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encryption

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This commit is contained in:
eric
2026-10-20 05:27:18 -04:00
parent 3cee89d023
commit 4080114085
10 changed files with 324 additions and 72 deletions
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tests/wallet-backup.test.ts
+77 -19
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@@ -3,7 +3,7 @@ import assert from 'node:assert/strict';
import { createHash, createPrivateKey, createPublicKey, generateKeyPairSync,
randomBytes, sign as nativeSign, verify as nativeVerify, webcrypto } from 'node:crypto';
import { encryptWallet, decryptWallet, type WalletBackup } from '../shared/wallet-backup.ts';
import { getWallet, exportWallet, restoreWallet, sign, type Wallet } from '../src/wallet.ts';
import { getWallet, exportWallet, restoreWallet, protectWallet, unlockWallet, walletStatus, lockWallet, sign, touchWallet, WALLET_IDLE_MS } from '../src/wallet.ts';
const subtle = webcrypto.subtle as SubtleCrypto;
// Ephemeral test credentials only; no production identities or secrets.
@@ -49,7 +49,7 @@ test('Node WebCrypto backup roundtrip preserves SPKI SHA256 identity and signing
assert.equal((wallet.privateKey.algorithm as EcKeyAlgorithm).namedCurve, 'P-256');
assert.deepEqual(Buffer.from(await subtle.exportKey('pkcs8', wallet.privateKey)),
Buffer.from(await subtle.exportKey('pkcs8', privateKey)));
const signature = await sign(wallet, 'portable identity');
const signature = encode(await subtle.sign({name:'ECDSA',hash:'SHA-256'},wallet.privateKey,new TextEncoder().encode('portable identity')));
assert.equal(nativeVerify('sha256', Buffer.from('portable identity'), {
key: createPublicKey({ key: spki, format: 'der', type: 'spki' }), dsaEncoding: 'ieee-p1363',
}, Buffer.from(signature, 'base64')), true);
@@ -58,7 +58,7 @@ test('Node WebCrypto backup roundtrip preserves SPKI SHA256 identity and signing
assert.equal(Buffer.from(backup.salt, 'base64').length, 16);
assert.equal(Buffer.from(backup.iv, 'base64').length, 12);
assert.ok(Buffer.byteLength(JSON.stringify(backup)) < 32 * 1024);
const again = await exportWallet(wallet, password);
const again = await encryptWallet(wallet.privateKey,wallet.publicKey,password);
assert.notEqual(again.salt, backup.salt);
assert.notEqual(again.iv, backup.iv);
assert.notEqual(again.ciphertext, backup.ciphertext);
@@ -145,11 +145,12 @@ test('wallet persistence commits before restore resolves, isolates demo DB, retr
// Browser IndexedDB/Web Locks are additionally checked against the real API.
const originalIDB = Object.getOwnPropertyDescriptor(globalThis, 'indexedDB');
const originalNavigator = Object.getOwnPropertyDescriptor(globalThis, 'navigator');
let stored: Wallet | undefined;
let stored: Record<string, unknown> | undefined;
let failWrites = 0;
let permanentFailure = false;
let lockCalls = 0;
let commits = 0;
let beforeWrite: (()=>void)|undefined;
const opened: string[] = [];
const installNavigator = (locks: boolean) => Object.defineProperty(globalThis, 'navigator', { configurable: true,
value: locks ? { locks: { request: async (name: string, callback: () => Promise<unknown>) => {
@@ -161,16 +162,20 @@ test('wallet persistence commits before restore resolves, isolates demo DB, retr
const request = { result: {
close() {},
transaction(_store: string, mode: string) {
let replacement: Wallet | undefined;
if(mode==='readwrite'&&beforeWrite){const mutate=beforeWrite;beforeWrite=undefined;mutate();}
let replacement: Record<string, unknown> | undefined;
let aborted=false;
const tx = {
error: null as DOMException | null,
oncomplete: () => {}, onabort: () => {}, onerror: () => {},
abort: () => { aborted=true;queueMicrotask(()=>tx.onabort()); },
objectStore: () => ({
get: () => {
const get = { result: stored, onsuccess: () => {} };
queueMicrotask(() => {
get.onsuccess();
setImmediate(() => {
if(aborted)return;
if (mode === 'readwrite' && (permanentFailure || failWrites-- > 0)) {
tx.error = new DOMException('Simulated storage failure', permanentFailure ? 'QuotaExceededError' : 'AbortError');
tx.onabort();
@@ -183,7 +188,7 @@ test('wallet persistence commits before restore resolves, isolates demo DB, retr
});
return get;
},
put: (value: Wallet) => { replacement = value; },
put: (value: Record<string,unknown>) => { replacement = value; },
}),
};
return tx;
@@ -194,35 +199,88 @@ test('wallet persistence commits before restore resolves, isolates demo DB, retr
},
} });
try {
lockWallet();
installNavigator(false);
const initial = await Promise.all(Array.from({ length: 4 }, () => getWallet()));
assert.equal(new Set(initial.map(wallet => wallet.address)).size, 1);
assert.equal(initial[0].privateKey.extractable, true);
assert.equal(await getWallet(),undefined);
assert.equal(await walletStatus(),'empty');
assert.equal(stored,undefined); // Startup never silently creates a plaintext key.
