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POEncrypted storage on an Android/iPad
 

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    <p>I want to create an application for the Android tablets and/or iPad that's going to hold a lot of sensitive data that needs to be encrypted.</p> <p>I'm thinking about two possible ways of dealing with that problem:</p> <ol> <li>Implement (or use an implementation) of some well known encryption algorithm, but that leaves a problem of passing private key as it probably be best if user has to enter 1024 bytes key from the on-screen keyboard on each start of the application</li> <li>Using a hardware encryption device (smart card, etoken etc.) - that's probably one of the most secure ways of doing that but here the problem is how can you insert the hardware device to a tablet. I assume you can probably find few Android devices that will have USB port but does anyone know how are those kind of devices supported on Android? I think it makes little sense of thinking about that kind of solution on an iPad since there's no USB on it. Another downsize of this whole approach is it makes a life a bit more complicates as you need to carry cryptographic device with you all the time.</li> </ol> <p>I should probably add that for this application we don't need to have it working on every possible device - we could limit to one device (Android or iPad) as we are providing both hardware and software. Same goes for external cryptographic devices.</p> <p>Security is the primary concern for the customer and I'd like to know if anyone have dealt with similar situations and what solutions have you used?</p>
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