying on usernames or emails. * LearnCard generates and manages DIDs under the hood. DIDs are what make trust portableā€”and private. *** ### šŸ” DID Authentication **DID Authentication** lets users prove ownership of their DID to log in or access services. * Works like OAuth, but self-sovereign * No passwords or emails needed * Used across LearnCard to authorize actions --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.learncard.com/core-concepts/identities-and-keys.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.