To endringer i samme krypto-filer.
G0-P0: deriveNonce() lagde nonce som en ren funksjon av radens identitet.
saveSession re-forsegler ved hvert ratchet-steg, så (key, nonce) gjentok seg
per konstruksjon over ULIK plaintext — GCM forbidden attack, som lekker både
XOR-en av plaintekstene og GHASH-subnøkkelen. Fire kallesteder: sealString og
sealBytes tar nå randomNonce(), openString/openBytes slutter å tvinge den.
Ingen migrering: aeadOpen har alltid lest nonce fra blob-prefikset, så
eksisterende data åpnes uendret. Testet eksplisitt. deriveNonce og
expectedNonce beholdt som deprecated — begge er del av den publiserte flaten.
Android var aldri rammet; KeystoreStorage bruker cipher.iv, som Android
Keystore alltid genererer tilfeldig.
V4.13: egen HKDF-gren for vault (shade-vault-{id,content,sig}-v1). Ikke
gjenbruk av shade-blob-*-v1: en vault-nøkkel leser hver eneste fil, en
profil-blob-nøkkel leser en vertsliste. Delt derivasjon ville gjort ett
kompromiss om til det andre.
9 nye tester; testene er bevist å ha verdi ved å reversere fiksen —
nøyaktig de tre som beskriver feilen faller. 87 grønne totalt.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Ships the Prism FR (encrypted-profile-storage-v4.9.md) as a generic
relay-side encrypted blob primitive: deterministically-located,
AEAD-sealed blobs keyed by a 32-byte slotId derived client-side via
HKDF from the user's master key. Unlocks credential-only bootstrap
of new devices into existing E2EE state — no QR, no physical access.
Server: BlobStore interface + Memory/Sqlite/Postgres impls,
createBlobRoutes for GET/PUT/DELETE /v1/blob/:slotId with TOFU pubkey
auth and If-Match CAS (409/412 semantics). Mounted on the same Hono
app as the inbox; SHADE_BLOB_PG_URL / SHADE_BLOB_DB_PATH /
SHADE_DISABLE_BLOB env-var plumbing in standalone.
SDK: createProfileNamespace high-level wrapper (HKDF derivation,
random-nonce AEAD seal, slotId-bound AAD) + low-level BlobClient.
Cross-platform test vectors in test-vectors/blob-storage.json.
New errors: ConflictError (409), PreconditionFailedError (412).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Adds the foundations Prism's web client (and any future browser-based
Shade app) needs: at-rest-encrypted IndexedDB storage that mirrors the
SQLite backend byte-for-byte at the AAD/nonce level, browser-safe
subpath imports so Vite/webpack/esbuild stop hitting bun:sqlite, and
KeyManager support for argon2id and N-factor composite unlock.
@shade/storage-encrypted
- EncryptedIndexedDBStorage (subpath: /idb) — full StorageProvider
using one object store per _enc table; reuses aeadSeal/aeadOpen +
row-codec sealers so a row sealed under the SQLite or Postgres
backend decrypts under IDB given the same KeyManager.
bumpPeerIdentityVersion is atomic under one IDB transaction.
- KeyManager argon2id source — memory-hard KDF for low-entropy
secrets (PINs). Backed by @noble/hashes/argon2 (already a transitive
dep). DEFAULT_ARGON2ID exported (m=64 MiB, t=3, p=1).
- KeyManager composite source — HKDF-combine N sub-sources into one
master. Every source mandatory; order significant by design;
composite-of-composite rejected; optional info string for app-level
domain separation.
- Subpath exports (/crypto, /sqlite, /postgres, /idb) plus a `browser`
condition on the default import that resolves to a barrel
excluding the Bun- and Postgres-specific entries. Browser bundles
no longer pull bun:sqlite transitively.
Tests
- 73 tests in shade-storage-encrypted (was 31). New coverage:
argon2id determinism + reject paths, composite same-factors → same
master, wrong-PIN/passphrase/order-swap → different master, info
domain separation, all 28 StorageProvider methods on
EncryptedIndexedDBStorage, fingerprint-mismatch rejection, and
cross-impl roundtrip with EncryptedSQLiteStorage proving the AAD/
nonce derivation is implementation-agnostic.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
