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Authentication Patterns

Secure and user-friendly authentication flows for login, signup, and password management.

Overview

Authentication is a critical part of any application. MUZISYSTEM provides battle-tested patterns for common authentication flows that prioritize both security and user experience.

These patterns are designed to work with modern authentication systems including JWT, OAuth, and social login providers.

Authentication Flows

🔐

Login

Standard email/password login with remember me option and error handling. Includes email validation, password visibility toggle, and social login options.

✍️

Signup

User registration with real-time validation and password strength indicator. Features terms acceptance, email verification, and social signup options.

🔑

Password Reset

Secure password recovery flow with email verification, token generation, and expiration handling. Includes password confirmation and success feedback.

🔒

Two-Factor Auth

Additional security layer with TOTP or SMS verification. Supports QR code setup, backup codes, SMS fallback, and device trust.

Security Best Practices

  • Password Requirements - Minimum 8 characters, mix of letters, numbers, and symbols
  • Rate Limiting - Prevent brute force attacks with exponential backoff
  • HTTPS Only - All authentication requests must use secure connections
  • Token Expiration - Short-lived access tokens (15min) with refresh tokens
  • Session Management - Secure cookie handling with HttpOnly and SameSite flags
  • CSRF Protection - Token-based protection for all state-changing operations

Social Login Integration

Support for popular OAuth providers:

G

Google

OAuth 2.0 authentication with Google accounts. Most widely used provider with high trust.

GH

GitHub

Perfect for developer-focused applications. Provides access to user repositories and profile.

A

Apple

Privacy-focused authentication with email relay option. Required for iOS apps.

MS

Microsoft

Enterprise-grade authentication with Azure AD integration. Ideal for B2B applications.

Social login reduces friction for users while maintaining security through trusted providers.

Authentication Flow

Step-by-step process from login to session:

Step 1
User Input
User enters credentials (email/password or social login)
Step 2
Client Validation
Immediate feedback on format and required fields
Step 3
Server Authentication
Secure verification against database with rate limiting
Step 4
Token Generation
JWT access token (15min) + refresh token (7 days)
Step 5
Session Created
User authenticated and redirected to dashboard

Error Handling

Clear and actionable error messages:

  • Invalid Credentials - "Email or password is incorrect"
  • Account Locked - "Too many failed attempts. Try again in X minutes"
  • Email Not Verified - "Please verify your email before logging in"
  • Session Expired - "Your session has expired. Please log in again"

Avoid revealing whether an email exists in the system to prevent enumeration attacks.

Accessibility

  • Keyboard Navigation - Full keyboard support for all forms
  • Screen Reader - Proper labels and ARIA attributes
  • Error Announcement - Errors announced to screen readers
  • Focus Management - Focus moved to errors when validation fails
  • Password Visibility - Toggle announced to assistive technology

Implementation Guidelines

  • Client-Side Validation - Immediate feedback for better UX
  • Server-Side Validation - Always validate on the server (never trust client)
  • Loading States - Show spinners during authentication requests
  • Success Feedback - Confirm successful actions before redirecting
  • Redirect Logic - Return users to their intended destination after login