Soap:How to calculate SignatureValue

Question

jaydipsinh 0 Newbie Poster

13 Years Ago

I am using Soap

<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="#id-4453123">
<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>'.$ssDigest.'</ds:DigestValue>
</ds:Reference>
</ds:SignedInfo>
<ds:SignatureValue>...How to calculate Signature Value.....</ds:SignatureValue>

..............

Thanks in advance

xml

Edited 13 Years Ago by peter_budo because: Keep It Clear - Do wrap your programming code blocks within [code] ... [/code] tags

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Latest Post 13 Years Ago Latest Post by jaydipsinh

pritaeas 2,194 ¯\_(ツ)_/¯

13 Years Ago

This should be described in the documentation of the soap service you're using.

If it is sha1 and you're using php, then sha1('something here') should do it.

Edited 13 Years Ago by pritaeas because: n/a

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jaydipsinh 0 Newbie Poster · Answer 1 · 2011-01-11T18:16:31+00:00

Thanks a lot Brother.

But i have already use sha1.....but facing error.
[faultstring] => Hash values do not match. (from client)

i have also referance site like :
http://www.cryptosys.net/pki/xmldsig-ChileSII.html#creatingxmldsig

But i cann't generate my Signature Value and facing error......Hash Values do not match..plz help me

pritaeas 2,194 ¯\_(ツ)_/¯ Moderator Featured Poster · Answer 2 · 2011-01-11T18:21:48+00:00

You should have a look at the demos on that page. sha1() is not enough, you need to canonicalize the data as described.

jaydipsinh 0 Newbie Poster · Answer 3 · 2011-01-11T18:36:26+00:00

you are right brother........

$dom = new DOMDocument();
$dom->loadXML($myXMLData);
$canonicalized = $dom->C14N(); // for the whole document

$ssDigest = base64_encode(pack("H*", sha1($canonicalized)));

from above code we easily get a DigestValue...and i have read in somewhere....encrypt of Digestvalue is SignatureValue.

i try manytimes but not get a solution....

how to get SignatureValue from DigestValue ??