Examples of javax.xml.crypto.dsig.keyinfo.KeyValue

javax.xml.crypto.dsig.keyinfo.KeyValue

3.org/TR/xmldsig-core/"> W3C Recommendation for XML-Signature Syntax and Processing. A KeyValue object contains a single public key that may be useful in validating the signature. The XML schema definition is defined as:

 <element name="KeyValue" type="ds:KeyValueType"/> <complexType name="KeyValueType" mixed="true"> <choice> <element ref="ds:DSAKeyValue"/> <element ref="ds:RSAKeyValue"/> <any namespace="##other" processContents="lax"/> </choice> </complexType> <element name="DSAKeyValue" type="ds:DSAKeyValueType"/> <complexType name="DSAKeyValueType"> <sequence> <sequence minOccurs="0"> <element name="P" type="ds:CryptoBinary"/> <element name="Q" type="ds:CryptoBinary"/> </sequence> <element name="G" type="ds:CryptoBinary" minOccurs="0"/>  <element name="Y" type="ds:CryptoBinary"/>  <element name="J" type="ds:CryptoBinary" minOccurs="0"/> <sequence minOccurs="0"> <element name="Seed" type="ds:CryptoBinary"/>  <element name="PgenCounter" type="ds:CryptoBinary"/>  </sequence> </sequence> </complexType> <element name="RSAKeyValue" type="ds:RSAKeyValueType"/> <complexType name="RSAKeyValueType"> <sequence> <element name="Modulus" type="ds:CryptoBinary"/>  <element name="Exponent" type="ds:CryptoBinary"/> </sequence> </complexType>

A KeyValue instance may be created by invoking the {@link KeyInfoFactory#newKeyValue newKeyValue} method of the{@link KeyInfoFactory} class, and passing it a {@link java.security.PublicKey} representing the value of the public key. Here is an example of creating a KeyValue from a {@link DSAPublicKey} of a {@link java.security.cert.Certificate} stored in a {@link java.security.KeyStore}:

 KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType()); PublicKey dsaPublicKey = keyStore.getCertificate("myDSASigningCert").getPublicKey(); KeyInfoFactory factory = KeyInfoFactory.getInstance("DOM"); KeyValue keyValue = factory.newKeyValue(dsaPublicKey);

This class returns the DSAKeyValue and RSAKeyValue elements as objects of type {@link DSAPublicKey} and {@link RSAPublicKey}, respectively. Note that not all of the fields in the schema are accessible as parameters of these types. @author Sean Mullan @author JSR 105 Expert Group @see KeyInfoFactory#newKeyValue(PublicKey)

            SignedInfo si = fac.newSignedInfo(fac.newCanonicalizationMethod(CanonicalizationMethod.INCLUSIVE,
                                                                            (C14NMethodParameterSpec) null),
                                              fac.newSignatureMethod(SignatureMethod.RSA_SHA1, null),
                                              Collections.singletonList(ref));
            DOMSignContext dsc = new DOMSignContext(privateKey, document.getDocumentElement());
            KeyValue keyValue = keyInfoFactory.newKeyValue(publicKey);
            KeyInfo ki = keyInfoFactory.newKeyInfo(Collections.singletonList(keyValue));
            XMLSignature signature = fac.newXMLSignature(si, ki);
            signature.sign(dsc);
        } catch (Exception e) {
            Logger.warn("Error while signing an XML document.", e);

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        }
        if (!(obj instanceof KeyValue)) {
            return false;
        }
        try {
            KeyValue kv = (KeyValue)obj;
            if (publicKey == null ) {
                if (kv.getPublicKey() != null) {
                    return false;
                }
            } else if (!publicKey.equals(kv.getPublicKey())) {
                return false;
            }
        } catch (KeyException ke) {
            // no practical way to determine if the keys are equal
            return false;

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    }
    
    private PublicKey parseKeyValue(
        Element keyInfoElement
    ) throws WSSecurityException {
        KeyValue keyValue = null;
        try {
            //
            // Look for a KeyValue object
            //
            keyValue = getKeyValue(keyInfoElement);
        } catch (javax.xml.crypto.MarshalException ex) {
            throw new WSSecurityException(WSSecurityException.FAILED_CHECK, null, null, ex);
        } 


        if (keyValue != null) {
            try {
                //
                // Look for a Public Key in Key Value
                //
                return keyValue.getPublicKey();
            } catch (java.security.KeyException ex) {
                LOG.error(ex.getMessage(), ex);
                throw new WSSecurityException(WSSecurityException.FAILED_CHECK, null, null, ex);
            }     
        } else {

