Class: Eth::Key

Inherits:
Object
  • Object
show all
Defined in:
lib/eth/key.rb

Defined Under Namespace

Classes: Decrypter, Encrypter

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(priv: nil) ⇒ Key

Returns a new instance of Key.



24
25
26
27
 
# File 'lib/eth/key.rb', line 24

def initialize(priv: nil)
  @private_key = MoneyTree::PrivateKey.new key: priv
  @public_key = MoneyTree::PublicKey.new private_key, compressed: false
end

Instance Attribute Details

#private_key ⇒ Object (readonly)

Returns the value of attribute private_key.



6
7
8
 
# File 'lib/eth/key.rb', line 6

def private_key
  @private_key
end

#public_key ⇒ Object (readonly)

Returns the value of attribute public_key.



6
7
8
 
# File 'lib/eth/key.rb', line 6

def public_key
  @public_key
end

Class Method Details

.decrypt(data, password) ⇒ Object 



14
15
16
17
 
# File 'lib/eth/key.rb', line 14

def self.decrypt(data, password)
  priv = Decrypter.perform data, password
  new priv: priv
end

.encrypt(key, password) ⇒ Object 



8
9
10
11
12
 
# File 'lib/eth/key.rb', line 8

def self.encrypt(key, password)
  key = new(priv: key) unless key.is_a?(Key)

  Encrypter.perform key.private_hex, password
end

.personal_recover(message, signature) ⇒ Object 



19
20
21
22
 
# File 'lib/eth/key.rb', line 19

def self.personal_recover(message, signature)
  bin_signature = Utils.hex_to_bin(signature).bytes.rotate(-1).pack('c*')
  OpenSsl.recover_compact(Utils.keccak256(Utils.prefix_message(message)), bin_signature)
end

Instance Method Details

#address ⇒ Object Also known as: to_address 



41
42
43
 
# File 'lib/eth/key.rb', line 41

def address
  Utils.public_key_to_address public_hex
end

#personal_sign(message) ⇒ Object 



62
63
64
 
# File 'lib/eth/key.rb', line 62

def personal_sign(message)
  Utils.bin_to_hex(sign(Utils.prefix_message(message)).bytes.rotate(1).pack('c*'))
end

#private_hex ⇒ Object 



29
30
31
 
# File 'lib/eth/key.rb', line 29

def private_hex
  private_key.to_hex
end

#public_bytes ⇒ Object 



33
34
35
 
# File 'lib/eth/key.rb', line 33

def public_bytes
  public_key.to_bytes
end

#public_hex ⇒ Object 



37
38
39
 
# File 'lib/eth/key.rb', line 37

def public_hex
  public_key.to_hex
end

#sign(message) ⇒ Object 



46
47
48
 
# File 'lib/eth/key.rb', line 46

def sign(message)
  sign_hash message_hash(message)
end

#sign_hash(hash) ⇒ Object 



50
51
52
53
54
55
 
# File 'lib/eth/key.rb', line 50

def sign_hash(hash)
  loop do
    signature = OpenSsl.sign_compact hash, private_hex, public_hex
    return signature if valid_s? signature
  end
end

#verify_signature(message, signature) ⇒ Object 



57
58
59
60
 
# File 'lib/eth/key.rb', line 57

def verify_signature(message, signature)
  hash = message_hash(message)
  public_hex == OpenSsl.recover_compact(hash, signature)
end