Tizian 「ティツィアーン」
839d49c4cc
A day's, night's and heart chunk's ID was a UUID of version 5 of the person and the date, which the instance can hash for every date itself: each ID told it which days the band was worn. halkyon_keys' keyedRowId hashes the name under the account's X25519 secret key (BLAKE2b, a UUID of version 8), the same on every device of the account and unreadable without its keys; ContentCipher.rowId and TrainKeys.rowId hand it on. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
55 lines
1.9 KiB
Dart
55 lines
1.9 KiB
Dart
import 'package:halkyon_keys/halkyon_keys.dart';
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import 'package:sodium/sodium_sumo.dart';
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import 'package:test/test.dart';
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Future<void> main() async {
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final sodium = await SodiumSumoInit.init();
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group('row IDs keyed by the account', () {
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final account = AccountKeys.generate(sodium);
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final secrets = (
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encryption: account.encryption.secretKey.extractBytes(),
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signing: account.signing.secretKey.extractBytes(),
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);
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test('every device of the account names a row alike: its keys, unlocked '
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'anew, give the same ID', () {
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final elsewhere = AccountKeys.fromSecretKeys(
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sodium,
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encryptionSecretKey: secrets.encryption,
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signingSecretKey: secrets.signing,
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);
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expect(
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keyedRowId(sodium, elsewhere, 'train/day/2026-10-30'),
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keyedRowId(sodium, account, 'train/day/2026-10-30'),
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);
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});
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test('another name, or the same name of another account, gives another '
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'ID', () {
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final other = AccountKeys.generate(sodium);
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final id = keyedRowId(sodium, account, 'train/day/2026-10-30');
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expect(keyedRowId(sodium, account, 'train/day/2026-10-31'), isNot(id));
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expect(keyedRowId(sodium, account, 'train/night/2026-10-30'), isNot(id));
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expect(keyedRowId(sodium, other, 'train/day/2026-10-30'), isNot(id));
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});
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test("the ID is a UUID of version 8, RFC 9562's for IDs of one's own "
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'making, and not a name hashed in the open (version 5)', () {
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final id = keyedRowId(sodium, account, 'train/day/2026-10-30');
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expect(
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id,
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matches(
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RegExp(
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'^[0-9a-f]{8}-[0-9a-f]{4}-8[0-9a-f]{3}-[89ab][0-9a-f]{3}-'
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r'[0-9a-f]{12}$',
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),
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),
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);
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});
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test('a row without a name has no ID', () {
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expect(() => keyedRowId(sodium, account, ''), throwsArgumentError);
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});
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});
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}
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