Class: Unmagic::Passkeys::WebAuthn::Authenticator::AttestationResponse

Inherits:
Response
  • Object
show all
Defined in:
lib/unmagic/passkeys/web_authn/authenticator/attestation_response.rb

Overview

Action Pack WebAuthn Attestation Response

Handles the authenticator response from a WebAuthn registration ceremony. When a user registers a new credential, the authenticator returns an attestation response containing the new public key and credential ID.

Usage

response = Unmagic::Passkeys::WebAuthn::Authenticator::AttestationResponse.new(
  client_data_json: params[:response][:clientDataJSON],
  attestation_object: params[:response][:attestationObject],
  origin: "https://example.com"
)

response.validate!

# Store the credential
credential_id = response.attestation.credential_id
public_key = response.attestation.public_key

Validation

In addition to the base Response validations, this class verifies:

  • The client data type is “webauthn.create”

  • The attestation format has a registered verifier

  • The attestation statement passes format-specific verification

Instance Attribute Summary collapse

Attributes inherited from Response

#client_data_json, #origin, #user_verification

Instance Method Summary collapse

Methods inherited from Response

#client_data, #relying_party, #validate!

Constructor Details

#initialize(attestation_object:, **attributes) ⇒ AttestationResponse

Returns a new instance of AttestationResponse.



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# File 'lib/unmagic/passkeys/web_authn/authenticator/attestation_response.rb', line 35

def initialize(attestation_object:, **attributes)
  super(**attributes)
  @attestation_object = attestation_object
end

Instance Attribute Details

#attestation_object ⇒ Object (readonly)

Returns the value of attribute attestation_object.



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# File 'lib/unmagic/passkeys/web_authn/authenticator/attestation_response.rb', line 30

def attestation_object
  @attestation_object
end

Instance Method Details

#attestation ⇒ Object

Returns the decoded Attestation object, lazily parsed from the raw attestation object bytes.



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# File 'lib/unmagic/passkeys/web_authn/authenticator/attestation_response.rb', line 42

def attestation
  @attestation ||= Unmagic::Passkeys::WebAuthn::Authenticator::Attestation.wrap(attestation_object)
end

#authenticator_data ⇒ Object

Returns the authenticator data extracted from the attestation object.



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# File 'lib/unmagic/passkeys/web_authn/authenticator/attestation_response.rb', line 47

def authenticator_data
  attestation.authenticator_data
end