blockchain-kit-sdk/com.cramium.blockchain.kit.storage.backup

Package-level declarations

Types

@Serializable

Algorithm identifiers for multi-algorithm support. Public for use in progress tracking (MpcProtocolState.algorithmId).

class BackupDecryptionException(message: String = "Failed to decrypt backup - incorrect PIN or password", cause: Throwable? = null) : Exception

Exception thrown when backup decryption fails (wrong PIN/password).

BackupException

class BackupException(message: String, cause: Throwable? = null) : Exception

Exception thrown when backup operations fail.

BackupInfo

@Serializable

data class BackupInfo(val bundleId: String, val formatVersion: Int, val createdAt: Long, val updatedAt: Long, val wrappers: List<WrapperInfo>, val algorithms: List<String>)

Information about an existing backup. Flutter-facing DTO - exposed via code generation.

BackupIntegrityException

class BackupIntegrityException(message: String = "Backup integrity check failed") : Exception

Exception thrown when backup integrity check fails (tampered checksum or data).

BackupNotFoundException

class BackupNotFoundException(message: String = "No backup found") : Exception

Exception thrown when no backup exists.

BackupOptions

@Serializable

data class BackupOptions(val wrappers: List<WrapperConfig>, val storageLocations: List<StorageLocation> = listOf(StorageLocation.CLOUD))

Options for creating a backup - specifies which wrappers to use. Exposed to Flutter via @FlutterMethod.

BackupResult

@Serializable

data class BackupResult(val bundleId: String, val seq: Int, val wrapperCount: Int)

Result of creating or updating a backup.

BackupServiceModule

class BackupServiceModule

Flutter submodule for backup and restore operations.

BackupServiceModuleAndroid

class BackupServiceModuleAndroid(binaryMessenger: BinaryMessenger, parentModule: BlockchainKitSdkAndroid) : MethodChannel, MethodChannel.MethodCallHandler

ExportableBackupProvider

interface ExportableBackupProvider : WalletBackupProvider

Interface for backup providers that support file import/export.

FlutterUnlockStrategy

@Serializable

data class FlutterUnlockStrategy(val type: String, val credentialId: String? = null, val recoveryId: String? = null, val kekId: String? = null, val pin: String? = null, val password: String? = null)

Flutter-facing unlock strategy. This is what Flutter sends - we convert to internal UnlockStrategy.

FlutterWrapperConfig

@Serializable

data class FlutterWrapperConfig(val type: String, val credentialId: String? = null, val pin: String? = null, val password: String? = null)

Flutter-facing wrapper configuration. This is what Flutter sends - we convert to internal WrapperConfig.

JwkPublicKey

@Serializable

data class JwkPublicKey(val kty: String = "EC", val crv: String = "P-256", val alg: String = "ES256", val x: String, val y: String)

JWK (JSON Web Key) format for EC public keys.

PasskeyCredentialInfo

@Serializable

data class PasskeyCredentialInfo(val id: String, val type: String = "public-key", val userHandle: String? = null, val publicKey: JwkPublicKey? = null, val signCount: Int = 0, val transports: List<String>? = null, val createdAt: String? = null, val lastUsedAt: String? = null)

Standard passkey credential information for backup metadata.

StorageLocation

@Serializable

enum StorageLocation : Enum<StorageLocation>

Where to store the backup.

SystemBackupStatus