Another Question about Certificate-based Authentication

Hello,
I was successful in PDC-based authentication, but have the
requirement to further improve this.
For this, I have to use the "Match Certificate in LDAP"-feature.
I have modified a user to include a "userCertificate"-attribute,
and pointed the parameters to access to the directory server.
Until now, I had no success.
In the Logfile "amAuth"-Logfile I can see this message:
<------------------>8-------------------->8------------------------>
com.sun.identity.authentication.spi.AuthLoginException: Error in locating registered certificate
<------------------>8-------------------->8------------------------>
In the Directory Server log, I can only see a successful bind-request,
but, interestingly, no search:
<------------------>8-------------------->8------------------------>
[28/Sep/2004:10:47:17 +0200] conn=3352 op=-1 msgId=-1 - fd=109 slot=109 LDAP connection from 127.0.0.1 to 127.0.0.1
[28/Sep/2004:10:47:17 +0200] conn=3352 op=0 msgId=8782 - BIND dn="cn=Directory Manager" method=128 version=2
[28/Sep/2004:10:47:17 +0200] conn=3352 op=0 msgId=8782 - RESULT err=0 tag=97 nentries=0 etime=0 dn="cn=directory manager"
<------------------>8-------------------->8------------------------>
Anyone successful with this feature?
Regards,
Juergen Maihoefner

Hi there
I got a couple of doubts about the Certificate Authentication module, maybe you can help!
First, have you made any documentation on how you made this work ? Is it at all possible to get the source code of the module you have made? I think I'll need to create a costum module aswell because of very specific client requisits.
My problem ( and I'll be posting a new thread with this, but just in case you have this on your watch list ) is that I need to have both user/password and Cert Based authentication enabled. I'll create a chain with both modules as sufficient. My problem is : the documentation tells me that I need to have the containers (I suspect both the server and the agents ) with SSL enable and (and this is the tricky part) with Client Authentication Enabled . Now my problem is : when on the http listener, I configure it with security and enable that listener with Client Authentication, when I try to access the container on the secure listener I get an error (in firefox) or the browser asks me to select a certificate ( on IE ). When I dont provide a certifica it gives me the same error as firefox.
Basically, what I believe is happening is that with Client Authentication, the container will always request a certificate from the browser. Which isn't exactly what I want. I need to AM protected resources on this specific realm to allow authentication of a user based on a user/password OR a Certificate.
Basically what I want to know is : do I need to have Client Authentication Enabled on the http listener ? Did I miss read the documentation? Is there a really good how-to on how to do this ? Can you give me a hand?
Thanks loads for your help
Rp

Similar Messages

Need Help about Certificate based Authentication

Hi friends..
Currently, i'm trying to develop an applet that using Certificate Based Authentication..
i have looked at this thread : http://forums.sun.com/thread.jspa?threadID=5433603
these is what Safarmer says about steps to generate CSR :
0. Generate key pair on the card.
1. Get public key from card
2. Build CSR off card from the details you have, the CSR will not have a signature
3. Decide on the signature you want to use (the rest assumes SHA1 with RSA Encryption)
4. Generate a SHA1 hash of the CSR (without the signature section)
5. Build a DigestInfo structure (BER encoded TLV that you can get from the PKCS#1 standard) that contains the message digest generated in the previous step
6. Send DigestInfo to the card
7. On the card, the matching private key to encrypt the DigestInfo
8. Return the encrypted digest info to the host
9. Insert the response into the CSR as the signature
Sorry, i'm a little bit confused about those steps.. (Sorry i'm pretty new in X509Certificate)..
on step 4,
Generate a SHA1 hash of the CSR (without the signature section)
Does it mean we have to "build" CSR looks like :
Data:
Version: 0 (0x0)
Subject: C=US, ST=California, L=West Hollywood, O=ITDivision, OU=Mysys, CN=leonardo.office/[email protected]
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
RSA Public Key: (1024 bit)
Modulus (1024 bit):
00:be:a0:5e:35:99:1c:d3:49:ba:fb:2f:87:6f:d8:
ed:e4:61:f2:ae:6e:87:d0:e2:c0:fd:c1:0f:ed:d7:
84:04:b5:c5:66:cd:6b:f0:27:a2:cb:aa:3b:d7:ad:
fa:f4:72:10:08:84:88:19:24:d0:b0:0b:a0:71:6d:
23:5e:53:4f:1b:43:07:98:4d:d1:ea:00:d1:e2:29:
ea:be:a9:c5:3e:78:f3:5e:30:1b:6c:98:16:60:ba:
61:57:63:5e:6a:b5:99:17:1c:ae:a2:86:fb:5b:8b:
24:46:59:3f:e9:84:06:e2:91:b9:2f:9f:98:04:01:
db:38:2f:5b:1f:85:c1:20:eb
Exponent: 65537 (0x10001)
Attributes:
a0:00
on step 5, Build a DigestInfo structure (BER encoded TLV that you can get from the PKCS#1 standard) that contains the message digest generated in the previous step
How DigestInfo structure (BER encoded TLV that you can get from the PKCS#1 standard) looks like?
And what is the DigestInfo Contains, and what is TAG for DigestInfo?..
Please help me regarding this..
Thanks in advance..
Leonardo Carreira

