adding mutual SLL authentication and certificate management DAOs

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/pom.xml

@@ -69,8 +69,10 @@
                             org.bouncycastle.operator,
                             org.bouncycastle.operator.jcajce,
                             org.bouncycastle.pkcs,
+                            org.bouncycastle.openssl,
                             org.bouncycastle.util,
                             org.jscep.message,
+                            org.wso2.carbon.context,
                             org.jscep.transaction,
                             org.w3c.dom,
                             org.xml.sax,

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/bean/Certificate.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2016, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 Inc. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.wso2.carbon.certificate.mgt.core.bean;
+
+import java.security.cert.X509Certificate;
+
+public class Certificate {
+    String serial;
+    X509Certificate certificate;
+    int tenantId;
+    String tenantDomain;
+
+    public int getTenantId() {
+        return tenantId;
+    }
+
+    public void setTenantId(int tenantId) {
+        this.tenantId = tenantId;
+    }
+
+    public String getSerial() {
+        return serial;
+    }
+
+    public void setSerial(String serial) {
+        this.serial = serial;
+    }
+
+    public X509Certificate getCertificate() {
+        return certificate;
+    }
+
+    public void setCertificate(X509Certificate certificate) {
+        this.certificate = certificate;
+    }
+
+    public String getTenantDomain() {
+        return tenantDomain;
+    }
+
+    public void setTenantDomain(String tenantDomain) {
+        this.tenantDomain = tenantDomain;
+    }
+}

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/dao/CertificateDAO.java

@@ -18,7 +18,11 @@
 
 package org.wso2.carbon.certificate.mgt.core.dao;
 
+import org.wso2.carbon.device.mgt.common.PaginationRequest;
+import org.wso2.carbon.device.mgt.common.PaginationResult;
+
 import java.io.ByteArrayInputStream;
+import java.util.List;
 
 /**
  * This class represents the key operations associated with persisting certificate related
@@ -30,21 +34,34 @@ public interface CertificateDAO {
      * This can be used to store a certificate in the database, where it will be stored against the serial number
      * of the certificate.
      *
-     * @param byteArrayInputStream Holds the certificate.
+     * @param certificate Holds the certificate and relevant details.
-     * @param serialNumber         Serial number of the certificate.
      * @throws CertificateManagementDAOException
      */
-    void addCertificate(ByteArrayInputStream byteArrayInputStream, String serialNumber
+    void addCertificate(List<org.wso2.carbon.certificate.mgt.core.bean.Certificate> certificate)
-    ) throws CertificateManagementDAOException;
+            throws CertificateManagementDAOException;
 
     /**
-     * Usage is to obtain a certificate stored in the database by providing the serial number.
+     * Usage is to obtain a certificate stored in the database by providing the common name.
      *
      * @param serialNumber Serial number of the certificate.
      * @return representation of the certificate.
      * @throws CertificateManagementDAOException
      */
-    byte[] retrieveCertificate(String serialNumber
+    org.wso2.carbon.certificate.mgt.core.dto.CertificateResponse retrieveCertificate(String serialNumber
     ) throws CertificateManagementDAOException;
 
+    /**
+     * Get all the certificates in a paginated manner.
+     * @param request Request mentioning pagination details such as length and stating index.
+     * @return Pagination result with data and the count of results.
+     * @throws CertificateManagementDAOException
+     */
+    PaginationResult getAllCertificates(PaginationRequest request) throws CertificateManagementDAOException;
+
+    /**
+     * Delete a certificate identified by a serial number()
+     * @param serialNumber serial number
+     * @return whether the certificate was removed or not.
+     */
+    boolean removeCertificate(String serialNumber) throws CertificateManagementDAOException;
 }

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/dao/impl/GenericCertificateDAOImpl.java

@@ -18,58 +18,172 @@
 
 package org.wso2.carbon.certificate.mgt.core.dao.impl;
 
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.wso2.carbon.certificate.mgt.core.bean.Certificate;
 import org.wso2.carbon.certificate.mgt.core.dao.CertificateDAO;
 import org.wso2.carbon.certificate.mgt.core.dao.CertificateManagementDAOException;
 import org.wso2.carbon.certificate.mgt.core.dao.CertificateManagementDAOFactory;
 import org.wso2.carbon.certificate.mgt.core.dao.CertificateManagementDAOUtil;
+import org.wso2.carbon.certificate.mgt.core.dto.CertificateResponse;
+import org.wso2.carbon.certificate.mgt.core.exception.KeystoreException;
+import org.wso2.carbon.certificate.mgt.core.impl.CertificateGenerator;
+import org.wso2.carbon.certificate.mgt.core.util.CertificateManagerUtil;
+import org.wso2.carbon.certificate.mgt.core.util.Serializer;
+import org.wso2.carbon.context.PrivilegedCarbonContext;
+import org.wso2.carbon.device.mgt.common.PaginationRequest;
+import org.wso2.carbon.device.mgt.common.PaginationResult;
+import org.wso2.carbon.device.mgt.common.operation.mgt.OperationManagementException;
+import org.wso2.carbon.device.mgt.core.operation.mgt.dao.OperationManagementDAOUtil;
 
