Pure-rust SSH 2.0 Client

Example: Initiating a fetch from github

```rust use std::net::TcpStream; use coolssh::{createed25519keypair, Connection};

let githubaccountid = "john.doe@gmail.com"; let (opensshencodedpubkey, keypair) = createed25519keypair(githubaccountid);

println!("{}", opensshencodedpubkey); // Add this public key to authorized_keys on your server // -> https://github.com/settings/keys

let stream = TcpStream::connect("github.com:22").unwrap(); let mut conn = Connection::new(stream, ("git", &keypair).into()).unwrap();

// set appropriate read timeout (preferably after authentication): conn.mutatestream(|stream| { let timeout = std::time::Duration::frommillis(200); stream.setreadtimeout(Some(timeout)).unwrap() });

let run = conn.run("git-upload-pack rust-lang/rust.git").unwrap(); ```

Supported SSH Algorithms

• Key Exchange: curve25519-sha256
• Public Keys: ssh-ed25519
• Encryption: aes256-ctr
• MAC: hmac-sha2-256
• Compression: none

Future improvements

• no_std compatibility
• allow receiving more than 4GiB by sending SSHMSGCHANNELWINDOWADJUST when appropriate
• allow multiple commands to run simultaneously (API change)
• server mode

Feel free to submit pull request for these.