Ecosyste.ms: Awesome
An open API service indexing awesome lists of open source software.
https://github.com/soulman-is-good/nodejs-tcpmsgsrv
TCP Server for ecrypted message sharing
https://github.com/soulman-is-good/nodejs-tcpmsgsrv
Last synced: about 1 month ago
JSON representation
TCP Server for ecrypted message sharing
- Host: GitHub
- URL: https://github.com/soulman-is-good/nodejs-tcpmsgsrv
- Owner: soulman-is-good
- Created: 2015-12-18T13:13:54.000Z (about 9 years ago)
- Default Branch: master
- Last Pushed: 2015-12-18T13:15:21.000Z (about 9 years ago)
- Last Synced: 2024-10-12T10:12:08.089Z (2 months ago)
- Language: JavaScript
- Size: 4.88 KB
- Stars: 0
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
Royal Messenger
===================
Royal messenger works via tcp protocol and with encryption **AES-256-CTR** based on _Diffie-Hellman_ algorithm by modp14.
TCP packet structure
----------------------
_Request:_
```
+---------------------+
| Action | 1 byte
+---------------------+
| Session ID | 32 bytes
+---------------------+
| Data section length | 4 byte
+---------------------+
| Data |
| \\\\\ | up to 4Gb of data
+---------------------+
```
_Response:_
```
+---------------------+
| Status | 1 byte
+---------------------+
| Message length | 4 bytes
+---------------------+
| Message | up to 4Gb of data
+---------------------+
```
Packets
----------
### :arrow_right: Authorization
:small_orange_diamond:_Client request:_
+ Action - 0x01
+ Data - must contain client's account (4 bytes) and public key
:small_orange_diamond:_Server response:_
+ Could be either server public key or error code in case of an error
### :arrow_right: ACK package
:small_orange_diamond:_Server request:_
+ Server sends zero byte (0x00) request to test if client is alive
:small_orange_diamond:_Client response:_
Client sends back zero byte with no other fields in packet. If client won't respond in 10 seconds server will destroy this socket and client must reconnect
+ Action - 0x00
### :arrow_right: Basic message
:small_orange_diamond:_Client request:_
+ Action - 0x02
+ Data - encrypted client message in json format
:small_orange_diamond:_JSON message format:_
```json
{
"account": [1, 2, 14, 15],
"message": "message text"
}
```
:small_orange_diamond:_Server response:_
+ Delivery status encrypted in json or error code
:small_orange_diamond:_JSON delivery response format:_
```json
[{
"account": 1,
"status": "delivered"
},
{
"account": 2,
"status": "queued"
},
{
"account": 14,
"status": "error",
"message": "You can't send messages to this account"
},
{
"account": 15,
"status": "receiving",
"message": 1024
}]
```
_on `receiving` event `message` field represents how many bytes have been received already_