 import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.security.cert.CertificateEncodingException;
+import java.security.cert.X509Certificate;
 import java.sql.*;
+import java.util.ArrayList;
+import java.util.List;
 
 public class GenericCertificateDAOImpl implements CertificateDAO {
+    private static final Log log = LogFactory.getLog(GenericCertificateDAOImpl.class);
+
     @Override
-    public void addCertificate(ByteArrayInputStream byteArrayInputStream, String serialNumber)
+    public void addCertificate(List<Certificate> certificates)
             throws CertificateManagementDAOException {
         Connection conn;
         PreparedStatement stmt = null;
         try {
             conn = this.getConnection();
-            stmt = conn.prepareStatement("INSERT INTO DM_DEVICE_CERTIFICATE (SERIAL_NUMBER, CERTIFICATE) VALUES (?,?)");
+            stmt = conn.prepareStatement(
+                    "INSERT INTO DM_DEVICE_CERTIFICATE (SERIAL_NUMBER, CERTIFICATE, TENANT_ID) VALUES (?,?,?)");
+            for (Certificate certificate : certificates) {
+                String serialNumber = certificate.getSerial();
+                if (serialNumber == null || serialNumber.isEmpty()) {
+                    serialNumber = String.valueOf(certificate.getCertificate().getSerialNumber());
+                }
+                byte[] bytes = Serializer.serialize(certificate.getCertificate());
+                ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(bytes);
+
                 stmt.setString(1, serialNumber);
                 stmt.setObject(2, byteArrayInputStream);
-            stmt.execute();
+                stmt.setInt(3, certificate.getTenantId());
-        } catch (SQLException e) {
+                stmt.addBatch();
-            throw new CertificateManagementDAOException("Error occurred while saving certificate with serial " +
+            }
-                                                        serialNumber, e);
+            stmt.executeBatch();
+        } catch (SQLException | IOException e) {
+            throw new CertificateManagementDAOException("Error occurred while saving certificates. "
+                    , e);
         } finally {
             CertificateManagementDAOUtil.cleanupResources(stmt, null);
         }
     }
 
     @Override
-    public byte[] retrieveCertificate(String serialNumber)
+    public CertificateResponse retrieveCertificate(String serialNumber)
             throws CertificateManagementDAOException {
         Connection conn;
         PreparedStatement stmt = null;
         ResultSet resultSet = null;
-        byte[] binaryStream = null;
+        CertificateResponse certificateResponse = null;
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
         try {
             conn = this.getConnection();
-            String query = "SELECT CERTIFICATE FROM DM_DEVICE_CERTIFICATE WHERE SERIAL_NUMBER = ?";
+            String query =
+                    "SELECT CERTIFICATE, SERIAL_NUMBER, TENANT_ID FROM DM_DEVICE_CERTIFICATE WHERE SERIAL_NUMBER = ?" +
+                    " AND TENANT_ID = ? ";
             stmt = conn.prepareStatement(query);
             stmt.setString(1, serialNumber);
+            stmt.setInt(2, tenantId);
+            resultSet = stmt.executeQuery();
+
+            while (resultSet.next()) {
+                certificateResponse = new CertificateResponse();
+                byte [] certificateBytes = resultSet.getBytes("CERTIFICATE");
+                certificateResponse.setCertificate(certificateBytes);
+                certificateResponse.setSerialNumber(resultSet.getString("SERIAL_NUMBER"));
+                certificateResponse.setTenantId(resultSet.getInt("TENANT_ID"));
+                CertificateGenerator.extractCertificateDetails(certificateBytes, certificateResponse);
+                break;
+            }
+        } catch (SQLException e) {
+            String errorMsg =
+                    "Unable to get the read the certificate with serial" + serialNumber;
+            log.error(errorMsg, e);
+            throw new CertificateManagementDAOException(errorMsg, e);
+        } finally {
+            CertificateManagementDAOUtil.cleanupResources(stmt, resultSet);
+        }
+        return certificateResponse;
+    }
+
+    @Override
+    public PaginationResult getAllCertificates(PaginationRequest request) throws CertificateManagementDAOException {
+        PreparedStatement stmt = null;
+        ResultSet resultSet = null;
+        CertificateResponse certificateResponse;
+        List<CertificateResponse> certificates = new ArrayList<>();
+        PaginationResult paginationResult;
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+        try {
+            Connection conn = this.getConnection();
+            String sql = "SELECT CERTIFICATE, SERIAL_NUMBER, TENANT_ID FROM DM_DEVICE_CERTIFICATE WHERE TENANT_ID = ? " +
+                         "ORDER BY ID DESC LIMIT ?,?";
+            stmt = conn.prepareStatement(sql);
+            stmt.setInt(1, tenantId);
+            stmt.setInt(2, request.getStartIndex());
+            stmt.setInt(3, request.getRowCount());
             resultSet = stmt.executeQuery();
 
