Sha256: 5064960ff357f050a039dce86f0e64e6b8ae8fb2ef78ccf6d606d4ce96dc52c4
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Versions: 6
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Stored size: 1.82 KB
Contents
require 'cryptic/exceptions'
require 'fileutils'
require 'openssl'
module Cryptic
# Allow the use of shorthand error handling
include Cryptic::Exceptions
# A class that represents a private and public keypair
#
# @!attribute [String] private_key the contents of the private key file
# @!attribute [String] public_key the contents of the public key file
# @author Erran Carey <me@errancarey.com>
class Keypair
attr_reader :private_key
attr_reader :public_key
# Creates a keypair to be saved with #save
#
# @param [Fixnum] size the amount of bits to use in your key
# @return [Keypair] an object representing a private/public keypair
def initialize(passphrase = nil, size = 2048)
@saved = false
attempts ||= 0
attempts += 1
rsa_key = OpenSSL::PKey::RSA.new(size)
cipher = OpenSSL::Cipher::AES256.new(:CBC)
@private_key = rsa_key.to_pem(cipher, passphrase)
@public_key = rsa_key.public_key.to_pem
rescue OpenSSL::PKey::RSAError => e
if e.message =~ /^read key$/
retry unless attempts > 1
else
raise e
end
end
# Save the file
#
# @param [String] path the path to save the keypair into
# @todo Document what save may raise
# @return [String] returns the path files were saved to
def save(path = '.')
if @private_key.to_s.eql?('') || @public_key.to_s.eql?('')
raise Cryptic::KeyGenerationFailure, "The keypair was never successfully generated"
end
FileUtils.mkdir_p(File.dirname(path))
File.open("#{File.expand_path(path)}/cryptic_private.pem", 'w') do |file|
file.write @private_key
end
File.open("#{File.expand_path(path)}/cryptic_public.pem", 'w') do |file|
file.write @public_key
end
@saved = true
path
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems