diff --git a/pom.xml b/pom.xml
deleted file mode 100644
index f4850bf..0000000
--- a/pom.xml
+++ /dev/null
@@ -1,65 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-
-    <groupId>eu.siacs.conversations</groupId>
-    <artifactId>ImageDownloader</artifactId>
-    <version>0.1</version>
-
-    <dependencies>
-        <dependency>
-            <groupId>org.bouncycastle</groupId>
-            <artifactId>bcprov-jdk15on</artifactId>
-            <version>1.54</version>
-        </dependency>
-    </dependencies>
-
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-shade-plugin</artifactId>
-                <version>2.4.3</version>
-                <executions>
-                    <execution>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>shade</goal>
-                        </goals>
-                        <configuration>
-                            <filters>
-                                <filter>
-                                    <artifact>*:*</artifact>
-                                    <excludes>
-                                        <exclude>META-INF/*.SF</exclude>
-                                        <exclude>META-INF/*.DSA</exclude>
-                                        <exclude>META-INF/*.RSA</exclude>
-                                    </excludes>
-                                </filter>
-                            </filters>
-                            <transformers>
-                                <transformer
-                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
-                                    <mainClass>eu.siacs.conversations.Downloader</mainClass>
-                                </transformer>
-                                <transformer
-                                        implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
-                            </transformers>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.3</version>
-                <configuration>
-                    <source>7</source>
-                    <target>7</target>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
-</project>
diff --git a/src/main/java/eu/siacs/conversations/Downloader.java b/src/main/java/eu/siacs/conversations/Downloader.java
deleted file mode 100644
index d81cc42..0000000
--- a/src/main/java/eu/siacs/conversations/Downloader.java
+++ /dev/null
@@ -1,62 +0,0 @@
-package eu.siacs.conversations;
-
-import org.bouncycastle.crypto.engines.AESEngine;
-import org.bouncycastle.crypto.io.CipherOutputStream;
-import org.bouncycastle.crypto.modes.AEADBlockCipher;
-import org.bouncycastle.crypto.modes.GCMBlockCipher;
-import org.bouncycastle.crypto.params.AEADParameters;
-import org.bouncycastle.crypto.params.KeyParameter;
-
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.io.PrintStream;
-import java.net.HttpURLConnection;
-import java.net.URL;
-
-public class Downloader {
-
-    public static void main(String[] args) {
-        if (args.length != 1) {
-            System.err.println("Usage: java -jar ImageDownloader.jar https://url.tld/filename#C0FFEBABE");
-        } else {
-            try {
-                final URL url = new URL(args[0]);
-                OutputStream os = setupOutputStream(new PrintStream(System.out), url.getRef());
-                final HttpURLConnection connection = (HttpURLConnection) url.openConnection();
-                InputStream inputStream = connection.getInputStream();
-                connection.connect();
-                byte[] buffer = new byte[4096];
-                int count;
-				while ((count = inputStream.read(buffer)) != -1) {
-					os.write(buffer, 0, count);
-				}
-            } catch (Exception e) {
-                System.err.println("could not connect to host "+e.getMessage());
-            }
-        }
-    }
-
-    private static OutputStream setupOutputStream(OutputStream os, String reference) {
-        if (reference != null && reference.length() == 96) {
-            byte[] keyAndIv = hexToBytes(reference);
-            byte[] key = new byte[32];
-            byte[] iv = new byte[16];
-            System.arraycopy(keyAndIv, 0, iv, 0, 16);
-            System.arraycopy(keyAndIv, 16, key, 0, 32);
-            AEADBlockCipher cipher = new GCMBlockCipher(new AESEngine());
-            cipher.init(false, new AEADParameters(new KeyParameter(key), 128, iv));
-            return new CipherOutputStream(os, cipher);
-        } else {
-            return os;
-        }
-    }
-
-    private static byte[] hexToBytes(String hex) {
-        int len = hex.length();
-        byte[] array = new byte[len / 2];
-        for (int i = 0; i < len; i += 2) {
-            array[i / 2] = (byte) ((Character.digit(hex.charAt(i), 16) << 4) + Character.digit(hex.charAt(i + 1), 16));
-        }
-        return array;
-    }
-}