Hello Colm,
The only Require* I have in my policy file are:
- <sp:RequireThumbprintReference/> for InitiatorToken and RecipientToken
- <sp:RequireSignatureConfirmation/>
Does one of the above policy assertion describes the way we have to reference
the X509 token in the <wsse:SecurityTokenReference> ?
If yes, I suppose that it is the <sp:RequireThumbprintReference/> but I don't
see the link with 3 possible options we may have for token reference:
- Reference to a Subject Key Identifier
- Reference to a Binary Security Token
- Reference to an Issuer and Serial Number
According to me, the links between policy assertions and token reference looks
like below:
- Reference to a Subject Key Identifier is required by the
<sp:RequireKeyIdentifierReference /> presence
- Reference to a Binary Security Token is required by the
<sp:RequireEmbeddedTokenReference /> presence
- Reference to an Issuer and Serial Number is requires by the
<sp:RequireIssuerSerialReference /> presence
This is why I am a little bit lost :-( and though requires your help.
Best Regards.
-----Original Message-----
From: Colm O hEigeartaigh [mailto:[email protected]]
Sent: mardi 10 décembre 2013 11:28
To: COURTAULT Francois
Cc: Andrei Shakirin; [email protected]
Subject: Re: Spec questions
No, if you have a Require* Assertion, then only that is allowed to reference
that token.
Colm.
On Mon, Dec 9, 2013 at 5:18 PM, COURTAULT Francois <
[email protected]> wrote:
> Hello guys,
>
> Thanks a lot for your explanations :-) The security assertion I only
> have is RequireThumbprintReference.
>
> So in such case, does that mean that the 3 ways to reference an X.509
> token in <wsse:SecurityTokenReference>:
> * Reference to a Subject Key Identifier
> * Reference to a Binary Security Token
> * Reference to an Issuer and Serial Number
>
> are allowed ?
>
> Best regards.
>
> -----Original Message-----
> From: Andrei Shakirin [mailto:[email protected]]
> Sent: lundi 9 décembre 2013 15:46
> To: [email protected]; COURTAULT Francois
> Cc: [email protected]
> Subject: RE: Spec questions
>
> Hi Colm,
>
> That was my missing piece of the my puzzle :)
>
> Thanks,
> Andrei.
>
> From: Colm O hEigeartaigh [mailto:[email protected]]
> Sent: Montag, 9. Dezember 2013 11:33
> To: COURTAULT Francois
> Cc: Andrei Shakirin; [email protected]
> Subject: Re: Spec questions
>
>
> > I also interpret <sp:ProtectTokens/> in this way. If it is active,
> > the
> signature must protect the used token as well:
>
> +1.
>
> > They can be controlled through following policy assertions: ...
> Note that the MustSupport* policy assertions only state the the
> message initiator/recipient must be able to process various ways of
> identifying keys. It doesn't mandate them. To do this, take a look at
> the various policies associated with a particular token. For example,
> the X509Token policy has the following optional policies:
>
> <sp:RequireKeyIdentifierReference ... /> ?
> <sp:RequireIssuerSerialReference ... /> ?
> <sp:RequireEmbeddedTokenReference ... /> ?
> <sp:RequireThumbprintReference ... /> ?
> Colm.
>
>
> On Fri, Dec 6, 2013 at 6:17 PM, COURTAULT Francois <
> [email protected]> wrote:
> Hello Andrei,
>
> Thanks a lot for your interpretation :-) Colm could you confirm please
> ?
>
> For my second question regarding SecurityTokenReference, I have only
> the following policy assertions:
> <sp:MustSupportRefKeyIdentifier/>
> <sp:MustSupportRefIssuerSerial/>
> <sp:MustSupportRefThumbprint/>
> <sp:MustSupportRefEncryptedKey/>
> <sp:RequireSignatureConfirmation/>
>
> My interpretation about MustSupportRefThumbprint, for example, is that
> the initiator and the recipient MUST be able to process references
> using Token thumbprints. This means that any URI (a reference), in the
> Signature section, which contains token thumbprint like
> URI="#X509-21B185F9A383FC218D138383549326938", has to be processed: am
> I correct ?
