Java SSL客户端未选择智能卡密钥

我正在尝试在Java程序中使用爱沙尼亚ID卡进行SSL客户端身份验证。在Chrome / Firefox中，这对银行网站和测试服务器（nginx或openssl s_server）均适用。

但是，我的Java客户端（okhttp）对于本地密钥库工作正常，并且在尝试使用ID卡时失败。我将其归结为这个测试用例，它重现了我在调试器中看到的问题以及日志记录（-Djavax.net.debug = ssl：handshake）。

我可以与卡通信，例如可以打印同一密钥的证书。我正在Mac OSX上搭载DigiDoc3客户端。

我可以看到似乎导致密钥被忽略的异常

sun.security.pkcs11.wrapper.PKCS11Exception: CKR_ATTRIBUTE_TYPE_INVALID
    at sun.security.pkcs11.wrapper.PKCS11.C_GetAttributeValue(Native Method)
    at sun.security.pkcs11.P11Key.getAttributes(P11Key.java:275)
    at sun.security.pkcs11.P11Key.privateKey(P11Key.java:330)
    at sun.security.pkcs11.P11KeyStore.loadPkey(P11KeyStore.java:1311)
    at sun.security.pkcs11.P11KeyStore.engineGetEntry(P11KeyStore.java:943)
    at java.security.KeyStore.getEntry(KeyStore.java:1521)
    at sun.security.ssl.X509KeyManagerImpl.getEntry(X509KeyManagerImpl.java:276)
    at sun.security.ssl.X509KeyManagerImpl.getCertificateChain(X509KeyManagerImpl.java:107)
    at com.baulsupp.oksocial.TestMain.main(TestMain.java:37)

测试程序输出

1.0.Authentication
ssl: KeyMgr: choosing key: Authentication (verified: OK)
null
null

测试码

package com.baulsupp.oksocial;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.PrivateKey;
import java.security.Provider;
import java.security.Security;
import java.security.UnrecoverableKeyException;
import java.security.cert.Certificate;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Enumeration;
import java.util.Set;
import javax.net.ssl.KeyManager;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.X509ExtendedKeyManager;

public class TestMain {
  public static void main(String[] args)
      throws UnrecoverableKeyException, CertificateException, NoSuchAlgorithmException,
      KeyStoreException, IOException {
    System.setProperty("javax.net.debug", "all");

    char[] password =
        System.getenv().get("PW").toCharArray();//System.console().readPassword("PW: ");

    X509ExtendedKeyManager km = (X509ExtendedKeyManager) getKeyManagers(password, 0)[0];

    String alias = km.chooseClientAlias(new String[] {"RSA"}, null, null);

    System.out.println(alias);

    X509Certificate[] chain = km.getCertificateChain(alias);
    System.out.println(chain);

    PrivateKey key = km.getPrivateKey(alias);
    System.out.println(key);
  }

  public static KeyManager[] getKeyManagers(char[] password, int slot)
      throws KeyStoreException, IOException, NoSuchAlgorithmException, CertificateException,
      UnrecoverableKeyException {
    //Security.removeProvider("IAIK");

    //Provider provider = new org.bouncycastle.jce.provider.BouncyCastleProvider();
    //Security.addProvider(provider);

    String config =
        "name=OpenSC\nlibrary=/Applications/qdigidocclient.app/Contents/MacOS/esteid-pkcs11.so\nslotListIndex="
            + slot;

    sun.security.pkcs11.SunPKCS11 pkcs11 =
        new sun.security.pkcs11.SunPKCS11(new ByteArrayInputStream(config.getBytes()));

    Security.addProvider(pkcs11);

    //debugProviders();

    KeyStore keystore = KeyStore.getInstance("PKCS11", pkcs11);

    keystore.load(null, password);

    //debugKeys(keystore);

    KeyManagerFactory kmf = KeyManagerFactory.getInstance("NewSunX509");
    kmf.init(keystore, null);

    return kmf.getKeyManagers();
  }

  public static void debugKeys(KeyStore keystore) throws KeyStoreException {
    Enumeration<String> aliases = keystore.aliases();

    while (aliases.hasMoreElements()) {
      String s = aliases.nextElement();

      Certificate k = keystore.getCertificate(s);

      System.out.println(k);
    }
  }

  public static void debugProviders() {
    Provider[] providers = Security.getProviders();
    for (Provider p : providers) {
      System.out.println("\n\n" + p.getName());
      Set<Provider.Service> services = p.getServices();

      for (Provider.Service s : services) {
        System.out.println(s.getType() + " " + s.getAlgorithm());
      }
    }
  }
}

同时，我也提出了支持请求。