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‎.gitignore

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*.iml
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.gradle
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/local.properties
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/.idea/caches
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/.idea/libraries
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/.idea/modules.xml
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/.idea/workspace.xml
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/.idea/navEditor.xml
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/.idea/assetWizardSettings.xml
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.DS_Store
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/build
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/captures
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.externalNativeBuild
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.cxx
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local.properties

‎.idea/.gitignore

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‎.idea/compiler.xml

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‎.idea/gradle.xml

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‎.idea/misc.xml

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‎README.md

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# PQCLibary-AndroidJava
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NIST Standartlaştırma sürecindeki kafes-tabanlı SABER, CRYSTAL-KYBER ve NTRU algoritmaları ile oluşturulmuştur. Android-Java ortamında test aşamaları yapılmıştır.
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Kütüphanenin Kullanımı:
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```java
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PQCLibary pqcLibary = new PQCLibary("Algoritma_Etiketi"); // Anahtar Üretimi
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```
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PQC-Library içerisinde kullanılabilecek etiketler aşağıda listelenmiştir.
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| Algoritma | PQC-Library Etiketi |
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| --- | --- |
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| LightSaber | Saber_Light |
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| Saber | Saber |
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| FireSaber | Saber_Fire |
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| Kyber512 | Kyber_512 |
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| Kyber768 | Kyber_768|
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| ntruhps2048509 | NTRU_509 |
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| ntruhps2048677 | NTRU_677 |
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| ntruhps4096821 | NTRU_821 |
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| ntruhrss701 | NTRU_701 |
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Örnek Kullanım:
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```java
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PQCLibary pqcLibary = new PQCLibary("Kyber_512"); // Anahtar Üretimi
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EncapsulationModel enc = pqcLibary.Encapsulation(pqcLibary.pk); //Paketleme
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byte[] sharedSecretKey = pqcLibary.Decapsulation(enc.getCipherText(),pqcLibary.sk); // Paket Çözme
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```
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Bu çalısma 121R006 proje numarasıyla TUBITAK tarafından desteklenmektedir.

‎app/.gitignore

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/build

‎app/build.gradle

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plugins {
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id 'com.android.application'
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}
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android {
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compileSdk 32
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defaultConfig {
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applicationId "com.afd.pqclibary"
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minSdk 21
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targetSdk 32
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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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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
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}
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}
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compileOptions {
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sourceCompatibility JavaVersion.VERSION_1_8
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targetCompatibility JavaVersion.VERSION_1_8
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}
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}
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dependencies {
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implementation 'com.github.aelstad:keccakj:1.1.0'
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implementation 'androidx.appcompat:appcompat:1.4.1'
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implementation 'com.google.android.material:material:1.5.0'
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implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
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testImplementation 'junit:junit:4.13.2'
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androidTestImplementation 'androidx.test.ext:junit:1.1.3'
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androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
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}

‎app/proguard-rules.pro

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# Add project specific ProGuard rules here.
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# You can control the set of applied configuration files using the
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# proguardFiles setting in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}
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# Uncomment this to preserve the line number information for
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# debugging stack traces.
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#-keepattributes SourceFile,LineNumberTable
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# If you keep the line number information, uncomment this to
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# hide the original source file name.
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#-renamesourcefileattribute SourceFile

‎app/src/androidTest/java/com/sak/pqclibary/ExampleInstrumentedTest.java

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package com.sak.pqclibary;
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import android.content.Context;
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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 static 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 <a href="http://d.android.com/tools/testing">Testing documentation</a>
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*/
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@RunWith(AndroidJUnit4.class)
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public class ExampleInstrumentedTest {
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@Test
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public void useAppContext() {
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// Context of the app under test.
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Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
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assertEquals("com.ntru.pqclibary", appContext.getPackageName());
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}
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}

‎app/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.sak.pqclibary">
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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.PQCLibary">
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<activity
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android:name="com.sak.pqclibary.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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</application>
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</manifest>

‎app/src/main/java/com/sak/pqclibary/MainActivity.java

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package com.sak.pqclibary;
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import androidx.annotation.RequiresApi;
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import androidx.appcompat.app.AppCompatActivity;
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import android.os.Build;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.View;
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import com.sak.pqclibary.kyber.kyberencryption.provider.Kyber1024KeyPairGenerator;
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import com.sak.pqclibary.kyber.kyberencryption.provider.KyberKeyPair;
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import com.sak.pqclibary.kyber.kyberencryption.provider.KyberProcess;
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import com.sak.pqclibary.kyber.kyberencryption.provider.KyberSecretKey;
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import com.sak.pqclibary.kyber.kyberencryption.provider.kyber.KyberParams;
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import com.sak.pqclibary.saber.Kem;
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import com.sak.pqclibary.saber.models.EncapsulationModel;
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import com.sak.pqclibary.saber.models.Keys;
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import com.sak.pqclibary.saber.utils.Utils;
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public class MainActivity extends AppCompatActivity {
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@RequiresApi(api = Build.VERSION_CODES.O)
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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PQCLibary pqcLibary = new PQCLibary("Kyber_1024");
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EncapsulationModel enc = pqcLibary.Encapsulation(pqcLibary.pk);
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byte[] sharedSecretKey = pqcLibary.Decapsulation(enc.getCipherText(),pqcLibary.sk);
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Log.d("AFD-AFD", Utils.hex(sharedSecretKey));
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}
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}

