Class: Neb::PrivateKey

Inherits:
Object
  • Object
show all
Defined in:
lib/neb/private_key.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(raw) ⇒ PrivateKey

Returns a new instance of PrivateKey.



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# File 'lib/neb/private_key.rb', line 8

def initialize(raw)
  @raw = raw
end

Instance Attribute Details

#raw ⇒ Object (readonly)

Returns the value of attribute raw.



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# File 'lib/neb/private_key.rb', line 6

def raw
  @raw
end

Class Method Details

.random ⇒ Object 



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# File 'lib/neb/private_key.rb', line 85

def random
  new(Utils.random_bytes)
end

Instance Method Details

#decode(fmt = nil) ⇒ Object 



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# File 'lib/neb/private_key.rb', line 35

def decode(fmt = nil)
  fmt ||= format

  case fmt
  when :decimal
    raw
  when :bin
    BaseConvert.decode(raw, 256)
  when :bin_compressed
    BaseConvert.decode(raw[0, 32], 256)
  when :hex
    BaseConvert.decode(raw, 16)
  when :hex_compressed
    BaseConvert.decode(raw[0, 64], 16)
  else
    raise ArgumentError, "WIF does not represent privkey"
  end
end

#encode(fmt) ⇒ Object 



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# File 'lib/neb/private_key.rb', line 16

def encode(fmt)
  return self.class.new(value).encode(fmt) unless raw.is_a?(Numeric)

  case fmt
  when :decimal
    raw
  when :bin
    BaseConvert.encode(raw, 256, 32)
  when :bin_compressed
    "#{BaseConvert.encode(raw, 256, 32)}\x01"
  when :hex
    BaseConvert.encode(raw, 16, 64)
  when :hex_compressed
    "#{BaseConvert.encode(raw, 16, 64)}01"
  else
    raise ArgumentError, "invalid format: #{fmt}"
  end
end

#format ⇒ Object 



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# File 'lib/neb/private_key.rb', line 58

def format
  return :decimal if raw.is_a?(Numeric)
  return :bin if raw.size == 32
  return :bin_compressed if raw.size == 33
  return :hex if raw.size == 64
  return :hex_compressed if raw.size == 66
end

#to_address ⇒ Object 



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# File 'lib/neb/private_key.rb', line 79

def to_address
  to_address_obj.to_s
end

#to_address_obj ⇒ Object 



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# File 'lib/neb/private_key.rb', line 75

def to_address_obj
  PublicKey.new(to_pubkey_obj.encode(:bin)).to_address
end

#to_pubkey ⇒ Object 



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# File 'lib/neb/private_key.rb', line 66

def to_pubkey
  to_pubkey_obj.to_s
end

#to_pubkey_obj ⇒ Object

Raises:



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# File 'lib/neb/private_key.rb', line 70

def to_pubkey_obj
  raise ValidationError, "Invalid private key" if value >= Secp256k1::N
  PublicKey.new(Secp256k1.priv_to_pub(encode(:bin)))
end

#to_s ⇒ Object 



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# File 'lib/neb/private_key.rb', line 12

def to_s
  encode(:hex)
end

#value ⇒ Object 



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# File 'lib/neb/private_key.rb', line 54

def value
  @value ||= decode
end