Class: Authlogic::CryptoProviders::MD5::V2

Inherits:
Object
  • Object
show all
Defined in:
lib/authlogic/crypto_providers/md5/v2.rb

Overview

A poor choice. There are known attacks against this algorithm.

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.join_tokenObject

Returns the value of attribute join_token


11
12
13
# File 'lib/authlogic/crypto_providers/md5/v2.rb', line 11

def join_token
  @join_token
end

.stretchesObject

The number of times to loop through the encryption.


14
15
16
# File 'lib/authlogic/crypto_providers/md5/v2.rb', line 14

def stretches
  @stretches ||= 1
end

Class Method Details

.encrypt(*tokens) ⇒ Object

Turns your raw password into a MD5 hash.


20
21
22
23
24
# File 'lib/authlogic/crypto_providers/md5/v2.rb', line 20

def encrypt(*tokens)
  digest = tokens.flatten.join(join_token)
  stretches.times { digest = Digest::MD5.digest(digest) }
  digest.unpack1("H*")
end

.matches?(crypted, *tokens) ⇒ Boolean

Does the crypted password match the tokens? Uses the same tokens that were used to encrypt.

Returns:

  • (Boolean)

28
29
30
# File 'lib/authlogic/crypto_providers/md5/v2.rb', line 28

def matches?(crypted, *tokens)
  encrypt(*tokens) == crypted
end