build: declare @quantus/crypto as a ui-keyring dev dependency

The ML-DSA restore spec imports contextForSpec from it, and polkadot-dev's
build refuses a package whose sources import something undeclared.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012uDUodEcRbBwNRi3UCmw8f

.yarnrc.yml

@@ -13,3 +13,11 @@ logFilters:
 nodeLinker: node-modules
 
 yarnPath: .yarn/releases/yarn-4.5.1.cjs
+
+# @quantus packages come from the Gitea registry — safe as a whole-scope route
+# because we own every name in it. The forked @polkadot packages cannot be routed
+# the same way (most of that scope is unforked and lives on npm), so they are
+# pinned to tarball URLs in package.json resolutions instead.
+npmScopes:
+  quantus:
+    npmRegistryServer: "https://git.lair.cafe/api/packages/quantus/npm/"

package.json

@@ -42,6 +42,9 @@
     "react-native": "^0.73.1"
   },
   "resolutions": {
+    "@polkadot/keyring": "https://git.lair.cafe/api/packages/quantus/npm/%40polkadot%2Fkeyring/-/14.0.3-quantus.3/keyring-14.0.3-quantus.3.tgz",
+    "@polkadot/networks": "https://git.lair.cafe/api/packages/quantus/npm/%40polkadot%2Fnetworks/-/14.0.3-quantus.3/networks-14.0.3-quantus.3.tgz",
+    "@polkadot/util-crypto": "https://git.lair.cafe/api/packages/quantus/npm/%40polkadot%2Futil-crypto/-/14.0.3-quantus.3/util-crypto-14.0.3-quantus.3.tgz",
     "typescript": "5.5.4"
   }
 }

packages/ui-keyring/package.json

@@ -17,19 +17,20 @@
     "./packageDetect.cjs"
   ],
   "type": "module",
-  "version": "3.16.7",
+  "version": "3.16.7-quantus.3",
   "main": "index.js",
   "dependencies": {
-    "@polkadot/keyring": "^14.0.3",
+    "@polkadot/keyring": "14.0.3-quantus.3",
     "@polkadot/ui-settings": "3.16.7",
     "@polkadot/util": "^14.0.3",
-    "@polkadot/util-crypto": "^14.0.3",
+    "@polkadot/util-crypto": "14.0.3-quantus.3",
     "mkdirp": "^3.0.1",
     "rxjs": "^7.8.1",
     "store": "^2.0.12",
     "tslib": "^2.8.1"
   },
   "devDependencies": {
+    "@quantus/crypto": "^0.3.0",
     "@types/mkdirp": "^2.0.0",
     "@types/store": "^2.0.5"
   },

packages/ui-keyring/src/Base.ts

@@ -125,8 +125,9 @@ export class Base {
       this.setDevMode(options.isDevelopment);
     }
 
-    // set Ethereum state
-    this.#isEthereum = keyring.type === 'ethereum';
+    // Never Ethereum: the keyring holds only ML-DSA keys (quantus/common#6). Kept
+    // as a property so callers written against upstream still read a boolean.
+    this.#isEthereum = false;
 
