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Adds the server side of the per-user encryption vault. Phase 1 shipped
the client foundation (no-op while every table is enabled:false). This
commit lets the client actually fetch a master key when Phase 3 flips
the registry switches.
Schema (Drizzle + raw SQL migration)
- auth.encryption_vaults: per-user wrapped MK + IV + format version +
kek_id stamp + created/rotated timestamps. PK = user_id, ON DELETE
CASCADE so account deletion wipes the vault.
- auth.encryption_vault_audit: append-only trail of init/fetch/rotate
actions with IP, user-agent, HTTP status, free-form context.
- sql/002_encryption_vaults.sql: idempotent CREATE TABLE + ENABLE +
FORCE row-level security with a `current_setting('app.current_user_id')`
policy on both tables. FORCE makes the policy apply to the table
owner too — no bypass via grants.
KEK loader (services/encryption-vault/kek.ts)
- Loads a 32-byte AES-256 KEK from the MANA_AUTH_KEK env var (base64).
- Production: missing or wrong-length input is fatal at boot.
- Development: 32-zero-byte fallback so contributors can run the
service without provisioning a secret. Logs a loud warning.
- wrapMasterKey / unwrapMasterKey use Web Crypto AES-GCM-256 over the
raw 32-byte MK with a fresh 12-byte IV per wrap. Returns base64
pair for storage.
- generateMasterKey + activeKekId helpers used by the service.
- Future migration to KMS / Vault: only loadKek() changes; the
kek_id stamp on each row tracks which KEK produced it.
EncryptionVaultService (services/encryption-vault/index.ts)
- init(userId): idempotent — returns existing MK or mints a new one.
- getMasterKey(userId): unwraps the stored MK; throws VaultNotFoundError
on no-row so the route can return 404 cleanly.
- rotate(userId): mints fresh MK, replaces wrap. Caller is on the
hook for re-encryption — destructive by design.
- withUserScope(userId, fn): wraps every read/write in a Drizzle
transaction with set_config('app.current_user_id', userId, true)
so the RLS policy admits only the matching row. Empty userId is
rejected up-front.
- writeAudit() appends a row to encryption_vault_audit on every
action including failures, so probing attempts leave a trail.
Routes (routes/encryption-vault.ts)
- POST /api/v1/me/encryption-vault/init — idempotent bootstrap
- GET /api/v1/me/encryption-vault/key — fetch the active MK
- POST /api/v1/me/encryption-vault/rotate — destructive rotation
- All return base64-encoded master key bytes plus formatVersion +
kekId. JWT-protected via the existing /api/v1/me/* middleware.
- readAuditContext() pulls X-Forwarded-For + User-Agent off the
request for the audit row.
Bootstrap (index.ts)
- loadKek() runs at top-level await before any route can fire so a
misconfigured KEK fails closed at boot, never at request time.
- encryptionVaultService is mounted under /api/v1/me/encryption-vault
so it inherits the existing JWT middleware and shows up next to the
GDPR self-service endpoints.
Tests (services/encryption-vault/kek.test.ts)
- 11 Bun-test cases covering: KEK load (happy path, wrong length,
idempotent, before-load guard), generateMasterKey randomness,
wrap/unwrap roundtrip, IV uniqueness across repeated wraps,
wrong-MK-length rejection, tampered-ciphertext rejection,
wrong-length IV rejection, wrong-KEK rejection.
- Service-level integration tests deferred — they need a real
Postgres for the RLS behaviour, set up via existing mana-sync
test pattern in CI.
Config + env
- .env.development gains MANA_AUTH_KEK= (empty → dev fallback)
with a comment explaining the production requirement.
- services/mana-auth/package.json gains "test": "bun test".
Verified: 11/11 KEK tests passing, 31/31 Phase 1 client tests still
passing, only pre-existing TS errors remain in mana-auth (auth.ts:281
forgetPassword + api-keys.ts:50 insert overload — both unrelated).
Phase 3: client wires the MemoryKeyProvider to GET /encryption-vault/key
on login, flips registry entries to enabled:true table by table, and
extends the Dexie hooks to call wrapValue/unwrapValue on configured
fields.
Phase 4: settings UI for lock state, key rotation, recovery code opt-in.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
28 lines
605 B
JSON
28 lines
605 B
JSON
{
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"name": "@mana/auth",
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"version": "0.1.0",
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"private": true,
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"type": "module",
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"scripts": {
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"dev": "bun run --watch src/index.ts",
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"start": "bun run src/index.ts",
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"test": "bun test",
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"db:push": "drizzle-kit push",
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"db:generate": "drizzle-kit generate",
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"db:studio": "drizzle-kit studio"
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},
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"dependencies": {
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"hono": "^4.7.0",
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"better-auth": "^1.4.3",
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"drizzle-orm": "^0.38.3",
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"postgres": "^3.4.5",
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"jose": "^6.1.2",
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"bcryptjs": "^3.0.2",
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"zod": "^3.24.0"
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},
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"devDependencies": {
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"@types/bcryptjs": "^2.4.6",
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"drizzle-kit": "^0.30.4",
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"typescript": "^5.9.3"
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}
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}
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