gistfile1.txt

let KeyStore = java.security.KeyStore
let Cipher = javax.crypto.Cipher
let KeyGenerator = javax.crypto.KeyGenerator
let KeyProperties = android.security.keystore.KeyProperties
let KeyGenParameterSpec = android.security.keystore.KeyGenParameterSpec
let FingerprintManager = android.hardware.fingerprint.FingerprintManager

export class TestClass {
    private keyguardManager = utils.ad.getApplicationContext().getSystemService("keyguard")
    private fingerprintManager = utils.ad.getApplicationContext().getSystemService("fingerprint")
    private REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS = 1001
    private KEY_NAME = 'fingerprintauth'
    private KEYSTORE_NAME = 'AndroidKeyStore'
    
    allInOneTest() {
        let keyStore = KeyStore.getInstance(this.KEYSTORE_NAME)
        keyStore.load(null)
        var keyGenerator = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, this.KEYSTORE_NAME)
        keyGenerator.init(
            new KeyGenParameterSpec.Builder(this.KEY_NAME, KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT)
                .setBlockModes([KeyProperties.BLOCK_MODE_CBC])
                .setUserAuthenticationRequired(false)
                .setEncryptionPaddings([KeyProperties.ENCRYPTION_PADDING_PKCS7])
                .build()
        )

        keyGenerator.generateKey()
        let secretKey = keyStore.getKey(this.KEY_NAME, null)
        let cipher = Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/" + KeyProperties.BLOCK_MODE_CBC + "/" + KeyProperties.ENCRYPTION_PADDING_PKCS7)
        cipher.init(Cipher.ENCRYPT_MODE, secretKey)

        let callbackClass = FingerprintManager.AuthenticationCallback.extend({
            onAuthenticationError(errorCode, errString) {
                console.log("error")
            },
            onAuthenticationHelp(helpCode, helpString) {

            },
            onAuthenticationSucceeded(result) {

            },
            onAuthenticationFailed() {

            }
        })
        
        let callbackInstance = new callbackClass()

        let cancellationSignal = new android.os.CancellationSignal()
        let cryptoObject = new FingerprintManager.CryptoObject(cipher)

        this.fingerprintManager.authenticate(cryptoObject, cancellationSignal, 0, callbackInstance, null)
    }
}