1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
# frozen_string_literal: true
require "cose/recipient"
require "cose/mac0"
module COSE
class Mac < Mac0
CONTEXT = "MAC"
attr_reader :recipients
def self.keyword_arguments_for_initialize(decoded)
super.merge(recipients: decoded.last.map { |r| COSE::Recipient.from_array(r) })
end
def self.tag
97
end
def initialize(recipients:, **keyword_arguments)
super(**keyword_arguments)
@recipients = recipients
end
def verify(key, external_aad = nil)
recipient = recipients.detect { |r| r.headers.kid == key.kid }
if recipient
super
else
raise(COSE::Error, "No recipient match the key")
end
end
private
def context
CONTEXT
end
end
end
|
