Encrypted group communication method

1. A method, comprising:

generating a shared symmetric key to begin a communication session among a group of users by a first user;

distributing, by the first user, the generated shared symmetric key to each user in the group of users;

communicating within the communication session among a group of users, wherein

each user encrypts a message to the group of users to be distributed through the communication session using the generated shared symmetric key, and

each user decrypts a message received from the communication session using the generated shared symmetric key;

wherein additional users are added to the existing communication session when the first user distributes to the additional users the generated shared symmetric key.

2. The method of claim 1 , further comprising changing users within the group of users to reform the communication session among a new group of users comprises:

generating a new shared symmetric key by the first user;

distributing, by the first user, the generated new shared symmetric key to each user in the new group of users;

communicating to the communication session among a new group of users, wherein

each user encrypts a message to the new group of users to be distributed through the communication session using the generated new shared symmetric key, and

each user decrypts a message received from the communication session using the generated new shared symmetric key.