Module: Eth::Utils

Defined in:
lib/ethruby/utils.rb

Class Method Summary collapse

Class Method Details

.big_endian_decode(input) ⇒ Object 



19
20
21
 
# File 'lib/ethruby/utils.rb', line 19

def big_endian_decode(input)
  input.each_byte.reduce(0) {|s, i| s * 256 + i}
end

.big_endian_encode(n) ⇒ Object 



11
12
13
14
15
16
17
 
# File 'lib/ethruby/utils.rb', line 11

def big_endian_encode(n)
  if n == 0
    ''
  else
    big_endian_encode(n / 256) + (n % 256).chr
  end
end

.data_to_hex(data) ⇒ Object 



27
28
29
 
# File 'lib/ethruby/utils.rb', line 27

def data_to_hex(data)
  data.unpack("H*").first
end

.hex_to_data(hex) ⇒ Object 



23
24
25
 
# File 'lib/ethruby/utils.rb', line 23

def hex_to_data(hex)
  [hex].pack("H*")
end

.sha3(text) ⇒ Object 



7
8
9
 
# File 'lib/ethruby/utils.rb', line 7

def sha3(text)
  Digest::SHA3.new(256).digest text
end