WSS4j元素在簽名SOAP消息期間排序

Question

我正在用Java實現Web服務客戶端，它使用wss4j 1.6.8進行WS-Security（為了更加精確，我需要簽署SOAP消息）。 服務器端要求請求具有以下結構：

<Envelope>
    <Header>
        <wsse:Security mustUnderstand="1">
            **<wsu:Timestamp wsu:Id="Timestamp-913ca68e-05ed-44e1-9d6c-b2f293da5a1d">
                <wsu:Created>2012-12-21T11:37:31Z</wsu:Created>
                <wsu:Expires>2012-12-21T11:42:31Z</wsu:Expires>
            </wsu:Timestamp>**
            <wsse:BinarySecurityToken>
                MIID2jCCAsKg...
            </wsse: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="#Timestamp-913ca68e-05ed-44e1-9d6c-b2f293da5a1d">
                        <Transforms>
                            <Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
                        </Transforms>
                        <DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
                        <DigestValue>jdVY1HaDLusqO9UcxASE/GQHxyo=</DigestValue>
                    </Reference>
                    <Reference URI="#Body-e344eef1-2d8a-42d0-8a30-361ee61a8617">
                        <Transforms>
                            <Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
                        </Transforms>
                        <DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
                        <DigestValue>L60mQelZERvXgLEgWlW50uJNqEA=</DigestValue>
                    </Reference>
                </SignedInfo>
                <SignatureValue>
                    NmgACUqrYYc/Kp/F...
                </SignatureValue>
                <KeyInfo>
                    <wsse:SecurityTokenReference xmlns="">
                        <wsse:Reference URI="#SecurityToken-3f054298-711c-4090-95c3-105e1093f3ba" ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3"/>
                    </wsse:SecurityTokenReference>
                </KeyInfo>
            </Signature>
        </wsse:Security>
    </S:Header>
    <S:Body>
        Body content...
    </S:Body>
</Envelope>

我的解決方案簽署了文檔（body和timestamp元素）但由於某種原因wss4j將timestamp元素放在該部分的底部，在<wsse:BinarySecurityToken>和<Signature>元素之后出錯了。 請查看簽約工作的來源：

 public static SOAPMessage signSoapMessage(SOAPMessage message, PrivateKey signingKey, X509Certificate signingCert, char[] passphrase) throws WSSecurityException {

    final String alias = "signingKey";
    final int signatureValidityTime = 3600; // 1hour in seconds

    WSSConfig config = new WSSConfig();
    config.setWsiBSPCompliant(false);

    WSSecSignature builder = new WSSecSignature(config);

    builder.setX509Certificate(signingCert);
    builder.setUserInfo(alias, new String(passphrase));
    builder.setUseSingleCertificate(true);
    builder.setKeyIdentifierType(WSConstants.BST_DIRECT_REFERENCE);

    try {
        Document document = DanskeUtils.toDocument(message);
        WSSecHeader secHeader = new WSSecHeader();
        secHeader.setMustUnderstand(true);
        secHeader.insertSecurityHeader(document);

        WSSecTimestamp timestamp = new WSSecTimestamp();
        timestamp.setTimeToLive(signatureValidityTime);
        document = timestamp.build(document, secHeader);

        List<WSEncryptionPart> parts = new ArrayList<WSEncryptionPart>();
        WSEncryptionPart timestampPart = new WSEncryptionPart("Timestamp", WSConstants.WSU_NS, "");
        WSEncryptionPart bodyPart = new WSEncryptionPart(WSConstants.ELEM_BODY, WSConstants.URI_SOAP11_ENV, "");
        parts.add(timestampPart);
        parts.add(bodyPart);
        builder.setParts(parts);

        Properties properties = new Properties();
        properties.setProperty("org.apache.ws.security.crypto.provider", "org.apache.ws.security.components.crypto.Merlin");
        Crypto crypto = CryptoFactory.getInstance(properties);
        KeyStore keystore = KeyStore.getInstance("JKS");
        keystore.load(null, passphrase);
        keystore.setKeyEntry(alias, signingKey, passphrase, new Certificate[]{signingCert});
        ((Merlin) crypto).setKeyStore(keystore);
        crypto.loadCertificate(new ByteArrayInputStream(signingCert.getEncoded()));

        document = builder.build(document, crypto, secHeader);
        return Utils.updateSoapMessage(document, message);
    } catch (Exception e) {
        throw new WSSecurityException(WSSecurityException.Reason.SIGNING_ISSUE, e);
    }
}

你能幫我澄清一下如何在簽署文件之前改變元素的順序嗎？ 謝謝！

Answer 1

WS-SEC規范說：“當元素被添加到標題塊時，它們應該被添加到現有元素之前。”

因此，如果您首先添加時間戳，它將位於ws-header中的任何現有子元素之上。 由於您在添加timstamp后簽名消息，因此簽名信息將再次預先添加到標頭中，因此它將顯示在timestamp元素上方。

如果您需要將timestamp元素顯示在最頂層，請將其作為最終進程添加到標頭中

Answer 2

構建簽名后，您可以添加以下行：

timestamp.prependToHeader(secHeader);

它會將timestamp元素放在BinarySecurityToken元素之上。