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Fix support for elliptic curve certificates in PEM files (elastic/x-pack-elasticsearch#1050) 

This commit fixes the support for elliptic curve certificates that are specified as a PEM file.
These certificates and private keys can now be read properly and a integration test was added to
ensure that TLS also functions correctly with these certificates.

Original commit: elastic/x-pack-elasticsearch@6d6d579c88
This commit is contained in:
Jay Modi 2017-04-24 11:31:10 -04:00 committed by GitHub
parent d2b909fe5a
commit 2c2261881d
6 changed files with 206 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
plugin/src/main/java/org/elasticsearch/xpack/ssl/CertUtils.java
View File

@ -5,6 +5,7 @@
*/
package org.elasticsearch.xpack.ssl;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
import org.bouncycastle.asn1.pkcs.PrivateKeyInfo;
import org.bouncycastle.asn1.x500.X500Name;
@ -14,7 +15,6 @@ import org.bouncycastle.asn1.x509.Extension;
import org.bouncycastle.asn1.x509.ExtensionsGenerator;
import org.bouncycastle.asn1.x509.GeneralName;
import org.bouncycastle.asn1.x509.GeneralNames;
import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
import org.bouncycastle.asn1.x509.Time;
import org.bouncycastle.cert.CertIOException;
import org.bouncycastle.cert.X509CertificateHolder;
@ -66,7 +66,6 @@ import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.SecureRandom;
import java.security.UnrecoverableKeyException;
import java.security.cert.Certificate;
@ -106,7 +105,7 @@ public class CertUtils {
/**
* Returns a {@link X509ExtendedKeyManager} that is built from the provided private key and certificate chain
*/
static X509ExtendedKeyManager keyManager(Certificate[] certificateChain, PrivateKey privateKey, char[] password)
public static X509ExtendedKeyManager keyManager(Certificate[] certificateChain, PrivateKey privateKey, char[] password)
throws NoSuchAlgorithmException, UnrecoverableKeyException, KeyStoreException, IOException, CertificateException {
KeyStore keyStore = KeyStore.getInstance("jks");
keyStore.load(null, null);
@ -234,12 +233,23 @@ public class CertUtils {
/**
* Reads the private key from the reader and optionally uses the password supplier to retrieve a password if the key is encrypted
*/
static PrivateKey readPrivateKey(Reader reader, Supplier<char[]> passwordSupplier) throws IOException {
public static PrivateKey readPrivateKey(Reader reader, Supplier<char[]> passwordSupplier) throws IOException {
try (PEMParser parser = new PEMParser(reader)) {
final Object parsed = parser.readObject();
PrivateKeyInfo privateKeyInfo = innerReadPrivateKey(parser, passwordSupplier);
if (parser.readObject() != null) {
throw new IllegalStateException("key file contained more that one entry");
}
JcaPEMKeyConverter converter = new JcaPEMKeyConverter();
converter.setProvider(BC_PROV);
return converter.getPrivateKey(privateKeyInfo);
}
}
private static PrivateKeyInfo innerReadPrivateKey(PEMParser parser, Supplier<char[]> passwordSupplier) throws IOException {
final Object parsed = parser.readObject();
if (parsed == null) {
throw new IllegalStateException("key file did not contain a supported key");
}
PrivateKeyInfo privateKeyInfo;
if (parsed instanceof PEMEncryptedKeyPair) {
@ -256,16 +266,15 @@ public class CertUtils {
privateKeyInfo = ((PEMKeyPair) parsed).getPrivateKeyInfo();
} else if (parsed instanceof PrivateKeyInfo) {
privateKeyInfo = (PrivateKeyInfo) parsed;
} else if (parsed instanceof ASN1ObjectIdentifier) {
// skip this object and recurse into this method again to read the next object
return innerReadPrivateKey(parser, passwordSupplier);
} else {
throw new IllegalArgumentException("parsed an unsupported object [" +
parsed.getClass().getSimpleName() + "]");
throw new IllegalArgumentException("parsed an unsupported object [" + parsed.getClass().getSimpleName() + "]");
}
JcaPEMKeyConverter converter = new JcaPEMKeyConverter();
return converter.getPrivateKey(privateKeyInfo);
return privateKeyInfo;
}
}
/**
* Generates a CA certificate
*/

108
plugin/src/test/java/org/elasticsearch/xpack/security/transport/ssl/EllipticCurveSSLTests.java Normal file
View File

