class Nis::Struct::Message
@attr [String] value @attr [Integer] type @attr [String] payload @attr [String] public_key
Constants
- TYPE_ENCRYPTED
- TYPE_PLAIN
Attributes
private_key[RW]
public_key[RW]
type[R]
value[R]
Public Class Methods
build(attrs)
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# File lib/nis/struct/message.rb, line 13 def self.build(attrs) if attrs[:type] == TYPE_ENCRYPTED new(attrs[:payload], type: :encrypted) end end
new(value = '', type: :plain, private_key: nil, public_key: nil)
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# File lib/nis/struct/message.rb, line 19 def initialize(value = '', type: :plain, private_key: nil, public_key: nil) @value = value @type = (type == :encrypted) ? TYPE_ENCRYPTED : TYPE_PLAIN @private_key = private_key @public_key = public_key end
Public Instance Methods
==(other)
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@return [Boolean]
# File lib/nis/struct/message.rb, line 71 def ==(other) @value == other.value end
bytesize()
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@return [Integer]
# File lib/nis/struct/message.rb, line 51 def bytesize payload.bytesize end
decrypt!()
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# File lib/nis/struct/message.rb, line 33 def decrypt! bin_sk = fix_private_key(@private_key).scan(/../).map(&:hex).reverse.pack('C*') bin_pk = (public_key || @public_key).scan(/../).map(&:hex).pack('C*') @value = Nis::Util::Ed25519.decrypt(bin_sk, bin_pk, payload) @type = TYPE_PLAIN end
encrypt!()
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# File lib/nis/struct/message.rb, line 26 def encrypt! bin_sk = fix_private_key(@private_key).scan(/../).map(&:hex).reverse.pack('C*') bin_pk = (public_key || @public_key).scan(/../).map(&:hex).pack('C*') @value = Nis::Util::Ed25519.encrypt(bin_sk, bin_pk, value) @type = TYPE_ENCRYPTED end
encrypted?()
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@return [Boolean]
# File lib/nis/struct/message.rb, line 41 def encrypted? @type == TYPE_ENCRYPTED end
payload()
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# File lib/nis/struct/message.rb, line 75 def payload (value =~ /\Afe/ || encrypted?) ? value : value.unpack('H*').first end
plain?()
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@return [Boolean]
# File lib/nis/struct/message.rb, line 46 def plain? @type == TYPE_PLAIN end
to_hash()
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@return [Hash]
# File lib/nis/struct/message.rb, line 61 def to_hash { payload: payload, type: @type } end
to_s()
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@return [String]
# File lib/nis/struct/message.rb, line 66 def to_s @value.to_s end
valid?()
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@return [Boolean]
# File lib/nis/struct/message.rb, line 56 def valid? bytesize <= 1024 end
Private Instance Methods
fix_private_key(key)
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# File lib/nis/struct/message.rb, line 81 def fix_private_key(key) "#{'0' * 64}#{key.sub(/^00/i, '')}"[-64, 64] end