class Net::SSH::Transport::Kex::DiffieHellmanGroup1SHA1

A key-exchange service implementing the “diffie-hellman-group1-sha1” key-exchange algorithm.

Constants

G: The group constant
P_r: The radix in which P_s represents the value of P
P_s: The value of ‘P’, as a string, in hexadecimal

Attributes

algorithms [R]

connection [R]

data [R]

dh [R]

digester [R]

g [R]

p [R]

Public Class Methods

new (algorithms, connection, data)

Source

# File lib/net/ssh/transport/kex/diffie_hellman_group1_sha1.rb, line 46
def initialize(algorithms, connection, data)
  @p = get_p
  @g = get_g

  @digester = OpenSSL::Digest::SHA1
  @algorithms = algorithms
  @connection = connection

  @data = data.dup
  @dh = generate_key
  @logger = @data.delete(:logger)
end

Create a new instance of the DiffieHellmanGroup1SHA1 algorithm. The data is a Hash of symbols representing information required by this algorithm, which was acquired during earlier processing.

Public Instance Methods

exchange_keys ()

Source

# File lib/net/ssh/transport/kex/diffie_hellman_group1_sha1.rb, line 70
def exchange_keys
  result = send_kexinit
  verify_server_key(result[:server_key])
  session_id = verify_signature(result)
  confirm_newkeys

  return { session_id: session_id,
           server_key: result[:server_key],
           shared_secret: result[:shared_secret],
           hashing_algorithm: digester }
end

Perform the key-exchange for the given session, with the given data. This method will return a hash consisting of the following keys:

:session_id
:server_key
:shared_secret
:hashing_algorithm

The caller is expected to be able to understand how to use these deliverables.