@ -0,0 +1,108 @@
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License;
* you may not use this file except in compliance with the Elastic License.
*/
package org.elasticsearch.xpack.security.transport.ssl;
import com.unboundid.util.ssl.TrustAllTrustManager;
import org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.TransportAddress;
import org.elasticsearch.test.SecurityIntegTestCase;
import org.elasticsearch.xpack.ssl.CertUtils;
import javax.net.ssl.HandshakeCompletedEvent;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509ExtendedKeyManager;
import java.io.Reader;
import java.nio.file.Files;
import java.nio.file.Path;
import java.security.AccessController;
import java.security.PrivateKey;
import java.security.PrivilegedExceptionAction;
import java.security.SecureRandom;
import java.security.cert.Certificate;
import java.util.Collections;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicReference;
import static org.hamcrest.Matchers.containsString;
public class EllipticCurveSSLTests extends SecurityIntegTestCase {
@Override
protected Settings nodeSettings(int nodeOrdinal) {
final Path keyPath = getDataPath("/org/elasticsearch/xpack/security/transport/ssl/certs/simple/prime256v1-key.pem");
final Path certPath = getDataPath("/org/elasticsearch/xpack/security/transport/ssl/certs/simple/prime256v1-cert.pem");
return Settings.builder()
.put(super.nodeSettings(nodeOrdinal).filter(s -> s.startsWith("xpack.ssl") == false))
.put("xpack.ssl.key", keyPath)
.put("xpack.ssl.certificate", certPath)
.put("xpack.ssl.certificate_authorities", certPath)
.put("xpack.ssl.verification_mode", "certificate") // disable hostname verificate since these certs aren't setup for that
.build();
}
@Override
protected Settings transportClientSettings() {
final Path keyPath = getDataPath("/org/elasticsearch/xpack/security/transport/ssl/certs/simple/prime256v1-key.pem");
final Path certPath = getDataPath("/org/elasticsearch/xpack/security/transport/ssl/certs/simple/prime256v1-cert.pem");
return Settings.builder()
.put(super.transportClientSettings().filter(s -> s.startsWith("xpack.ssl") == false))
.put("xpack.ssl.key", keyPath)
.put("xpack.ssl.certificate", certPath)
.put("xpack.ssl.certificate_authorities", certPath)
.put("xpack.ssl.verification_mode", "certificate") // disable hostname verification since these certs aren't setup for that
.build();
}
@Override
protected boolean useGeneratedSSLConfig() {
return false;
}
public void testConnection() throws Exception {
final Path keyPath = getDataPath("/org/elasticsearch/xpack/security/transport/ssl/certs/simple/prime256v1-key.pem");
final Path certPath = getDataPath("/org/elasticsearch/xpack/security/transport/ssl/certs/simple/prime256v1-cert.pem");
PrivateKey privateKey;
try (Reader reader = Files.newBufferedReader(keyPath)) {
privateKey = CertUtils.readPrivateKey(reader, () -> null);
}
Certificate[] certs = CertUtils.readCertificates(Collections.singletonList(certPath.toString()), null);
X509ExtendedKeyManager x509ExtendedKeyManager = CertUtils.keyManager(certs, privateKey, new char[0]);
SSLContext sslContext = SSLContext.getInstance("TLS");
sslContext.init(new X509ExtendedKeyManager[] { x509ExtendedKeyManager },
new TrustManager[] { new TrustAllTrustManager(false) }, new SecureRandom());
SSLSocketFactory socketFactory = sslContext.getSocketFactory();
NodesInfoResponse response = client().admin().cluster().prepareNodesInfo().setTransport(true).get();
TransportAddress address = randomFrom(response.getNodes()).getTransport().getAddress().publishAddress();
final CountDownLatch latch = new CountDownLatch(1);
try (SSLSocket sslSocket = AccessController.doPrivileged(new PrivilegedExceptionAction<SSLSocket>() {
@Override
public SSLSocket run() throws Exception {
return (SSLSocket) socketFactory.createSocket(address.address().getAddress(), address.address().getPort());
}})) {
final AtomicReference<HandshakeCompletedEvent> reference = new AtomicReference<>();
sslSocket.addHandshakeCompletedListener((event) -> {
reference.set(event);
latch.countDown();
});
sslSocket.startHandshake();
latch.await();
HandshakeCompletedEvent event = reference.get();
assertNotNull(event);
SSLSession session = event.getSession();
Certificate[] peerChain = session.getPeerCertificates();
assertEquals(1, peerChain.length);
assertEquals(certs[0], peerChain[0]);
assertThat(session.getCipherSuite(), containsString("ECDSA"));
}
}
}

