Tizian 「ティツィアーン」
aea0c447fc
A key proof was a signature by the account's signing key, which every signed-in device keeps in its keyring: whoever could read one, with a code from its authenticator, set a new password without the password or the phrase (the second reading's H1). The phrase now proves itself with an Ed25519 key derived from its bits alone (halkyon_keys' recoveryProofKeysOf, KDF context hlkrprf1, a sibling of the recovery key), whose public half every setup, new phrase and account reset sends and the register keeps (account_password.recoveryProofKey); the device derives the secret half only while the phrase is typed. An account without one (none exist outside development) proves no phrase until it sets a new one; decoys check against a decoy proof key alike. Migration (module, Learn's and Todo's servers, Learn's device schema): ALTER TABLE "account_password" ADD COLUMN "recoveryProofKey" bytea; nullable, so rows made before keep working and no data is touched. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
27 lines
1.2 KiB
Dart
27 lines
1.2 KiB
Dart
/// An account's keys on the device (ADR 0017): what the password unlocks
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/// (Argon2id, split into SRP's x and the key-encryption key), the account's
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/// key pairs and their wrapping, the recovery phrase and its key, data keys
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/// sealed to the account, and content sealed and signed in ADR 0002's
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/// envelope. libsodium (the `sodium` package, its sumo API for Argon2id)
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/// does every primitive; nothing here is ever sent but what is wrapped,
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/// sealed or public.
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library;
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export 'src/account_keys.dart'
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show AccountKeys, WrappedAccountKeys, unwrapAccountKeys, wrapAccountKeys;
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export 'src/data_keys.dart' show DataKey, openDataKey, sealDataKey;
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export 'src/key_refused.dart';
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export 'src/password_keys.dart'
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show PasswordKdf, PasswordKeys, derivePasswordKeys, newPasswordSalt;
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export 'src/password_text.dart'
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show PasswordRefusal, PasswordRefused, normalizePassword;
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export 'src/recovery_phrase.dart'
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show
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entropyOfRecoveryPhrase,
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newRecoveryPhrase,
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recoveryEntropyBytes,
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recoveryKeyOf,
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recoveryPhraseOf,
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recoveryProofKeysOf,
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recoveryProofPublicKeyOf;
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export 'src/sealed_content.dart' show SealedContent, openContent, sealContent;
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