+            int resultCount = 0;
             while (resultSet.next()) {
-                binaryStream = resultSet.getBytes("CERTIFICATE");
+                certificateResponse = new CertificateResponse();
+                byte [] certificateBytes = resultSet.getBytes("CERTIFICATE");
+                certificateResponse.setSerialNumber(resultSet.getString("SERIAL_NUMBER"));
+                certificateResponse.setTenantId(resultSet.getInt("TENANT_ID"));
+                CertificateGenerator.extractCertificateDetails(certificateBytes, certificateResponse);
+                certificates.add(certificateResponse);
+                resultCount++;
+            }
+            paginationResult = new PaginationResult();
+            paginationResult.setData(certificates);
+            paginationResult.setRecordsTotal(resultCount);
+        } catch (SQLException e) {
+            String errorMsg =  "SQL error occurred while retrieving the certificates.";
+            log.error(errorMsg, e);
+            throw new CertificateManagementDAOException(errorMsg, e);
+        } finally {
+            OperationManagementDAOUtil.cleanupResources(stmt, resultSet);
+        }
+        return paginationResult;
+    }
+
+    @Override
+    public boolean removeCertificate(String serialNumber) throws CertificateManagementDAOException {
+        Connection conn;
+        PreparedStatement stmt = null;
+        ResultSet resultSet = null;
+        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+        try {
+            conn = this.getConnection();
+            String query =
+                    "DELETE FROM DM_DEVICE_CERTIFICATE WHERE SERIAL_NUMBER = ?" +
+                    " AND TENANT_ID = ? ";
+            stmt = conn.prepareStatement(query);
+            stmt.setString(1, serialNumber);
+            stmt.setInt(2, tenantId);
+
+            if(stmt.executeUpdate() > 0) {
+                return true;
             }
+            return false;
         } catch (SQLException e) {
-            throw new CertificateManagementDAOException(
+            String errorMsg =
-                    "Unable to get the read the certificate with serial" + serialNumber, e);
+                    "Unable to get the read the certificate with serial" + serialNumber;
+            log.error(errorMsg, e);
+            throw new CertificateManagementDAOException(errorMsg, e);
         } finally {
             CertificateManagementDAOUtil.cleanupResources(stmt, resultSet);
         }
-        return binaryStream;
     }
 
     private Connection getConnection() throws SQLException {

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/dto/CertificateResponse.java

@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2016, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 Inc. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.wso2.carbon.certificate.mgt.core.dto;
+
+import java.math.BigInteger;
+
+public class CertificateResponse {
+
+    byte[] certificate;
+    String serialNumber;
+    int tenantId;
+    String commonName;
+    long notAfter;
+    long notBefore;
+    BigInteger certificateserial;
+    String issuer;
+    String subject;
+    int certificateVersion;
+
+    public long getNotAfter() {
+        return notAfter;
+    }
+
+    public void setNotAfter(long notAfter) {
+        this.notAfter = notAfter;
+    }
+
+    public long getNotBefore() {
+        return notBefore;
+    }
+
+    public void setNotBefore(long notBefore) {
+        this.notBefore = notBefore;
+    }
+
+    public BigInteger getCertificateserial() {
+        return certificateserial;
+    }
+
+    public void setCertificateserial(BigInteger certificateserial) {
+        this.certificateserial = certificateserial;
+    }
+
+    public String getIssuer() {
+        return issuer;
+    }
+
+    public void setIssuer(String issuer) {
+        this.issuer = issuer;
+    }
+
+    public String getSubject() {
+        return subject;
+    }
+
+    public void setSubject(String subject) {
+        this.subject = subject;
+    }
+
+    public int getCertificateVersion() {
+        return certificateVersion;
+    }
+
+    public void setCertificateVersion(int certificateVersion) {
+        this.certificateVersion = certificateVersion;
+    }
+
+    public String getCommonName() {
+        return commonName;
+    }
+
+    public void setCommonName(String commonName) {
+        this.commonName = commonName;
+    }
+
+    public byte[] getCertificate() {
+        return certificate;
+    }
+
+    public void setCertificate(byte[] certificate) {
+        this.certificate = certificate;
+    }
+
+    public String getSerialNumber() {
+        return serialNumber;
+    }
+
+    public void setSerialNumber(String serialNumber) {
+        this.serialNumber = serialNumber;
+    }
+
+    public int getTenantId() {
+        return tenantId;
+    }
+
+    public void setTenantId(int tenantId) {
+        this.tenantId = tenantId;
+    }
+}