35
plugin/src/test/java/org/elasticsearch/xpack/ssl/CertUtilsTests.java
View File

@ -7,6 +7,8 @@ package org.elasticsearch.xpack.ssl;
import org.bouncycastle.asn1.x509.GeneralName;
import org.bouncycastle.asn1.x509.GeneralNames;
import org.bouncycastle.jce.spec.ECNamedCurveParameterSpec;
import org.bouncycastle.jce.spec.ECNamedCurveSpec;
import org.elasticsearch.common.SuppressForbidden;
import org.elasticsearch.common.network.InetAddresses;
import org.elasticsearch.common.network.NetworkAddress;
@ -26,10 +28,13 @@ import java.security.PrivateKey;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.security.interfaces.ECPrivateKey;
import java.security.interfaces.ECPublicKey;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.instanceOf;
import static org.hamcrest.Matchers.is;
@ -151,4 +156,34 @@ public class CertUtilsTests extends ESTestCase {
verify(address).isAnyLocalAddress();
verifyNoMoreInteractions(address);
}
public void testReadEllipticCurveCertificateAndKey() throws Exception {
Path keyPath = getDataPath("/org/elasticsearch/xpack/security/transport/ssl/certs/simple/prime256v1-key.pem");
try (Reader reader = Files.newBufferedReader(keyPath)) {
verifyPrime256v1ECKey(reader);
}
Path keyNoSpecPath = getDataPath("/org/elasticsearch/xpack/security/transport/ssl/certs/simple/prime256v1-key-noparam.pem");
try (Reader reader = Files.newBufferedReader(keyNoSpecPath)) {
verifyPrime256v1ECKey(reader);
}
Path certPath = getDataPath("/org/elasticsearch/xpack/security/transport/ssl/certs/simple/prime256v1-cert.pem");
Certificate[] certs = CertUtils.readCertificates(Collections.singletonList(certPath.toString()), null);
assertEquals(1, certs.length);
Certificate cert = certs[0];
assertNotNull(cert);
assertEquals("EC", cert.getPublicKey().getAlgorithm());
}
private void verifyPrime256v1ECKey(Reader reader) throws Exception {
PrivateKey privateKey = CertUtils.readPrivateKey(reader, () -> null);
assertNotNull(privateKey);
assertEquals("ECDSA", privateKey.getAlgorithm());
assertThat(privateKey, instanceOf(ECPrivateKey.class));
ECPrivateKey ecPrivateKey = (ECPrivateKey) privateKey;
assertThat(ecPrivateKey.getParams(), instanceOf(ECNamedCurveSpec.class));
ECNamedCurveSpec namedCurveSpec = (ECNamedCurveSpec) ecPrivateKey.getParams();
assertEquals("prime256v1", namedCurveSpec.getName());
}
}

15
plugin/src/test/resources/org/elasticsearch/xpack/security/transport/ssl/certs/simple/prime256v1-cert.pem Normal file
View File

@ -0,0 +1,15 @@
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

5
plugin/src/test/resources/org/elasticsearch/xpack/security/transport/ssl/certs/simple/prime256v1-key-noparam.pem Normal file
View File

@ -0,0 +1,5 @@
-----BEGIN EC PRIVATE KEY-----
MHcCAQEEIN74E4fO1Pq89hh7NYjUBFu7akoHC36ZvlnHfcCASq5ToAoGCCqGSM49
AwEHoUQDQgAEwxFMxXUeq1k8ft3C1Yir+QvDxxhXy8rts3syLT2r0lCiBu/BGRWK
vxvX/cOBQS8u/7y7zOBwhzHaJpa1ovOt+Q==
-----END EC PRIVATE KEY-----

8
plugin/src/test/resources/org/elasticsearch/xpack/security/transport/ssl/certs/simple/prime256v1-key.pem Normal file
View File

@ -0,0 +1,8 @@
-----BEGIN EC PARAMETERS-----
BggqhkjOPQMBBw==
-----END EC PARAMETERS-----
-----BEGIN EC PRIVATE KEY-----
MHcCAQEEIN74E4fO1Pq89hh7NYjUBFu7akoHC36ZvlnHfcCASq5ToAoGCCqGSM49
AwEHoUQDQgAEwxFMxXUeq1k8ft3C1Yir+QvDxxhXy8rts3syLT2r0lCiBu/BGRWK
vxvX/cOBQS8u/7y7zOBwhzHaJpa1ovOt+Q==
-----END EC PRIVATE KEY-----