Examples with UserKeys im.actor.core.modules.encryption.entity.UserKeys used on opensource projects

Example 1 with UserKeys

use of im.actor.core.modules.encryption.entity.UserKeys in project actor-platform by actorapp.

the class KeyManagerActor method fetchUserGroups.

// 
// User keys fetching
// 
/**
 * Fetching all user's key groups
 *
 * @param uid User's id
 */
private Promise<UserKeys> fetchUserGroups(final int uid) {
    User user = users().getValue(uid);
    if (user == null) {
        throw new RuntimeException("Unable to find user #" + uid);
    }
    final UserKeys userKeys = getCachedUserKeys(uid);
    if (userKeys != null) {
        return Promise.success(userKeys);
    }
    return api(new RequestLoadPublicKeyGroups(new ApiUserOutPeer(uid, user.getAccessHash()))).map(new Function<ResponsePublicKeyGroups, ArrayList<UserKeysGroup>>() {

        @Override
        public ArrayList<UserKeysGroup> apply(ResponsePublicKeyGroups response) {
            ArrayList<UserKeysGroup> keysGroups = new ArrayList<>();
            for (ApiEncryptionKeyGroup keyGroup : response.getPublicKeyGroups()) {
                UserKeysGroup validatedKeysGroup = validateUserKeysGroup(uid, keyGroup);
                if (validatedKeysGroup != null) {
                    keysGroups.add(validatedKeysGroup);
                }
            }
            return keysGroups;
        }
    }).map(new Function<ArrayList<UserKeysGroup>, UserKeys>() {

        @Override
        public UserKeys apply(ArrayList<UserKeysGroup> userKeysGroups) {
            UserKeys userKeys = new UserKeys(uid, userKeysGroups.toArray(new UserKeysGroup[userKeysGroups.size()]));
            cacheUserKeys(userKeys);
            return userKeys;
        }
    });
}

Example 2 with UserKeys

use of im.actor.core.modules.encryption.entity.UserKeys in project actor-platform by actorapp.

the class KeyManagerActor method onPublicKeysGroupAdded.

// 
// Keys updates handling
// 
/**
 * Handler for adding new key group
 *
 * @param uid      User's id
 * @param keyGroup Added key group
 */
private void onPublicKeysGroupAdded(int uid, ApiEncryptionKeyGroup keyGroup) {
    UserKeys userKeys = getCachedUserKeys(uid);
    if (userKeys == null) {
        return;
    }
    UserKeysGroup validatedKeysGroup = validateUserKeysGroup(uid, keyGroup);
    if (validatedKeysGroup != null) {
        UserKeys updatedUserKeys = userKeys.addUserKeyGroup(validatedKeysGroup);
        cacheUserKeys(updatedUserKeys);
        context().getEncryption().getEncryptedChatManager(uid).send(new EncryptedPeerActor.KeyGroupUpdated(userKeys));
    }
}

Example 3 with UserKeys

use of im.actor.core.modules.encryption.entity.UserKeys in project actor-platform by actorapp.

the class KeyManagerActor method onPublicKeysGroupRemoved.

/**
 * Handler for removing key group
 *
 * @param uid        User's id
 * @param keyGroupId Removed key group id
 */
private void onPublicKeysGroupRemoved(int uid, int keyGroupId) {
    UserKeys userKeys = getCachedUserKeys(uid);
    if (userKeys == null) {
        return;
    }
    UserKeys updatedUserKeys = userKeys.removeUserKeyGroup(keyGroupId);
    cacheUserKeys(updatedUserKeys);
    context().getEncryption().getEncryptedChatManager(uid).send(new EncryptedPeerActor.KeyGroupUpdated(userKeys));
}

Example 4 with UserKeys

use of im.actor.core.modules.encryption.entity.UserKeys in project actor-platform by actorapp.

the class KeyManagerActor method fetchUserPreKey.

