Fingerprint API for Android

Transcript

1. Fingerprint API
   for Android
   @takuji31
   

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2. About me
   • Takuji Nishibayashi
   • @takuji31
   • Fenrir Inc.
   • NNID: takuji31
   • Udemae: S / Rank: 41
   • Loves Android / Kotlin
   

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3. New features in
   Marshmallow
   (Android 6)
   

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4. Now on Tap
   

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5. New Permission
   Model
   

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6. see. http://bit.ly/1LI09MJ
   

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7. Fingerprint API
   

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8. Authentication
   with Fingerprint
   

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9. Available in
   Nexus 5X/6P
   (Nexus Imprint)
   

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10. how to use
    

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11. Use these APIs in
    conjunction with
    the Android
    Keystore system.
    — Android 6.0 APIs
    

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12. Needs keyguard
    lock
    

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13. PIN
    

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14. Password
    

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15. Pattern
    

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16. Add
    USE_FINGERPRINT
    permission
    

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17. Add USE_FINGERPRINT
    permission
    
    

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18. Check keyguard is
    enabled
    

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19. Check keyguard is enabled
    public class MainActivity extends Activity {
    KeyguardManager mKeyguardManager;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if (!mKeyguardManager.isKeyguardSecure()) {
    // keyguard disabled
    Toast.makeText(this,
    "Secure lock screen hasn't set up.\n"
    + "Go to 'Settings -> Security -> Fingerprint' to set up a fingerprint",
    Toast.LENGTH_LONG).show();
    return;
    }
    }
    }
    

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20. Check fingerprint
    registered
    

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21. Check fingerprint registered
    public class MainActivity extends Activity {
    @Inject FingerprintManager mFingerprintManager;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if (!mFingerprintManager.hasEnrolledFingerprints()) {
    // no fingerprints registered
    Toast.makeText(this,
    "Go to 'Settings -> Security -> Fingerprint' and register at least one fingerprint",
    Toast.LENGTH_LONG).show();
    return;
    }
    }
    }
    

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22. Create encryption
    key
    

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23. Start
    Authentication
    

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24. Start Authentication
    mCancellationSignal = new CancellationSignal();
    mFingerprintManager.authenticate(cryptoObject, mCancellationSignal, 0, this, null);
    @Override
    public void onAuthenticationError(int errMsgId, CharSequence errString) {
    // authentication error
    }
    @Override
    public void onAuthenticationHelp(int helpMsgId, CharSequence helpString) {
    // needs help?
    }
    @Override
    public void onAuthenticationFailed() {
    // failed
    }
    @Override
    public void onAuthenticationSucceeded(FingerprintManager.AuthenticationResult result) {
    // succeeded
    }
    

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25. but
    

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26. These codes has
    no UI
    

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27. Create UI
    yourself !
    

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28. Darkness..?
    

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29. No!
    

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30. Use sample code
    dialog fragment
    

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31. Two samples available
    • Fingerprint Dialog
    • Asymmetric Fingerprint Dialog
    

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33. !
    

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34. URL
    • Android 6.0 APIs
    • http://developer.android.com/intl/ja/about/versions/marshmallow/
    android-6.0.html#fingerprint-authentication
    • Android Keystore System
    • http://developer.android.com/intl/ja/training/articles/keystore.html
    • FingerprintDialog sample
    • http://developer.android.com/intl/ja/samples/FingerprintDialog/
    index.html
    • Google Store
    • https://store.google.com/category/phones
    • Buy now !
    

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35. Happy secure life!
    

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