yavel

Yet Another (primitive type) Value Encryption Library (for Android)

Yavel encrypts primitive types for secure storage (in local or remote databases). Encrypted values are stored in Strings. If you store values via Yavel, all the values will be encrypted with AES256 in GCM mode with a key that is generated with and is stored in the Android keystore. Key material cannot be extracted from the keystore and only the app that created it can access the key.

The benefits: pentesters and hackers won't be able to read and manipulate the values of your data even on a rooted device or a compromised remote server. You can store security sensitive information in local or remote databases.

Features

• AES256 GCM encryption
• No need to set password
• Encryption key is stored in the Android Keystore. Key material never leaves the keystore, key cannot be extracted.
• Reasonably fast

Dependency

Add this in your root build.gradle file (not your module build.gradle file):

allprojects {
	repositories {
        maven { url "https://jitpack.io" }
    }
}

Then, add the library to your module build.gradle

dependencies {
    implementation com.github.vokod:yavel:LATEST'
}

Usage

val yavel = Yavel.get(KEY_ALIAS)

val encryptedString = yavel.encryptString(stringValue)
val decryptedString = yavel.decryptString(encryptedString)

val encryptedInt = yavel.encryptInt(intValue)
val decryptedInt = yavel.decryptInt(encryptedInt)

val encryptedBoolean = yavel.encryptBoolean(booleanValue)
val decryptedBoolean = yavel.decryptBoolean(encryptedBoolean)

val encryptedLong = yavel.encryptLong(longValue)
val decryptedLong = yavel.decryptLong(encryptedLong)

val encryptedFloat = yavel.encryptFloat(floatValue)
val decryptedFloat = yavel.decryptDouble(encryptedFloat)

val encryptedDouble = yavel.encryptDouble(doubleValue)
val decryptedDouble = yavel.decryptDouble(encryptedDouble)

Compatibility

minSdkVersion 23