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/impl/CertificateGenerator.java

@@ -39,6 +39,7 @@ import org.bouncycastle.cms.CMSException;
 import org.bouncycastle.cms.CMSSignedData;
 import org.bouncycastle.cms.CMSSignedDataGenerator;
 import org.bouncycastle.jce.provider.BouncyCastleProvider;
+import org.bouncycastle.openssl.PEMWriter;
 import org.bouncycastle.operator.ContentSigner;
 import org.bouncycastle.operator.OperatorCreationException;
 import org.bouncycastle.operator.jcajce.JcaContentSignerBuilder;
@@ -52,16 +53,19 @@ import org.wso2.carbon.certificate.mgt.core.dao.CertificateDAO;
 import org.wso2.carbon.certificate.mgt.core.dao.CertificateManagementDAOException;
 import org.wso2.carbon.certificate.mgt.core.dao.CertificateManagementDAOFactory;
 import org.wso2.carbon.certificate.mgt.core.dto.CAStatus;
+import org.wso2.carbon.certificate.mgt.core.dto.CertificateResponse;
 import org.wso2.carbon.certificate.mgt.core.dto.SCEPResponse;
 import org.wso2.carbon.certificate.mgt.core.exception.KeystoreException;
 import org.wso2.carbon.certificate.mgt.core.util.CommonUtil;
 import org.wso2.carbon.certificate.mgt.core.util.ConfigurationUtil;
 import org.wso2.carbon.certificate.mgt.core.util.Serializer;
+import org.wso2.carbon.context.PrivilegedCarbonContext;
 import org.wso2.carbon.device.mgt.common.TransactionManagementException;
 
 import javax.security.auth.x500.X500Principal;
 import javax.xml.bind.DatatypeConverter;
 import java.io.*;
+import java.math.BigInteger;
 import java.security.*;
 import java.security.cert.Certificate;
 import java.security.cert.*;
@@ -154,7 +158,13 @@ public class CertificateGenerator {
 
             certificate.verify(certificate.getPublicKey());
 
-            saveCertInKeyStore(certificate);
+            List<org.wso2.carbon.certificate.mgt.core.bean.Certificate> certificates = new ArrayList<>();
+            org.wso2.carbon.certificate.mgt.core.bean.Certificate certificateToStore =
+                    new org.wso2.carbon.certificate.mgt.core.bean.Certificate();
+            certificateToStore.setTenantId(PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId());
+            certificateToStore.setCertificate(certificate);
+            certificates.add(certificateToStore);
+            saveCertInKeyStore(certificates);
 
             return certificate;
         } catch (NoSuchAlgorithmException e) {
@@ -269,6 +279,57 @@ public class CertificateGenerator {
         return  (certificate != null);
     }
 
+    public CertificateResponse verifyPEMSignature(X509Certificate requestCertificate) throws KeystoreException {
+        KeyStoreReader keyStoreReader = new KeyStoreReader();
+        CertificateResponse lookUpCertificate;
+
+        String commonNameExtracted = getCommonName(requestCertificate);
+        lookUpCertificate = keyStoreReader.getCertificateBySerial(commonNameExtracted);
+        return lookUpCertificate;
+    }
+
+    public static String getCommonName(X509Certificate requestCertificate) {
+        String distinguishedName = requestCertificate.getSubjectDN().getName();
+        if(distinguishedName != null && !distinguishedName.isEmpty()) {
+            String[] dnSplits = distinguishedName.split(",");
+            for (String dnSplit : dnSplits) {
+                if (dnSplit.contains("CN=")) {
+                    String[] cnSplits = dnSplit.split("=");
+                    if (cnSplits[1] != null) {
+                        return cnSplits[1];
+                    }
+                }
+            }
+        }
+        return null;
+    }
+
+    public X509Certificate pemToX509Certificate(String pem)
+            throws KeystoreException {
+        InputStream inputStream = null;
+        X509Certificate x509Certificate = null;
+        try {
+
+            inputStream = new ByteArrayInputStream(Base64.decodeBase64(pem.getBytes()));
+            CertificateFactory cf = CertificateFactory.getInstance("X.509");
+            x509Certificate = (X509Certificate) cf.generateCertificate(inputStream);
+
+        } catch (CertificateException e) {
+            String errorMsg = "Certificate issue occurred when generating converting PEM to x509Certificate";
+            log.error(errorMsg, e);
+            throw new KeystoreException(errorMsg, e);
+        } finally {
+            try {
+                if (inputStream != null) {
+                    inputStream.close();
+                }
+            } catch (IOException e) {
+                log.error("Error closing Certificate input stream", e);
+            }
+        }
+        return x509Certificate;
+    }
+
     public X509Certificate extractCertificateFromSignature(String headerSignature) throws KeystoreException {
 
