Re: Date Attribute

[Michael Ströder <michael@stroeder.com>]

Stella Korakaki wrote:
> Hi everyone.I would like to know if there are any already defined 
> attributes for birthday ? I searched the common schemas provided with 
> openldap but I didn't find anything.

This general topic would be best discussed on ldap@umich.edu list.

Personally I'm using:

#
# Date of birth:
# a numeric string restricted to syntax YYYYMMDD
#
attributetype ( 1.3.6.1.4.1.5427.1.389.4.2
      NAME ( 'dateOfBirth' )
      DESC 'Date of birth (format YYYYMMDD, only numeric chars)'
      EQUALITY numericStringMatch
      SUBSTR numericStringSubstringsMatch
      SINGLE-VALUE
      SYNTAX 1.3.6.1.4.1.1466.115.121.1.36{8} )

In opposite to PKI-related RFC 2985 which uses GeneralizedTime syntax:

------------------------------- snip -------------------------------
  5.2.4 Date of birth

   The dateOfBirth attribute specifies the date of birth for the subject
   it is associated with.

   dateOfBirth ATTRIBUTE ::= {
           WITH SYNTAX GeneralizedTime
           EQUALITY MATCHING RULE generalizedTimeMatch
           SINGLE VALUE TRUE
           ID pkcs-9-at-dateOfBirth
   }

   dateOfBirth attributes must be single-valued.  The
   generalizedTimeMatch matching rule is defined in [8].
------------------------------- snip -------------------------------

I prefer my NumericString approach over using GeneralizedTime syntax since 
setting the time is not clearly specified for dateOfBirth => matching can 
get difficult.

Ciao, Michael.