# User Authentication System

**Epic ID**: `user-authentication-v2`
**Status**: Not Started
**Estimated Duration**: 8 weeks
**Owner**: Security Team
**Priority**: High

## Epic Description

Implement a comprehensive user authentication system with secure password handling, multi-factor authentication, and session management.

## Strategic Goals

1. Provide secure user login and registration
2. Implement multi-factor authentication (MFA)
3. Ensure session security and management
4. Support password reset functionality
5. Meet compliance requirements

## Phases

### Phase 1: Core Authentication
**Status**: Not Started
**Duration**: 3 weeks
**Dependencies**: None

Implement basic user registration and login with secure password hashing.

### Phase 2: Session Management
**Status**: Not Started
**Duration**: 2 weeks
**Dependencies**: Phase 1

Build secure session management with proper token handling.

### Phase 3: Multi-Factor Authentication
**Status**: Not Started
**Duration**: 2 weeks
**Dependencies**: Phase 2

Add MFA support using TOTP and backup codes.

### Phase 4: Security Hardening
**Status**: Not Started
**Duration**: 1 week
**Dependencies**: Phase 3

Implement rate limiting, account lockout, and security logging.