Java CertificateFactory.generateCertPath方法代碼示例

import java.security.cert.CertificateFactory; //導入方法依賴的package包/類
private Certificate[] tryParsePKIPathChain(File chainFile)
        throws IOException, FileNotFoundException, CertificateException {

    Certificate[] internalCertificateChain = null;
    CertificateFactory cf = CertificateFactory.getInstance("X.509");

    try (FileInputStream inputStream = new FileInputStream(chainFile)) {
        CertPath certPath = cf.generateCertPath(inputStream);
        List<? extends Certificate> certList = certPath.getCertificates();
        internalCertificateChain = certList.toArray(new Certificate[]{});
    } catch (CertificateException e){
        LOG.info("Tried and failed to parse file as a PKI :" + chainFile.getName(), e);
    }

    return internalCertificateChain;
}
 

import java.security.cert.CertificateFactory; //導入方法依賴的package包/類
public static void main(String[] args) throws Exception {
    // Make the CertPath whose encoded form has already been stored
    CertificateFactory certFac = CertificateFactory.getInstance("X509");

    final List<Certificate> certs = new ArrayList<>();
    certs.add(certFac.generateCertificate(new ByteArrayInputStream(cert1.getBytes())));
    certs.add(certFac.generateCertificate(new ByteArrayInputStream(cert2.getBytes())));

    CertPath cp = certFac.generateCertPath(certs);

    // Get the encoded form of the CertPath we made
    byte[] encoded = cp.getEncoded("PKCS7");

    // check if it matches the encoded value
    if (!Arrays.equals(encoded, Base64.getMimeDecoder().decode(pkcs7path.getBytes()))) {
        throw new RuntimeException("PKCS#7 encoding doesn't match stored value");
    }

    // Generate a CertPath from the encoded value and check if it equals
    // the CertPath generated from the certificates
    CertPath decodedCP = certFac.generateCertPath(new ByteArrayInputStream(encoded), "PKCS7");
    if (!decodedCP.equals(cp)) {
        throw new RuntimeException("CertPath decoded from PKCS#7 isn't equal to original");
    }
}
 

import java.security.cert.CertificateFactory; //導入方法依賴的package包/類
public static void createPath(String[] certs) throws Exception {
    TrustAnchor anchor = new TrustAnchor(getCertFromFile(certs[0]), null);
    List list = new ArrayList();
    for (int i = 1; i < certs.length; i++) {
        list.add(0, getCertFromFile(certs[i]));
    }
    CertificateFactory cf = CertificateFactory.getInstance("X509");
    path = cf.generateCertPath(list);

    Set anchors = Collections.singleton(anchor);
    params = new PKIXParameters(anchors);
    params.setRevocationEnabled(false);
    X509CertSelector sel = new X509CertSelector();
    sel.setSerialNumber(new BigInteger("1427"));
    params.setTargetCertConstraints(sel);
}
 

import java.security.cert.CertificateFactory; //導入方法依賴的package包/類
public static void createPath(String[] certs) throws Exception {

        X509Certificate anchorCert = getCertFromFile(certs[0]);
        byte [] nameConstraints = anchorCert.getExtensionValue("2.5.29.30");
        if (nameConstraints != null) {
            DerInputStream in = new DerInputStream(nameConstraints);
            nameConstraints = in.getOctetString();
        }
        TrustAnchor anchor = new TrustAnchor(anchorCert, nameConstraints);
        List list = new ArrayList();
        for (int i = 1; i < certs.length; i++) {
            list.add(0, getCertFromFile(certs[i]));
        }
        CertificateFactory cf = CertificateFactory.getInstance("X509");
        path = cf.generateCertPath(list);

        anchors = Collections.singleton(anchor);
        params = new PKIXParameters(anchors);
        params.setRevocationEnabled(false);
    }
 

import java.security.cert.CertificateFactory; //導入方法依賴的package包/類
private static void runTest(CertificateFactory cf,
        List<X509Certificate> certList, TrustAnchor anchor)
        throws Exception {
    CertPath path = cf.generateCertPath(certList);
    CertPathValidator validator = CertPathValidator.getInstance("PKIX");

