Class: Cheffish::KeyFormatter

Inherits:
Object
  • Object
show all
Defined in:
lib/cheffish/key_formatter.rb

Class Method Summary collapse

Class Method Details

.decode(str, pass_phrase = nil, filename = '') ⇒ Object

Returns nil or key, format



10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
 
# File 'lib/cheffish/key_formatter.rb', line 10

def self.decode(str, pass_phrase=nil, filename='')
  key_format = {}
  key_format[:format] = format_of(str)

  case key_format[:format]
  when :openssh
    key = decode_openssh_key(str, filename)
  else
    begin
      key = OpenSSL::PKey.read(str) { pass_phrase }
    rescue
      return nil
    end
  end

  key_format[:type] = type_of(key)
  key_format[:size] = size_of(key)
  key_format[:pass_phrase] = pass_phrase if pass_phrase
  # TODO cipher, exponent

  [key, key_format]
end

.encode(key, key_format) ⇒ Object 



33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
 
# File 'lib/cheffish/key_formatter.rb', line 33

def self.encode(key, key_format)
  format = key_format[:format] || :pem
  case format
  when :openssh
    encode_openssh_key(key)
  when :pem
    if key_format[:pass_phrase]
      cipher = key_format[:cipher] || 'DES-EDE3-CBC'
      key.to_pem(OpenSSL::Cipher.new(cipher), key_format[:pass_phrase])
    else
      key.to_pem
    end
  when :der
    key.to_der
  when :fingerprint
    hexes = Digest::MD5.hexdigest(key.to_der)
    # Put : between every pair of hexes
    hexes.scan(/../).join(':')
  else
    raise "Unrecognized key format #{format}"
  end
end