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You can find an introduction to XML signature here. The implementation of the component is based on JSR 105, the Java API corresponding to the W3C standard and supports the Apache Santuario and the JDK provider for JSR 105. The implementation will first try to use the Apache Santuario provider; if it does not find the Santuario provider, it will use the JDK provider. Further, the implementation is DOM based.

Since Camel 2.15.0 we also provide support for XAdES-BES/EPES for the signer endpoint; see subsection "XAdES-BES/EPES for the Signer Endpoint".

Maven users will need to add the following dependency to their pom.xml for this component:

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Available as of Camel 2.15.0 

ŸXML Advanced Electronic Signatures (XAdES) defines extensions to XML Signature. This standard was defined by the European Telecomunication Standards Institute and allows you to create signatures which are compliant to the European Union Directive (1999/93/EC) on a Community framework for electronic signatrues. XAdES defines different sets of signature properties which are called signature forms. We support the signature forms Basic Electronic Signature (XAdES-BES) and Explicit Policy Based Electronic Signature (XAdES-EPES) for the Signer Endpoint. The forms Electronic Signature with Validation Data XAdES-T and XAdES-C are not supported.

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We support the following properties of the XAdES-EPES form ("?" denotes zero or one occurenceoccurrence):

 

Code Block
languagexml
titleXAdES-EPES Properties
        <QualifyingProperties Target>
            <SignedProperties>
                <SignedSignatureProperties>
                    (SigningTime)?
                    (SigningCertificate)?
                    (SignaturePolicyIdentifier)
                    (SignatureProductionPlace)?
                    (SignerRole)?
                </SignedSignatureProperties>
                <SignedDataObjectProperties>
                    (DataObjectFormat)?
                    (CommitmentTypeIndication)?
                </SignedDataObjectProperties>
            </SignedProperties>
        </QualifyingProperties>

The properties of the XAdES-BES form are the same except that the SignaturePolicyIdentifier property is missing

You can configure the XAdES-BES/EPES properties via the bean org.apache.camel.component.xmlsecurity.api.XAdESSignatureProperties or org.apache.camel.component.xmlsecurity.api.DefaultXAdESSignatureProperties. XAdESSignatureProperties does support all properties mentioned above except the SigningCertificate property. To get the SigningCertificate property, you must overwrite either the method XAdESSignatureProperties.getSigningCertificate() or XAdESSignatureProperties.getSigningCertificateChain(). The class DefaultXAdESSignatureProperties overwrites the method getSigningCertificate() and allows you to specify the signing certificate via a keystore and alias. The following example shows all parameters which you can specify, if you do not need certain parameters you can just omit them.

 

 

 

Code Block
languagejava
titleXAdES-BES/EPES example in Java DSL
        Keystore keystore = ... // load a keystore
        DefaultKeyAccessor accessor = new DefaultKeyAccessor();
        accessor.setKeyStore(keystore);
        accessor.setPassword("password");
        accessor.setAlias("cert_alias"); // signer key alias
 
        DefaultXAdESSignatureProperties props = new DefaultXAdESSignatureProperties();
        props.setKeystore(keystore));
        props.setAlias("cert_alias"); // specify the alias of the signing certificate in the keystore = signer key alias
        props.setAddSigningTime(true);
        props.setDigestAlgorithmForSigningCertificate(DigestMethod.SHA256);
        props.setSigningCertificateURIs(Collections.singletonList("http://certuri"));
        // policy
        props.setSignaturePolicy(XAdESSignatureProperties.SIG_POLICY_EXPLICIT_ID);
        // also the values XAdESSignatureProperties.SIG_POLICY_NONE and XAdESSignatureProperties.SIG_POLICY_IMPLIED are possible
        // then you must not specify any further policy parameters
        props.setSigPolicyId("urn:oid:1.2.840.113549.1.9.16.6.1");
        props.setSigPolicyIdQualifier("OIDAsURN");
        props.setSigPolicyIdDescription("invoice version 3.1");
        props.setSignaturePolicyDigestAlgorithm(DigestMethod.SHA256);
        props.setSignaturePolicyDigestValue("Ohixl6upD6av8N7pEvDABhEL6hM=");
        props.setSigPolicyQualifiers(Arrays
            .asList(new String[] {
                "<SigPolicyQualifier xmlns=\"http://uri.etsi.org/01903/v1.3.2#\"><SPURI>http://test.com/sig.policy.pdf</SPURI><SPUserNotice><ExplicitText>display text</ExplicitText>"
                    + "</SPUserNotice></SigPolicyQualifier>", "category B" }));
        props.setSigPolicyIdDocumentationReferences(Arrays.asList(new String[] {"http://test.com/policy.doc.ref1.txt",
            "http://test.com/policy.doc.ref2.txt" }));
        // production place
        props.setSignatureProductionPlaceCity("Munich");
        props.setSignatureProductionPlaceCountryName("Germany");
        props.setSignatureProductionPlacePostalCode("80331");
        props.setSignatureProductionPlaceStateOrProvince("Bavaria");
        //role
        props.setSignerClaimedRoles(Arrays.asList(new String[] {"test",
            "<a:ClaimedRole xmlns:a=\"http://uri.etsi.org/01903/v1.3.2#\"><TestRole>TestRole</TestRole></a:ClaimedRole>" }));
        props.setSignerCertifiedRoles(Collections.singletonList(new XAdESEncapsulatedPKIData("Ahixl6upD6av8N7pEvDABhEL6hM=",
            "http://uri.etsi.org/01903/v1.2.2#DER", "IdCertifiedRole")));
        // data object format
        props.setDataObjectFormatDescription("invoice");
        props.setDataObjectFormatMimeType("text/xml");
        props.setDataObjectFormatIdentifier("urn:oid:1.2.840.113549.1.9.16.6.2");
        props.setDataObjectFormatIdentifierQualifier("OIDAsURN");
        props.setDataObjectFormatIdentifierDescription("identifier desc");
        props.setDataObjectFormatIdentifierDocumentationReferences(Arrays.asList(new String[] {
            "http://test.com/dataobject.format.doc.ref1.txt", "http://test.com/dataobject.format.doc.ref2.txt" }));
        //commitment
        props.setCommitmentTypeId("urn:oid:1.2.840.113549.1.9.16.6.4");
        props.setCommitmentTypeIdQualifier("OIDAsURN");
        props.setCommitmentTypeIdDescription("description for commitment type ID");
        props.setCommitmentTypeIdDocumentationReferences(Arrays.asList(new String[] {"http://test.com/commitment.ref1.txt",
            "http://test.com/commitment.ref2.txt" }));
        props.setCommitmentTypeQualifiers(Arrays.asList(new String[] {"commitment qualifier",
            "<c:CommitmentTypeQualifier xmlns:c=\"http://uri.etsi.org/01903/v1.3.2#\"><C>c</C></c:CommitmentTypeQualifier>" }));
 
 beanRegistry.bind("xmlSignatureProperties",props);
 beanRegistry.bind("keyAccessorDefault",keyAccessor);
 
 from("direct:xades").to("xmlsecurity:sign://xades?keyAccessor=#keyAccessorDefault&properties=#xmlSignatureProperties")
                     .to("mock:result");

 

 

 

  



See Also