class OpenSSL::PKey::DH

  1. lib/net/ssh/transport/openssl.rb
Parent: PKey

This class is originally defined in the OpenSSL module. As needed, methods have been added to it by the Net::SSH module for convenience in dealing with SSH functionality.

Methods

Public Instance

  1. valid?

Public Instance methods

valid? ()

Determines whether the pub_key for this key is valid. (This algorithm lifted more-or-less directly from OpenSSH, dh.c, dh_pub_is_valid.)

[show source] 
# File lib/net/ssh/transport/openssl.rb, line 42
def valid?
  return false if pub_key.nil? || pub_key < 0
  bits_set = 0
  pub_key.num_bits.times { |i| bits_set += 1 if pub_key.bit_set?(i) }
  return ( bits_set > 1 && pub_key < p )
end