Module: Bixby::Agent::Crypto

Included in:
Handshake
Defined in:
lib/bixby-agent/agent/crypto.rb

Instance Method Summary collapse

Instance Method Details

#create_keypair ⇒ Object

create crypto keypair and save in config folder



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# File 'lib/bixby-agent/agent/crypto.rb', line 11

def create_keypair
  init_config_dir()
  pair = OpenSSL::PKey::RSA.generate(2048)
  File.open(private_key_file, 'w') { |out| out.write(pair.to_s) }
end

#crypto_enabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bixby-agent/agent/crypto.rb', line 45

def crypto_enabled?
  b = ENV["BIXBY_NOCRYPTO"]
  !(b and %w{1 true yes}.include? b)
end

#decrypt_from_server(data) ⇒ String

Decrypt data that was encrypted with our public key

Parameters:

  • data (String) —

    Base64 encoded data

Returns:

  • (String) —

    unencrypted data



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# File 'lib/bixby-agent/agent/crypto.rb', line 64

def decrypt_from_server(data)
  data = StringIO.new(data, 'rb')
  uuid = data.readline.strip # TODO throwaway the uuid for now
  Bixby::CryptoUtil.decrypt(data, keypair, server_key)
end

#encrypt_for_server(data) ⇒ String

Encrypt data using the server’s public key

Parameters:

  • data (String) —

    data to encrypt

Returns:

  • (String) —

    Base64 result



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# File 'lib/bixby-agent/agent/crypto.rb', line 55

def encrypt_for_server(data)
  Bixby::CryptoUtil.encrypt(data, self.uuid, server_key, keypair)
end

#have_server_key? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bixby-agent/agent/crypto.rb', line 37

def have_server_key?
  File.exists? server_key_file
end

#keypair ⇒ Object 



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# File 'lib/bixby-agent/agent/crypto.rb', line 21

def keypair
  @keypair ||= OpenSSL::PKey::RSA.new(File.read(private_key_file))
end

#private_key ⇒ Object 



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# File 'lib/bixby-agent/agent/crypto.rb', line 29

def private_key
  keypair
end

#private_key_file ⇒ Object 



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# File 'lib/bixby-agent/agent/crypto.rb', line 17

def private_key_file
  File.join(self.config_dir, "id_rsa")
end

#public_key ⇒ Object 



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# File 'lib/bixby-agent/agent/crypto.rb', line 25

def public_key
  @public_key ||= keypair.public_key
end

#server_key ⇒ Object 



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# File 'lib/bixby-agent/agent/crypto.rb', line 41

def server_key
  @server_key ||= OpenSSL::PKey::RSA.new(File.read(server_key_file))
end

#server_key_file ⇒ Object 



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# File 'lib/bixby-agent/agent/crypto.rb', line 33

def server_key_file
  File.join(self.config_dir, "server.pub")
end