     this.#keyring = keyring;
     this._genesisHash = options.genesisHash && (

packages/ui-keyring/src/Keyring.dilithium.spec.ts

@@ -0,0 +1,94 @@
+// Copyright 2017-2026 @polkadot/ui-keyring authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+/// <reference types="@polkadot/dev-test/globals.d.ts" />
+
+import type { KeyringPair$Json } from '@polkadot/keyring/types';
+
+import { contextForSpec } from '@quantus/crypto';
+
+import { Keyring as BaseKeyring } from '@polkadot/keyring';
+import { dilithiumVerify } from '@polkadot/util-crypto';
+
+import { Keyring } from './Keyring.js';
+
+// crystal_alice, from the chain's dev genesis — a raw 32-byte seed straight into
+// ML-DSA-87 keygen. The address is what `quantus developer create-test-wallets`
+// prints, i.e. an independent implementation.
+const ALICE = 'qzk1Nxai3dZD9Cn5kwGcgL6mKxsfxwqdis7kDQJ52aJS2vSn7';
+const PASSWORD = 'not a good password';
+const MESSAGE = new Uint8Array([0x75, 0x69]);
+
+function backup (): KeyringPair$Json {
+  const base = new BaseKeyring({ ss58Format: 189, type: 'dilithium87' });
+
+  return base
+    .addFromSeed(new Uint8Array(32), { name: 'crystal_alice' }, 'dilithium87')
+    .toJson(PASSWORD);
+}
+
+// `loadAll` initialises `@polkadot/ui-settings`, which is a module singleton, so
+// it may be called once per *process* — not per instance. One keyring for the
+// whole file, loaded once.
+const uiKeyring = new Keyring();
+
+uiKeyring.loadAll({ ss58Format: 189, store: undefined, type: 'dilithium87' });
+
+describe('ui-keyring restoreAccount', (): void => {
+  // Before the fix this constructed a pair whose "public key" was
+  // decodeAddress(json.address) — i.e. a Poseidon2 hash of the public key, passed
+  // off as the key itself. It did not throw; it produced a pair that was simply
+  // wrong.
+  it('restores an ML-DSA account to the right address', (): void => {
+    const pair = uiKeyring.restoreAccount(backup(), PASSWORD);
+
+    expect(pair.address).toEqual(ALICE);
+    expect(pair.publicKey.length).toEqual(2592);
+    expect(pair.addressRaw.length).toEqual(32);
+  });
+
+  it('restores an account that can sign for its own address', (): void => {
+    const pair = uiKeyring.restoreAccount(backup(), PASSWORD);
+
+    pair.decodePkcs8(PASSWORD);
+
+    const context = contextForSpec(148);
+    const signature = pair.sign(MESSAGE, { context });
+
+    expect(dilithiumVerify(MESSAGE, signature, pair.addressRaw, 'dilithium87', context)).toEqual(true);
+  });
+
+  it('fails on a wrong password without half-restoring', (): void => {
+    expect(() => uiKeyring.restoreAccount(backup(), 'wrong')).toThrow();
+  });
+
+  // The address field sits outside the encrypted blob. For the curve schemes a
+  // tampered one cannot decode at all; here it decodes cleanly and would yield an
+  // account displaying an address its key does not control.
+  it('rejects JSON whose address does not match its key', (): void => {
+    const base = new BaseKeyring({ ss58Format: 189, type: 'dilithium87' });
+    const other = base.addFromSeed(new Uint8Array(32).fill(3), {}, 'dilithium87');
+
+    expect(() => uiKeyring.restoreAccount({ ...backup(), address: other.address }, PASSWORD)).toThrow(/does not match the address/);
+  });
+
+  // quantus/common#6: a backup of a quantum-unsafe key is refused with the
+  // reason, not decoded. This is the JSON a polkadot{.js} export of an ed25519
+  // account carries.
+  it('refuses a polkadot{.js} backup of a quantum-unsafe key, saying why', (): void => {
+    const json = {
+      address: '5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY',
+      encoded: '0x00',
+      encoding: { content: ['pkcs8', 'sr25519'], type: ['scrypt', 'xsalsa20-poly1305'], version: '3' },
+      meta: { name: 'polkadot account' }
+    } as unknown as KeyringPair$Json;
+
+    expect(() => uiKeyring.restoreAccount(json, PASSWORD)).toThrow(/sr25519 keys are not quantum-safe and cannot be held here/);
+  });
+
+  it('refuses a file that does not record its key type', (): void => {
+    const json = { ...backup(), encoding: { content: 'pkcs8', type: 'none', version: '0' } } as unknown as KeyringPair$Json;
+
+    expect(() => uiKeyring.restoreAccount(json, PASSWORD)).toThrow(/does not record its key type/);
+  });
+});

packages/ui-keyring/src/Keyring.ts

@@ -8,10 +8,9 @@ import type { KeypairType } from '@polkadot/util-crypto/types';
 import type { AddressSubject, SingleAddress } from './observable/types.js';
 import type { CreateResult, KeyringAddress, KeyringAddressType, KeyringItemType, KeyringJson, KeyringJson$Meta, KeyringOptions, KeyringPairs$Json, KeyringStruct } from './types.js';
 
-import { createPair } from '@polkadot/keyring';
 import { chains } from '@polkadot/ui-settings';
 import { bnToBn, hexToU8a, isFunction, isHex, isString, objectSpread, stringify, stringToU8a, u8aSorted, u8aToString } from '@polkadot/util';
-import { base64Decode, createKeyMulti, jsonDecrypt, jsonEncrypt } from '@polkadot/util-crypto';
+import { createKeyMulti, jsonDecrypt, jsonEncrypt } from '@polkadot/util-crypto';
 
 import { env } from './observable/env.js';
 import { KeyringOption } from './options/index.js';
@@ -21,7 +20,7 @@ import { accountKey, accountRegex, addressKey, addressRegex, contractKey, contra
 const RECENT_EXPIRY = 24 * 60 * 60;
 