         if (headerSignature == null || headerSignature.isEmpty()) {
@@ -364,8 +425,13 @@ public class CertificateGenerator {
             issuedCert = new JcaX509CertificateConverter().setProvider(
                     ConfigurationUtil.PROVIDER).getCertificate(
                     certificateBuilder.build(sigGen));
-
+            org.wso2.carbon.certificate.mgt.core.bean.Certificate certificate =
-            saveCertInKeyStore(issuedCert);
+                    new org.wso2.carbon.certificate.mgt.core.bean.Certificate();
+            List<org.wso2.carbon.certificate.mgt.core.bean.Certificate> certificates = new ArrayList<>();
+            certificate.setTenantId(PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId());
+            certificate.setCertificate(issuedCert);
+            certificates.add(certificate);
+            saveCertInKeyStore(certificates);
         } catch (CertIOException e) {
             String errorMsg = "Certificate Input output issue occurred when generating generateCertificateFromCSR";
             log.error(errorMsg, e);
@@ -522,7 +588,7 @@ public class CertificateGenerator {
         }
     }
 
-    private void saveCertInKeyStore(X509Certificate certificate)
+    public void saveCertInKeyStore(List<org.wso2.carbon.certificate.mgt.core.bean.Certificate> certificate)
             throws KeystoreException {
 
         if (certificate == null) {
@@ -530,18 +596,10 @@ public class CertificateGenerator {
         }
 
         try {
-            String serialNumber = certificate.getSerialNumber().toString();
-            byte[] bytes = Serializer.serialize(certificate);
-            ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(bytes);
             CertificateDAO certificateDAO = CertificateManagementDAOFactory.getCertificateDAO();
             CertificateManagementDAOFactory.beginTransaction();
-            certificateDAO.addCertificate(byteArrayInputStream, serialNumber);
+            certificateDAO.addCertificate(certificate);
             CertificateManagementDAOFactory.commitTransaction();
-        } catch (IOException e) {
-            String errorMsg = "IOException occurred when saving the generated certificate";
-            log.error(errorMsg, e);
-            CertificateManagementDAOFactory.rollbackTransaction();
-            throw new KeystoreException(errorMsg, e);
         } catch (CertificateManagementDAOException e) {
             String errorMsg = "Error occurred when saving the generated certificate";
             log.error(errorMsg, e);
@@ -557,6 +615,8 @@ public class CertificateGenerator {
         }
     }
 
+
+
     public String extractChallengeToken(X509Certificate certificate) {
 
         byte[] challengePassword = certificate.getExtensionValue(
@@ -617,4 +677,28 @@ public class CertificateGenerator {
                 certCA.getIssuerX500Principal().getName());
         return signedCertificate;
     }
+
+    public static void extractCertificateDetails(byte[] certificateBytes, CertificateResponse certificateResponse)
+            throws CertificateManagementDAOException {
+        try {
+            if (certificateBytes != null) {
+                java.security.cert.Certificate x509Certificate =
+                        (java.security.cert.Certificate) Serializer.deserialize(certificateBytes);
+                if (x509Certificate instanceof X509Certificate) {
+                    X509Certificate certificate = (X509Certificate) x509Certificate;
+                    certificateResponse.setNotAfter(certificate.getNotAfter().getTime());
+                    certificateResponse.setNotBefore(certificate.getNotBefore().getTime());
+                    certificateResponse.setCertificateserial(certificate.getSerialNumber());
+                    certificateResponse.setIssuer(certificate.getIssuerDN().getName());
+                    certificateResponse.setSubject(certificate.getSubjectDN().getName());
+                    certificateResponse.setCertificateVersion(certificate.getVersion());
+                }
+            }
+        } catch (ClassNotFoundException | IOException e) {
+            String errorMsg = "Error while deserializing the certificate.";
+            log.error(errorMsg, e);
+            throw new CertificateManagementDAOException(errorMsg, e);
+        }
+
+    }
 }

