2010年11月25日 · I want to encrypt file and store it in SD card. I want to decrypt that encrypted file and store it in SD card again. I have tried to encrypt file by opening it as file stream and …

2021年7月23日 · The workflow goes as follows: 1) read an image from external storage, input a passphrase, encrypt file using (e.g.) AES-256 in GCM mode with key derivation (e.g.) …

Different from encrypting full disk, file based encryption can encrypt each file via different keys. The most noticeable usage is that different user profile now using different keys. Previously, …

2013年4月3日 · User can save these files in cache to be able to play them offline. This data is saved to SD-card and can be accessed by file managers e t.c. I want to limit access to these …

Check the length of the non-Android encrypted file you are producing. Compare it with the length of the encrypted file you are reading in Android. The two lengths should, obviously, be the …

2023年9月13日 · I'm currently working on an application for encrypting a file using the AES algorithm. I'm aware that Android provides a convenient way to do this kind of job by using …

I am encrypting a file created on the android app in a Bluetooth service. In another class later on I want to decrypt this file and upload it to a server. For encryption I am using the AndroidX …

2012年5月21日 · I am trying to do encryption / decryption of files. I could successfully encrypt the files. But when the file size is huge like video files, the algorithm takes very long time. To solve …

2017年3月31日 · What commonware answered doesn't solve the problem. hackers can reverse engineer it to get url where you download the assets or else get the file data from the memory …

It's required for users to keep filesystems of their devices encrypted, but we have to check this fact and forbid to use app. Is it possible to check if filesystem is encrypted? Also there are …