HrrRbSsh is a robust implementation of an SSH 2.0 server and client written entirely in Ruby. This library allows developers to easily establish secure SSH connections, enabling the creation of custom SSH servers and clients with an array of authentication options that bolster security and usability.

Key Features

• Easy SSH Server Creation: Quickly develop your own SSH server with minimal setup using the intuitive API. Leverage standard and custom authentication methods to enhance security.
• SSH Client Functionality: Experiment with client functionalities to make remote connections and execute commands seamlessly.
• Flexible Authentication: Supports multiple authentication methods, including:
  • Password authentication
  • Public key authentication
  • Keyboard-interactive authentication
  • Customizable Strategies: Implement single or multi-step authentication processes with ease.
• Extensive Logging: Option to enable detailed logging for monitoring communication, ensuring transparency while handling sensitive data.
• Configuration Options: Define preferred algorithms for encryption, key exchange, and authentication to suit your security requirements.

Easy Usage

To get started, simply require the library in your Ruby application:

dgem 'hrr_rb_ssh'
require 'hrr_rb_ssh'

Example: Writing a Standard SSH Server

Below is a quick example of how to start a simple SSH server:

server = TCPServer.new(10022)
loop do
  Thread.new(server.accept) do |io|
    begin
      ssh_server = HrrRbSsh::Server.new(options)
      ssh_server.start(io)
    ensure
      io.close
    end
  end
end

Developing an SSH Client (Experimental)

To initiate a connection with an SSH server:

HrrRbSsh::Client.start(target, options) do |conn|
  conn.exec "your_command_here"
end

Supported Protocol Features

• Connection Layer: Create sessions that support shell requests, exec commands, and subsystem requests.
• Authentication Layer: Choose from a variety of authentication mechanisms to secure access.
• Transport Layer: Define encryption and MAC algorithms to optimize data confidentiality and integrity during transmission.

Whether you’re building a quick prototype or a production-ready application, HrrRbSsh empowers you to implement SSH functionality seamlessly, making it an ideal choice for developers looking for a pure Ruby solution. For detailed documentation, visit the project's GitHub page.