ruby-net-ldap/lib/net/ldap/psw.rb

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# Copyright (C) 2006 by Francis Cianfrocca. All Rights Reserved.
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module Net
  class LDAP
    class Password
      class << self

      # Generate a password-hash suitable for inclusion in an LDAP attribute.
      # Pass a hash type (currently supported: :md5 and :sha) and a plaintext
      # password. This function will return a hashed representation.
      # STUB: This is here to fulfill the requirements of an RFC, which one?
      # TODO, gotta do salted-sha and (maybe) salted-md5.
      # Should we provide sha1 as a synonym for sha1? I vote no because then
      # should you also provide ssha1 for symmetry?
        def generate( type, str )
          digest, digest_name = case type
          when :md5
            [Digest::MD5.new, 'MD5']
          when :sha
            [Digest::SHA1.new, 'SHA']
        # when ssha
          else
            raise Net::LDAP::LdapError.new( "unsupported password-hash type (#{type})" )
          end
          
          digest << str.to_s
          return "{#{digest_name}}#{[digest.digest].pack('m').chomp }"
        end
        
      
      end
    end
  end 
end