Class: Cript::Cripter

Inherits:
Object
  • Object
show all
Defined in:
lib/cript/cripter.rb

Overview

Cript::Cripter is an abstract class for encryption implementations using RSA keys.

Direct Known Subclasses

Naive, Simple

Defined Under Namespace

Classes: Error

Instance Method Summary collapse

Constructor Details

#initialize(opts = {}) ⇒ Cripter

Build a new cripter

opts: public_key_content private_key_content public_key_path private_key_path passphrase



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# File 'lib/cript/cripter.rb', line 21

def initialize(opts = {})
  @opts = opts

  # Attempt to use the private key at the default location
  # if exists and not otherwise specified
  unless [:private_key_content, :private_key_path].any? { |o| @opts[o] }
    if File.file?("#{ENV['HOME']}/.ssh/id_rsa")
      @opts[:private_key_path] = "#{ENV['HOME']}/.ssh/id_rsa"
    end
  end

  if @opts[:private_key_content]
    @private_key = OpenSSL::PKey::RSA.new(*[@opts[:private_key_content], @opts.delete(:passphrase)])
  elsif @opts[:private_key_path] && File.file?(@opts[:private_key_path])
    @private_key = OpenSSL::PKey::RSA.new(*[File.read(@opts[:private_key_path]), @opts.delete(:passphrase)])
  end

  if @private_key
    @public_key = @private_key.public_key
  else
    if @opts[:public_key_content]
      @public_key = OpenSSL::PKey::RSA.new(@opts[:public_key_content])
    elsif @opts[:public_key_path] && File.file?(@opts[:public_key_path])
      @public_key = OpenSSL::PKey::RSA.new(File.read(@opts[:public_key_path]))
    elsif File.file?("#{ENV['HOME']}/.ssh/id_rsa.pub")
      @public_key = OpenSSL::PKey::RSA.new(File.read("#{ENV['HOME']}/.ssh/id_rsa.pub"))
    end
  end
end

Instance Method Details

#decrypt(message) ⇒ Object

Raises:



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# File 'lib/cript/cripter.rb', line 59

def decrypt(message)
  raise Cript::Cripter::Error, "Implement me"
end

#echo(message) ⇒ Object 



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# File 'lib/cript/cripter.rb', line 63

def echo(message)
  decrypt(encrypt(message))
end

#encrypt(message) ⇒ Object

Raises:



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# File 'lib/cript/cripter.rb', line 55

def encrypt(message)
  raise Cript::Cripter::Error, "Implement me"
end

#inspect ⇒ Object 



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# File 'lib/cript/cripter.rb', line 51

def inspect
  "#<#{self.class.name}>"
end