Hi,
Leonardo Carreira wrote:
Sorry, Encode the Public Key is handled by On Card Application or Off Card Application?..
I think its' easier to encode the public key by Off Card app..
Could you guide me how to achieve this?, i think Bouncy Castle can do this, but sorry, i don't know how to write code for it.. :( All you need to do is extract the modulus and exponent of the public key. These will be in a byte array (response from your card) that you can use to create a public key object in your host application. You can then use this key to create a CSR with bouncycastle.
I have several some questions :
1. Does Javacard provide API to deal with DER data format?JC 2.2.1 does not buy JC 2.2.2 does, however I believe this is an optional package though. You can implement this in your applet though.
2. Regarding the Certificate Based Authentication, what stuff that need to be stored in the Applet?..
- I think Applet must holds :
- its Private Key,
- its Public Key Modulus and its Public Key Exponent,
- its Certificate,
- Host Certificate
i think this requires too much EEPROM to store only the key..This depends on what you mean by Certificate Based Authentication. If you want your applet to validate certificates it is sent against a certificate authority (CA) then you need the public keys for each trust point to the root CA. To use the certificate for the card, you need the certificate and corresponding private key. You would not need to use the public key on the card so this is not needed. You definitely need the private key.
Here is a rough estimate of data storage requirements for a 2048 bit key (this is done off the top of my head so is very rough):
~800 bytes for your private key
~260 bytes per public key for PKI hierarchy (CA trust points)
~1 - 4KB for the certificate. This depends on the amount of data you put in your cert
3. What is the appropriate RSA key length that appropriate, because we have to take into account that the buffer, is only 255 bytes (assume i don't use Extended Length)..You should not base your key size on your card capabilities. You can always use APDU chaining to get more data onto the card. Your certificate is guaranteed to be larger than 256 bytes anyway. You should look at the NIST recommendations for key strengths. These are documented in NIST SP 800-57 [http://csrc.nist.gov/publications/PubsSPs.html]. You need to ensure that the key is strong enough to protect the data for a long enough period. If the key is a transport key, it needs to be stronger than the key you are transporting. As you can see there are a lot of factors to consider when deciding on key size. I would suggest you use the strongest key your card supports unless performance is not acceptable. Then you would need to analyse your key requirements to ensure your key is strong enough.
Cheers,
Shane

