Encryption Strong encryption protects your data at rest and in transit. At Rest Encryption Algorithm: AES-256-GCM (Galois/Counter Mode) Key: SHA-256 hash of ENCRYPTION_KEY Nonce: 12 bytes from crypto/rand Encoding: Base64 for storage Encrypted Data Types Provider credentials (AWS keys, API tokens) 2FA TOTP secrets and backup codes Environment variable values SSH private keys Database connection strings In Transit Encryption TLS 1.2+ required for all connections HSTS header with 1-year max-age Secure cookies (HttpOnly, Secure, SameSite=Lax) SSH Key Security Algorithm: Ed25519 (faster, more secure than RSA) Format: OpenSSH private key format Fingerprint: SHA-256 based