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/impl/KeyStoreReader.java

@@ -21,6 +21,7 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.wso2.carbon.certificate.mgt.core.dao.CertificateManagementDAOException;
 import org.wso2.carbon.certificate.mgt.core.dao.CertificateManagementDAOFactory;
+import org.wso2.carbon.certificate.mgt.core.dto.CertificateResponse;
 import org.wso2.carbon.certificate.mgt.core.util.ConfigurationUtil;
 import org.wso2.carbon.certificate.mgt.core.exception.KeystoreException;
 import org.wso2.carbon.certificate.mgt.core.util.Serializer;
@@ -30,13 +31,10 @@ import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.security.KeyStore;
+import java.security.*;
-import java.security.KeyStoreException;
-import java.security.NoSuchAlgorithmException;
-import java.security.PrivateKey;
-import java.security.UnrecoverableKeyException;
 import java.security.cert.Certificate;
 import java.security.cert.CertificateException;
+import java.security.cert.X509Certificate;
 import java.sql.SQLException;
 
 public class KeyStoreReader {
@@ -213,8 +211,11 @@ public class KeyStoreReader {
         Certificate raCertificate = null;
         try {
             CertificateManagementDAOFactory.openConnection();
-            byte[] certificateBytes = CertificateManagementDAOFactory.getCertificateDAO().retrieveCertificate(alias);
+            CertificateResponse certificateResponse = CertificateManagementDAOFactory.getCertificateDAO().
-            raCertificate = (Certificate) Serializer.deserialize(certificateBytes);
+                    retrieveCertificate(alias);
+            if(certificateResponse != null) {
+                raCertificate = (Certificate) Serializer.deserialize(certificateResponse.getCertificate());
+            }
         } catch (CertificateManagementDAOException e) {
             String errorMsg = "Error when retrieving certificate the the database for the alias " + alias;
             log.error(errorMsg, e);
@@ -261,4 +262,39 @@ public class KeyStoreReader {
 
         return raPrivateKey;
     }
+
+    public CertificateResponse getCertificateBySerial(String serialNumber) throws KeystoreException {
+
+        CertificateResponse certificateResponse = null;
+        try {
+            CertificateManagementDAOFactory.openConnection();
+            certificateResponse = CertificateManagementDAOFactory.getCertificateDAO().
+                    retrieveCertificate(serialNumber);
+            if(certificateResponse != null && certificateResponse.getCertificate() != null) {
+                Certificate certificate = (Certificate) Serializer.deserialize(certificateResponse.getCertificate());
+                if (certificate instanceof X509Certificate) {
+                    X509Certificate x509cert = (X509Certificate) certificate;
+                    String commonName = CertificateGenerator.getCommonName(x509cert);
+                    certificateResponse.setCommonName(commonName);
+                }
+            }
+
+        } catch (CertificateManagementDAOException e) {
+            String errorMsg = "Error when retrieving certificate from the the database for the serial number: " +
+                              serialNumber;
+            log.error(errorMsg, e);
+            throw new KeystoreException(errorMsg, e);
+        } catch (SQLException e) {
+            String errorMsg = "Error when making a connection to the database.";
+            log.error(errorMsg, e);
+            throw new KeystoreException(errorMsg, e);
+        } catch (ClassNotFoundException | IOException e) {
+            String errorMsg = "Error when deserializing saved certificate.";
+            log.error(errorMsg, e);
+            throw new KeystoreException(errorMsg, e);
+        } finally {
+            CertificateManagementDAOFactory.closeConnection();
+        }
+        return certificateResponse;
+    }
 }

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/service/CertificateManagementService.java

@@ -18,8 +18,12 @@
 package org.wso2.carbon.certificate.mgt.core.service;
 
 import org.bouncycastle.pkcs.PKCS10CertificationRequest;
+import org.wso2.carbon.certificate.mgt.core.dao.CertificateManagementDAOException;
+import org.wso2.carbon.certificate.mgt.core.dto.CertificateResponse;
 import org.wso2.carbon.certificate.mgt.core.dto.SCEPResponse;
 import org.wso2.carbon.certificate.mgt.core.exception.KeystoreException;
+import org.wso2.carbon.device.mgt.common.PaginationRequest;
+import org.wso2.carbon.device.mgt.common.PaginationResult;
 
 import java.io.InputStream;
 import java.security.PrivateKey;
@@ -50,9 +54,24 @@ public interface CertificateManagementService {
 
     boolean verifySignature(String headerSignature) throws KeystoreException;
 
+    public CertificateResponse verifyPEMSignature(X509Certificate requestCertificate) throws KeystoreException;
+
     public X509Certificate extractCertificateFromSignature(String headerSignature) throws KeystoreException;
 
     String extractChallengeToken(X509Certificate certificate);
 
