# `Cmsex.AuthenticatedData`
[🔗](https://github.com/openspb/cmsex/blob/v0.1.0/lib/cmsex/authenticated_data.ex#L1)

An AuthenticatedData message, as `Cmsex.decode/2` reads it (RFC 5652, 9):
a content and a MAC over it, with the MAC key sent to each recipient as
in EnvelopedData. The content is not encrypted. `Cmsex.verify_mac/2`
checks it.

Fields:

  * `:version` - the version written in the message.
  * `:recipient_infos` - the recipients, a list of `Cmsex.RecipientInfo`.
  * `:mac_algorithm` - the name of the MAC algorithm, such as
    `:hmac_sha256`, or its OID.
  * `:digest_algorithm` - the name of the digest algorithm of the
    message-digest attribute, or `nil` when there are no authenticated
    attributes.
  * `:content_type` - the type of the content, as a name of `Cmsex.OID`
    or an OID.
  * `:content` - the content, or `nil` when it is not in the message.
  * `:pkcs7_content` - as in `Cmsex.SignedData`.
  * `:certificates`, `:other_certificates`, `:crls`, `:other_crls` - the
    OriginatorInfo, empty when it is absent.
  * `:authenticated_attributes` - the attributes the MAC covers, a list
    of `Cmsex.Attribute`, or `nil`.
  * `:mac` - the MAC.
  * `:unauthenticated_attributes` - attributes the MAC does not cover,
    empty when there are none.
  * `:deviations` - `:auth_data_version` when the version is not the one
    the fields call for. The recipients have their own.

# `t`

```elixir
@type t() :: %Cmsex.AuthenticatedData{
  authenticated_attributes: [Cmsex.Attribute.t()] | nil,
  certificates: [binary()],
  content: binary() | nil,
  content_type: atom() | tuple(),
  crls: [binary()],
  deviations: [atom()],
  digest_algorithm: atom() | tuple() | nil,
  mac: binary(),
  mac_algorithm: atom() | tuple(),
  other_certificates: [binary()],
  other_crls: [binary()],
  pkcs7_content: binary() | nil,
  raw: map() | nil,
  recipient_infos: [Cmsex.RecipientInfo.t()],
  unauthenticated_attributes: [Cmsex.Attribute.t()],
  version: integer()
}
```

---

*Consult [api-reference.md](api-reference.md) for complete listing*