Module: Shamu::Security::HashedValue

Included in:
Features::ToggleCodec, Shamu::Sessions::CookieStore
Defined in:
lib/shamu/security/hashed_value.rb

Overview

Adds support for hashing and verifying a string value.

class Codec
  include Shamu::Security::HashedValue

  def initialize( private_key = Shamu::Security.private_key )
    @private_key = private_key
  end

  def store( value )
    hash_value( value )
  end

  def restore( hashed )
    verify_hash( hashed )
  end
end

codec = Codec.new
signed = codec.store "example"  # => "0123456789abcdef0123456789abcdef012345678;example"
codec.restore signed            # => "example"
codec.restore "example"         # => nil

Instance Method Summary collapse

Instance Method Details

#hash_value(string) ⇒ String

Returns packed string with hash and original value.

Parameters:

  • string (String) —

    to hash.

Returns:

  • (String) —

    packed string with hash and original value.



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# File 'lib/shamu/security/hashed_value.rb', line 42

def hash_value( string )
  return nil unless string
  "#{ hash_digest( string ) }$#{ string }"
end