Identity & Authentication

OAuth 1.0a (RFC 5849)

Adhering to IETF standards is crucial for software migrations, ensuring interoperability, security, and performance of new systems. By following established protocols and best practices, teams can navigate challenges effectively, streamline compliance, and achieve successful transitions from legacy systems to modern platforms.

by Internet Engineering Task Force

OAuth 2.0 (RFC 6749)

Adhering to IETF standards during software migrations is critical for ensuring interoperability, security, and performance. By implementing best practices, leveraging the right tools, and addressing common challenges, teams can navigate the complexities of migration projects confidently while maintaining compliance.

by Internet Engineering Task Force

OAuth 2.1 (Draft)

Understanding and adhering to IETF standards during software migrations is crucial for ensuring interoperability, security, and compliance. By implementing best practices and utilizing the right tools, teams can effectively navigate the complexities of migration projects while minimizing risks and enhancing performance.

by Internet Engineering Task Force

OpenID Connect 1.0

Compliance with IETF standards is crucial for successful migration projects, ensuring interoperability, security, and adherence to best practices. By focusing on documentation, rigorous testing, and ongoing monitoring, teams can navigate the complexities of migrations while safeguarding data integrity and system functionality.

by Internet Engineering Task Force

SAML 2.0 (OASIS)

Adhering to OASIS standards during software migrations ensures interoperability, security, and efficiency, making transitions smoother and more compliant with industry best practices. By focusing on key requirements, compliance considerations, and leveraging the right tools, teams can successfully navigate the challenges inherent in migration projects.

by OASIS

SCIM 2.0 (RFC 7644)

Understanding and adhering to IETF standards is crucial for successful software migrations. These standards ensure interoperability, security, and performance, helping teams minimize risks and optimize the transition process. By following best practices and utilizing the right tools, organizations can achieve compliance and facilitate a seamless migration experience.

by Internet Engineering Task Force

FIDO2 WebAuthn Level 2

Adopting FIDO Alliance standards during software migrations is crucial for enhancing security and user trust. This guide outlines practical steps for compliance, tools to assist in maintaining standards, and ways to overcome common challenges faced during the migration process.

by FIDO Alliance

JWT (RFC 7519)

Understanding migration standards is crucial for small and mid-sized teams looking to successfully transition their software systems. By adhering to established best practices for data integrity, security, and performance, organizations can mitigate risks, ensure compliance, and achieve smoother migrations. This guide outlines key requirements, practical applications, and tools to help your team navigate the complexities of software migrations effectively.

by Internet Engineering Task Force

CBOR Web Token (RFC 8392)

Adhering to IETF standards is crucial for successful software migrations, ensuring interoperability, security, and performance. By understanding key requirements and leveraging appropriate tools, migration teams can navigate compliance challenges effectively.

by Internet Engineering Task Force

W3C DID Core 1.0

Adhering to W3C standards during software migrations is essential for ensuring interoperability, accessibility, and a seamless user experience. This guide provides practical insights into compliance requirements, tools, and common challenges, enabling teams to navigate migration projects effectively while maintaining adherence to crucial web standards.

by World Wide Web Consortium

VC Data Model 2.0

Adhering to W3C standards during software migrations is essential for ensuring accessibility, interoperability, and legal compliance. This comprehensive guide explores the key requirements and strategies for integrating these standards into your migration projects, helping you create robust and user-friendly systems. Embrace these guidelines to reduce risks and enhance the overall user experience during transitions.

by World Wide Web Consortium

ISO/IEC 18013-5:2021 (Mobile DL)

ISO/IEC standards provide essential guidelines for software migrations, emphasizing quality assurance, data integrity, and security. Adhering to these standards mitigates risks, ensures compliance with regulations, and fosters stakeholder confidence throughout the migration process.

by ISO/IEC Joint Technical Committee

RFC 7636 (PKCE)

Adhering to established technical standards during software migrations is crucial for ensuring interoperability, security, and efficiency. By following key requirements and implementing appropriate tools, teams can navigate common challenges and maintain compliance, ultimately leading to more successful migration projects.

by Internet Engineering Task Force

Secrets Management Best Practices

Practices for storing, rotating, and accessing credentials and keys securely, keeping them out of source code and limiting their exposure.

Principle of Least Privilege

A security principle that grants every user, service, and process only the minimum access required to perform its function, and no more.

OAuth 2.0 and OpenID Connect

OAuth 2.0 delegates authorization via access tokens; OpenID Connect adds an identity layer for authentication. Together they secure API access and single sign-on.

Federated Identity

Delegate authentication to an external identity provider so applications trust tokens rather than managing credentials themselves.

