├── .gitignore ├── .idea ├── .gitignore ├── compiler.xml ├── gradle.xml └── misc.xml ├── LICENSE ├── README.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── st3v3nss │ │ └── insecurebankingfingerprint │ │ └── ExampleInstrumentedTest.java │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── com │ │ │ └── st3v3nss │ │ │ └── insecurebankingfingerprint │ │ │ └── MainActivity.java │ └── res │ │ ├── drawable-v24 │ │ └── ic_launcher_foreground.xml │ │ ├── drawable │ │ └── ic_launcher_background.xml │ │ ├── layout │ │ ├── activity_main.xml │ │ ├── content_main.xml │ │ ├── fingerprint_exception.xml │ │ ├── fingerprint_normal.xml │ │ └── fragment_first.xml │ │ ├── menu │ │ └── menu_main.xml │ │ ├── mipmap-anydpi-v26 │ │ ├── ic_launcher.xml │ │ └── ic_launcher_round.xml │ │ ├── mipmap-hdpi │ │ ├── ic_launcher.webp │ │ └── ic_launcher_round.webp │ │ ├── mipmap-mdpi │ │ ├── ic_launcher.webp │ │ └── ic_launcher_round.webp │ │ ├── mipmap-xhdpi │ │ ├── ic_launcher.webp │ │ └── ic_launcher_round.webp │ │ ├── mipmap-xxhdpi │ │ ├── ic_launcher.webp │ │ └── ic_launcher_round.webp │ │ ├── mipmap-xxxhdpi │ │ ├── ic_launcher.webp │ │ └── ic_launcher_round.webp │ │ ├── values-land │ │ └── dimens.xml │ │ ├── values-night │ │ └── themes.xml │ │ ├── values-w1240dp │ │ └── dimens.xml │ │ ├── values-w600dp │ │ └── dimens.xml │ │ ├── values │ │ ├── colors.xml │ │ ├── dimens.xml │ │ ├── strings.xml │ │ └── themes.xml │ │ └── xml │ │ ├── backup_rules.xml │ │ └── data_extraction_rules.xml │ └── test │ └── java │ └── com │ └── st3v3nss │ └── insecurebankingfingerprint │ └── ExampleUnitTest.java ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea/caches 5 | /.idea/libraries 6 | /.idea/modules.xml 7 | /.idea/workspace.xml 8 | /.idea/navEditor.xml 9 | /.idea/assetWizardSettings.xml 10 | .DS_Store 11 | /build 12 | /captures 13 | .externalNativeBuild 14 | .cxx 15 | local.properties 16 | -------------------------------------------------------------------------------- /.idea/.gitignore: -------------------------------------------------------------------------------- 1 | # Default ignored files 2 | /shelf/ 3 | /workspace.xml 4 | -------------------------------------------------------------------------------- /.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /.idea/gradle.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 18 | 19 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 14 | 15 | 16 | 17 | 18 | 19 | 21 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # InsecureBanking 2 | Insecure Android Application for testing Biometric bypasses 3 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | plugins { 2 | id 'com.android.application' 3 | } 4 | 5 | android { 6 | compileSdk 32 7 | 8 | defaultConfig { 9 | applicationId "com.st3v3nss.insecurebankingfingerprint" 10 | minSdk 24 11 | targetSdk 32 12 | versionCode 1 13 | versionName "1.0" 14 | 15 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 16 | } 17 | 18 | buildTypes { 19 | release { 20 | minifyEnabled false 21 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 22 | } 23 | } 24 | compileOptions { 25 | sourceCompatibility JavaVersion.VERSION_1_8 26 | targetCompatibility JavaVersion.VERSION_1_8 27 | } 28 | buildFeatures { 29 | viewBinding true 30 | } 31 | } 32 | 33 | dependencies { 34 | 35 | implementation 'androidx.appcompat:appcompat:1.4.2' 36 | implementation 'com.google.android.material:material:1.6.1' 37 | implementation 'androidx.constraintlayout:constraintlayout:2.1.4' 38 | implementation 'androidx.navigation:navigation-fragment:2.3.5' 39 | implementation 'androidx.navigation:navigation-ui:2.3.5' 40 | implementation 'androidx.biometric:biometric:1.1.0' 41 | testImplementation 'junit:junit:4.13.2' 42 | androidTestImplementation 'androidx.test.ext:junit:1.1.3' 43 | androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0' 44 | } -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile -------------------------------------------------------------------------------- /app/src/androidTest/java/com/st3v3nss/insecurebankingfingerprint/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.st3v3nss.insecurebankingfingerprint; 2 | 3 | import android.content.Context; 4 | 5 | import androidx.test.platform.app.InstrumentationRegistry; 6 | import androidx.test.ext.junit.runners.AndroidJUnit4; 7 | 8 | import org.junit.Test; 9 | import org.junit.runner.RunWith; 10 | 11 | import static org.junit.Assert.