Class: Beowulf::Wallet

Inherits:
Object
  • Object
show all
Includes:
ChainConfig, Utils
Defined in:
lib/beowulf/wallet.rb

Constant Summary

Constants included from ChainConfig

ChainConfig::EXPIRE_IN_SECS, ChainConfig::EXPIRE_IN_SECS_PROPOSAL, ChainConfig::NETWORKS_BEOWULF_ADDRESS_PREFIX, ChainConfig::NETWORKS_BEOWULF_BWF_ASSET, ChainConfig::NETWORKS_BEOWULF_CHAIN_ID, ChainConfig::NETWORKS_BEOWULF_DEFAULT_NODE, ChainConfig::NETWORKS_BEOWULF_VEST_ASSET, ChainConfig::NETWORKS_BEOWULF_W_ASSET, ChainConfig::NETWORK_CHAIN_IDS

Instance Method Summary collapse

Methods included from Utils

#debug, #error, #extract_signatures, #hexlify, #pakArr, #pakC, #pakHash, #pakI, #pakL!, #pakPubKey, #pakQ, #pakS, #pakStr, #pakc, #pakq, #paks, #send_log, #unhexlify, #varint, #warning

Constructor Details

#initialize(options = {}) ⇒ Wallet 



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# File 'lib/beowulf/wallet.rb', line 11

def initialize(options = {})
  @name = options[:name] || ''
  @private_key = options[:private_key] || ''
  @public_key = options[:public_key] || ''
  @cipher_keys = options[:cipher_keys] || ''
  @cipher_type = 'aes-256-cbc'
  @salt = options[:salt] || ''
end

Instance Method Details

#decrypt(key, data) ⇒ Object

gist.github.com/andrekandore/3140554



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# File 'lib/beowulf/wallet.rb', line 181

def decrypt(key, data)
  block = key[0..31]
  aes = OpenSSL::Cipher.new('AES-256-CBC')
  aes.decrypt
  last = 31 + aes.block_size
  aes.iv = key[32..last]
  aes.key = block
  final_msg = aes.update(data) + aes.final
  final_msg
end

#encrypt(key, data) ⇒ Object

gist.github.com/andrekandore/3140554



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# File 'lib/beowulf/wallet.rb', line 130

def encrypt(key, data)
  block = key[0..31]
  aes = OpenSSL::Cipher.new('AES-256-CBC')
  aes.encrypt
  last = 31 + aes.block_size
  aes.iv = key[32..last]
  aes.key = block
  final_msg = aes.update(data) + aes.final
  final_msg
end

#gen_keys ⇒ Object 



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# File 'lib/beowulf/wallet.rb', line 32

def gen_keys
  @private_key = gen_priv
  @public_key = gen_pub
end

#gen_priv ⇒ Object 



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# File 'lib/beowulf/wallet.rb', line 37

def gen_priv
  rd = SecureRandom.alphanumeric(128)
  seed = @name + "owner" + rd
  bytes = pakStr(seed)
  hashSha256 = Digest::SHA256.digest(bytes)
  # create checksum
  pk = unhexlify('80')
  pk << hashSha256
  chs = Digest::SHA256.digest(pk)
  chs = Digest::SHA256.digest(chs)
  # create private key.
  b58 = pk
  b58 << chs[0..3]
  priv_key = Base58.binary_to_base58(b58, :bitcoin)
  priv_key
end

#gen_pub ⇒ Object 



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# File 'lib/beowulf/wallet.rb', line 54

def gen_pub
  if @private_key.length > 0
    b58 = Base58.base58_to_binary(@private_key, :bitcoin)
    # Get checksum 4-bytes end.
    lb58 = b58.length-4
    chs = b58[lb58..-1]
    # Get raw private key
    hb58 = lb58-1
    tpk = b58[0..hb58]
    # Test checksum private key
    nchs = Digest::SHA256.digest(tpk)
    nchs = Digest::SHA256.digest(nchs)
    achs = hexlify(chs)
    bnchs = hexlify(nchs[0..3])
    if !(achs.eql? bnchs)
      puts achs, bnchs
      puts 'Invalid private key (checksum miss-match)'
      raise WalletError, "Invalid private key (checksum miss-match): #{achs} != #{bnchs}"
    end
    # Create Public Key
    bk = Bitcoin::Key.new(hexlify(tpk[1..-1]), nil, {compressed: true})
    public_key_hex = bk.pub
    public_key_byte = unhexlify(public_key_hex)
    checksum = OpenSSL::Digest::RIPEMD160.digest(public_key_byte)
    public_key = NETWORKS_BEOWULF_ADDRESS_PREFIX + Base58.binary_to_base58(public_key_byte + checksum[0..3], :bitcoin)
    public_key
  end
end

