1# frozen_string_literal: true
 2
 3module Xml
 4  module Kit
 5    module Crypto
 6      class OaepCipher
 7        ALGORITHM = "#{::Xml::Kit::Namespaces::XMLENC}rsa-oaep-mgf1p"
 8        ALGORITHMS = {
 9          ALGORITHM => true
10        }.freeze
11        attr_reader :algorithm, :key
12
13        def initialize(algorithm, key)
14          @algorithm = algorithm
15          @key = key
16        end
17
18        def self.matches?(algorithm)
19          ALGORITHMS[algorithm]
20        end
21
22        def encrypt(plain_text)
23          @key.public_encrypt(plain_text, padding)
24        end
25
26        def decrypt(cipher_text)
27          @key.private_decrypt(cipher_text, padding)
28        end
29
30        private
31
32        def padding
33          OpenSSL::PKey::RSA::PKCS1_OAEP_PADDING
34        end
35      end
36    end
37  end
38end