Class: AndroidKeyAttestation::AuthorizationList

Inherits:
Object
  • Object
show all
Defined in:
lib/android_key_attestation/authorization_list.rb

Constant Summary collapse

PURPOSE_TAG =

source.android.com/security/keystore/attestation#attestation-extension

1
ALGORITHM_TAG = 
2
KEY_SIZE_TAG = 
3
DIGEST_TAG = 
5
PADDING_TAG = 
6
EC_CURVE_TAG = 
10
RSA_PUBLIC_EXPONENT_TAG = 
200
ROLLBACK_RESISTANCE_TAG = 
303
ACTIVE_DATE_TIME_TAG = 
400
ORIGINATION_EXPIRE_DATE_TIME_TAG = 
401
USAGE_EXPIRE_DATE_TIME_TAG = 
402
NO_AUTH_REQUIRED_TAG = 
503
USER_AUTH_TYPE_TAG = 
504
AUTH_TIMEOUT_TAG = 
505
ALLOW_WHILE_ON_BODY_TAG = 
506
TRUSTED_USER_PRESENCE_REQUIRED_TAG = 
507
TRUSTED_CONFIRMATION_REQUIRED_TAG = 
508
UNLOCK_DEVICE_REQUIRED_TAG = 
509
ALL_APPLICATIONS_TAG = 
600
APPLICATION_ID_TAG = 
601
CREATION_DATE_TIME_TAG = 
701
ORIGIN_TAG = 
702
ROOT_OF_TRUST_TAG = 
704
OS_VERSION_TAG = 
705
OS_PATCH_LEVEL_TAG = 
706
ATTESTATION_APPLICATION_ID_TAG = 
709
ATTESTATION_ID_BRAND_TAG = 
710
ATTESTATION_ID_DEVICE_TAG = 
711
ATTESTATION_ID_PRODUCT_TAG = 
712
ATTESTATION_ID_SERIAL_TAG = 
713
ATTESTATION_ID_IMEI_TAG = 
714
ATTESTATION_ID_MEID_TAG = 
715
ATTESTATION_ID_MANUFACTURER_TAG = 
716
ATTESTATION_ID_MODEL_TAG = 
717
VENDOR_PATCH_LEVEL_TAG = 
718
BOOT_PATCH_LEVEL_TAG = 
719
PURPOSE_ENUM =

source.android.com/security/keystore/tags

{
  0 => :encrypt,
  1 => :decrypt,
  2 => :sign,
  3 => :verify,
  4 => :derive_key,
  5 => :wrap_key,
}.freeze
ORIGIN_ENUM = 
{
  0 => :generated,
  1 => :derived,
  2 => :imported,
  3 => :unknown,
}.freeze

Instance Method Summary collapse

Constructor Details

#initialize(sequence) ⇒ AuthorizationList

Returns a new instance of AuthorizationList.



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# File 'lib/android_key_attestation/authorization_list.rb', line 59

def initialize(sequence)
  @sequence = sequence
end

Instance Method Details

#all_applications ⇒ Object 



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# File 'lib/android_key_attestation/authorization_list.rb', line 68

def all_applications
  find_boolean(ALL_APPLICATIONS_TAG)
end

#creation_date ⇒ Object 



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# File 'lib/android_key_attestation/authorization_list.rb', line 72

def creation_date
  find_time_milliseconds(CREATION_DATE_TIME_TAG)
end

#find_by_tag(tag) ⇒ Object 



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# File 'lib/android_key_attestation/authorization_list.rb', line 81

def find_by_tag(tag)
  sequence.detect { |data| data.tag == tag }
end

#origin ⇒ Object 



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# File 'lib/android_key_attestation/authorization_list.rb', line 76

def origin
  integer = find_optional_integer(ORIGIN_TAG)
  ORIGIN_ENUM.fetch(integer) if integer
end

#purpose ⇒ Object 



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# File 'lib/android_key_attestation/authorization_list.rb', line 63

def purpose
  integers = find_optional_integer_set(PURPOSE_TAG)
  integers&.map { |i| PURPOSE_ENUM.fetch(i) }
end