- static String computeSafetyNumber(String ownUsername, IdentityKey ownIdentityKey, String theirUsername, IdentityKey theirIdentityKey) {
- // Version 1: E164 user
- // Version 2: UUID user
- Fingerprint fingerprint = new NumericFingerprintGenerator(5200).createFor(1, ownUsername.getBytes(), ownIdentityKey, theirUsername.getBytes(), theirIdentityKey);
+ static String computeSafetyNumber(SignalServiceAddress ownAddress, IdentityKey ownIdentityKey, SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
+ int version;
+ byte[] ownId;
+ byte[] theirId;
+
+ if (BaseConfig.capabilities.isUuid()
+ && ownAddress.getUuid().isPresent() && theirAddress.getUuid().isPresent()) {
+ // Version 2: UUID user
+ version = 2;
+ ownId = UuidUtil.toByteArray(ownAddress.getUuid().get());
+ theirId = UuidUtil.toByteArray(theirAddress.getUuid().get());
+ } else {
+ // Version 1: E164 user
+ version = 1;
+ ownId = ownAddress.getNumber().get().getBytes();
+ theirId = theirAddress.getNumber().get().getBytes();
+ }
+
+ Fingerprint fingerprint = new NumericFingerprintGenerator(5200).createFor(version, ownId, ownIdentityKey, theirId, theirIdentityKey);