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Contents
# encoding: utf-8
module Backup
module Encryptor
class OpenSSL < Base
##
# The password that'll be used to encrypt the backup. This
# password will be required to decrypt the backup later on.
attr_accessor :password
##
# Determines whether the 'base64' should be used or not
attr_writer :base64
##
# Determines whether the 'salt' flag should be used
attr_writer :salt
##
# Creates a new instance of Backup::Encryptor::OpenSSL and
# sets the password attribute to what was provided
def initialize(&block)
load_defaults!
@base64 ||= false
@salt ||= false
instance_eval(&block) if block_given?
end
##
# Performs the encryption of the backup file
def perform!
log!
run("#{ utility(:openssl) } #{ options } -in '#{ Backup::Model.file }' -out '#{ Backup::Model.file }.enc' -k '#{ password }'")
rm(Backup::Model.file)
Backup::Model.extension += '.enc'
end
private
##
# Backup::Encryptor::OpenSSL uses the 256bit AES encryption cipher.
# 256bit AES is what the US Government uses to encrypt information at the "Top Secret" level.
def options
(['aes-256-cbc'] + base64 + salt).join("\s")
end
##
# Returns '-a' if @base64 is set to 'true'.
# This option will make the encrypted output base64 encoded,
# this makes the encrypted file readable using text editors
def base64
return ['-base64'] if @base64; []
end
##
# Returns '-salt' if @salt is set to 'true'.
# This options adds strength to the encryption
def salt
return ['-salt'] if @salt; []
end
end
end
end
Version data entries
24 entries across 24 versions & 3 rubygems