How to Implement OAuth2 and OIDC Login

Add Authorization Code flow with PKCE to a web app using an OIDC provider, then validate the ID token and create a session.

How to Secure an API with JWT Authentication

Issue signed JWT access tokens, validate them on every request, and refresh them safely without leaking long-lived credentials.

How to Implement Role-Based Access Control

Model roles and permissions, enforce them with middleware, and centralize authorization checks so access rules stay consistent.

SSO Migration Checklist

Plan and execute a migration to centralized single sign-on with minimal disruption to users and applications.

What is the difference between OAuth 2.0 and OpenID Connect?

OAuth 2.0 is an authorization framework: it lets an application obtain delegated access to resources on a user's behalf without sharing the user's credentials, issuing access tokens for that purpose. OpenID Connect (OIDC) is an identity layer built on top of OAuth 2.0 that adds authentication, returning a signed ID token (a JWT) describing who the user is. In short, OAuth answers "what can this app access" and OIDC answers "who is this user." Use OIDC when you need login and user identity, and plain OAuth when you only need delegated authorization.

What is a JWT?

A JSON Web Token (JWT) is a compact, URL-safe token format that carries claims as a base64url-encoded header, payload, and signature separated by dots. The signature, using HMAC or a public/private key, lets a recipient verify the token was issued by a trusted party and not altered, without a database lookup. JWTs are widely used for stateless authentication and for passing identity claims between services. Note that the payload is encoded, not encrypted, so it should never contain secrets, and tokens should be short-lived because they are hard to revoke before expiry.

Sessions vs tokens: what is the difference for authentication?

Session-based authentication stores state on the server and gives the client an opaque session ID, usually in a cookie; the server looks up the session on each request, which makes revocation easy but requires shared session storage to scale. Token-based authentication, typically using JWTs, encodes the user's identity and claims in a self-contained token the server verifies by signature, avoiding a lookup but making early revocation harder. Sessions suit traditional server-rendered apps; tokens suit stateless APIs, mobile clients, and distributed services. Many systems combine both, using short-lived access tokens with server-tracked refresh tokens.

What is the difference between an access token and a refresh token?

An access token is a short-lived credential a client sends with each request to prove it is authorized to call an API, typically expiring in minutes. A refresh token is a longer-lived credential used only to obtain new access tokens when the current one expires, without forcing the user to log in again. Keeping access tokens short-lived limits the damage if one leaks, while refresh tokens are stored more securely and can be revoked server-side. This pairing balances security with a smooth user experience in OAuth 2.0 and OIDC flows.

What is an API key and how is it different from a token?

An API key is a static secret string that identifies and authenticates a calling application or project, usually passed in a header and tied to a set of permissions and quotas. Unlike short-lived OAuth access tokens, API keys typically do not expire on their own and identify an application rather than an end user, which makes them simple but riskier if leaked. They suit server-to-server integrations and usage metering, but should be scoped narrowly, rotated regularly, and never embedded in client-side code. For user-specific authorization with delegated scopes and expiry, OAuth tokens are the better fit.

What is the principle of least privilege?

The principle of least privilege (PoLP) states that every user, process, or system should have only the minimum permissions required to perform its task, and no more. Limiting access reduces the blast radius of a compromised account or service and shrinks the attack surface available to an intruder. In practice it means scoped IAM roles, time-bound or just-in-time access, and regular review to remove unused or excessive permissions.

What is multi-factor authentication (MFA)?

Multi-factor authentication requires a user to present two or more independent proofs of identity from different categories: something you know (a password), something you have (a phone or hardware key), or something you are (a fingerprint). Because an attacker would need to compromise multiple factors at once, MFA blocks the vast majority of account-takeover attacks that rely on stolen passwords. Phishing-resistant factors like FIDO2/WebAuthn hardware keys are stronger than SMS one-time codes, which can be intercepted or SIM-swapped.

What is the difference between OAuth 2.0 and OpenID Connect?

OAuth 2.0 is an authorization framework that lets an application obtain delegated, scoped access to a user's resources without sharing their password, by exchanging tokens. OpenID Connect (OIDC) is an authentication layer built on top of OAuth 2.0 that adds a standardized ID token (a signed JWT) so an application can verify who the user is. In short, OAuth 2.0 answers "what is this app allowed to do," while OIDC answers "who is this user."

What is the difference between RBAC and ABAC?

RBAC (role-based access control) grants permissions based on a user's assigned role, such as admin or editor, which is simple to manage and audit but can lead to role explosion in complex environments. ABAC (attribute-based access control) makes decisions dynamically by evaluating attributes of the user, resource, action, and context, like department, data classification, or time of day. ABAC is far more flexible and fine-grained but harder to set up and reason about, so many systems combine both.