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

   1 package org.asamk.signal.manager.util;
   2
   3 import org.bouncycastle.crypto.generators.Argon2BytesGenerator;
   4 import org.bouncycastle.crypto.params.Argon2Parameters;
   5 import org.whispersystems.signalservice.api.KeyBackupService;
   6 import org.whispersystems.signalservice.api.kbs.HashedPin;
   7 import org.whispersystems.signalservice.internal.registrationpin.PinHasher;
   8
   9 public final class PinHashing {
  10
  11     private PinHashing() {
  12     }
  13
  14     public static HashedPin hashPin(String pin, KeyBackupService.HashSession hashSession) {
  15         final Argon2Parameters params = new Argon2Parameters.Builder(Argon2Parameters.ARGON2_id).withParallelism(1)
  16                 .withIterations(32)
  17                 .withVersion(13)
  18                 .withMemoryAsKB(16 * 1024)
  19                 .withSalt(hashSession.hashSalt())
  20                 .build();
  21
  22         final Argon2BytesGenerator generator = new Argon2BytesGenerator();
  23         generator.init(params);
  24
  25         return PinHasher.hashPin(PinHasher.normalize(pin), password -> {
  26             byte[] output = new byte[64];
  27             generator.generateBytes(password, output);
  28             return output;
  29         });
  30     }
  31 }