Class: H::Generator

Inherits:

Object

• Object
• H::Generator

Defined in:

lib/h.rb

Overview

Class that generates cryptographic hash

Instance Method Summary

• #initialize(static_key) ⇒ H::Generator constructor

  Initialize a H instance.

• #input(m, l) ⇒ String

  Return a hash of l length.

Constructor Details

#initialize(static_key) ⇒ H::Generator

Initialize a H instance.

Parameters:

• static_key (String) —

  a random data

# File 'lib/h.rb', line 13

def initialize(static_key)
  @static_key = static_key
end

Instance Method Details

#input(m, l) ⇒ String

Return a hash of l length.

Parameters:

• m (String) —

  a message

• l (Fixnum) —

  the length of the returned string

Returns:

• (String) —

  salted cryptographic hash.

# File 'lib/h.rb', line 25

def input(m, l)
  m += @static_key
  d = cryptographic_hash(m)
  truncate d, l
end