/**
 * Fetching user's pre key by key id
 *
 * @param uid        User's id
 * @param keyGroupId User's key group id
 * @param keyId      Key id
 */
private Promise<PublicKey> fetchUserPreKey(final int uid, final int keyGroupId, final long keyId) {
    User user = users().getValue(uid);
    if (user == null) {
        throw new RuntimeException("Unable to find user #" + uid);
    }
    return pickUserGroup(uid, keyGroupId).flatMap(new Function<Tuple2<UserKeysGroup, UserKeys>, Promise<PublicKey>>() {

        @Override
        public Promise<PublicKey> apply(final Tuple2<UserKeysGroup, UserKeys> keysGroup) {
            for (PublicKey p : keysGroup.getT1().getEphemeralKeys()) {
                if (p.getKeyId() == keyId) {
                    return Promise.success(p);
                }
            }
            // 
            // Downloading pre key
            // 
            ArrayList<Long> ids = new ArrayList<Long>();
            ids.add(keyId);
            final UserKeysGroup finalKeysGroup = keysGroup.getT1();
            return api(new RequestLoadPublicKey(new ApiUserOutPeer(uid, getUser(uid).getAccessHash()), keyGroupId, ids)).map(new Function<ResponsePublicKeys, PublicKey>() {

                @Override
                public PublicKey apply(ResponsePublicKeys responsePublicKeys) {
                    if (responsePublicKeys.getPublicKey().size() == 0) {
                        throw new RuntimeException("Unable to find public key on server");
                    }
                    ApiEncryptionKeySignature sig = null;
                    for (ApiEncryptionKeySignature s : responsePublicKeys.getSignatures()) {
                        if (s.getKeyId() == keyId && "Ed25519".equals(s.getSignatureAlg())) {
                            sig = s;
                            break;
                        }
                    }
                    if (sig == null) {
                        throw new RuntimeException("Unable to find public key on server");
                    }
                    ApiEncryptionKey key = responsePublicKeys.getPublicKey().get(0);
                    byte[] keyHash = RatchetKeySignature.hashForSignature(key.getKeyId(), key.getKeyAlg(), key.getKeyMaterial());
                    if (!Curve25519.verifySignature(keysGroup.getT1().getIdentityKey().getPublicKey(), keyHash, sig.getSignature())) {
                        throw new RuntimeException("Key signature does not isMatch");
                    }
                    PublicKey pkey = new PublicKey(keyId, key.getKeyAlg(), key.getKeyMaterial());
                    UserKeysGroup userKeysGroup = finalKeysGroup.addPublicKey(pkey);
                    cacheUserKeys(keysGroup.getT2().removeUserKeyGroup(userKeysGroup.getKeyGroupId()).addUserKeyGroup(userKeysGroup));
                    return pkey;
                }
            });
        }
    });
}

Example 5 with UserKeys

use of im.actor.core.modules.encryption.entity.UserKeys in project actor-platform by actorapp.

the class KeyManagerActor method fetchUserPreKey.

/**
 * Fetching user's random pre key
 *
 * @param uid        User's id
 * @param keyGroupId User's key group id
 */
private Promise<PublicKey> fetchUserPreKey(final int uid, final int keyGroupId) {
    return pickUserGroup(uid, keyGroupId).flatMap(new Function<Tuple2<UserKeysGroup, UserKeys>, Promise<PublicKey>>() {

        @Override
        public Promise<PublicKey> apply(final Tuple2<UserKeysGroup, UserKeys> keyGroups) {
            return api(new RequestLoadPrePublicKeys(new ApiUserOutPeer(uid, getUser(uid).getAccessHash()), keyGroupId)).map(new Function<ResponsePublicKeys, PublicKey>() {

                @Override
                public PublicKey apply(ResponsePublicKeys response) {
                    if (response.getPublicKey().size() == 0) {
                        throw new RuntimeException("User doesn't have pre keys");
                    }
                    ApiEncryptionKey key = response.getPublicKey().get(0);
                    ApiEncryptionKeySignature sig = null;
                    for (ApiEncryptionKeySignature s : response.getSignatures()) {
                        if (s.getKeyId() == key.getKeyId() && "Ed25519".equals(s.getSignatureAlg())) {
                            sig = s;
                            break;
                        }
                    }
                    if (sig == null) {
                        throw new RuntimeException("Unable to find public key on server");
                    }
                    byte[] keyHash = RatchetKeySignature.hashForSignature(key.getKeyId(), key.getKeyAlg(), key.getKeyMaterial());
                    if (!Curve25519.verifySignature(keyGroups.getT1().getIdentityKey().getPublicKey(), keyHash, sig.getSignature())) {
                        throw new RuntimeException("Key signature does not isMatch");
                    }
                    return new PublicKey(key.getKeyId(), key.getKeyAlg(), key.getKeyMaterial());
                }
            });
        }
    });
}