#name ⇒ Object 



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# File 'lib/beowulf/wallet.rb', line 20

def name
  @name
end

#private_key ⇒ Object 



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# File 'lib/beowulf/wallet.rb', line 24

def private_key
  @private_key
end

#public_key ⇒ Object 



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# File 'lib/beowulf/wallet.rb', line 28

def public_key
  @public_key
end

#read_wallet_file(wallet_path_file, password) ⇒ Object 



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# File 'lib/beowulf/wallet.rb', line 141

def read_wallet_file(wallet_path_file, password)
  # Validate inputs
  if wallet_path_file == nil || wallet_path_file.length == 0
    puts "Path file wallet is not empty."
    raise WalletError, "Path file wallet is not empty."
  end
  if password == nil || password.length == 0
    puts "Password is not empty."
    raise WalletError, "Password is not empty."
  end
  # Read file wallet
  file = File.read(wallet_path_file)
  wallet_json = JSON.parse(file)
  # Init properties wallet
  @name = wallet_json['name']
  @cipher_keys = wallet_json['cipher_keys']
  @salt = wallet_json['salt']
  # Create checksum
  new_password = password + @salt
  pw_bytes = pakStr(new_password)
  checksum = Digest::SHA512.digest(pw_bytes)
  chs = hexlify(checksum)
  # Decrypt data
  data_byte = unhexlify(@cipher_keys)
  # Decrypt AES
  msg_decrypt = decrypt(chs, data_byte)
  msg_json = JSON.parse(msg_decrypt)
  dechs = msg_json['checksum']
  if !(chs.eql? dechs)
    puts "Password wrong."
    raise WalletError, "Password wrong."
  end
  keys = msg_json['keys']
  keys.each do |key, value|
    @public_key = key
    @private_key = value
  end
end

#save_wallet_file(wallet_path, wallet_filename, password) ⇒ Object 



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# File 'lib/beowulf/wallet.rb', line 83

def save_wallet_file(wallet_path, wallet_filename, password)
  # Validate
  if password == nil || password.length == 0
    puts "Password is not empty."
    raise WalletError, "Password is not empty."
  end
  if password.length < 8
    puts "Password length >= 8 character."
    raise WalletError, "Password length >= 8 character."
  end
  if @name == nil || @name.length == 0
    puts "name is not empty."
    raise WalletError, "name is not empty."
  end

  # Encrypt data
  # Create checksum
  @salt = SecureRandom.alphanumeric(16)
  new_password = password + @salt
  pw_bytes = pakStr(new_password)
  checksum = Digest::SHA512.digest(pw_bytes)
  chs = hexlify(checksum)
  # Create plain_data
  keys = {@public_key => @private_key}
  plain_keys = {"checksum" => chs, "keys" => keys}
  plain_data = JSON.dump(plain_keys)

  # Encrypt AES
  msg_encrypt = encrypt(chs, plain_data)
  msg_hex = hexlify(msg_encrypt)
  @cipher_keys = msg_hex

  # Write file
  file_path = wallet_filename
  if wallet_filename.length == 0
    file_path = @name + "-wallet.json"
  end
  if wallet_path.length > 0
    file_path = File.join(wallet_path, file_path)
  end
  # Create data save.
  wallet_data = {"cipher_keys" => @cipher_keys, "cipher_type" => @cipher_type, "salt" => @salt, "name" => @name}
  wallet_json = JSON.dump(wallet_data)
  File.open(file_path, "w") { |file| file.puts wallet_json}
end