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

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