>
> If we have <sp:MustSupportRefKeyIdentifier/>, does that mean that we
> have to have for the SecurityToken reference something like:
> <wsse:SecurityTokenReference
> xmlns:wsse="
> http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-sec
> ext-1.0.xsd
> "
> xmlns:wsse11="
> http://docs.oasis-open.org/wss/oasis-wss-wssecurity-secext-1.1.xsd";
> xmlns:wsu="
> http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-uti
> lity-1.0.xsd
> "
> wsse11:TokenType="
> http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-pro
> file-1.0#X509v3
> "
>
> wsu:Id="str_22Ps0gftJ20pYdu9">
> <wsse:KeyIdentifier
> EncodingType="
> http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-s
> ecurity-1.0#Base64Binary
> "
> ValueType="
> http://docs.oasis-open.org/wss/oasis-wss-soap-message-security-1.1#Thu
> mbprintSHA1 ">KRyiNJ91OZnOVXzLWazn3ISSs+s=</wsse:KeyIdentifier>
> </wsse:SecurityTokenReference>
>
> instead of
> <wsse:SecurityTokenReference
>
> wsu:Id="STR-21B185F9A383FC218D138383549326940">
> <wsse:Reference
> URI="#X509-21B185F9A383FC218D138383549326938"
> ValueType="
> http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3";
> />
> </wsse:SecurityTokenReference>
> ?
>
> Best Regards.
>
> -----Original Message-----
> From: Andrei Shakirin [mailto:[email protected]]
> Sent: vendredi 6 décembre 2013 18:01
> To: [email protected]
> Cc: [email protected]; COURTAULT Francois
> Subject: RE: Spec questions
>
> Hi,
>
> Colm knows the subject better, anyway short answer from me:
>
> > -----Original Message-----
> > From: COURTAULT Francois [mailto:[email protected]]
> > Sent: Donnerstag, 5. Dezember 2013 14:32
> > To: [email protected]
> > Cc: [email protected]
> > Subject: Spec questions
> >
> > Hello everyone,
> >
> > I try to understand what policy requires that a Certificate
> > reference has to be included in the SignedInfo section.
> > Is it due to <sp:ProtectTokens/> policy assertion ? If I read the
> > spec at §6.5, it was stated that:
> > "This boolean property specifies whether signatures must cover the
> > token used to generate that signature. If the value is 'true', then
> > each token used to generate a signature MUST be covered by that
> signature."
> >
> > My interpretation of this sentence is that the token used for the
> > signature has to be included in the signature so that the SignedInfo
> > section has to contain the token reference: is my interpretation
> > correct
> ?
> > It also means that if we use Asymmetric binding, it is mandatory to
> > have in the SignedInfo section something like:
> > <ds:Reference URI="X509-<thumbprint>>: right ?
>
> I also interpret <sp:ProtectTokens/> in this way. If it is active, the
> signature must protect the used token as well:
>
> <wsse:BinarySecurityToken>
> xmlns:wsu="
> http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-uti
> lity-1.0.xsd
> "
> EncodingType="
> http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-messa
> ge-security-1.0#Base64Binary"
> ValueType="
> http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3";
> wsu:Id="CertId-3201971"> ...
> </wsse:BinarySecurityToken>
>
> <ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#";
> Id="Signature-20079748">
> <ds:SignedInfo>
> <ds:CanonicalizationMethod \
> Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"; />
> <ds:SignatureMethod Algorithm="
> http://www.w3.org/2000/09/xmldsig#rsa-sha1"; \ /> ...
> <ds:Reference URI="#CertId-3201971">
> <ds:Transforms>
> <ds:Transform Algorithm="
> http://www.w3.org/2001/10/xml-exc-c14n#"; />
> </ds:Transforms>
> <ds:DigestMethod Algorithm="
> http://www.w3.org/2000/09/xmldsig#sha1"; />
> <ds:DigestValue>
> 5eik4SB6Q0N9fWnyA9HDtDnfjeY=</ds:DigestValue>
> </ds:Reference>
> ...
> </ds:SignedInfo>
> </ds:Signature>
>
> >
> > I have also another questions. In the spec at §3.2 Token References,
> > it is stated that the:
> > " <wsse:SecurityTokenReference> element MAY reference an X.509 token
> > type by one of the following means:
> >
> > · Reference to a Subject Key Identifier
> >
> > · Reference to a Binary Security Token
> >
> > · Reference to an Issuer and Serial Number"
> > Could you confirm me that the 3 means are possible and equivalent ?