Certificate Based Authentication - Questions and Authentication Modules

Hi Everyone
I'm trying to achieve a specific configuration using AM . I've installed the AM Server 7.1 on a AS9.1EE container and have another AS91EE container on another machine that has the agent configured.
The AM server is using a DS rep for configurations and dynamic profiles and using a AD rep for authentication.
What I now need to achieve is authentication base on one of these two way :
- user and password authentication (which is working)
- Certificate based authentication ( working on it )
To configure the Cert. Auth I've started reconfiguring the containers and agent to work in SSL, as said in the manuals. The manuals also say that the containers must have "Client Authentication Enabled", they don't say which ( either the server or agent container or both ) . Also I assume that "Client Authentication Enabled" is refering to the Http Listener configuration of that container.
When I enable it ( the Client Authentication ) on the http listener for either containers the https connection to that container stops working. In Firefox it simply prompts an error saying that the connection was "interrupted while the page was loading." . On IE, it prompts for a Certificate to be sent to the container and when I provide none, then it gives me the same error as Firefox. In both cases no page was presented.
Basically what I need is for both authentication methods described before to work! So, asking the certificate ( specially if it wasn't the AM asking for it ) without giving the user a chance to use a user/password combination isn't what is wanted.
From what I gathered the "Client Authentication" makes this http listener need a certificate to be presented always .
So, my first question is : is the documentation correct? Does this "Client Authentication" thingy need to be enabled at the listener level?
2- I'll probably need to code a costum module for this scenario I'm working in because of client requisits, but if possible I would like to use the provided module. Still, in case I need to make on, has anyone made a cert. auth module that they can provide me with so I have a working base to start with?
3- Is there a tested how-to anywhere on how to configure Cert. Based Authentication?
All for now,
Thank you all for your help
Rp

Hi Rp,
We are using AM 7.1 with Certificate Authentication and LDAP Authentication. To answer your question, yes it is possible to use both method at the same time i.e. Use certificate first and then fallback to LDAP.
First you need to configure AM's webcontainer to accept the certificate. From your message it is clear that you have done that. The only mistake that you did is "made the Client Authentication required". I have done this in Sun WebServer 7.0 and Sun Application Server 7.0 (yeah that is old!!). You need to make the Client Authentication as optional. It means that Certificate will be transferred only when it is available otherwise Web Container will not ask for the Certificate. You will have to search Glassfish website or ASEE 9.1 manual to learn how to make the Client-Authentication Optional. You definitely need this authentication optional as Web Agent will be connecting to this AM and as far as I know they do not have any mechanism to do the Client Authentication.
Secondly, In AM 7.1, you will have to Set up the Authentication chaining. Where you can make Certificate Module as Sufficient and LDAP module as REQUIRED.
Thirdly, if you are using an non ocsp based certificate then change the ocsp checking in AMConfig.properties to false.
Fourth, You may have to write a small custom code to get the profile from your external sources. (if you need to then I can tell you how).
HTH,
Vivek

Certificate based authentication

I have a client application that requires certificate based authentication.
I could not find any instructions on how to set this up in the 11g manuals. So I reverted to the 5.2 manual (http://docs.oracle.com/cd/E19850-01/816-6698-10/ssl.html#18500), and followed some instructions found online.
I have completed the setup, and the client is able to authenticate using his certificate, and I have verified this in the logs.
[22/Mar/2012:13:13:33 -0500] conn=34347 op=-1 msgId=-1 - SSL 128-bit RC4; client CN=userid,OU=company,L=city,ST=state,C=US; issuer CN=issuing,DC=corp,DC=company,DC=lan
[22/Mar/2012:13:13:33 -0500] conn=34347 op=-1 msgId=-1 - SSL client bound as uid=userid,ou=employees,o=company
[22/Mar/2012:13:13:33 -0500] conn=34347 op=0 msgId=1 - BIND dn="" method=sasl version=3 mech=EXTERNAL
When adding the usercertificate attribute to the ID I used the following LDIF:
version: 1
dn: uid=userid,ou=employees,o=company
changetype: modify
replace: userCertificate
usercertificate: < file:///home/user/Certs/usercert.bin
the file was a binary encoded certificate file.
Here is the part that I don't understand when I do a search (or LDIF export) of the user object with the certificate it just returns a short base64 encoded string. when I decode this string, it is just the literal string of "< file:///home/user/Certs/usercert.bin".
So it appears that the certificate has not been stored on the user object in binary, and yet the certificate authentication still works. The file mentioned, does not exist on the LDAP server (the cert was loaded from another server), so there is no way that it is reading the cert from the file.
Anyone have any idea what is going on here? And why certificate auth works, when there appears to be not cert stored in LDAP?
If by chance this is how it is all suppose to work, then how do I go about backing up the usercertificate attribute when I do my LDAP data backups?
Thanks
Brian

