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Merge pull request #34 from jessehub/master

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salted sha1 for password generator()
This commit is contained in:
Rory O'Connell 2012-08-28 15:52:40 -07:00
commit 9de9bc755b
1 changed files with 20 additions and 14 deletions
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34
lib/net/ldap/password.rb
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@ -1,31 +1,37 @@
# -*- ruby encoding: utf-8 -*-
require 'digest/sha1'
require 'digest/md5'
require 'base64'
class Net::LDAP::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
# Pass a hash type as a symbol (:md5, :sha, :ssha) 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?
# TODO:
# * maybe salted-md5
# * Should we provide sha1 as a synonym for sha1? I vote no because then
# should you also provide ssha1 for symmetry?
#
attribute_value = ""
def generate(type, str)
digest, digest_name = case type
when :md5
[Digest::MD5.new, 'MD5']
when :sha
[Digest::SHA1.new, 'SHA']
else
raise Net::LDAP::LdapError, "Unsupported password-hash type (#{type})"
end
digest << str.to_s
return "{#{digest_name}}#{[digest.digest].pack('m').chomp }"
case type
when :md5
attribute_value = '{MD5}' + Base64.encode64(Digest::MD5.digest(str)).chomp!
when :sha
attribute_value = '{SHA}' + Base64.encode64(Digest::SHA1.digest(str)).chomp!
when :ssha
srand; salt = (rand * 1000).to_i.to_s
attribute_value = '{SSHA}' + Base64.encode64(Digest::SHA1.digest(str + salt) + salt).chomp!
else
raise Net::LDAP::LdapError, "Unsupported password-hash type (#{type})"
end
return attribute_value
end
end
end