     X509Certificate getSignedCertificateFromCSR(String binarySecurityToken) throws KeystoreException;
+
+    public CertificateResponse getCertificateBySerial(String serial) throws KeystoreException;
+
+    public void saveCertificate(List<org.wso2.carbon.certificate.mgt.core.bean.Certificate> certificate)
+            throws KeystoreException;
+
+    public X509Certificate pemToX509Certificate(String pem) throws KeystoreException;
+
+    public CertificateResponse retrieveCertificate(String serialNumber) throws CertificateManagementDAOException;
+
+    public PaginationResult getAllCertificates(PaginationRequest request) throws CertificateManagementDAOException;
+
+    boolean removeCertificate(String serialNumber) throws CertificateManagementDAOException;
 }

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/service/CertificateManagementServiceImpl.java

@@ -20,16 +20,24 @@ package org.wso2.carbon.certificate.mgt.core.service;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.bouncycastle.pkcs.PKCS10CertificationRequest;
+import org.wso2.carbon.certificate.mgt.core.dao.CertificateDAO;
+import org.wso2.carbon.certificate.mgt.core.dao.CertificateManagementDAOException;
+import org.wso2.carbon.certificate.mgt.core.dao.CertificateManagementDAOFactory;
+import org.wso2.carbon.certificate.mgt.core.dto.CertificateResponse;
 import org.wso2.carbon.certificate.mgt.core.dto.SCEPResponse;
 import org.wso2.carbon.certificate.mgt.core.exception.KeystoreException;
 import org.wso2.carbon.certificate.mgt.core.impl.CertificateGenerator;
 import org.wso2.carbon.certificate.mgt.core.impl.KeyStoreReader;
 import org.wso2.carbon.certificate.mgt.core.util.ConfigurationUtil;
+import org.wso2.carbon.device.mgt.common.PaginationRequest;
+import org.wso2.carbon.device.mgt.common.PaginationResult;
+import org.wso2.carbon.device.mgt.core.operation.mgt.dao.OperationManagementDAOFactory;
 
 import java.io.InputStream;
 import java.security.PrivateKey;
 import java.security.cert.Certificate;
 import java.security.cert.X509Certificate;
+import java.sql.SQLException;
 import java.util.List;
 
 public class CertificateManagementServiceImpl implements CertificateManagementService {
@@ -94,6 +102,10 @@ public class CertificateManagementServiceImpl implements CertificateManagementSe
         return certificateGenerator.verifySignature(headerSignature);
     }
 
+    public CertificateResponse verifyPEMSignature(X509Certificate requestCertificate) throws KeystoreException {
+        return certificateGenerator.verifyPEMSignature(requestCertificate);
+    }
+
     public X509Certificate extractCertificateFromSignature(String headerSignature) throws KeystoreException {
         return certificateGenerator.extractCertificateFromSignature(headerSignature);
     }
@@ -106,4 +118,63 @@ public class CertificateManagementServiceImpl implements CertificateManagementSe
         return certificateGenerator.getSignedCertificateFromCSR(binarySecurityToken);
     }
 
+    public CertificateResponse getCertificateBySerial(String serial) throws KeystoreException {
+        return keyStoreReader.getCertificateBySerial(serial);
+    }
+
+    public void saveCertificate(List<org.wso2.carbon.certificate.mgt.core.bean.Certificate> certificate)
+            throws KeystoreException {
+        certificateGenerator.saveCertInKeyStore(certificate);
+    }
+
+    public X509Certificate pemToX509Certificate(String pem) throws KeystoreException {
+        return certificateGenerator.pemToX509Certificate(pem);
+    }
+
+    public CertificateResponse retrieveCertificate(String serialNumber)
+            throws CertificateManagementDAOException {
+        CertificateDAO certificateDAO;
+        try {
+            CertificateManagementDAOFactory.openConnection();
+            certificateDAO = CertificateManagementDAOFactory.getCertificateDAO();
+            return certificateDAO.retrieveCertificate(serialNumber);
+        } catch (SQLException e) {
+            String errorMsg = "Error when opening connection";
+            log.error(errorMsg, e);
+            throw new CertificateManagementDAOException(errorMsg, e);
+        } finally {
+            CertificateManagementDAOFactory.closeConnection();
+        }
+    }
+
+    public PaginationResult getAllCertificates(PaginationRequest request)
+            throws CertificateManagementDAOException {
+        try {
+            CertificateManagementDAOFactory.openConnection();
+            CertificateDAO certificateDAO = CertificateManagementDAOFactory.getCertificateDAO();
+            return certificateDAO.getAllCertificates(request);
+        } catch (SQLException e) {
+            String errorMsg = "Error when opening connection";
+            log.error(errorMsg, e);
+            throw new CertificateManagementDAOException(errorMsg, e);
+        } finally {
+            CertificateManagementDAOFactory.closeConnection();
+        }
+    }
+
+    @Override
+    public boolean removeCertificate(String serialNumber) throws CertificateManagementDAOException {
+        try {
+            CertificateManagementDAOFactory.openConnection();
+            CertificateDAO certificateDAO = CertificateManagementDAOFactory.getCertificateDAO();
+            return certificateDAO.removeCertificate(serialNumber);
+        } catch (SQLException e) {
+            String errorMsg = "Error when opening connection";
+            log.error(errorMsg, e);
+            throw new CertificateManagementDAOException(errorMsg, e);
+        } finally {
+            CertificateManagementDAOFactory.closeConnection();
+        }
+    }
+
 }