Cyril,
Thanks for the reply.
I believe I am doing both types of certificate authentication, you are describing. My issue is that when I perform the steps to store the PEM formatted cert into the directory server, rather than storing a binary value of the cert, it appears to be storing the path to the file I attempted to import. The odd part is that I can still authenticate even after this is done.
I tried to post as much info as I could before without posting any sensitive data, I'll try and expand on that below.
Here is my documentation of the steps taken to configure the server and setup a user, for what I believe to be certificate based authentication, where the user is authenticated solely on the certificate that they provide (no password is sent).
1. Server must be running SSL, all connections for Certificate Auth are done over SSL (just a note)
2. From the DSCC
----a. Directory Servers Tab -> Servers Tab -> Click Server Name
----b. Security Tab -> General Tab
----c. In "Client Authentication" section, select:
--------i. LDAP Settings: "Allow Certificate-Based Client Authentication"
--------ii. This should be the default setting.
3. On the directory server setup the /ldap/dsInst/alias/certmap.conf file:
----a. certmap default default
----default:DNComps
----default:FilterComps uid,cn
4. restart the directory server
5. Do the following to setup the user who will be connecting. On their unix account (or similar)
----a. Create a directory to hold the certDB
--------i. mkdir certdb
----b. Create a CertDB
--------i. /ldap/dsee7/bin/certutil -N -d certdb
------------1) Enter a password when prompted
----c. Import the CA cert
--------i. /ldap/dsee7/bin/certutil -A -n "OurRootCA" -t "C,," -a -I ~/OurRootCA.cer -d certdb
----d. Create a cert request
--------i. /ldap/dsee7/bin/certutil -R -s "cn=userid,ou=company,l=city,st=state,c=US" -a -g 2048 -d certdb
----e. Send the cert request to the PKI Team to generate a user cert
----f. Take the text of the generated cert & save it to a file
----g. Import the new cert into your certdb
--------i. /ldap/dsee7/bin/certutil -A -n "certname" -t "u,," -a -i certfile.cer -d certdb
----h. Create a binary version of cert
--------i. /ldap/dsee7/bin/certutil -L -n "certname" -d certdb -r > userid.bin
----i. Add the binary cert to the user's LDAP entry (version: 1 must be included - I read this in a doc somewhere, but it doesn't seem to matter)
--------i. ldapmodify
------------1) ldapmodify -h host -D "cn=directory manager" -w password -ac
------------2)
------------version: 1
------------dn: uid=userid,ou=employees,o=company
------------sn: Service Account
------------givenName: userid
------------uid: userid
------------description: Service Account for LDAP
------------objectClass: top
------------objectClass: person
------------objectClass: organizationalPerson
------------objectClass: inetorgperson
------------cn: Service Account
------------userpassword: password
------------usercertificate: < file:///home/userid/Certs/userid.bin
------------nsLookThroughLimit: -1
------------nsSizeLimit: -1
------------nsTimeLimit: 180
After doing this setup I am able to perform a search using the certificate:
ldapsearch -h host -p 1636 -b "o=company" -N "certname" -Z -W CERTDBPASSWORD -P certdb/cert8.db "(uid=anotherID)"
This search is successful, and I can see it logged, as having been a certificate based authentication:
[23/Mar/2012:13:25:20 -0500] conn=44605 op=-1 msgId=-1 - fd=136 slot=136 LDAPS connection from x.x.x.x:53574 to x.x.x.x
[23/Mar/2012:13:25:20 -0500] conn=44605 op=-1 msgId=-1 - SSL 128-bit RC4; client CN=userid,OU=company,L=city,ST=state,C=US; issuer CN=issuer,DC=corp,DC=company,DC=lan
[23/Mar/2012:13:25:20 -0500] conn=44605 op=-1 msgId=-1 - SSL client bound as uid=userid,ou=employees,o=company
[23/Mar/2012:13:25:20 -0500] conn=44605 op=0 msgId=1 - BIND dn="" method=sasl version=3 mech=EXTERNAL
If I understand correctly that would be using the part 2 of your explanation as using the binary encoded PEM to authenticate the user. If I am not understanding that corretly please let me know.
Now the part that I am really not getting is that the usercertificate that is stored on the ID is as below:
dn: uid=userid,ou=employees,o=company
usercertificate;binary:: PCBmaWxlOi8vL2hvbWUvdXNlcmlkL0NlcnRzL3VzZXJpZC5iaW4
which decodes as: < file:///home/userid/Certs/userid.bin
So I'm still unclear as to what is going on here, or what I've done wrong. Have I set this up incorrectly such that Part 2 as you described it is not what I have setup above? Or am I missunderstanding part 2 entirely?
Thanks
Brian
Edited by: BrianS on Mar 23, 2012 12:14 PM
Just adding ---- to keep my instruction steps indented.

