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{ Category Archives } iPad

TDD/unit testing video training for iOS developers

I recently recorded a series of videos on unit testing and test-driven development for iOS developers with Scotty of iDeveloper.tv. The videos and associated source code is now available for purchase and download.

On what Marcus said

This post is a response to Why so serious? over at Cocoa is my Girlfriend. Read that. Welcome back. OK, so firstly let’s talk about that damned carousel. Kudos to the developer who wrote a nice smoothly scrolling layer-backed image pager, but as Marcus says, that’s not the same as doing a nice smoothly scrolling […]

A Cupertino Yankee in the Court of King Ballmer

This post summarises my opinions of Windows Phone 7 from the Microsoft Tech Day I went to yesterday. There’s a new version of Windows Phone 7 (codenamed Mango) due out in the Autumn, but at the Tech Day the descriptions of the new features were mainly the sorts of things you see in the Microsoft […]

On the top 5 iOS appsec issues

Nearly 13 months ago, the Intrepidus Group published their top 5 iPhone application development security issues. Two of them are valid issues, the other three they should perhaps have thought longer over. The good Sensitive data unprotected at rest Secure communications to servers Yes, indeed, if you’re storing data on a losable device then you […]

On platform-specific strategies

I’m writing some library code at the moment that needs to work on both Mac OS X and iOS. The APIs I need to use on each platform are different, so I need different code on each platform. I also happen to think that putting both versions of the code in the same implementation file […]

Storing and testing credentials: Cocoa Touch Edition

This article introduces the concept of key stretching, using code examples to explain the ideas. For code you can use in an app that more closely resembles current practice, see Password checking with CommonCrypto. There’s been quite the media circus regarding the possibility that Sony was storing authentication credentials for its PlayStation Network credentials in […]

What happens when you jailbreak an iPad

Having played around with an iPad running a jailbreak OS yesterday, I thought it would be useful to explain one possible attack that doesn’t seem to get much coverage. As I’ve discussed in numerous talks, the data protection feature of iOS (introduced in iOS 4, enabled by setting the NSFileProtectionComplete option on a file or […]

On NSInvocation

I was going to get down to doing some writing, but then I got some new kit I needed to set up, so that isn’t going to happen. Besides which, I was talking to one developer about NSInvocation and writing to another about NSInvocation, then another asked about NSInvocation. So now seems like a good […]

On Fuzzy Aliens

I have just launched a new company, Fuzzy Aliens[*], offering application security consultancy services for smartphone app developers. This is not the FAQ list, this is the “questions I want to answer so that they don’t become frequently asked” list. What do you offer? The company’s services are all focussed on helping smartphone and tablet […]

An example of unit testing working for me

Some specific feedback I was given regarding my unit testing talk at VTM: iPhone fall conference was that the talk was short on real-world application of unit testing. That statement is definitely true, and it’s unfortunate that I didn’t meet the attendee’s expectations for the talk. I hope to address that deficiency here, by showing […]