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diff --git a/docs/Group_chats.txt b/docs/Group_chats.txt
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+Massive public group chats.
+
+Everyone generates a short term public private key pair right before joining 
+the chat.
+
+Note that for public group chats it is impossible to protect the chat from 
+being spied on by a very dedicated attacker, encryption is therefor used as a 
+form of spam/access control.
+
+## Joining the chats
+
+
+## Protocol
+
+
+Node format: 
+```
+[char array (node_id), length=32 bytes][ip (in network byte order), length=4 bytes][port (in network byte order), length=2 bytes][Padding , length=2 bytes]
+```
+
+Get nodes (Request):
+Packet contents: 
+```
+[char with a value of 48][Bob's (The reciever's) Public key (client_id) (32 bytes))][Alice's (The sender's) Public key (client_id) (32 bytes)][Random nonce (24 bytes)][Encrypted with the nonce and private key of the sender:[char with a value of 48][random 8 byte (ping_id)]
+```
+Valid replies: a send_nodes packet
+
+Send_nodes (response): 
+```
+[char with a value of 48][Bob's (The reciever's) Public key (client_id) (32 bytes))][Alice's (The sender's) Public key (client_id) (32 bytes)][Random nonce (24 bytes)][Encrypted with the nonce and private key of the sender:[char with a value of 49][random 8 byte (ping_id)][Nodes in node format, length=40 * (number of nodes (maximum of 6 nodes)) bytes]]
+```
+
+Broadcast packet:
+```
+[char with a value of 48][Bob's (The reciever's) Public key (client_id) (32 bytes))][Alice's (The sender's) Public key (client_id) (32 bytes)][nonce][Encrypted with the nonce and private key of the sender:[char with a value of 50][Data to send to everyone]]
+```
+
+
+Data to send to everyone:
+TODO: signing and spam control + permissions.
+[client_id of sender][uint32_t message number][char with a value representing id of message][data]
+
+Note: the message number is increased by 1 for each sent message.
+
+message ids:
+0 - ping
+sent every ~60 seconds by every peer.
+No data.
+
+16 - new_peer
+Tell everyone about a new peer in the chat.
+[uint8_t public_key[public_key_len]]
+
+17 - ban_peer
+Ban a peer
+[uint8_t public_key[public_key_len]]
+
+18 - topic change
+[uint8_t topic[topiclen]]
+
+48 - name change
+[uint8_t name[namelen]]
+
+49 - status change
+[uint8_t (status id)]
+
+64 - chat message
+[uint8_t message[messagelen]]
+
+65 - action (/me)
+[uint8_t message[messagelen]]
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