module SecureCompare

Public Class Methods

compare(a, b) click to toggle source

# File lib/secure_compare.rb, line 2
def self.compare(a, b)
  return false unless a.bytesize == b.bytesize

  l = a.unpack "C#{a.bytesize}"

  res = 0
  b.each_byte { |byte| res |= byte ^ l.shift }
  res == 0
end