How to implement Encrypted Core Data in Existing project with Swift 5.3.2

[ArulkumarMS]

I have a project built with Xcode 12.2, Swift 5.3.2, and Core Data. Now I need to secure my core data with this library. I have already done lightweight migration for the project. How do I configure an existing project with this library? Please help me out. Implementation as follows, I’m always getting crash on container.loadPersistentStores with EXEC_BAD_ACCESS lazy var persistentContainer: NSPersistentContainer = { / The persistent container for the application. This implementation creates and returns a container, having loaded the store for the application to it. This property is optional since there are legitimate error conditions that could cause the creation of the store to fail. / let url = self.applicationDocumentsDirectory.appendingPathComponent(“MyTask.sqlite") let container = NSPersistentContainer(name: “MyTask”) do { let options = [ EncryptedStorePassphraseKey : “xxxxxxxxxxx”, EncryptedStore.optionFileManager()! : EncryptedStoreFileManager.default()! ] as [String : Any] let description = try EncryptedStore.makeDescription(options: options, configuration: nil)

        // Create Persistent Store Description
        let persistentStoreDescription = NSPersistentStoreDescription(url: url)
        // Configure Persistent Store Description
        persistentStoreDescription.type = EncryptedStoreType
        //persistentStoreDescription.setOption(NSString("xxxxxxxxxxx"), forKey: NSPersistentStoreFileProtectionKey)
        persistentStoreDescription.shouldMigrateStoreAutomatically = true
        persistentStoreDescription.shouldInferMappingModelAutomatically = true
        container.persistentStoreDescriptions = [persistentStoreDescription]
    }
    catch {
        NSLog("Could not initialize encrypted database storage: " + error.localizedDescription)
    }
    container.loadPersistentStores(completionHandler: { (storeDescription, error) in
        if let error = error as NSError? {
            // Replace this implementation with code to handle the error appropriately.
            // fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.

            /*
             Typical reasons for an error here include:
             * The parent directory does not exist, cannot be created, or disallows writing.
             * The persistent store is not accessible, due to permissions or data protection when the device is locked.
             * The device is out of space.
             * The store could not be migrated to the current model version.
             Check the error message to determine what the actual problem was.
             */
            fatalError("Unresolved error \(error), \(error.userInfo)")
        }
    })
    return container
}()

[hamada147]

I don't know if this would solve the issue for you but here it is

lazy var persistentContainer: NSPersistentContainer = {
        /*
         The persistent container for the application. This implementation
         creates and returns a container, having loaded the store for the
         application to it. This property is optional since there are legitimate
         error conditions that could cause the creation of the store to fail.
         */
        let container = NSPersistentContainer(name: "APP_NAME_HERE")
        do {
            let configuration = EncryptedStoreFileManagerConfiguration(options: [EncryptedStoreFileManagerConfiguration.optionBundle(): Bundle.main])
            let fileManager = EncryptedStoreFileManager(configuration: configuration)!
            let options: [String: Any] = [
                EncryptedStore.optionFileManager(): fileManager,
                EncryptedStorePassphraseKey: "123"
            ]
            container.persistentStoreDescriptions = [
                try EncryptedStore.makeDescription(options: options, configuration: "local")
            ]
        } catch {
            print("Core data not encrypted")
        }
        container.loadPersistentStores(completionHandler: { (storeDescription, error) in
            if let error = error as NSError? {
                // Replace this implementation with code to handle the error appropriately.
                // fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.

                /*
                 Typical reasons for an error here include:
                 * The parent directory does not exist, cannot be created, or disallows writing.
                 * The persistent store is not accessible, due to permissions or data protection when the device is locked.
                 * The device is out of space.
                 * The store could not be migrated to the current model version.
                 Check the error message to determine what the actual problem was.
                 */
                fatalError("Unresolved error \(error), \(error.userInfo), desc \(storeDescription)")
            }
        })
        return container
    }()

Another implementation

lazy var persistentContainer: NSPersistentContainer = {
        /*
         The persistent container for the application. This implementation
         creates and returns a container, having loaded the store for the
         application to it. This property is optional since there are legitimate
         error conditions that could cause the creation of the store to fail.
         */
        let container = NSPersistentContainer(name: "YallaSuperApp")
        do {
            let options: [AnyHashable: Any] = [
                NSPersistentStoreFileProtectionKey: FileProtectionType.complete,
                EncryptedStorePassphraseKey: "123456"
            ]
            let store = try container.persistentStoreCoordinator.addPersistentStore(ofType: EncryptedStoreType, configurationName: nil, at: container.persistentStoreDescriptions[0].url, options: options)
        } catch {
            print("Core data not encrypted \(error.localizedDescription)")
        }
    return container
}()