const initial = await protectWallet(password);
assert.equal('privateKey' in initial,false);
assert.equal((stored as Record<string,unknown>|undefined)?.format,'wikideck-local-vault');
assert.equal('privateKey' in stored!,false);
const exported=await exportWallet(initial,password);
assert.equal((await decryptWallet(exported,password)).address,initial.address);
const signature=await sign(initial,'session-signature');
const publicKey=await subtle.importKey('spki',Buffer.from(initial.publicKey,'base64'),{name:'ECDSA',namedCurve:'P-256'},false,['verify']);
assert.equal(await subtle.verify({name:'ECDSA',hash:'SHA-256'},publicKey,Buffer.from(signature,'base64'),new TextEncoder().encode('session-signature')),true);
lockWallet(); assert.equal(await getWallet(),undefined);
await assert.rejects(sign(initial,'locked'),/locked/);
assert.equal(await walletStatus(),'locked');
await assert.rejects(unlockWallet('incorrect-password'),/Cannot unlock/);
const unlocked=await unlockWallet(password);
assert.equal(unlocked.address,initial.address);
await assert.rejects(sign(initial,'stale handle'),/locked or changed/);
const pendingExport=exportWallet(unlocked,password);lockWallet();
await assert.rejects(pendingExport,/locked|changed/);
const unlocking=unlockWallet(password);lockWallet();
await assert.rejects(unlocking,/locked|changed/);
await unlockWallet(password);
const originalNow=Date.now;
try { const now=Date.now();Date.now=()=>now+WALLET_IDLE_MS+1;assert.equal(await getWallet(),undefined); }
finally {Date.now=originalNow;}
const { backup } = await fixture;
const expected = await decryptWallet(backup, password);
installNavigator(true);
failWrites = 1;
const before = commits;
const recovered = await restoreWallet(backup, password);
const recovered = await restoreWallet(backup, password,password,true);
assert.ok(commits > before);
assert.equal(stored?.address, expected.address);
assert.equal((stored as Record<string,unknown>|undefined)?.format,'wikideck-local-vault');
assert.equal(recovered.address, expected.address);
assert.equal((await getWallet()).address, expected.address);
assert.equal((await getWallet())?.address, expected.address);
assert.ok(lockCalls >= 2);
assert.ok(opened.every(name => name === 'wikideck-testnet-wallet-v2'));
permanentFailure = true;
await assert.rejects(restoreWallet(await exportWallet(initial[0], password), password), { name: 'QuotaExceededError' });
assert.equal(stored?.address, expected.address);
const preserved=JSON.stringify(stored);
await assert.rejects(restoreWallet(exported,password,password,true), { name: 'QuotaExceededError' });
assert.equal(JSON.stringify(stored),preserved);
permanentFailure = false;
await assert.rejects(restoreWallet(backup, randomBytes(24).toString('base64')));
assert.equal((await getWallet()).address, expected.address);
await assert.rejects(restoreWallet(backup,password,password),/replacement/);
await assert.rejects(restoreWallet(backup, randomBytes(24).toString('base64'),password,true));
assert.equal((await unlockWallet(password)).address, expected.address);
failWrites = 5;
const attempts = opened.length;
await assert.rejects(restoreWallet(backup, password), { name: 'AbortError' });
assert.equal(opened.length - attempts, 3);
await assert.rejects(restoreWallet(backup, password,password,true), { name: 'AbortError' });
assert.equal(opened.length - attempts, 4); // One read, three write attempts.
failWrites = 0;
assert.equal((await restoreWallet(backup, password)).address, expected.address);
assert.equal((await restoreWallet(backup, password,password,true)).address, expected.address);
// Simulate another tab replacing a vault between our initial read and commit; CAS must reject.
beforeWrite=()=>{stored={...stored,revision:'other-tab-revision'};};
await assert.rejects(restoreWallet(exported,password,password,true),/changed in another tab/);
assert.equal((stored as Record<string,unknown>|undefined)?.revision,'other-tab-revision');
const current=await unlockWallet(password);
stored={...(stored as Record<string,unknown>|undefined),revision:'another-tab-replaced'};
await assert.rejects(sign(current,'cross-tab stale signer'),/changed/);
assert.equal(await getWallet(),undefined);
const expiry=await unlockWallet(password),baseNow=Date.now,openedAt=Date.now();
try{
let time=openedAt;Date.now=()=>time;
// Trusted UI activity may extend idle time, never the four-hour absolute lifetime.
for(let i=0;i<49;i++){time+=WALLET_IDLE_MS-1000;touchWallet();}
await assert.rejects(sign(expiry,'absolute expiry'),/locked/);
}finally{Date.now=baseNow;}
// Seed the old same-origin plaintext shape; explicit migration must preserve its identity.
lockWallet(); stored=expected as unknown as Record<string,unknown>;
assert.equal(await walletStatus(),'legacy');assert.equal(await getWallet(),undefined);
permanentFailure=true;
await assert.rejects(protectWallet(password),{name:'QuotaExceededError'});
assert.equal(stored.privateKey,expected.privateKey); // No destructive migration on failed commit.
permanentFailure=false;
assert.equal((await protectWallet(password)).address,expected.address);
assert.equal('privateKey' in stored,false);
lockWallet();assert.equal((await unlockWallet(password)).address,expected.address);
} finally {
lockWallet();
if (originalIDB) Object.defineProperty(globalThis, 'indexedDB', originalIDB);
else Reflect.deleteProperty(globalThis, 'indexedDB');
if (originalNavigator) Object.defineProperty(globalThis, 'navigator', originalNavigator);