If you only need to create a cononicalized XML it is very simple.
You do the canonicalization manually.
It means eliminating whitespace between elements.
Putting attributes in alphabetical order.

When the signatures verifies you are done :-)

Anders

On 2012-02-28 07:38, Pankaj wrote:
> I want to consume WCF web-service which uses X.509 certificate for
> mutual authentication. I had imported certificates using keytools in
> BKS keystore & able to use in android code. Now for mutual
> authentication i need to create web-request which have message digest
> & signature in it
> 
> <s:Header>
> <o:Security xmlns:o="http://docs.oasis-open.org/wss/2004/01/
> oasis-200401-wss-wssecurity-secext-1.0.xsd" s:mustUnderstand="1">
> <u:Timestamp u:Id="_0">
> <u:Created>2012-02-21T04:45:06.429Z</u:Created>
> <u:Expires>2012-02-21T04:50:06.429Z</u:Expires>
> </u:Timestamp>
> <o:BinarySecurityToken u:Id="uuid-e35f5271-3c4e-47c7-
> ba34-8d995e414ba3-1" ValueType="http://docs.oasis-open.org/wss/2004/01/
> oasis-200401-wss-x509-token-profile-1.0#X509v3" EncodingType="http://
> docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-
> security-1.0#Base64Binary">
> MIICbzCCAdygAwIBAgIQfjyZ229iN4tAbV0fiYiVyTAJBgUrDgMCHQUAMD8xPTA7BgNVBAMTNGNsaWVudC5iNTRiYTFkN2U2NzY0ZDdkOWRiMDA3YTgyNmM5ZGE5Ny5jbG91ZGFwcC5uZXQwHhcNMTIwMjE2MTY0MjI1WhcNMzkxMjMxMjM1OTU5WjA/
> MT0wOwYDVQQDEzRjbGllbnQuYjU0YmExZDdlNjc2NGQ3ZDlkYjAwN2E4MjZjOWRhOTcuY2xvdWRhcHAubmV0MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDRW
> +Di90XDGulLybdBboUlOilxvbcnfow+NhoNW80uNjmGQiQpxP0oNnYT7RKJ
> +nP3+sZxUfRfazLgvOTFn0F9SIFQ9T4I5LNFMHhDfExoT0k/
> aeF870Euy07BiwF7eXw6toSv1dKwKavq20szbIr/NeabIEDS/GzKY6P0/
> TOQfwIDAQABo3QwcjBwBgNVHQEEaTBngBCNb6YOYI3RBR64WvVUjQtPoUEwPzE9MDsGA1UEAxM0Y2xpZW50LmI1NGJhMWQ3ZTY3NjRkN2Q5ZGIwMDdhODI2YzlkYTk3LmNsb3VkYXBwLm5ldIIQfjyZ229iN4tAbV0fiYiVyTAJBgUrDgMCHQUAA4GBAG5v1DZmXQKcaxNzz2VYDZ8aYYrYRQwU4lrBKlI0CnrkcZwQGPmRxdkiET9D91kcN/
> fmq90nj1F5FZoqhzeT1moqGKXKT9HRX8j6Ln1QDhsr+0JfgJW9/
> IFaQI14xKwr8bw4+DxIyp0IMpSw9biULmIQ1QuTzfKDEowlcQhsik+E
> </o:BinarySecurityToken>
> <Signature xmlns="http://www.w3.org/2000/09/xmldsig#";>
> <SignedInfo>
> <CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-
> c14n#"/>
> <SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-
> sha1"/>
> <Reference URI="#_0">
> <Transforms>
> <Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
> </Transforms>
> <DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
> <DigestValue>Soj1m/E157CempDHHC6c6gZBd1E=</DigestValue>
> </Reference>
> </SignedInfo>
> <SignatureValue>
> kqsIYUc3uYoQpuWVWYOio4KcGpon+3wDDhsAzVgZVljQxEhF7z1JS/
> qzw9ELYCn2JbYIkWMtEeYfXRtPvjrPM1fjJiqbXSKq7jHEeVtMQnOytAHRL1ZFA
> +dLq4spJQR7uYnmJ1lmgQnu1kYcteSmD29Xm5e5dPUnz4yap3p7zC4=
> </SignatureValue>
> <KeyInfo>
> <o:SecurityTokenReference>
> <o:Reference ValueType="http://docs.oasis-open.org/wss/2004/01/
> oasis-200401-wss-x509-token-profile-1.0#X509v3" URI="#uuid-
> e35f5271-3c4e-47c7-ba34-8d995e414ba3-1"/>
> </o:SecurityTokenReference>
> </KeyInfo>
> </Signature>
> </o:Security>
> </s:Header>
> 
> But to create message digest we need perform XML canonicalization with
> "http://www.w3.org/2001/10/xml-exc-c14n#"; transform algorithm. I am
> not able to found any API or library which perform above task.
> 
> I had used xmlsec jar but I guess it is not supported by android and
> also used all the option which I found after googling.
> 
> Please guide me how to call WCF web-service which involve X.509
> certificate based mutual authentication.
> 

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