*; 12 | 13 | /** 14 | * Instrumented test, which will execute on an Android device. 15 | * 16 | * @see Testing documentation 17 | */ 18 | @RunWith(AndroidJUnit4.class) 19 | public class ExampleInstrumentedTest { 20 | @Test 21 | public void useAppContext() { 22 | // Context of the app under test. 23 | Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext(); 24 | assertEquals("com.st3v3nss.insecurebankingfingerprint", appContext.getPackageName()); 25 | } 26 | } -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 6 | 16 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | -------------------------------------------------------------------------------- /app/src/main/java/com/st3v3nss/insecurebankingfingerprint/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.st3v3nss.insecurebankingfingerprint; 2 | 3 | import androidx.annotation.NonNull; 4 | import androidx.appcompat.app.AppCompatActivity; 5 | import androidx.biometric.BiometricPrompt; 6 | import androidx.core.content.ContextCompat; 7 | 8 | import android.os.Bundle; 9 | import android.security.keystore.KeyGenParameterSpec; 10 | import android.security.keystore.KeyProperties; 11 | import android.view.View; 12 | import android.widget.Button; 13 | import android.widget.Toast; 14 | 15 | import java.security.InvalidAlgorithmParameterException; 16 | import java.security.InvalidKeyException; 17 | import java.security.Key; 18 | import java.security.NoSuchAlgorithmException; 19 | import java.security.NoSuchProviderException; 20 | import java.util.concurrent.Executor; 21 | 22 | import javax.crypto.Cipher; 23 | import javax.crypto.KeyGenerator; 24 | import javax.crypto.NoSuchPaddingException; 25 | import javax.crypto.SecretKey; 26 | 27 | public class MainActivity extends AppCompatActivity { 28 | private static final String KEYSTORE = "AndroidKeyStore"; 29 | private static final String KEY_ALIAS = "KeyAlias"; 30 | Executor executor; 31 | BiometricPrompt biometricPrompt; 32 | BiometricPrompt.PromptInfo promptInfo; 33 | @Override 34 | protected void onCreate(Bundle savedInstanceState) { 35 | super.onCreate(savedInstanceState); 36 | setContentView(R.layout.activity_main); 37 | 38 | Button fingerprint = (Button) findViewById(R.id.fingerprint); 39 | fingerprint.setOnClickListener(new View.OnClickListener() { 40 | @Override 41 | public void onClick(View view) { 42 | executor = ContextCompat.getMainExecutor(getApplicationContext()); 43 | 44 | biometricPrompt = new BiometricPrompt(MainActivity.this, executor, new BiometricPrompt.AuthenticationCallback() { 45 | @Override 46 | public void onAuthenticationSucceeded(@NonNull BiometricPrompt.AuthenticationResult result) { 47 | Toast.makeText(MainActivity.this,"Success",Toast.LENGTH_LONG).show(); 48 | setContentView(R.layout.fingerprint_normal); 49 | } 50 | 51 | @Override 52 | public void onAuthenticationError(int errorCode, @NonNull CharSequence errString) { 53 | super.onAuthenticationError(errorCode, errString); 54 | 55 | Toast.makeText(MainActivity.this,errString,Toast.LENGTH_LONG).show(); 56 | MainActivity.this.finish(); 57 | } 58 | 59 | @Override 60 | public void onAuthenticationFailed() { 61 | super.onAuthenticationFailed(); 62 | 63 | Toast.makeText(MainActivity.this,"FAILED",Toast.LENGTH_LONG).show(); 64 | } 65 | }); 66 | 67 | 68 | promptInfo = new BiometricPrompt.PromptInfo.Builder() 69 | .setTitle("Touch id required") 70 | .setDescription("Touch the touch id sensor") 71 | .setNegativeButtonText("Exit") 72 | .build(); 73 | 74 | biometricPrompt.authenticate(promptInfo); 75 | } 76 | }); 77 | 78 | Button fingerprint_exception = (Button) findViewById(R.id.fingerprint_exception); 79 | fingerprint_exception.setOnClickListener(new View.OnClickListener() { 80 | @Override 81 | public void onClick(View view) { 82 | KeyGenerator generator = null; 83 | try { 84 | generator = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, KEYSTORE); 85 | } catch (NoSuchAlgorithmException e) { 86 | e.printStackTrace(); 87 | } catch (NoSuchProviderException e) { 88 | e.printStackTrace(); 89 | } 90 | 91 | try { 92 | generator.init(new KeyGenParameterSpec.Builder (KEY_ALIAS, 93 | KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT) 94 | .setBlockModes(KeyProperties.BLOCK_MODE_CBC) 95 | .