 // No accounts (or test accounts) should be loaded until after the chain determination.
-// Chain determination occurs outside of Keyring. Loading `keyring.loadAll({ type: 'ed25519' | 'sr25519' })` is triggered
+// Chain determination occurs outside of Keyring. Loading `keyring.loadAll({ type: 'dilithium65' | 'dilithium87' })` is triggered
 // from the API after the chain is received
 export class Keyring extends Base implements KeyringStruct {
   public readonly keyringOption = new KeyringOption();
@@ -327,15 +326,18 @@ export class Keyring extends Base implements KeyringStruct {
   }
 
   public restoreAccount (json: KeyringPair$Json, password: string): KeyringPair {
-    const cryptoType = Array.isArray(json.encoding.content) ? json.encoding.content[1] : 'ed25519';
-    const encType = Array.isArray(json.encoding.type) ? json.encoding.type : [json.encoding.type];
-    const pair = createPair(
-      { toSS58: this.encodeAddress, type: cryptoType as KeypairType },
-      { publicKey: this.decodeAddress(json.address, true) },
-      json.meta,
-      isHex(json.encoded) ? hexToU8a(json.encoded) : base64Decode(json.encoded),
-      encType
-    );
+    // Version-0 JSON predates recording the key type, so it cannot be an ML-DSA
+    // account. Upstream guessed ed25519; this keyring cannot hold one.
+    if (!Array.isArray(json.encoding.content)) {
+      throw new Error('This account file does not record its key type, so it is not an ML-DSA account and cannot be restored here');
+    }
+
+    // Through the keyring rather than createPair directly, so a restore gets the
+    // same refusal as every other entry point: a polkadot{.js} backup of an
+    // sr25519 or ed25519 account is told it is not quantum-safe, not decoded.
+    // createFromJson also carries the address as an account id until the real
+    // public key is decrypted, and checks the two agree when it is.
+    const pair = this.keyring.createFromJson(json, true);
 
     // unlock, save account and then lock (locking cleans secretKey, so needs to be last)
     pair.decodePkcs8(password);

packages/ui-keyring/src/packageInfo.ts

@@ -3,4 +3,4 @@
 
 // Do not edit, auto-generated by @polkadot/dev
 
-export const packageInfo = { name: '@polkadot/ui-keyring', path: 'auto', type: 'auto', version: '3.16.7' };
+export const packageInfo = { name: '@polkadot/ui-keyring', path: 'auto', type: 'auto', version: '3.16.7-quantus.3' };

yarn.lock

@@ -1596,28 +1596,29 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@polkadot/keyring@npm:^14.0.3":
-  version: 14.0.3
-  resolution: "@polkadot/keyring@npm:14.0.3"
+"@polkadot/keyring@https://git.lair.cafe/api/packages/quantus/npm/%40polkadot%2Fkeyring/-/14.0.3-quantus.3/keyring-14.0.3-quantus.3.tgz":
+  version: 14.0.3-quantus.3
+  resolution: "@polkadot/keyring@https://git.lair.cafe/api/packages/quantus/npm/%40polkadot%2Fkeyring/-/14.0.3-quantus.3/keyring-14.0.3-quantus.3.tgz"
   dependencies:
     "@polkadot/util": "npm:14.0.3"
-    "@polkadot/util-crypto": "npm:14.0.3"
+    "@polkadot/util-crypto": "npm:14.0.3-quantus.3"
+    "@quantus/crypto": "npm:^0.3.0"
     tslib: "npm:^2.8.0"
   peerDependencies:
     "@polkadot/util": 14.0.3
     "@polkadot/util-crypto": 14.0.3
-  checksum: 10/69f9f776363f8327d72b43794262ae709fc2824182637e499ed6e9ca94315645d78005bf1f25bdfb7305e5d79879cb932c114e6612467ddf21a760117834e8a2
+  checksum: 10/2264245c4fc2505c852d5a874bda2fcd86a1269cb6545f7bb578a6efdf58beea3deccf28d27ba6e41f9fdf9a8ea50cf230c626b69afe775a7629e069149164f7
   languageName: node
   linkType: hard
 
-"@polkadot/networks@npm:14.0.3, @polkadot/networks@npm:^14.0.3":
-  version: 14.0.3
-  resolution: "@polkadot/networks@npm:14.0.3"
+"@polkadot/networks@https://git.lair.cafe/api/packages/quantus/npm/%40polkadot%2Fnetworks/-/14.0.3-quantus.3/networks-14.0.3-quantus.3.tgz":
+  version: 14.0.3-quantus.3
+  resolution: "@polkadot/networks@https://git.lair.cafe/api/packages/quantus/npm/%40polkadot%2Fnetworks/-/14.0.3-quantus.3/networks-14.0.3-quantus.3.tgz"
   dependencies:
     "@polkadot/util": "npm:14.0.3"
     "@substrate/ss58-registry": "npm:^1.51.0"
     tslib: "npm:^2.8.0"
-  checksum: 10/eb006f537f103b0d417e52966d0098b528326d1ebbae84e4c7834627bb3e863b7b849856992aa58c4a0aeb0ed1e1838a9619aeba7610d0e7c75e99ffcc6c9ecd
+  checksum: 10/04228325c8472901fc04e5570e6d3450539c4ee51bbbae5c6eea945c721dc86b4bd9a581503e9f65c0132317ecc3c915b7f2c4cc2774b169f49d6eb2524bd8c2
   languageName: node
   linkType: hard
 
