java - 客户端证书上的 OCSP 吊销

Question

仅给定客户端的 java.security.cert.X509Certificate，如何使用 OCSP 在 java 中手动检查证书吊销状态？我看不到一个明确的方法来做到这一点。

或者，我可以让tomcat自动为我做，你怎么知道你的解决方案是真的？

Answer 1

我找到了一个最优秀的解决方案：

http://www.docjar.com/html/api/sun/security/provider/certpath/OCSP.java.html

        /**
   54    * This is a class that checks the revocation status of a certificate(s) using
   55    * OCSP. It is not a PKIXCertPathChecker and therefore can be used outside of
   56    * the CertPathValidator framework. It is useful when you want to
   57    * just check the revocation status of a certificate, and you don't want to
   58    * incur the overhead of validating all of the certificates in the
   59    * associated certificate chain.
   60    *
   61    * @author Sean Mullan
   62    */

它有一个方法 check(X509Certificate clientCert, X509Certificate issuerCert) 可以解决问题！

Answer 2

这是来自 Jetty 7 的相关代码，它采用从 servletRequest 请求中提取的证书数组，并通过 certpath API 和 OCSP 验证它们。

http://grepcode.com/file/repo1.maven.org/maven2/org.eclipse.jetty/jetty-util/7.4.0.v20110414/org/eclipse/jetty/util/security/CertificateValidator.java#189

Answer 3

似乎这里有一个Tomcat 补丁来启用 ocsp 验证。

如果您选择手动操作：

Security.setProperty("ocsp.enable", "true")

或者通过命令行参数设置它。见这里：

该属性的值为真或假。如果为 true，则在进行证书吊销检查时启用 OCSP 检查；如果为 false 或未设置，则禁用 OCSP 检查。

这是一些我认为有效的代码：

interface ValidationStrategy {
    boolean validate(X509Certificate certificate, CertPath certPath,
            PKIXParameters parameters) throws GeneralSecurityException;
}


class SunOCSPValidationStrategy implements ValidationStrategy {
    @Override
    public boolean validate(X509Certificate certificate, CertPath certPath,
            PKIXParameters parameters) throws GeneralSecurityException {
        try {
            CertPathValidator cpv = CertPathValidator.getInstance("PKIX");
            PKIXCertPathValidatorResult result = (PKIXCertPathValidatorResult) cpv
                    .validate(certPath, parameters);
            Signature.LOG.debug("Validation result is: " + result);
            return true; // if no exception is thrown
        } catch (CertPathValidatorException cpve) {

            // if the exception is (or is caused by)
            // CertificateRevokedException, return false;
            // otherwise re-throw, because this indicates a failure to perform
            // the validation
            Throwable cause = ExceptionUtils.getRootCause(cpve);
            Class<? extends Throwable> exceptionClass = cause != null ? cause.getClass()
                    : cpve.getClass();
            if (exceptionClass.getSimpleName().equals("CertificateRevokedException")) {
                return false;
            }
            throw cpve;
        }
    }

}

Answer 4

import org.bouncycastle.util.io.pem.PemReader;
import sun.security.provider.certpath.OCSP;
import sun.security.x509.X509CertImpl;
import java.io.IOException;
import java.io.StringReader;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.security.cert.CertPathValidatorException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Date;

public void test() throws IOException, CertPathValidatorException, java.security.cert.CertificateException {
        X509Certificate userCert = getX509Cert("path_to_user_cert");
        X509Certificate caCert = getX509Cert("path_to_CA_cert");
        OCSP.RevocationStatus ocsp = OCSP.check(userCert, caCert, URI.create("URL to OCSP, but this can be read from USER Cert(AuthorityInfoAccess) As well"), caCert, new Date());
        System.out.println(ocsp);
    }

    private X509CertImpl getX509Cert(final String path) throws CertificateException, IOException {
        return new X509CertImpl(
                new PemReader(
                        new StringReader(
                                new String(
                                        Files.readAllBytes(
                                                Paths.get(path)))))
                        .readPemObject()
                        .getContent());
    }