Add public LDAP resolver.

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The S&I framework's provider directory initiative contains a section for 
certificate discovery for Direct Project [1].  The intention is to standardize 
public certificate resolution using both DNS and LDAP.  The section defines a 
multi resolver configuration using DNS as the first resolution method, then 
LDAP as the secondary method if a DNS resolution operation is not successful. 
[2]

The implementation details of the LDAP resolver are described in the 
initiative. [2]

This enhancement will implement the recommendations may by this initiative.  In 
addition, the gateway implemented in the reference implementation will use the 
hybrid approach as the default configuration if an alternative configuration is 
not defined.

[1] http://wiki.siframework.org/Certificate+Discovery+for+Direct+Project
[2] http://wiki.siframework.org/LDAP+and+DNS+Hybrid+Group+Recommendation
[3] 
http://wiki.siframework.org/Implementation+Guidelines+for+publishing+and+discove
ring+LDAP+services+using+the+DNS+SRV+Record

Original issue reported on code.google.com by gm2...@cerner.com on 18 Oct 2011 at 1:00

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Original comment by gm2...@cerner.com on 18 Oct 2011 at 1:30

• Changed state: Started

[GoogleCodeExporter]

This project is on hold for release in the 1.3 Java RI until certificate field 
questions can be resolved.

http://wiki.siframework.org/PD+-+Certificate+Discovery+for+Direct+Project+Implem
entation+Guide+Consensus+Page

Original comment by gm2...@cerner.com on 13 Dec 2011 at 6:02

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smimeCertificate was replaced with userCertificate.

Original comment by pbspamfi...@gmail.com on 20 Dec 2011 at 5:33

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Thanks for the update.  Unfortunately I was not able to attend the meeting 
yesterday due to vacation, but I'm following up with Bob D. to get the rest of 
the details.

-g

Original comment by gm2...@cerner.com on 20 Dec 2011 at 2:52

[GoogleCodeExporter]

Released in agent version 1.2.2.

Original comment by gm2...@cerner.com on 23 Jan 2012 at 4:42

• Changed state: Verified