Certificate based authentication with SSL load balancer

I've been asked to implement certificate-based authentication (CBA)
on a weblogic cluster serving up web services. I've read through
Chapter 10 (security) and understand the "Identity Assertion" concept.
Environment:
Weblogic 8.1 cluster fronted by a load-balancer that handles SSL and
uses sticky-sessions.
Question:
If the load balancer is used to handle SSL, do I still need to turn
on SSL on the weblogic cluster in order to use CBA? Is there another
way to request the client's certificate?
If the above is yes, what is the minnimal level of SSL? Does it have
to be two-way?
If SSL has to be turned on is there any reason to use the load
balancer's SSL? Is there still a performance benefit?

I think the simplest and most secure way is to have the servers configured for
2-way ssl, since this would ensure that the certificate they receive and use for
authentication has been validated during the ssl handshake. In this case the load
balancer itself does not need to and cannot do the handshaking, and would need
to pass the entire SSL connection through to the WLS server (ie: act similar to
a router)
Pavel.
"George Coller" <[email protected]> wrote:
>
I've been asked to implement certificate-based authentication (CBA)
on a weblogic cluster serving up web services. I've read through
Chapter 10 (security) and understand the "Identity Assertion" concept.
Environment:
Weblogic 8.1 cluster fronted by a load-balancer that handles SSL and
uses sticky-sessions.
Question:
If the load balancer is used to handle SSL, do I still need to turn
on SSL on the weblogic cluster in order to use CBA? Is there another
way to request the client's certificate?
If the above is yes, what is the minnimal level of SSL? Does it have
to be two-way?
If SSL has to be turned on is there any reason to use the load
balancer's SSL? Is there still a performance benefit?

Transition to Certificate Based Authentication

Hello,
I was hoping someone could help provide some insight into a question I have. We are in the process of rolling out a new Mobile Device Management system that will give us the ability to insert User Certificates on the mobile devices.
My question is: While we are in transition to this system, is it possible to have both Digest AND Certificate Based authentication working on Exchange (2010) without causing service disruption to the devices that have not yet been migrated to the new MDM
system?
Thank you in advance,
Ryan

