Examples with ClientZkGroupCipher org.signal.zkgroup.groups.ClientZkGroupCipher used on opensource projects

Example 1 with ClientZkGroupCipher

use of org.signal.zkgroup.groups.ClientZkGroupCipher in project Signal-Android by WhisperSystems.

the class GroupManagerV2 method getUuidCipherTexts.

@WorkerThread
@NonNull
Map<UUID, UuidCiphertext> getUuidCipherTexts(@NonNull GroupId.V2 groupId) {
    GroupDatabase.GroupRecord groupRecord = SignalDatabase.groups().requireGroup(groupId);
    GroupDatabase.V2GroupProperties v2GroupProperties = groupRecord.requireV2GroupProperties();
    GroupMasterKey groupMasterKey = v2GroupProperties.getGroupMasterKey();
    ClientZkGroupCipher clientZkGroupCipher = new ClientZkGroupCipher(GroupSecretParams.deriveFromMasterKey(groupMasterKey));
    List<Recipient> recipients = v2GroupProperties.getMemberRecipients(GroupDatabase.MemberSet.FULL_MEMBERS_INCLUDING_SELF);
    Map<UUID, UuidCiphertext> uuidCipherTexts = new HashMap<>();
    for (Recipient recipient : recipients) {
        uuidCipherTexts.put(recipient.requireServiceId().uuid(), clientZkGroupCipher.encryptUuid(recipient.requireServiceId().uuid()));
    }
    return uuidCipherTexts;
}

Example 2 with ClientZkGroupCipher

use of org.signal.zkgroup.groups.ClientZkGroupCipher in project Signal-Android by WhisperSystems.

the class GroupsV2Api method uploadAvatar.

public String uploadAvatar(byte[] avatar, GroupSecretParams groupSecretParams, GroupsV2AuthorizationString authorization) throws IOException {
    AvatarUploadAttributes form = socket.getGroupsV2AvatarUploadForm(authorization.toString());
    byte[] cipherText;
    try {
        cipherText = new ClientZkGroupCipher(groupSecretParams).encryptBlob(GroupAttributeBlob.newBuilder().setAvatar(ByteString.copyFrom(avatar)).build().toByteArray());
    } catch (VerificationFailedException e) {
        throw new AssertionError(e);
    }
    socket.uploadGroupV2Avatar(cipherText, form);
    return form.getKey();
}