‎app/src/main/java/com/sak/pqclibary/PQCLibary.java

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package com.sak.pqclibary;
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import android.os.Build;
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import androidx.annotation.RequiresApi;
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import com.sak.pqclibary.kyber.kyberencryption.provider.Kyber1024KeyPairGenerator;
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import com.sak.pqclibary.kyber.kyberencryption.provider.Kyber512KeyPairGenerator;
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import com.sak.pqclibary.kyber.kyberencryption.provider.Kyber768KeyPairGenerator;
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import com.sak.pqclibary.kyber.kyberencryption.provider.KyberKeyPair;
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import com.sak.pqclibary.kyber.kyberencryption.provider.KyberProcess;
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import com.sak.pqclibary.kyber.kyberencryption.provider.kyber.KyberParams;
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import com.sak.pqclibary.ntru.OWCPA;
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import com.sak.pqclibary.saber.Kem;
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import com.sak.pqclibary.saber.Params;
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import com.sak.pqclibary.saber.models.EncapsulationModel;
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import com.sak.pqclibary.saber.models.Keys;
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public class PQCLibary {
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byte[] pk;
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byte[] sk;
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byte[] cipherText;
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byte[] ssk1;
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byte[] rnd1 = new byte[KyberParams.paramsSymBytes];
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int algorithmType;
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@RequiresApi(api = Build.VERSION_CODES.O)
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public PQCLibary(String algorithmName) {
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String[] a = algorithmName.split("_");
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Keys keys = null;
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if (a.length==1){
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this.algorithmType= 1;
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new Params(3,8,4);
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keys = Kem.crypto_kem_keypair();
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}
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else if(a.length == 2){
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if(a[0].equalsIgnoreCase("Saber")){
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if(a[1].equalsIgnoreCase("Light")){
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new Params(2,10,3);
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}
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else if(a[1].equalsIgnoreCase("Fire")){
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new Params(4,6,6);
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}
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this.algorithmType = 1;
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keys = Kem.crypto_kem_keypair();
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}
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else if(a[0].equalsIgnoreCase("NTRU")){
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if(a[1].equalsIgnoreCase("509")){
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new com.sak.pqclibary.ntru.Params(509);
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}
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else if(a[1].equalsIgnoreCase("677")){
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new com.sak.pqclibary.ntru.Params(677);
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}
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else if(a[1].equalsIgnoreCase("821")){
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new com.sak.pqclibary.ntru.Params(821);
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}
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this.algorithmType = 2;
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keys = OWCPA.owcpa_keypair();
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}
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else if(a[0].equalsIgnoreCase("Kyber")){
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KyberKeyPair kk =null;
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if(a[1].equalsIgnoreCase("512")){
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kk = Kyber512KeyPairGenerator.generateKeys512();
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this.algorithmType = 3;
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}
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else if(a[1].equalsIgnoreCase("768")){
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kk = Kyber768KeyPairGenerator.generateKeys768();
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this.algorithmType = 4;
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}
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else if(a[1].equalsIgnoreCase("1024")){
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kk = Kyber1024KeyPairGenerator.generateKeys1024();
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this.algorithmType = 5;
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}
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keys = new Keys(kk.getKyberPublicKey(),kk.getKyberPrivateKey());
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}
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}
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this.pk = keys.getPk();
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this.sk = keys.getSk();
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}
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public EncapsulationModel Encapsulation(byte[] pk){
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EncapsulationModel enc;
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switch (algorithmType){
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case 1:
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enc = Kem.crypto_kem_enc(pk);
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break;
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case 2:
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enc = OWCPA.crypto_kem_enc(pk);
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break;
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case 3:
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enc = new EncapsulationModel(KyberProcess.encrypt512(rnd1,pk).getCipherText(),KyberProcess.encrypt512(rnd1,pk).getSecretKey());
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break;
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case 4:
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enc = new EncapsulationModel(KyberProcess.encrypt768(rnd1,pk).getCipherText(),KyberProcess.encrypt768(rnd1,pk).getSecretKey());
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break;
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case 5:
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enc = new EncapsulationModel(KyberProcess.encrypt1024(rnd1,pk).getCipherText(),KyberProcess.encrypt1024(rnd1,pk).getSecretKey());
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break;
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default:
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throw new IllegalStateException("Unexpected value: " + algorithmType);
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}
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return new EncapsulationModel(enc.getCipherText(),enc.getSs());
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}
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public byte[] Decapsulation(byte[] ct , byte[] sk){
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byte[] ssk2 ;
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switch (algorithmType){
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case 1:
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ssk2 = Kem.crypto_kem_dec(sk,ct);
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break;
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case 2 :
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ssk2 = OWCPA.crypto_kem_dec(ct,sk);
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break;
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case 3 :
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ssk2 = KyberProcess.decrypt512(ct,sk);
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break;
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case 4 :
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ssk2 = KyberProcess.decrypt768(ct,sk);
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break;
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case 5 :
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ssk2 = KyberProcess.decrypt1024(ct,sk);
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break;
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default:
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throw new IllegalStateException("Unexpected value: " + algorithmType);
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}
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return ssk2;
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}
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}

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