nmode's Git Repositories - signal-cli/blob - src/main/java/org/asamk/signal/manager/util/KeyUtils.java

   1 package org.asamk.signal.manager.util;
   2
   3 import org.asamk.signal.util.RandomUtils;
   4 import org.signal.zkgroup.InvalidInputException;
   5 import org.signal.zkgroup.profiles.ProfileKey;
   6 import org.whispersystems.signalservice.api.kbs.MasterKey;
   7 import org.whispersystems.util.Base64;
   8
   9 public class KeyUtils {
  10
  11     private KeyUtils() {
  12     }
  13
  14     public static String createSignalingKey() {
  15         return getSecret(52);
  16     }
  17
  18     public static ProfileKey createProfileKey() {
  19         try {
  20             return new ProfileKey(getSecretBytes(32));
  21         } catch (InvalidInputException e) {
  22             throw new AssertionError("Profile key is guaranteed to be 32 bytes here");
  23         }
  24     }
  25
  26     public static String createPassword() {
  27         return getSecret(18);
  28     }
  29
  30     public static byte[] createStickerUploadKey() {
  31         return getSecretBytes(32);
  32     }
  33
  34     public static MasterKey createMasterKey() {
  35         return MasterKey.createNew(RandomUtils.getSecureRandom());
  36     }
  37
  38     private static String getSecret(int size) {
  39         byte[] secret = getSecretBytes(size);
  40         return Base64.encodeBytes(secret);
  41     }
  42
  43     public static byte[] getSecretBytes(int size) {
  44         byte[] secret = new byte[size];
  45         RandomUtils.getSecureRandom().nextBytes(secret);
  46         return secret;
  47     }
  48 }