| 1 | // 🤖 Generates internal/e2ee/testdata/vectors.json from web/static/crypto.js — |
| 2 | // the ground truth for the Go port's wire-format compatibility. Every blob in |
| 3 | // the file was produced by the exact code the browser runs; the Go tests must |
| 4 | // decrypt/unwrap/open all of them and reproduce the deterministic derivations. |
| 5 | // |
| 6 | // Not part of `npm test` (vectors are committed). Regenerate after any |
| 7 | // deliberate crypto.js change: |
| 8 | // |
| 9 | // node test/gen-e2ee-vectors.mjs # then re-run: go test ./internal/e2ee |
| 10 | // |
| 11 | // Randomness is fine here — the vectors carry their own keys. |
| 12 | |
| 13 | import { writeFileSync } from "node:fs"; |
| 14 | import { |
| 15 | bytesToB64url, generateKey, encrypt, encryptBytes, |
| 16 | randomSecret, deriveInvite, wrapGroupKey, |
| 17 | generateUserKeypair, wrapThreadKey, sealForPub, |
| 18 | } from "../web/static/crypto.js"; |
| 19 | |
| 20 | const OUT = new URL("../internal/e2ee/testdata/vectors.json", import.meta.url); |
| 21 | |
| 22 | const aesPayloads = [ |
| 23 | {}, |
| 24 | { text: "hello world", from: "Paul" }, |
| 25 | { text: "unicode: ünïcødé 🎉 — em-dash, \"quotes\", \\backslash\\, \nnewline" }, |
| 26 | { nested: { deep: [1, 2.5, true, null, "x"] }, n: 1747 }, |
| 27 | ]; |
| 28 | |
| 29 | const sealPayloads = [ |
| 30 | { token: "cap-abc123", exp: 1751500000 }, |
| 31 | { note: "🤖 sealed unicode ✓" }, |
| 32 | ]; |
| 33 | |
| 34 | const vectors = { aesJSON: [], aesBytes: [], invites: [], threadWraps: [], seals: [] }; |
| 35 | |
| 36 | for (const obj of aesPayloads) { |
| 37 | const { key, b64 } = await generateKey(); |
| 38 | vectors.aesJSON.push({ key: b64, plaintext: obj, blob: await encrypt(key, obj) }); |
| 39 | } |
| 40 | |
| 41 | for (const len of [0, 1, 13, 4096]) { |
| 42 | const { key, b64 } = await generateKey(); |
| 43 | const pt = crypto.getRandomValues(new Uint8Array(len)); |
| 44 | vectors.aesBytes.push({ |
| 45 | key: b64, |
| 46 | plaintextB64: bytesToB64url(pt), |
| 47 | blobB64: bytesToB64url(await encryptBytes(key, pt)), |
| 48 | }); |
| 49 | } |
| 50 | |
| 51 | for (let i = 0; i < 3; i++) { |
| 52 | const t = randomSecret(); |
| 53 | const inv = await deriveInvite(t); |
| 54 | const groupKey = (await generateKey()).b64; |
| 55 | vectors.invites.push({ |
| 56 | t, |
| 57 | id: inv.id, |
| 58 | claimSecret: inv.claimSecret, |
| 59 | claimHash: inv.claimHash, |
| 60 | groupKey, |
| 61 | wrappedGroupKey: await wrapGroupKey(groupKey, inv.wrapKey), |
| 62 | }); |
| 63 | } |
| 64 | |
| 65 | for (let i = 0; i < 3; i++) { |
| 66 | const kp = await generateUserKeypair(); |
| 67 | const threadKey = (await generateKey()).b64; |
| 68 | vectors.threadWraps.push({ |
| 69 | publicKey: kp.publicKey, |
| 70 | privateKey: kp.privateKey, |
| 71 | threadKey, |
| 72 | wrapped: await wrapThreadKey(threadKey, kp.publicKey), |
| 73 | }); |
| 74 | } |
| 75 | |
| 76 | for (const obj of sealPayloads) { |
| 77 | const kp = await generateUserKeypair(); |
| 78 | vectors.seals.push({ |
| 79 | publicKey: kp.publicKey, |
| 80 | privateKey: kp.privateKey, |
| 81 | plaintext: obj, |
| 82 | sealed: await sealForPub(kp.publicKey, obj), |
| 83 | }); |
| 84 | } |
| 85 | |
| 86 | writeFileSync(OUT, JSON.stringify(vectors, null, 2) + "\n"); |
| 87 | console.log(`wrote ${OUT.pathname}`); |
| 88 | |
amadan