@@ -1691,10 +1692,11 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@polkadot/ui-keyring@workspace:packages/ui-keyring"
   dependencies:
-    "@polkadot/keyring": "npm:^14.0.3"
+    "@polkadot/keyring": "npm:14.0.3-quantus.3"
     "@polkadot/ui-settings": "npm:3.16.7"
     "@polkadot/util": "npm:^14.0.3"
-    "@polkadot/util-crypto": "npm:^14.0.3"
+    "@polkadot/util-crypto": "npm:14.0.3-quantus.3"
+    "@quantus/crypto": "npm:^0.3.0"
     "@types/mkdirp": "npm:^2.0.0"
     "@types/store": "npm:^2.0.5"
     mkdirp: "npm:^3.0.1"
@@ -1740,24 +1742,25 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@polkadot/util-crypto@npm:14.0.3, @polkadot/util-crypto@npm:^14.0.3":
-  version: 14.0.3
-  resolution: "@polkadot/util-crypto@npm:14.0.3"
+"@polkadot/util-crypto@https://git.lair.cafe/api/packages/quantus/npm/%40polkadot%2Futil-crypto/-/14.0.3-quantus.3/util-crypto-14.0.3-quantus.3.tgz":
+  version: 14.0.3-quantus.3
+  resolution: "@polkadot/util-crypto@https://git.lair.cafe/api/packages/quantus/npm/%40polkadot%2Futil-crypto/-/14.0.3-quantus.3/util-crypto-14.0.3-quantus.3.tgz"
   dependencies:
     "@noble/curves": "npm:^1.3.0"
     "@noble/hashes": "npm:^1.3.3"
-    "@polkadot/networks": "npm:14.0.3"
+    "@polkadot/networks": "npm:14.0.3-quantus.3"
     "@polkadot/util": "npm:14.0.3"
     "@polkadot/wasm-crypto": "npm:^7.5.3"
     "@polkadot/wasm-util": "npm:^7.5.3"
     "@polkadot/x-bigint": "npm:14.0.3"
     "@polkadot/x-randomvalues": "npm:14.0.3"
+    "@quantus/crypto": "npm:^0.3.0"
     "@scure/base": "npm:^1.1.7"
     "@scure/sr25519": "npm:^0.2.0"
     tslib: "npm:^2.8.0"
   peerDependencies:
     "@polkadot/util": 14.0.3
-  checksum: 10/e8f2da806cb81d3c014415bdd633f0fc5871132ce790ca892f65899010386d64fa25f7c047574cc96402afa03b5ff77e4dff904e69b90e714a7150e18ef0f507
+  checksum: 10/ffbbb1a45a45abf51376276674e223b1adbbb9355b8881811c558d428ca84e6d07370d11ff07329cf5c32032b4c710a955b84c02462b6c4f0dc52b5f1117e17e
   languageName: node
   linkType: hard
 
@@ -1936,6 +1939,16 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@quantus/crypto@npm:^0.3.0":
+  version: 0.3.0
+  resolution: "@quantus/crypto@npm:0.3.0::__archiveUrl=https%3A%2F%2Fgit.lair.cafe%2Fapi%2Fpackages%2Fquantus%2Fnpm%2F%2540quantus%252Fcrypto%2F-%2F0.3.0%2Fcrypto-0.3.0.tgz"
+  dependencies:
+    fflate: "npm:^0.8.2"
+    tslib: "npm:^2.7.0"
+  checksum: 10/fa40dbe5206d1ff28038c35825f65f113e4ccf503b3e0126c1d67c7645081c3855b972dfd7e6d76a142b73b1dbfc8947a22354d587b09515f0acf065d6507f13
+  languageName: node
+  linkType: hard
+
 "@react-native-community/cli-clean@npm:12.3.0":
   version: 12.3.0
   resolution: "@react-native-community/cli-clean@npm:12.3.0"
@@ -6436,6 +6449,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"fflate@npm:^0.8.2":
+  version: 0.8.3
+  resolution: "fflate@npm:0.8.3"
+  checksum: 10/6ebf528dc9c56e78e715eac615b009b25dc33e15c1920b11ebba44e6d76181c647756a81a23e19247907496b93aa99928514c53090579a65109e026ac2824aa7
+  languageName: node
+  linkType: hard
+
 "figures@npm:^3.0.0":
   version: 3.2.0
   resolution: "figures@npm:3.2.0"