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Contents
require 'base64'
module Aws
module S3
module Encryption
class Materials
# @option options [required, OpenSSL::PKey::RSA, String] :encryption_key
# The master key to use for encrypting/decrypting all objects.
#
# @option options [String<JSON>] :materials_description ('{}')
# The encryption materials description. This is must be
# a JSON document string.
#
# @option options [Symbol] :materials_location (:metadata) Where to
# store the envelope encryption keys. This must be one of
# the following values:
#
# * `:metadata`
# * `:instruction_file`
#
# @option options [String] :instruction_file_suffix ('.instruction')
#
def initialize(options = {})
@key = validate_key(options[:key])
@description = validate_desc(options[:description])
end
# @return [OpenSSL::PKey::RSA, String]
attr_reader :key
# @return [String<JSON>]
attr_reader :description
private
def validate_key(key)
case key
when OpenSSL::PKey::RSA then key
when String
if [32, 24, 16].include?(key.bytesize)
key
else
msg = "invalid key, symmetric key required to be 16, 24, or "
msg << "32 bytes in length, saw length 31"
raise ArgumentError, msg
end
else
msg = "invalid encryption key, expected an OpenSSL::PKey::RSA key "
msg << "(for asymmetric encryption) or a String (for symmetric "
msg << "encryption)."
raise ArgumentError, msg
end
end
def validate_desc(description)
MultiJson.load(description)
description
rescue MultiJson::ParseError
msg = "expected description to be a valid JSON document string"
raise ArgumentError, msg
end
end
end
end
end
Version data entries
19 entries across 19 versions & 1 rubygems