Hi,
Reporting Services uses the HTTP SSL (Secure Sockets Layer) service to establish encrypted connections to a report server. If you have certificate (.cer) file installed in a local certificate store on the report server computer, you can bind the certificate
to a Reporting Services URL reservation to support report server connections through an encrypted channel.
Server certificates are installed on the Web server and typically require no additional configuration on the clients. Server certificates allow the clients to verify the identity of the server.
Because, some Web sites and applications might require client certificates. Client certificates are installed on the client and allow the server to authenticate the clients. For more information about configuring client certificates, see
Enabling Client Certificates in IIS 6.0 . But Client certificates is not supported in the SSRS 2005 later version. So SSRS 2008 R2 will not allow the server to authenticate the clients.
More details information in article below for your reference:
Configuring a Report Server for Secure Sockets Layer (SSL) Connections
If you still have any problem, please feel free to ask.
Regards,
Vicky Liu
Vicky Liu
TechNet Community Support

X.509 certificate based authentication with load balancer

I've been asked to implement certificate-based authentication (CBA)
on a weblogic cluster serving up web services. I've read through
Chapter 10 (security) and understand the "Identity Assertion" concept.
Environment:
Weblogic 8.1 cluster fronted by a load-balancer that handles SSL and
uses sticky-sessions.
Question:
If the load balancer is used to handle SSL, do I still need to turn
on SSL on the weblogic cluster in order to use CBA? Is there another
way to request the client's certificate?
If the above is yes, what is the minnimal level of SSL? Does it have
to be two-way?
If SSL has to be turned on is there any reason to use the load
balancer's SSL? Is there still a performance benefit?

Hi George,
If you want the client's cert, the server has to ask for it and this
implies two-way SSL. Normal one-way SSL the server provides the cert to
the client and the client decides if it wants to continue the handshake.
If the client is OK with the server certs and two-way SSL is configured
on the server, then the server will request the client send it's certs.
If the client certs are OK, then the pipe is established.
Concerning the load balancer I'm assuming it is simply providing a
tunnel, but I don't have the experience to comment and it is something I
would suggest that you that you seek guidance from our outstanding
support team [1] or drop a note in the security newsgroup [2] for the
experts to review.
Regards,
Bruce
[1]
http://support.bea.com
[email protected]
[2]
http://newsgroups.bea.com/cgi-bin/dnewsweb?cmd=xover&group=weblogic.developer.interest.security
George Coller wrote:
>
I've been asked to implement certificate-based authentication (CBA)
on a weblogic cluster serving up web services. I've read through
Chapter 10 (security) and understand the "Identity Assertion" concept.
Environment:
Weblogic 8.1 cluster fronted by a load-balancer that handles SSL and
uses sticky-sessions.
Question:
If the load balancer is used to handle SSL, do I still need to turn
on SSL on the weblogic cluster in order to use CBA? Is there another
way to request the client's certificate?
If the above is yes, what is the minnimal level of SSL? Does it have
to be two-way?
If SSL has to be turned on is there any reason to use the load
balancer's SSL? Is there still a performance benefit?

Exchange 2010 SP3 OWA with certificate based authentication

Hi,
I have a bizarre problem in my customer’s environment. Maybe someone has an idea.
Exchange 2010 with SP3, latest cumulative Update installed.
The problem I’m having is that when I enable Certificate based authentication (require client certificate option in IIS) on OWA and ECP virtual directories in conjunction with forms based authentication (this is the requirement – the user
must have a client certificate and type in username and password to log in to OWA), the result is that after the user selects the certificate he wants to use, he is logged into OWA automatically, but cannot use the website, because it’s being constantly automatically
refreshed (or redirected to itself or something like that). The behavior occurs with all users, with any browser. If client certificate is on required, forms based authentication works just fine. If I switch to “Basic Authentication” and enable client certificate
requirement, then OWA act’s as it should be – so no problems. The problem only occurs when authentication type is forms based and client certificates are required.
I have tried the exact same settings (as far as I can tell) on one other production server and one test server, and encountered no such problems.
Anyone – any ideas?

