veilidchat/lib/entities/identity.dart

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import 'package:fast_immutable_collections/fast_immutable_collections.dart';
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import 'package:freezed_annotation/freezed_annotation.dart';
import 'package:veilid/veilid.dart';
part 'identity.freezed.dart';
part 'identity.g.dart';
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// AccountOwnerInfo is the key and owner info for the account dht key that is
// stored in the identity key
@freezed
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class AccountRecordInfo with _$AccountRecordInfo {
const factory AccountRecordInfo({
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// Top level account keys and secrets
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required TypedKey key,
required KeyPair owner,
}) = _AccountRecordInfo;
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factory AccountRecordInfo.fromJson(dynamic json) =>
_$AccountRecordInfoFromJson(json as Map<String, dynamic>);
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}
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// Identity Key points to accounts associated with this identity
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// accounts field has a map of bundle id or uuid to account key pairs
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// DHT Schema: DFLT(1)
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// DHT Key (Private): identityRecordKey
// DHT Owner Key: identityPublicKey
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// DHT Secret: identitySecretKey (stored encrypted with unlock code in local table store)
@freezed
class Identity with _$Identity {
const factory Identity({
// Top level account keys and secrets
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required IMap<String, ISet<AccountRecordInfo>> accountRecords,
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}) = _Identity;
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factory Identity.fromJson(dynamic json) =>
_$IdentityFromJson(json as Map<String, dynamic>);
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}
// Identity Master key structure for created account
// Master key allows for regeneration of identity DHT record
// Bidirectional Master<->Identity signature allows for
// chain of identity ownership for account recovery process
//
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// Backed by a DHT key at masterRecordKey, the secret is kept
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// completely offline and only written to upon account recovery
//
// DHT Schema: DFLT(1)
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// DHT Record Key (Public): masterRecordKey
// DHT Owner Key: masterPublicKey
// DHT Owner Secret: masterSecretKey (kept offline)
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// Encryption: None
@freezed
class IdentityMaster with _$IdentityMaster {
const factory IdentityMaster(
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{
// Private DHT record storing identity account mapping
required TypedKey identityRecordKey,
// Public key of identity
required PublicKey identityPublicKey,
// Public DHT record storing this structure for account recovery
required TypedKey masterRecordKey,
// Public key of master identity used to sign identity keys for recovery
required PublicKey masterPublicKey,
// Signature of identityRecordKey and identityPublicKey by masterPublicKey
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required Signature identitySignature,
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// Signature of masterRecordKey and masterPublicKey by identityPublicKey
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required Signature masterSignature}) = _IdentityMaster;
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factory IdentityMaster.fromJson(dynamic json) =>
_$IdentityMasterFromJson(json as Map<String, dynamic>);
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}
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extension IdentityMasterExtension on IdentityMaster {
KeyPair identityWriter(SecretKey secret) {
return KeyPair(key: identityPublicKey, secret: secret);
}
KeyPair masterWriter(SecretKey secret) {
return KeyPair(key: masterPublicKey, secret: secret);
}
}