Training: Defensive Programming in iOS
Software Developer
12 uur
Engels (US)

Training: Defensive Programming in iOS

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Productinformatie

In deze iOS training/cursus doet u de kennis en vaardigheden op om veilige betrouwbare code te schijven die gebruikt wordt om iOS applicaties te ontwikkelen. Zo leert u bijvoorbeeld meer over de beschikbare invoerapplicaties, testing, error handling, uitzonderingen, netwerk interactie en hoe u data in iOS Apps kunt beveiligen.

Onderwerpen die onder andere aan bod komen zijn Objective-C, Swift, UIWebView, TCP, CF functions, NSURLConnection, XCTestCase, MD5, SHA, RNCryptor bibliotheek en nog veel meer.

Inhoud van de training

Defensive Programming in iOS

12 uur

Thinking Defensively about Functions, Methods, and Input

  • start the course
  • create code that handles file inputs to an iOS app
  • create code that handles url scheme inputs to an iOS app
  • validate user-provided input using Objective-C
  • use a real-time approach to validating user-provided input in Objective-C
  • use secure coding principles to guard against format string attacks
  • restrict free navigation around the Web based on user input in a UIWebView
  • use best practices to name functions and methods in Objective-C
  • use best practices to name accessor methods in Objective-C
  • use best practices to name delegate methods in Objective-C
  • reduce method complexity in iOS apps using Objective-C
  • overload a function to reduce code complexity in Swift
  • design functions that have a single and defined focus
  • identify and use different class naming standards in Objective-C
  • create and use constants in Objective-C
  • create and use constants in Swift
  • create and use resource files in an iOS app
  • easily store and retrieve data from the defaults database
  • recognize how using brackets can protect against potential bugs
  • design while loops that are not vulnerable to running forever
  • design for loops that are not vulnerable to running forever
  • identify and avoid bugs caused by altered loop variables
  • handle various types of inputs to an iOS app

Managing Network Interaction

  • start the course
  • create a TCP client connection from an iOS app
  • send and receive data over a TCP connection in an iOS app
  • determine when an iOS app can and cannot access the Internet
  • determine when an iOS app can and cannot reach a specific IP address
  • determine when an iOS app can and cannot access the Internet
  • install and configure the network link conditioner to be able to test iOS apps in different connection conditions
  • use CF functions to encode URLs
  • use CF functions to decode URLs
  • use NSURLConnection to make synchronous and asynchronous network calls
  • use NSURLConnection to make asynchronous network calls without using custom delegates
  • create and apply a configuration object to an NSURLSession instance
  • request a URL in a simple manner using NSURLSession and system delegates
  • request a URL in a flexible manner using NSURLSession and custom delegates
  • stop script execution in any HTML loaded into a WebView
  • disallow Internet traffic over cellular connections in an iOS app
  • capture and handle redirect responses from a server
  • use NSURLSession to reliably download and save files in an iOS app
  • use NSURLSession to handle users stopping and starting download operations
  • use NSURLSession to handle downloads that fail
  • use NSURLSession to upload files to a web server
  • use common techniques for managing network interaction

Errors, Exceptions, and Testing

  • start the course
  • use error information returned indirectly from methods
  • test for specific kinds of errors based on domains and codes
  • create and return error objects from custom methods
  • use alert views to inform end users of error information
  • use an underlying error object to find out more detail about an error that has occurred
  • create and throw/raise exceptions in iOS apps
  • catch and handle exceptions in iOS apps
  • use the @finally directive to guarantee code execution
  • convert a raised exception to an error when appropriate
  • capture and handle specific types of exceptions locally
  • create an XCTestCase Class using Xcode and Objective-C
  • create an XCTestCase Class using Xcode and Swift
  • create, execute, and check results of unit tests using Xcode and Objective-C
  • creating and executing unit tests in Swift
  • unit test private methods in custom classes
  • how to create tests that measure execution time of code
  • create and execute asynchronous tests
  • recognize how to initiate the creation of an automated test of an iOS app
  • access interface elements by navigating the element hierarchy
  • use accessibility labels to interact with iOS app elements when automation testing
  • select and tap interface elements in automation testing
  • define pass and fail benchmarks for automation testing
  • use the logElementTree method to understand an app's view hierarchy
  • import previously created automation scripts for reuse
  • create assertions using NSAssert
  • create assertions using the assert function
  • create assertions in Swift
  • work with creating and managing errors and exceptions

Protecting Data in iOS Apps

  • start the course
  • obscure sensitive data from plain sight in an iOS app interface
  • use alert view styles to collect sensitive user data
  • obscure sensitive data when using alert controllers
  • use Touch ID authentication in iOS apps on supported devices
  • recognize how to write text data to files while reducing the risk of data corruption
  • recognize how to write binary data to files while reducing the risk of data corruption
  • use built-in hardware encryption to store text files securely on disk
  • use built-in hardware encryption to store binary files securely on disk
  • register for notifications and delegate methods that indicate when protected files change status
  • create and access protected files while an iOS device is in the background
  • securely store sensitive data using the iOS keychain
  • search and retrieve sensitive data from the iOS keychain
  • update sensitive data stored in the iOS keychain
  • remove sensitive data stored in the iOS keychain
  • define when keychain items are accessible depending on the lock status of an iOS device
  • use the Randomization Services API to generate random numbers
  • create an MD5 hash using the Common Crypto library
  • create an SHA hash using the Common Crypto library
  • use the RNCryptor library to encrypt and decrypt data in an iOS app
  • use the Certificate, Key, and Trust functions to generate an asymmetric key pair
  • use the public key of an asymmetric key pair to encrypt data
  • use the private key of an asymmetric key pair to decrypt data
  • create and manage iOS keychain items

Kenmerken

Docent inbegrepen
Bereidt voor op officieel examen
Engels (US)
12 uur
Software Developer
90 dagen online toegang
HBO

Meer informatie

Doelgroep Softwareontwikkelaar
Voorkennis

U bent bekend met het programmeren van iOS applicaties.

Resultaat

Na het volgen van deze training bent u bekend met defensief programmeren voor iOS applicaties.

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