Class: RASN2::Types::ObjectId

Inherits:
Primitive show all
Defined in:
lib/rasn2/types/object_id.rb

Overview

ASN.1 Object ID

Author:

  • Sylvain Daubert

  • LemonTree55

Constant Summary collapse

ID =

ObjectId id value

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Constants inherited from Primitive

Primitive::ASN1_PC

Constants inherited from Base

Base::CLASSES, Base::CLASS_MASK, Base::INDEFINITE_LENGTH, Base::MULTI_OCTETS_ID

Instance Attribute Summary

Attributes inherited from Base

#asn1_class, #default, #model, #name, #options

Instance Method Summary collapse

Methods inherited from Base

#==, #asn1_class_to_s, #attributes, #bin2hex, #build, #can_build?, #check_id, #colorize, #common_inspect, constrained?, #constructed?, #der2name, #do_parse, #do_parse_explicit, #do_parse_explicit_with_tracing, #do_parse_with_tracing, #encode_identifier_octets, #encode_size, encoded_type, #explicit?, #explicit_type, #find_type, #get_data, #get_length, #id, #id2octets, #id_value, #implicit?, #indent, #initialize, #initialize_copy, #inspect, #inspect_value, #msg_type, #optional?, parse, #parse!, #pc_bit, #primitive?, #private?, #raise_id_error, #raise_on_indefinite_length, #self2name, #set_class, #set_default, #set_optional, #set_tag, #set_value, #specific_initializer, start_tracing, stop_tracing, #tag_id_to_integer, #tagged?, #to_der, #trace, #trace_data, #trace_real, #tracer, type, #type, #universal?, #unpack, #unsigned_to_chained_octets, #value, #value=, #value?, #value_size, #void_value

Methods included from Helpers::Colorize

#begin_colorizer, #brace_surround, #colorize, #colorize_attribute, #colorize_bool, #colorize_class, #colorize_default, #colorize_enum, #colorize_id, #colorize_name, #colorize_nil, #colorize_value, #colorizer, #colorizer=, #end_colorizer, #int_with_hex, #length_specifier, #parens_hex

Constructor Details

This class inherits a constructor from RASN2::Types::Base

Instance Method Details

#der_to_value(der, ber: false) ⇒ void

This method returns an undefined value.

Make object id value from der string

Parameters:

  • der (String)
  • ber (::Boolean) (defaults to: false) 


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# File 'lib/rasn2/types/object_id.rb', line 16

def der_to_value(der, ber: false) # rubocop:disable Lint/UnusedMethodArgument
  bytes = der.unpack('C*')

  ids = []
  current_id = 0
  bytes.each do |byte|
    current_id = (current_id << 7) | (byte & 0x7f)
    if byte.nobits?(0x80)
      ids << current_id
      current_id = 0
    end
  end

  first_id = [2, ids.first / 40].min
  second_id = ids.first - first_id * 40
  ids[0..0] = [first_id, second_id]

  @value = ids.join('.')
end