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Storage and Encryption​

Creating Storage​

NET/ReadyToUseUI.Droid/MainApplication.cs
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NET/ReadyToUseUI.Droid/MainApplication.cs
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Encryption​

The Scanbot SDK provides the ability to store the generated image files (JPG, PNG) and PDF files encrypted. This feature provides an additional level of security to the default secure storage locations of the native SDKs.

By default the file encryption is disabled. If you use ScanbotSDK wrapper, you have to pass the following config parameters on SDK initialization:

var initializer = new IO.Scanbot.Sdk.ScanbotSDKInitializer();
var processor = new AESEncryptedFileIOProcessor(
    "SomeSecretPa$$w0rdForFileEncryption",
    AESEncryptedFileIOProcessor.AESEncrypterMode.Aes256
);
initializer.UseFileEncryption(true, processor);

By activating the storage encryption the native Scanbot SDKs will use the built-in AES 128 or AES 256 encryption. All generated image files (JPG, PNG) including the preview image files, as well as the exported PDF files will be encrypted in memory and stored as encrypted data files on the flash storage of the device.

The Scanbot SDK derives the AES key from the given password, an internal salt value, and the internal number of iterations using the PBKDF2 function.

When applying image operations like cropping, rotation or image filters, Scanbot SDK will decrypt the image file in memory, apply the changes, encrypt and store it again.

Storage for Pages​

Scanned Document​

The Scanbot SDK provides a scanned document container class for scanned and imported pages. It can be used to store and retrieve scanned pages to and from the device disk.

Example of storing and retrieving a document and its pages​

Page access from storage
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