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R00tedbrainR00tedbrain
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V2 FIXED AES GCM BETTER ENCRYPTION
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‎comencryptbwt/app/build.gradle.kts‎

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plugins {
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id("com.android.application")
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id("org.jetbrains.kotlin.android")
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}
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android {
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namespace = "com.encrypt.bwt"
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compileSdk = 34
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defaultConfig {
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applicationId = "com.encrypt.bwt"
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minSdk = 26
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targetSdk = 34
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versionCode = 1
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versionName = "1.0"
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testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
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}
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compileOptions {
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sourceCompatibility = JavaVersion.VERSION_17
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targetCompatibility = JavaVersion.VERSION_17
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}
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kotlinOptions {
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jvmTarget = "17"
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}
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buildFeatures {
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compose = true
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viewBinding = true
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}
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composeOptions {
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kotlinCompilerExtensionVersion = "1.5.3"
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}
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buildTypes {
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getByName("release") {
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// Habilitamos ProGuard/R8
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isMinifyEnabled = true // Para ofuscar el código
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isShrinkResources = true // (Opcional) Quitar recursos no usados
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// Usamos el archivo ProGuard por defecto + nuestro archivo
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proguardFiles(
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getDefaultProguardFile("proguard-android-optimize.txt"),
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"proguard-rules.pro"
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)
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}
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// Si quieres un build "debug" sin ofuscar, no cambies nada aquí
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}
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}
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dependencies {
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implementation("com.google.code.findbugs:jsr305:3.0.2")
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// Core
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implementation("androidx.core:core-ktx:1.10.1")
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implementation("androidx.appcompat:appcompat:1.6.1")
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implementation("com.google.android.material:material:1.9.0")
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implementation("androidx.constraintlayout:constraintlayout:2.1.4")
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// Compose (opcional)
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implementation("androidx.activity:activity-compose:1.7.2")
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implementation("androidx.compose.ui:ui:1.5.3")
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implementation("androidx.compose.material:material:1.5.3")
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implementation("androidx.compose.material3:material3:1.2.0")
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implementation("androidx.compose.ui:ui-tooling-preview:1.5.3")
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implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.6.1")
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debugImplementation("androidx.compose.ui:ui-tooling:1.5.3")
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// BouncyCastle u otras libs de cifrado
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implementation("org.bouncycastle:bcprov-jdk15on:1.70")
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// EncryptedSharedPreferences
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implementation("androidx.security:security-crypto:1.1.0-alpha03")
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// Gson para serializar/deserializar las claves
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implementation("com.google.code.gson:gson:2.10.1")
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// Test
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testImplementation("junit:junit:4.13.2")
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androidTestImplementation("androidx.test.ext:junit:1.1.5")
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androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
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}

‎comencryptbwt/app/proguard-rules.pro‎

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###############################################################################
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## ProGuard / R8 rules
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###############################################################################
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#--------------------------------------------------
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# 1) MANTENER Actividades, servicios, y clases que
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# forman parte del entry point de Android.
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# Ajusta el package a tu proyecto (com.encrypt.bwt).
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#--------------------------------------------------
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-keep class com.encrypt.bwt.** {
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<init>();
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}
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#--------------------------------------------------
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# 2) ViewBinding / DataBinding
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# Mantiene clases generadas por el binding,
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# y evita problemas con reflexiones internas.
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#--------------------------------------------------
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-keep class **ViewBinding
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-keep class **ViewDataBinding
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-keep class androidx.databinding.** { *; }
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#--------------------------------------------------
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# 3) Mantener las anotaciones (por ejemplo para
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# inyección de dependencias o Compose).
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#--------------------------------------------------
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-keepattributes *Annotation*
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#--------------------------------------------------
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# 4) GSON
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# Si usas GSON para serializar 'KeyItem' u otras
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# clases, conviene mantener sus campos si GSON
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# hace reflexiones en runtime para parsear JSON.
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# -keep class com.encrypt.bwt.KeyItem { *; }
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#
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# O, si no quieres que se renombre,
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# -keep class com.encrypt.bwt.** implements java.io.Serializable { *; }
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# Pero en muchos casos GSON sigue funcionando si
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# no usas reflection de campos private.
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# Ajusta segun convenga.
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#--------------------------------------------------
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-keep class com.google.gson.** { *; }
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-dontwarn com.google.gson.**
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# (Opcional) si tus modelos se parsean con GSON por reflection:
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# -keepclassmembers class com.encrypt.bwt.** {
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# <fields>;
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# }
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#--------------------------------------------------
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# 5) PBKDF2 + javax.crypto + SecureRandom
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# Normalmente no hace falta,
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# pero si quieres evitar warnings:
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#--------------------------------------------------
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-dontwarn javax.crypto.**
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-dontwarn java.security.**
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-dontwarn org.bouncycastle.** # Por si usas BouncyCastle en otra parte
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#--------------------------------------------------
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# 6) Jetpack Compose (si tuvieras Compose).
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# Para evitar warnings y mantener lo esencial:
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#--------------------------------------------------
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-dontwarn androidx.compose.**
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-keep class androidx.compose.runtime.** { *; }
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-keep class androidx.compose.ui.** { *; }
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#--------------------------------------------------
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# 7) Remover logs de linea si lo deseas
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# -renamesourcefileattribute SourceFile
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# -keepattributes SourceFile,LineNumberTable
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#
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# Queda a tu criterio.
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# Podrías hacer la app más "opaca" para debugging.
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#--------------------------------------------------
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#--------------------------------------------------
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# 8) Overaggressive rename
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# -overloadaggressively
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# Solo si quieres agresividad mayor.
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# Puede romper ciertos Reflection. Úsalo con cuidado.
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#--------------------------------------------------
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###############################################################################
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## FIN
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###############################################################################

