I Base64-decoded what was provided (after having added 2 '=' padding chars), the result was binary data. I hexdumped it, and hand analyzed it (I'm used to).
What I saw was the DER encoding of the beginning of an X.509 certificate.

The annotated hexdump is the following:
30 82 07 72 -- SEQUENCE, start of the cert { 
  30 82 07 1c -- SEQUENCE, start of the TBSCert {
    a0 03 -- EXPLICIT TAG 0, optional version {
      02 01 02 -- INTEGER, value 2 (for v3)
    }
    02 10 40 00 00 00 d1 bd cd 0d 49 bf 66 4c 00 ce 85 24 -- INTEGER, serialNumber
    30 0d -- SEQUENCE, field signature, type SignatureAlgorithm {
      06 09 2b 06 01 04 01 9c 56 01 02 -- OID, value 1.3.6.1.4.1.3670.1.2, previously mistakenly designated as hashalg
      05 00 -- NULL, parameters
    }
    30 81 82 -- SEQUENCE OF, issuerName, here comes the different RDN {
      31 13 -- SET OF, the first RDN {
        30 11 -- SEQUENCE, the first AVA of this RDN, probably the only one based on sizes
          06 0a 09 92 26 -- OID, but incomplete (the base64 ends here), starts by 0.9.2342 which is unusually used in a certificate, except maybe for a domainComponent composed of 3 letters (remaining space in the AVA)
  [...]

2013/2/7 <jckidder@aep.com>

You are correct.  That is one way to add binary data using ldif.  Maybe I misunderstood your last statement.  You said that you decoded the data and saw the begining of a certificate.  Did you see the actual certificate details or did you see the binary representation of the certificate that you then decoded again in order to get the certificate details?

-Jon C. Kidder
American Electric Power
Middleware Services
614-716-4970



Erwann Abalea <eabalea@gmail.com>
Sent by: openldap-technical-bounces@OpenLDAP.org

02/07/2013 11:16 AM

To
jckidder@aep.com
cc
openldap-technical@openldap.org, Алексей <gloomyad@gmail.com>
Subject
Re: import Certificate to userCertificate





Unless I'm mistaken, encoding binary data info base64 is the correct way to do when using LDIF files.

2013/2/7 <jckidder@aep.com>

I'm hoping you simply missed my point.  The data presented is not a binary encoded certificate. base64 encoded ASCII is not binary data. userCertificate requires a binary encoded x.509 certificate.


-Jon C. Kidder
American Electric Power
Middleware Services

614-716-4970

Erwann Abalea <eabalea@gmail.com>
Sent by: openldap-technical-bounces@OpenLDAP.org

02/07/2013 10:06 AM


To
jckidder@aep.com
cc
openldap-technical@openldap.org, openldap-technical-bounces@openldap.org, Алексей <gloomyad@gmail.com>
Subject
Re: import Certificate to userCertificate







I disagree here.

Decoding the Base64 presented shows the start of a certificate. It looks like it's a v3 certificate, with a serialNumber equal to 0x40000000d1bdcd0d49bf664c00ce8524, but the hashalg is something private (OID 1.3.6.1.4.1.3670.1.2), which is owned by Mr Pavlov Roman. We also have the very start of the issuerName.

2013/2/7 <
jckidder@aep.com>

This is not a correctly encoded certificate.  The data you're trying to add to userCertificate appears to be base64 encoded ASCII and not binary. 
 

--
Erwann.




--
Erwann.




--
Erwann.