我正在处理一个嵌入式jetty服务器和客户端之间的客户端证书认证。他们都使用密钥库。客户端证书由服务器证书签名，该证书由CA签名。Jetty使用两种方法来验证客户端证书，javax.net.ssl.SSLEngine似乎有效，他们还使用上面的代码。
List<X509Certificate> certList = Certificate chain sent by the client
KeyStore truststore = server's truststore
//No use of CRL/OSCP/CRLDP
_crls = null;
_enableOCSP = false;
_enableCRLDP = false;
try{
X509CertSelector certSelect = new X509CertSelector();
certSelect.setCertificate((X509Certificate) certList.get(0));
// Configure certification path builder parameters
PKIXBuilderParameters pbParams = new PKIXBuilderParameters(truststore, certSelect);
pbParams.addCertStore(CertStore.getInstance("Collection", new CollectionCertStoreParameters(certList)));
// Set maximum certification path length
pbParams.setMaxPathLength(-1);
// Enable revocation checking
pbParams.setRevocationEnabled(true);
// Set static Certificate Revocation List
if (_crls != null && !_crls.isEmpty())
pbParams.addCertStore(CertStore.getInstance("Collection", new CollectionCertStoreParameters(_crls)));
// Enable On-Line Certificate Status Protocol (OCSP) support
if (_enableOCSP)
Security.setProperty("ocsp.enable","true");
// Enable Certificate Revocation List Distribution Points (CRLDP) support
if (_enableCRLDP)
System.setProperty("com.sun.security.enableCRLDP","true");
// Build certification path
CertPathBuilderResult buildResult = CertPathBuilder.getInstance("PKIX").build(pbParams);
// Validate certification path
CertPathValidator.getInstance("PKIX").validate(buildResult.getCertPath(),pbParams);
}catch(GeneralSecurityException gse){
...
}
当然，我必须使用第二种方式... 所以我们要集中精力研究这段代码，这是验证签名证书的好方法吗？ 以下是我的密钥库转储：
客户端密钥库：
Entry type: PrivateKeyEntry
Certificate chain length: 2
Certificate[1]:
Owner: EMAILADDRESS=truc@ok.com, CN=Servlet, OU=dev, O=Imbasoft, ST=Ile-de-France, C=FR
Issuer: EMAILADDRESS=contact@greenpacs.com, CN=Greenpacs, OU=dev, O=Imbasoft, L=Bondy, ST=Ile-de-France, C=FR
...
Certificate[2]:
Owner: EMAILADDRESS=contact@greenpacs.com, CN=Greenpacs, OU=dev, O=Imbasoft, L=Bondy, ST=Ile-de-France, C=FR
Issuer: EMAILADDRESS=ghetolay@imbasoft.com, CN=Greenpacs Certificate Authority, OU=dev, O=Imbasoft, ST=Ile-de-France, C=FR
...
服务器信任库：
Entry type: trustedCertEntry
Owner: EMAILADDRESS=contact@greenpacs.com, CN=Greenpacs, OU=dev, O=Imbasoft, L=Bondy, ST=Ile-de-France, C=FR
Issuer: EMAILADDRESS=ghetolay@imbasoft.com, CN=Greenpacs Certificate Authority, OU=dev, O=Imbasoft, ST=Ile-de-France, C=FR
我对这些密钥库不是很确定，但我尝试使用不同的密钥库（将CA证书添加到客户端证书链中，将证书添加到信任库）进行验证时，仍然无法通过验证。而且使用这些密钥库时，验证的第一种方式（SSLEngine）似乎可以工作。
调试输出内容太多，无法在此处放置，但以下是堆栈跟踪:
java.security.cert.CertPathValidatorException: Could not determine revocation status
at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:153)
at sun.security.provider.certpath.PKIXCertPathValidator.doValidate(PKIXCertPathValidator.java:325)
at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(PKIXCertPathValidator.java:187)
at java.security.cert.CertPathValidator.validate(CertPathValidator.java:267)
at MainClass.main(MainClass.java:75)
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:197)
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:255)
at sun.security.provider.certpath.CrlRevocationChecker.buildToNewKey(CrlRevocationChecker.java:583)
at sun.security.provider.certpath.CrlRevocationChecker.verifyWithSeparateSigningKey(CrlRevocationChecker.java:459)
at sun.security.provider.certpath.CrlRevocationChecker.verifyRevocationStatus(CrlRevocationChecker.java:339)
at sun.security.provider.certpath.CrlRevocationChecker.verifyRevocationStatus(CrlRevocationChecker.java:248)
at sun.security.provider.certpath.CrlRevocationChecker.check(CrlRevocationChecker.java:189)
at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:131)
... 4 more
如果我禁用吊销或将最后一个证书（而不是第一个）设置为X509CertSelector，则代码可以工作，但我不确定自己在做什么。
我开始对Jetty的代码产生怀疑，但我不是证书和SSL握手方面的专家，因此这可能也与错误的密钥库/信任库有关。这就是为什么我没有在Jetty的论坛上创建问题并在此之前提问的原因，以确保需要更改代码。
另外，了解如何在Java中验证签名证书可能很有用。