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7) 96 | .setUserAuthenticationRequired(true) 97 | .build() 98 | ); 99 | } catch (InvalidAlgorithmParameterException e) { 100 | e.printStackTrace(); 101 | } 102 | 103 | generator.generateKey(); 104 | 105 | executor = ContextCompat.getMainExecutor(getApplicationContext()); 106 | 107 | biometricPrompt = new BiometricPrompt(MainActivity.this, executor, new BiometricPrompt.AuthenticationCallback() { 108 | @Override 109 | public void onAuthenticationSucceeded(@NonNull BiometricPrompt.AuthenticationResult result ) { 110 | Toast.makeText(MainActivity.this,"Success",Toast.LENGTH_LONG).show(); 111 | setContentView(R.layout.fingerprint_exception); 112 | } 113 | 114 | @Override 115 | public void onAuthenticationError(int errorCode, @NonNull CharSequence errString) { 116 | super.onAuthenticationError(errorCode, errString); 117 | 118 | Toast.makeText(MainActivity.this,errString,Toast.LENGTH_LONG).show(); 119 | MainActivity.this.finish(); 120 | } 121 | 122 | @Override 123 | public void onAuthenticationFailed() { 124 | super.onAuthenticationFailed(); 125 | 126 | Toast.makeText(MainActivity.this,"FAILED",Toast.LENGTH_LONG).show(); 127 | } 128 | 129 | }); 130 | 131 | promptInfo = new BiometricPrompt.PromptInfo.Builder() 132 | .setTitle("Touch id required") 133 | .setDescription("Touch the touch id sensor") 134 | .setNegativeButtonText("Exit") 135 | .build(); 136 | try { 137 | BiometricPrompt.CryptoObject cryptoObject = new BiometricPrompt.CryptoObject(getEncryptCipher(createKey())); 138 | biometricPrompt.authenticate(promptInfo, cryptoObject); 139 | } catch (NoSuchAlgorithmException e) { 140 | e.printStackTrace(); 141 | } catch (NoSuchProviderException e) { 142 | e.printStackTrace(); 143 | } catch (InvalidAlgorithmParameterException e) { 144 | e.printStackTrace(); 145 | } catch (NoSuchPaddingException e) { 146 | e.printStackTrace(); 147 | } catch (InvalidKeyException e) { 148 | e.printStackTrace(); 149 | } 150 | 151 | } 152 | }); 153 | 154 | } 155 | 156 | private SecretKey createKey() throws NoSuchProviderException, NoSuchAlgorithmException, InvalidAlgorithmParameterException { 157 | String algorithm = KeyProperties.KEY_ALGORITHM_AES; 158 | String provider = "AndroidKeyStore"; 159 | KeyGenerator keyGenerator = KeyGenerator.getInstance(algorithm, provider); 160 | KeyGenParameterSpec keyGenParameterSpec = new KeyGenParameterSpec.Builder("MY_KEY", KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT) 161 | .setBlockModes(KeyProperties.BLOCK_MODE_CBC) 162 | .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7) 163 | .setUserAuthenticationRequired(true) 164 | .build(); 165 | 166 | keyGenerator.init(keyGenParameterSpec); 167 | return keyGenerator.generateKey(); 168 | } 169 | 170 | private Cipher getEncryptCipher(Key key) throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException, InvalidKeyException { 171 | String algorithm = KeyProperties.KEY_ALGORITHM_AES; 172 | String blockMode = KeyProperties.BLOCK_MODE_CBC; 173 | String padding = KeyProperties.ENCRYPTION_PADDING_PKCS7; 174 | Cipher cipher = Cipher.getInstance(algorithm+"/"+blockMode+"/"+padding); 175 | cipher.init(Cipher.ENCRYPT_MODE, key); 176 | return cipher; 177 | } 178 | } -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 8 | 9 | 15 | 18 | 21 | 22 | 23 | 24 | 30 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 171 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 9 | 19 | 20 |