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Contents
module RASN1
module Types
# ASN.1 sequence
#
# A sequence is a collection of another ASN.1 types.
#
# To encode this ASN.1 example:
# Record ::= SEQUENCE {
# id INTEGER,
# room [0] INTEGER OPTIONAL,
# house [1] IMPLICIT INTEGER DEFAULT 0
# }
# do:
# seq = RASN1::Types::Sequence.new
# seq.value = [
# RASN1::Types::Integer.new
# RASN1::Types::Integer.new(explicit: 0, optional: true),
# RASN1::Types::Integer.new(implicit: 1, default: 0)
# ]
#
# A sequence may also be used without value to not parse sequence content:
# seq = RASN1::Types::Sequence.new(:seq)
# seq.parse!(der_string)
# seq.value # => String
# @author Sylvain Daubert
class Sequence < Constructed
TAG = 0x10
# @see Base#initialize
def initialize(value_or_options={}, options={})
super
@value ||= []
end
def initialize_copy(other)
super
@value = @value.map { |v| v.dup }
end
private
def value_to_der
case @value
when Array
@value.map { |element| element.to_der }.join
else
@value.to_s
end
end
def der_to_value(der, ber:false)
if @value.is_a?(Array) and !@value.empty?
nb_bytes = 0
@value.each do |element|
nb_bytes += element.parse!(der[nb_bytes..-1])
end
else
@value = der
der.length
end
end
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems