Class: OpenPGP::S2K::Iterated

Inherits:
Salted show all
Defined in:
lib/openpgp/s2k.rb

Overview

See Also:

Constant Summary collapse

IDENTIFIER = 
0x03

Constants inherited from OpenPGP::S2K

DEFAULT

Instance Attribute Summary collapse

Attributes inherited from Salted

#salt

Attributes inherited from OpenPGP::S2K

#algorithm, #passphrase

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from OpenPGP::S2K

#digest, #digest_input_with_preload, #identifier, identifier, #to_key, #to_s

Constructor Details

#initialize(passphrase = nil, options = {}, &block) ⇒ Iterated

Returns a new instance of Iterated.



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# File 'lib/openpgp/s2k.rb', line 137

def initialize(passphrase = nil, options = {}, &block)
  super(passphrase, options, &block)

  @count = 65536 unless @count
end

Instance Attribute Details

#count ⇒ Object (readonly)

Returns the value of attribute count.



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# File 'lib/openpgp/s2k.rb', line 135

def count
  @count
end

Class Method Details

.parse(input) ⇒ Object 



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# File 'lib/openpgp/s2k.rb', line 129

def self.parse(input)
  self.new(nil, :algorithm => input.read_byte, :salt => input.read_bytes(8)) do |s2k|
    s2k.count = s2k.decode_count(input.read_byte)
  end
end

Instance Method Details

#digest_input ⇒ Object 



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# File 'lib/openpgp/s2k.rb', line 152

def digest_input
  buffer = Buffer.write do |buffer|
    iterations = count
    while iterations > 0
      buffer << (digest_input = super())
      iterations -= digest_input.size
    end
  end
end

#to_hash ⇒ Object 



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# File 'lib/openpgp/s2k.rb', line 148

def to_hash
  super.merge(:count => count)
end

#write(buffer) ⇒ Object 



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# File 'lib/openpgp/s2k.rb', line 143

def write(buffer)
  super(buffer)
  buffer.write_byte(encode_count(count))
end