Hi McWax,
According to your description and test, I understand that all accounts cannot login OWA when select require client certificate.
Is there any error message when open OWA or login? For example, return error ”HTTP error: 403 - Forbidden”. Please post relative error for further troubleshooting.
I want to confirm which authentication methods are used for OWA, Integrated Windows authentication or Digest authentication? More details about it, for your reference:
http://technet.microsoft.com/en-us/library/bb430796(v=exchg.141).aspx
If you select another authentication method, please check whether Client Certificate Mapping Authentication services is installed, and also enabled in IIS, please refer to:
http://www.iis.net/configreference/system.webserver/security/authentication/clientcertificatemappingauthentication
To prevent firewall factor, please try to sign in OWA at CAS server. Besides, I find a FAQ about certificate:
http://technet.microsoft.com/en-us/library/aa998424(v=exchg.80).aspx
Best Regards,
Allen Wang

NPS and Cisco ASA 5510 - AnyConnect Certificate based authentication

Hi everyone,
Hoping someone can help please.
We're trying to go for a single VPN solution at our company, as we currently have a few through, when buying other companies.
We're currently running a 2008 R2 domain, so we're looking at NPS and we have Cisco ASA 5510 devices for the VPN side.
What we would like to achieve, is certificate based authentication. So, user laptop has certificate applied via group policy based on domain membership and group settings, then user goes home. They connect via Cisco AnyConnect via the Cisco ASA 5510 and
then that talks to MS 2008 R2 NPS and authenticates for VPN access and following that, network connectivity.
Has anyone implemented this before and if so, are there any guides available please?
Many Thanks,
Dean.

Hi Dean,
Thanks for posting here.
Yes, this is possible . But we have guide about a sample that using Windows based server (RRAS) to act as VPN server and working with Windows RADIUS/NPS server and use certificate based authentication method (Extensible Authentication Protocol-Transport
Layer Security (EAP-TLS) or PEAP-TLS without smart cards) for reference :
Checklist: Configure NPS for Dial-Up and VPN Access
http://technet.microsoft.com/en-us/library/cc754114.aspx
Thanks.
Tiger Li
Tiger Li
TechNet Community Support

SSO Certificate-based authentication problem

Hello,
I have successfully configured certificate-based authentication, and I am able to authenticate with a user certificate that I created with OCA which is stored in the user's profile in OID. Here lies my problem, it seems as if the authentication module (ssomappernickname) only validates against the first certificate stored in the user's profile(userCertificate attribute). This is after I add another certificate to the user's profile. Below is the problem I am describing during my tests:
Order of certificates stored in user's profile.
1. valid cert, invalid cert -> successful authentication
2. invalid cert, valid cert -> unsuccessful authentication (it should STILL be successful here)
Shouldn't the SSO authentication module search each binary certificate in the multi-value attribute for the correct certificate? Or is there some LDAP control that I need to set in order to get this problem solved? Basically, I need to be able let user's perform certificate authentication against multiple certificates in their profiles.

For the benefit of anyone finding this, in my case this problem was resolved by reimporting my internal CA's Cert into the ASA.
I suspect I had inadvertently imported an expired CA Cert into the ASA and this rather un-informative error 1838 is trying to tell you this.

OWA and ActiveSync certificate based authentication

I have Exchange 2013 CU3 installed and want to activate the certificate based authentication for ActiveSync and OWA. But I want to have the login without certificate as well for users without a certificate.
I already found some information how to do that on Exchange 2010 and I already did all steps to activate it.
But at one point I cant find anything to configure in Exchange 2013. So I have activated the AD certificate based authentication in ISS and configured the OWA folder in IIS to accept client certificates. This seems to work as I get asked to use the certificate
when I open the OWA page. But then I am landing on the OWA login page where I have to enter username and password.
So it seems that I am missing something. In the tutorials for Exchange 2010 they activate the certificate based authentication in the Management console. But I cant find anything in ECP to activate.
Can anyone help me?