‎comencryptbwt/app/release/Encryptv2proguard.apk‎

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‎comencryptbwt/app/release/baselineProfiles/0/app-release.dm‎

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‎comencryptbwt/app/release/baselineProfiles/1/app-release.dm‎

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‎comencryptbwt/app/release/output-metadata.json‎

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{
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"version": 3,
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"artifactType": {
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"type": "APK",
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"kind": "Directory"
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},
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"applicationId": "com.encrypt.bwt",
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"variantName": "release",
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"elements": [
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{
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"type": "SINGLE",
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"filters": [],
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"attributes": [],
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"versionCode": 1,
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"versionName": "1.0",
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"outputFile": "app-release.apk"
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}
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],
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"elementType": "File",
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"baselineProfiles": [
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{
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"minApi": 28,
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"maxApi": 30,
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"baselineProfiles": [
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"baselineProfiles/1/app-release.dm"
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]
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},
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{
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"minApi": 31,
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"maxApi": 2147483647,
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"baselineProfiles": [
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"baselineProfiles/0/app-release.dm"
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]
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}
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],
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"minSdkVersionForDexing": 26
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}

‎comencryptbwt/app/src/androidTest/java/com/example/bwt/ExampleInstrumentedTest.kt‎

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package com.example.bwt
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import androidx.test.platform.app.InstrumentationRegistry
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import androidx.test.ext.junit.runners.AndroidJUnit4
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import org.junit.Test
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import org.junit.runner.RunWith
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import org.junit.Assert.*
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/**
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* Instrumented test, which will execute on an Android device.
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*
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* See [testing documentation](http://d.android.com/tools/testing).
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*/
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@RunWith(AndroidJUnit4::class)
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class ExampleInstrumentedTest {
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@Test
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fun useAppContext() {
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// Context of the app under test.
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val appContext = InstrumentationRegistry.getInstrumentation().targetContext
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assertEquals("com.example.comencryptbwt", appContext.packageName)
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}
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}

‎comencryptbwt/app/src/main/AndroidManifest.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<manifest
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xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.encrypt.bwt"
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xmlns:tools="http://schemas.android.com/tools">
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/Theme.Encryption">
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<!-- Actividad principal de tu app -->
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<activity
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android:name=".MainActivity"
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android:exported="true">
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<intent-filter>
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<action android:name="android.intent.action.MAIN"/>
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<category android:name="android.intent.category.LAUNCHER"/>
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</intent-filter>
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</activity>
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<!-- Actividad para ENCRIPTAR texto seleccionado (ACTION_PROCESS_TEXT) -->
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<activity
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android:name=".EncryptProcessActivity"
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android:label="@string/action_encrypt_label"
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android:exported="true"
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tools:ignore="AppLinkUrlError">
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<intent-filter>
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<action android:name="android.intent.action.PROCESS_TEXT"/>
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<category android:name="android.intent.category.DEFAULT"/>
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<data android:mimeType="text/plain"/>
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</intent-filter>
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</activity>
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<!-- Actividad para DESENCRIPTAR texto seleccionado (ACTION_PROCESS_TEXT) -->
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<activity
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android:name=".DecryptProcessActivity"
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android:label="@string/action_decrypt_label"
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android:exported="true"
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tools:ignore="AppLinkUrlError">
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<intent-filter>
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<action android:name="android.intent.action.PROCESS_TEXT"/>
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<category android:name="android.intent.category.DEFAULT"/>
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<data android:mimeType="text/plain"/>
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</intent-filter>
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</activity>
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<!-- ACTIVIDAD para ENCRIPTAR al COMPARTIR (ACTION_SEND) -->
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<activity
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android:name=".EncryptShareActivity"
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android:label="@string/share_encrypt_label"
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android:exported="true">
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<intent-filter>
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<action android:name="android.intent.action.SEND"/>
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<category android:name="android.intent.category.DEFAULT"/>
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<data android:mimeType="text/plain"/>
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</intent-filter>
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</activity>
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<!-- ACTIVIDAD para DESENCRIPTAR al COMPARTIR (ACTION_SEND) -->
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<activity
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android:name=".DecryptShareActivity"
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android:label="@string/share_decrypt_label"
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android:exported="true">
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<intent-filter>
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<action android:name="android.intent.action.SEND"/>
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<category android:name="android.intent.category.DEFAULT"/>
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<data android:mimeType="text/plain"/>
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</intent-filter>
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</activity>
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<!-- NUEVA: Activity para administrar las claves (KeyManagerActivity) -->
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<activity
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android:name=".KeyManagerActivity"
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android:label="@string/manage_keys_title"
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android:exported="true">
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</activity>
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</application>
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</manifest>

‎comencryptbwt/app/src/main/ic_launcher-playstore.png‎

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