Работа над расшифровкой TLS

src/main/java/ru/serega6531/packmate/utils/PacketUtils.java

@@ -4,6 +4,7 @@ import lombok.experimental.UtilityClass;
 import org.apache.commons.lang3.ArrayUtils;
 import ru.serega6531.packmate.model.Packet;
 
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Optional;
 
@@ -16,4 +17,29 @@ public class PacketUtils {
                 .reduce(ArrayUtils::addAll);
     }
 
+    public List<List<Packet>> sliceToSides(List<Packet> packets) {
+        List<List<Packet>> result = new ArrayList<>();
+        List<Packet> side = new ArrayList<>();
+        boolean incoming = true;
+
+        for (Packet packet : packets) {
+            if(packet.isIncoming() != incoming) {
+                incoming = packet.isIncoming();
+
+                if(!side.isEmpty()) {
+                    result.add(side);
+                    side = new ArrayList<>();
+                }
+            }
+
+            side.add(packet);
+        }
+
+        if(!side.isEmpty()) {
+            result.add(side);
+        }
+
+        return result;
+    }
+
 }

src/main/java/ru/serega6531/packmate/utils/SSLUtils.java

@@ -0,0 +1,54 @@
+package ru.serega6531.packmate.utils;
+
+import com.google.common.base.Splitter;
+import lombok.SneakyThrows;
+
+import javax.net.ssl.KeyManagerFactory;
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.TrustManagerFactory;
+import java.io.File;
+import java.io.FileInputStream;
+import java.security.KeyStore;
+
+import static com.google.common.base.Preconditions.checkState;
+
+public class SSLUtils {
+
+    @SneakyThrows
+    public static SSLContext createContext(File pemFile, File keyFile) {
+        final String pass = "abcdef";
+
+        File jksKeystoreFile = File.createTempFile("packmate_", ".jks");
+        File pkcsKeystoreFile = File.createTempFile("packmate_", ".pkcs12");
+        Splitter splitter = Splitter.on(' ');
+
+        jksKeystoreFile.delete();
+
+        String command = "openssl pkcs12 -export -out " + pkcsKeystoreFile.getAbsolutePath() + " -in " + pemFile.getAbsolutePath() +
+                " -inkey " + keyFile.getAbsolutePath() + " -passout pass:" + pass;
+
+        Process process = new ProcessBuilder(splitter.splitToList(command)).inheritIO().start();
+        checkState(process.waitFor() == 0);
+
+        command = "keytool -importkeystore -srckeystore " + pkcsKeystoreFile.getAbsolutePath() + " -srcstoretype PKCS12 -destkeystore " +
+                jksKeystoreFile.getAbsolutePath() + " -srcstorepass " + pass + " -deststorepass " + pass;
+
+        process = new ProcessBuilder(splitter.splitToList(command)).inheritIO().start();
+        checkState(process.waitFor() == 0);
+
+        KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
+        keystore.load(new FileInputStream(jksKeystoreFile), pass.toCharArray());
+
+        KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
+        keyManagerFactory.init(keystore, pass.toCharArray());
+
+        SSLContext ret = SSLContext.getInstance("TLSv1.2");
+        TrustManagerFactory factory = TrustManagerFactory.getInstance(
+                TrustManagerFactory.getDefaultAlgorithm());
+        factory.init(keystore);
+        ret.init(keyManagerFactory.getKeyManagers(), factory.getTrustManagers(), null);
+
+        return ret;
+    }
+
+}