From 73726b3aa42f272d78044d2725e6fc6d804f67d0 Mon Sep 17 00:00:00 2001 From: Pablu23 Date: Fri, 8 Dec 2023 20:53:47 +0100 Subject: [PATCH] Readme and Protocol changes --- protocol.md | 12 +++++++++--- readme.md | 2 +- 2 files changed, 10 insertions(+), 4 deletions(-) diff --git a/protocol.md b/protocol.md index c966275..3d51b64 100644 --- a/protocol.md +++ b/protocol.md @@ -13,15 +13,21 @@ 8. If Client has all packets, or retries has exceeded limit. Client sends Ack Packet for last Sync 9. Client and Server "close" / forget the connection + +### RSA Packet +8 Byte Session ID | 4 Byte Encrypted Data Length | Encrypted Data (Symmetric Key) + ### Secure Header | Unencrypted -1 Byte RSA Flag | 24 Byte Nonce | 8 Byte Session ID | 4 Byte Encrypted Data Length +24 Byte Nonce | 8 Byte Session ID | 4 Byte Encrypted Data Length ### Packet Header | Encrypted 1 Byte Header Type Flag | 4 Byte Sync ### Packet Structure -37 Byte Secure Header | 5 Byte Packet Header | <= 446 Byte Data | 16 Byte chacha20poly1305 overhead - | ---------------ENCRYPTED--------------- | +| 36 Byte | 5 Byte | <= 487 Byte | 16 Byte | +| :------:|:------:|:-----------:|:-------------------------------------:| +| Secure Header | Packet Header | Data | chacha20poly1305 overhead | +| | Encrypted | Encrypted | | ### Data diff --git a/readme.md b/readme.md index 1e6e318..d0236a0 100644 --- a/readme.md +++ b/readme.md @@ -1,6 +1,6 @@ # Simple UDP File transfer -A udp File transfer "Suite" +A udp File transfer "Suite" with TCP Connection establishment ## Points that might or might not get looked at: - Performance Improvements (right now on my PC ~400 Mbit/s Throughput allocated to all requesting clients, localhost / not Network bound)