Hi,
We can create an additional Web Site in IIS to configure additional OWA and ECP virtual directory for external access. And configuring the Default Web Site for internal access.
Then we can configure internal one with Integrated Windows authentication and Basic authentication while the external one configured for forms-based authentication of Domain\user name format. For more information about
Configuring Multiple OWA/ECP Virtual Directories, we can refer to:
https://blogs.technet.com/b/exchange/archive/2011/01/17/configuring-multiple-owa-ecp-virtual-directories-on-exchange-2010-client-access-server.aspx
Thanks,
Winnie Liang
TechNet Community Support

User Password vs. Certificate based authentication

We have used the iPhone since day one and grown from 20 to 400 users over the years. Now managability is an issue and certificate based authentication is about to be replaced with user password only. Critics deny cutting some slack because of possible man in the middle attack scenarios. Is it true that user password can be exposed between the device and exchange server? Is it possible to read User/Password using a man in the middle attack?

We have used the iPhone since day one and grown from 20 to 400 users over the years. Now managability is an issue and certificate based authentication is about to be replaced with user password only. Critics deny cutting some slack because of possible man in the middle attack scenarios. Is it true that user password can be exposed between the device and exchange server? Is it possible to read User/Password using a man in the middle attack?

Certificate based authentication with iOS Client

Hello experts,
I have a question regarding the certificate based authentication in SAP Mobile Documents. With the Android Client it is "easy" possible to use certificate based authentication by just sending the user certificate to the Android device (using mail, MDM or whatever).
For the iOS App it is written that the user has to sync the certificate to the device using iTunes sync. Is this really the only possibility to bring the certificate to the iOS device so that the App can use it? I have successfully tested by adding the certificate using iTunes, but I cannot make it working using MDM to push the certificate to the device. SAP Mobile Documents just cant see the installed certificate.
Am I doing something wrong here?
Thanks for your help.
Ernst

Hi, I don't think this is supported on iOS right now. Something for future ....

Certificate based authentication to Reporting services (2008r2)

Is it possible to use certificate based authentication to reporting services website? I found solutions for windows basic and forms authentication types.
Best regards

Hi,
Reporting Services uses the HTTP SSL (Secure Sockets Layer) service to establish encrypted connections to a report server. If you have certificate (.cer) file installed in a local certificate store on the report server computer, you can bind the certificate
to a Reporting Services URL reservation to support report server connections through an encrypted channel.
Server certificates are installed on the Web server and typically require no additional configuration on the clients. Server certificates allow the clients to verify the identity of the server.
Because, some Web sites and applications might require client certificates. Client certificates are installed on the client and allow the server to authenticate the clients. For more information about configuring client certificates, see
Enabling Client Certificates in IIS 6.0 . But Client certificates is not supported in the SSRS 2005 later version. So SSRS 2008 R2 will not allow the server to authenticate the clients.
More details information in article below for your reference:
Configuring a Report Server for Secure Sockets Layer (SSL) Connections
If you still have any problem, please feel free to ask.
Regards,
Vicky Liu
Vicky Liu
TechNet Community Support

How does Certificate based authentication work?

We are doing
Certificate based authentication in an enterprise with android phones and exchange 2010.
We are using activesync to talk to exchange over SSL.
It is working.
I am trying to document HOW it works (on a fairly high level).
I have some information, but would like to know what happens when exchange gets the actual client auth cert from the device in the last part of the authentication process.
Does exchange forward it in toto to AD, since AD (and its related PKI service) created the cert?
Thanks.
Mac

Hi Ainm
Exchange ActiveSync supports several types of user authentication. By default, Exchange ActiveSync is configured to use Basic authentication. This transmits the user name and password in clear text. You can configure Exchange ActiveSync to use certificate-based
authentication. This method uses a certificate on both the server and the device to validate the connection from the device to the server.
There are differences between the mobile operating systems as to what format they like their certificates in, but both Windows Mobile and iPhone are happy to use pfx files whereas Android prefers it as a p12 (which can be just a renamed pfx file if you like).
Certificate based authentication is done via kerberos and yes Exchange should perform the lookup with AD for verifying that your certificate is good and valid.
Remember to mark as helpful if you find my contribution useful or as an answer if it does answer your question.That will encourage me - and others - to take time out to help you Check out my latest blog posts on http://exchangequery.com Thanks Sathish
(MVP)

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