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Title: where exactly are files stored on an Android device? Post by: kenshirothefist on September 17, 2016, 10:39:05 AM Hi,
First of all, I don't have any issues like lost coins, etc, I'm just looking for some detailed information: 1. Where exactly are private keys and other application files stored (Android 4.3)? There is no /data/data/de.schildbach.wallet/ folder on the device (looked for ../data in device storage and sd card). 2. When this app is uninstalled from a device, does it make complete cleanup, deletes all private keys, etc? Thanks for answers. Title: Re: where exactly are files stored on an Android device? Post by: sugarfly on October 15, 2016, 02:20:20 AM 1. Where exactly are private keys and other application files stored (Android 4.3)? There is no /data/data/de.schildbach.wallet/ folder on the device (looked for ../data in device storage and sd card). 2. When this app is uninstalled from a device, does it make complete cleanup, deletes all private keys, etc? 1. So far, on each device the wallet was stored at /data/data/de.schildbach.wallet/files/wallet-protobuf. The location of the app-private directory is up to your specific version of Android. 2. Yes. If I may ask, would it be possible to modify the code to store the wallet on an USB Stick (OTG)? Or do you see any problems with that? -sf- Title: Re: where exactly are files stored on an Android device? Post by: btchris on October 17, 2016, 05:11:28 PM If I may ask, would it be possible to modify the code to store the wallet on an USB Stick (OTG)? Or do you see any problems with that? -sf- Someone correct me if I'm wrong, but the Android security model doesn't (I believe) extend to files saved on a USB OTG stick. That means that any app could access the wallet-protobuf file. Although Bitcoin Wallet for Android uses good key stretching for the PIN, it's still short enough to be fairly easy to brute-force by your average PC once stolen by a malicious app. So, not a good idea.... Title: Re: where exactly are files stored on an Android device? Post by: sugarfly on October 22, 2016, 06:05:28 PM If I may ask, would it be possible to modify the code to store the wallet on an USB Stick (OTG)? Or do you see any problems with that? -sf- Someone correct me if I'm wrong, but the Android security model doesn't (I believe) extend to files saved on a USB OTG stick. That means that any app could access the wallet-protobuf file. Although Bitcoin Wallet for Android uses good key stretching for the PIN, it's still short enough to be fairly easy to brute-force by your average PC once stolen by a malicious app. So, not a good idea.... I see how that could be a problem, yes. -sf- |