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            case WSConstants.KEY_VALUE:
                java.security.PublicKey publicKey = certs[0].getPublicKey();
                
                try {
                    KeyValue keyValue = keyInfoFactory.newKeyValue(publicKey);
                    keyInfo = 
                        keyInfoFactory.newKeyInfo(
                            java.util.Collections.singletonList(keyValue), keyInfoUri
                        );
                } catch (java.security.KeyException ex) {

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    }
    
    private PublicKey parseKeyValue(
        Element keyInfoElement
    ) throws WSSecurityException {
        KeyValue keyValue = null;
        try {
            //
            // Look for a KeyValue object
            //
            keyValue = getKeyValue(keyInfoElement);
        } catch (javax.xml.crypto.MarshalException ex) {
            throw new WSSecurityException(WSSecurityException.FAILED_CHECK, null, null, ex);
        } 


        if (keyValue != null) {
            try {
                //
                // Look for a Public Key in Key Value
                //
                return keyValue.getPublicKey();
            } catch (java.security.KeyException ex) {
                LOG.error(ex.getMessage(), ex);
                throw new WSSecurityException(WSSecurityException.FAILED_CHECK, null, null, ex);
            }     
        } else {

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            SignedInfo si = fac.newSignedInfo(fac.newCanonicalizationMethod(CanonicalizationMethod.INCLUSIVE,
                                                                            (C14NMethodParameterSpec) null),
                                              fac.newSignatureMethod(SignatureMethod.RSA_SHA1, null),
                                              Collections.singletonList(ref));
            DOMSignContext dsc = new DOMSignContext(privateKey, document.getDocumentElement());
            KeyValue keyValue = keyInfoFactory.newKeyValue(publicKey);
            KeyInfo ki = keyInfoFactory.newKeyInfo(Collections.singletonList(keyValue));
            XMLSignature signature = fac.newXMLSignature(si, ki);
            signature.sign(dsc);
        } catch (Exception e) {
            Logger.warn("Error while signing an XML document.", e);

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        X509Certificate signingCertificate = signatureConfig.getSigningCertificateChain().get(0);


        List<Object> keyInfoContent = new ArrayList<Object>();


        if (signatureConfig.isIncludeKeyValue()) {
            KeyValue keyValue;
            try {
                keyValue = keyInfoFactory.newKeyValue(signingCertificate.getPublicKey());
            } catch (KeyException e) {
                throw new RuntimeException("key exception: " + e.getMessage(), e);
            }

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        case WSConstants.KEY_VALUE:
            java.security.PublicKey publicKey = certs[0].getPublicKey();
            
            try {
                KeyValue keyValue = keyInfoFactory.newKeyValue(publicKey);
                keyInfo = 
                    keyInfoFactory.newKeyInfo(
                        java.util.Collections.singletonList(keyValue), keyInfoUri
                    );
            } catch (java.security.KeyException ex) {

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    }
    
    private PublicKey parseKeyValue(
        Element keyInfoElement
    ) throws WSSecurityException {
        KeyValue keyValue = null;
        try {
            //
            // Look for a KeyValue object
            //
            keyValue = getKeyValue(keyInfoElement);
        } catch (javax.xml.crypto.MarshalException ex) {
            throw new WSSecurityException(WSSecurityException.FAILED_CHECK, null, null, ex);
        } 


        if (keyValue != null) {
            try {
                //
                // Look for a Public Key in Key Value
                //
                return keyValue.getPublicKey();
            } catch (java.security.KeyException ex) {
                LOG.error(ex.getMessage(), ex);
                throw new WSSecurityException(WSSecurityException.FAILED_CHECK, null, null, ex);
            }     
        } else {

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     SignatureMethod signatureMethodObj = fac.newSignatureMethod(signatureMethod, null);
     SignedInfo si =  fac.newSignedInfo (canonicalizationMethod, signatureMethodObj ,
                             referenceList);  
     
     KeyInfoFactory kif = fac.getKeyInfoFactory(); 
     KeyValue kv = kif.newKeyValue(publicKey);
     KeyInfo ki = kif.newKeyInfo(Collections.singletonList(kv)); 


     XMLSignature signature = fac.newXMLSignature(si, ki); 


     signature.sign(dsc);

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