EncryptionServices.kt

var message = "Hello Word"

// Creates Android Key Store and provides manage functions
private val keyStoreWrapper = KeyStoreWrapper(context)

// Create and Save asymmetric key
keyStoreWrapper.createAndroidKeyStoreAsymmetricKey("MASTER_KEY")

// Get key from keyStore
var masterKey = keyStoreWrapper.getAndroidKeyStoreAsymmetricKeyPair("MASTER_KEY")

// Creates Cipher with given transformation and provides encrypt and decrypt functions
var cipherWrapper = CipherWrapper("RSA/ECB/PKCS1Padding")

// Encrypt message with the key, using public key
var encryptedData = cipherWrapper.encrypt(data, masterKey?.public)

// Output is:
// aB9Ce9d5oM0/yloLQikOz8RovWHLmoQf3ovlCiz+D9+0/y7ZDfx6SpPYsKFIK3df079DNVIGVXIW
// 63CIUrrc7zLPMCCHCnzoeNJMqj2z0mFclluXzr5mCDJYfU/63yPeUpCPuo3y1SfXPPPNYJKhz2pq
// TugVE+rWoql9019BwTKtBy80nOE4RDQnMe6M9FWcSv/k6NyFtml9iwwtGVuRGXpSgh9humMWT0Cu
// MxzHusdIaRaviY4mQLFS+iIyRC3Riu0OxbkgTWpDs937Vfv3LSslJSo2CvwqFEnMGhkGvMdjtNhJ
// vGnpzMYN/rYWt/cer8nreURscXN7o3IR8ZtPkA==

// Decrypt message with the key, using private key
var decryptedData = cipherWrapper.decrypt(data, masterKey?.private)

// Output is:
// Hello Word