XadessignedProperties的哈希值不准确

Question

I have an UBL XML file and need to hash sha256 for xadesSignedProperties and the part need to be hash is :

<xades:QualifyingProperties xmlns:xades="http://uri.etsi.org/01903/v1.3.2#" Target="signature">
                           <xades:SignedProperties Id="xadesSignedProperties">
                              <xades:SignedSignatureProperties>
                                 <xades:SigningTime>2021-02-25T12:57:51Z</xades:SigningTime>
                                 <xades:SigningCertificate>
                                    <xades:Cert>
                                       <xades:CertDigest>
                                          <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
                                          <ds:DigestValue>9ef6c0b90ae609868bb614772e1d5375464ed1a1793ded751feb1e3414980f7c</ds:DigestValue>
                                       </xades:CertDigest>
                                       <xades:IssuerSerial>
                                          <ds:X509IssuerName>CN=CommonName,O=GAZT,L=Katowice,ST=Silesia,C=PL</ds:X509IssuerName>
                                          <ds:X509SerialNumber>15007377309689649296</ds:X509SerialNumber>
                                       </xades:IssuerSerial>
                                    </xades:Cert>
                                 </xades:SigningCertificate>
 </xades:SignedSignatureProperties>

The value it should be this 2ab365b063238318fdeac9c2957b135ef8a6727691fc4d81982b5bdd2cec9792:

 <ds:Reference Type="http://www.w3.org/2000/09/xmldsig#SignatureProperties"
                                      URI="#xadesSignedProperties">
                           <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
                           <ds:DigestValue>2ab365b063238318fdeac9c2957b135ef8a6727691fc4d81982b5bdd2cec9792</ds:DigestValue>
</ds:Reference>

but don't know how要获得相同的摘要？

对此有任何想法吗？

Answer 1

DS：参考删除不是“ Xades：fimelyingproperties”元素，而是“ Xades：signedProperties”元素的ID ='XadessignedProperties'。
参见 xmldsig 规范有关引用XML Nodes的更多详细信息。

因此，您需要在上面复制的节点上计算哈希，而是在“ Xades：signedproperties”及其内容上计算哈希。