User Authentication

[git-union]

User Authentication

As a user, I want to be able to authenticate using Web3 wallets in addition to traditional methods to ensure secure access to a decentralized Scantron testing system across all my devices.

Acceptance Criteria

• User can log in using a MetaMask wallet.
• User can log in using a WalletConnect-compatible wallet.
• User can authenticate via a mobile device using QR code scanning.
• After authentication, the user should have access to their personalized dashboard.
• The system must support Ethereum and other EVM-compatible blockchain wallets.
• The system must provide a fallback to traditional email and password authentication.
• The system must support authentication across desktop, mobile, and tablet interfaces.
• Sessions must expire after a period of inactivity, requiring re-authentication.

sequenceDiagram
  participant U as User
  participant W as Web3 Wallet
  participant S as Scantron System
  U->>W: Request wallet signature
  W-->>U: Signature provided
  U->>S: Submit signature
  S->>S: Verify signature against blockchain
  S-->>U: Grant access and redirect to dashboard

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