    System.out.println(anchor);

    // Attach the OCSP responses to a PKIXParameters object
    PKIXRevocationChecker pkrev =
            (PKIXRevocationChecker)validator.getRevocationChecker();
    Map<X509Certificate, byte[]> responseMap = new HashMap<>();
    responseMap.put(certList.get(0), DECODER.decode(EE_OCSP_RESP));
    responseMap.put(certList.get(1), DECODER.decode(INT_CA_OCSP_RESP));
    pkrev.setOcspResponses(responseMap);
    PKIXParameters params =
            new PKIXParameters(Collections.singleton(anchor));
    params.addCertPathChecker(pkrev);
    params.setDate(EVAL_DATE);

    validator.validate(path, params);
}
 

import java.security.cert.CertificateFactory; //導入方法依賴的package包/類
public Timestamp getTimestamp()
    throws IOException, NoSuchAlgorithmException, SignatureException,
           CertificateException
{
    if (timestamp != null || !hasTimestamp)
        return timestamp;

    if (unauthenticatedAttributes == null) {
        hasTimestamp = false;
        return null;
    }
    PKCS9Attribute tsTokenAttr =
        unauthenticatedAttributes.getAttribute(
            PKCS9Attribute.SIGNATURE_TIMESTAMP_TOKEN_OID);
    if (tsTokenAttr == null) {
        hasTimestamp = false;
        return null;
    }

    PKCS7 tsToken = new PKCS7((byte[])tsTokenAttr.getValue());
    // Extract the content (an encoded timestamp token info)
    byte[] encTsTokenInfo = tsToken.getContentInfo().getData();
    // Extract the signer (the Timestamping Authority)
    // while verifying the content
    SignerInfo[] tsa = tsToken.verify(encTsTokenInfo);
    // Expect only one signer
    ArrayList<X509Certificate> chain = tsa[0].getCertificateChain(tsToken);
    CertificateFactory cf = CertificateFactory.getInstance("X.509");
    CertPath tsaChain = cf.generateCertPath(chain);
    // Create a timestamp token info object
    TimestampToken tsTokenInfo = new TimestampToken(encTsTokenInfo);
    // Check that the signature timestamp applies to this signature
    verifyTimestamp(tsTokenInfo);
    // Create a timestamp object
    timestamp = new Timestamp(tsTokenInfo.getDate(), tsaChain);
    return timestamp;
}
 

import java.security.cert.CertificateFactory; //導入方法依賴的package包/類
public static void createPath(String[] certs) throws Exception {
    TrustAnchor anchor = new TrustAnchor(getCertFromFile(certs[0]), null);
    List list = new ArrayList();
    for (int i = 1; i < certs.length; i++) {
        list.add(0, getCertFromFile(certs[i]));
    }
    CertificateFactory cf = CertificateFactory.getInstance("X509");
    path = cf.generateCertPath(list);

    Set anchors = Collections.singleton(anchor);
    params = new PKIXParameters(anchors);
    params.setRevocationEnabled(false);
}
 

import java.security.cert.CertificateFactory; //導入方法依賴的package包/類
/**
 * Read a bunch of certs from files and create a CertPath from them.
 *
 * @param relPath relative path containing certs (must end in
 *    file.separator)
 * @param fileNames an array of <code>String</code>s that are file names
 * @throws Exception on error
 */
public static CertPath buildPath(String relPath, String [] fileNames)
    throws Exception {
    List<X509Certificate> list = new ArrayList<X509Certificate>();
    for (int i = 0; i < fileNames.length; i++) {
        list.add(0, getCertFromFile(relPath + fileNames[i]));
    }
    CertificateFactory cf = CertificateFactory.getInstance("X509");
    return(cf.generateCertPath(list));
}