Secure Authentication Token Management System

Provides industrial-strength security for storing sensitive Spotify API credentials using military-grade encryption techniques and secure storage practices.

Security architecture:

  • AES-256-GCM symmetric encryption algorithm (NIST recommended)
  • Authenticated encryption with data integrity verification
  • Unique initialization vectors (IV) for each encryption operation
  • Persistent secure key generation and storage
  • Automatic key management in user data directory

This module ensures that authentication tokens remain secure even if the token storage file is compromised, as the encryption key is stored separately and the tokens cannot be decrypted without it.

Token lifecycle:

  1. Authentication tokens received from Spotify API
  2. Tokens encrypted with unique IV and authentication tag
  3. Encrypted data stored securely in application data directory
  4. Tokens decrypted only when needed for API operations

Interfaces

TokenData

Functions

getTokenFilePath
getEncryptionKeyPath
getEncryptionKey
encrypt
decrypt
saveTokens
loadTokens
clearTokens