> > Or depending on a security policy assertion, we have to use only one
> > of these methods ?
> >
>
> 1. The Reference to a Subject Key Identifier means that
> SecurityTokenReference contains KeyIdentifier with X509 SubjectDN.
> X509 certificate can be found based on this data.
> 2. The Reference to a Binary Security Token means that X509 is
> embedded into message security header and just referenced from the signature:
> <wsse:BinarySecurityToken
> EncodingType="
> http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-s
> ecurity-1.0#Base64Binary
> "
> ValueType="
> http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-pro
> file-1.0#X509v3
> "
>
> wsu:Id="X509-21B185F9A383FC218D138383549326938">...
> </wsse:BinarySecurityToken>
> ...
> <wsse:SecurityTokenReference
>
> wsu:Id="STR-21B185F9A383FC218D138383549326940">
> <wsse:Reference
> URI="#X509-21B185F9A383FC218D138383549326938"
> ValueType="
> http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3";
> />
> </wsse:SecurityTokenReference> 3. The
> Reference to an Issuer and Serial Number is other way to identify
> X509 certificate - provider Issuer DN and serial number that also
> identify certificate unambiguously. In this case
> SecurityTokenReference contains X509Data element with X509IssuerSerial.
>
> AFAIK all are possible.
>
> They can be controlled through following policy assertions:
>
> §9.2:
> /sp:Wss11/wsp:Policy/sp:MustSupportRefKeyIdentifier
> This optional element is a policy assertion indicates that the [Key
> Identifier References] property is set to 'true'.
>
> /sp:Wss11/wsp:Policy/sp:MustSupportRefIssuerSerial
> This optional element is a policy assertion indicates that the [Issuer
> Serial References] property is set to 'true'.
>
> /sp:Wss11/wsp:Policy/sp:MustSupportRefExternalURI
> This optional element is a policy assertion indicates that the
> [External URI References] property is set to 'true'.
>
> /sp:Wss11/wsp:Policy/sp:MustSupportRefEmbeddedToken
> This optional element is a policy assertion indicates that the
> [Embedded Token References] property is set to 'true'.
>
> /sp:Wss11/wsp:Policy/sp:MustSupportRefThumbprint
> This optional element is a policy assertion indicates that the
> [Thumbprint References] property is set to 'true'.
>
> /sp:Wss11/wsp:Policy/sp:MustSupportRefEncryptedKey
> This optional element is a policy assertion indicates that the
> [EncryptedKey References] property is set to 'true'.
>
> /sp:Wss11/wsp:Policy/sp:RequireSignatureConfirmation
> This optional element is a policy assertion indicates that the
> [Signature Confirmation] property is set to 'true'.
>
> Regards,
> Andrei.
>
> >
> > Best Regards.
> >
> > ________________________________
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> This message and any attachments are intended solely for the
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> E-mails are susceptible to alteration. Our company shall not be liable
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>
>
> --
> Colm O hEigeartaigh
>
> Talend Community Coder
> http://coders.talend.com
>
> This message and any attachments are intended solely for the
> addressees and may contain confidential information. Any unauthorized
> use or disclosure, either whole or partial, is prohibited.
> E-mails are susceptible to alteration. Our company shall not be liable
> for the message if altered, changed or falsified. If you are not the
> intended recipient of this message, please delete it and notify the sender.
> Although all reasonable efforts have been made to keep this
> transmission free from viruses, the sender will not be liable for
> damages caused by a transmitted virus
>
--
Colm O hEigeartaigh
Talend Community Coder
http://coders.talend.com
This message and any attachments are intended solely for the addressees and may
contain confidential information. Any unauthorized use or disclosure, either
whole or partial, is prohibited.
E-mails are susceptible to alteration. Our company shall not be liable for the
message if altered, changed or falsified. If you are not the intended recipient
of this message, please delete it and notify the sender.
Although all reasonable efforts have been made to keep this transmission free
from viruses, the sender will not be liable for damages caused by a transmitted
virus