components/certificate-mgt/org.wso2.carbon.certificate.mgt.core/src/main/java/org/wso2/carbon/certificate/mgt/core/util/TenantUtil.java

@@ -0,0 +1,15 @@
+package org.wso2.carbon.certificate.mgt.core.util;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.wso2.carbon.certificate.mgt.core.exception.CertificateManagementException;
+import org.wso2.carbon.context.PrivilegedCarbonContext;
+
+public class TenantUtil {
+
+    private static final Log log = LogFactory.getLog(TenantUtil.class);
+
+    public static int getTenanntId(String tenantDomain) throws CertificateManagementException {
+        return PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
+    }
+}

components/webapp-authenticator-framework/org.wso2.carbon.webapp.authenticator.framework/pom.xml

@@ -95,8 +95,7 @@
                             javax.xml,
                             org.apache.axis2.transport.http,
                             org.wso2.carbon.apimgt.impl,
-                            org.wso2.carbon.certificate.mgt.core.service,
+                            org.wso2.carbon.certificate.mgt.core.*,
-                            org.wso2.carbon.certificate.mgt.core.exception,
                             org.wso2.carbon.device.mgt.core.permission.mgt,
                             org.wso2.carbon.device.mgt.common,
                             org.wso2.carbon.device.mgt.common.permission.mgt,

components/webapp-authenticator-framework/org.wso2.carbon.webapp.authenticator.framework/src/main/java/org/wso2/carbon/webapp/authenticator/framework/Utils/Utils.java

@@ -21,9 +21,12 @@ package org.wso2.carbon.webapp.authenticator.framework.Utils;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.wso2.carbon.base.MultitenantConstants;
+import org.wso2.carbon.context.PrivilegedCarbonContext;
 import org.wso2.carbon.identity.core.util.IdentityTenantUtil;
 import org.wso2.carbon.user.api.TenantManager;
 import org.wso2.carbon.user.api.UserStoreException;
+import org.wso2.carbon.user.core.service.RealmService;
 import org.wso2.carbon.utils.multitenancy.MultitenantUtils;
 import org.wso2.carbon.webapp.authenticator.framework.AuthenticationException;
 
@@ -47,4 +50,28 @@ public class Utils {
         }
         return tenantId;
     }
+
+    public static String getTenantDomain(int tenantId) throws AuthenticationException {
+        try {
+            PrivilegedCarbonContext.startTenantFlow();
+            PrivilegedCarbonContext ctx = PrivilegedCarbonContext.getThreadLocalCarbonContext();
+
+            RealmService realmService = (RealmService) ctx.getOSGiService(RealmService.class, null);
+            if (realmService == null) {
+                String msg = "RealmService is not initialized";
+                log.error(msg);
+                throw new AuthenticationException(msg);
+            }
+
+            return realmService.getTenantManager().getDomain(tenantId);
+
+        } catch (UserStoreException e) {
+            String msg = "User store not initialized";
+            log.error(msg);
+            throw new AuthenticationException(msg, e);
+        } finally {
+            PrivilegedCarbonContext.endTenantFlow();
+        }
+    }
+
 }

components/webapp-authenticator-framework/org.wso2.carbon.webapp.authenticator.framework/src/main/java/org/wso2/carbon/webapp/authenticator/framework/authenticator/CertificateAuthenticator.java

@@ -4,6 +4,7 @@ import org.apache.catalina.connector.Request;
 import org.apache.catalina.connector.Response;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.wso2.carbon.certificate.mgt.core.dto.CertificateResponse;
 import org.wso2.carbon.certificate.mgt.core.exception.KeystoreException;
 import org.wso2.carbon.device.mgt.common.DeviceIdentifier;
 import org.wso2.carbon.device.mgt.common.DeviceManagementConstants;
@@ -11,8 +12,10 @@ import org.wso2.carbon.device.mgt.common.EnrolmentInfo;
 import org.wso2.carbon.device.mgt.core.scep.SCEPException;
 import org.wso2.carbon.device.mgt.core.scep.SCEPManager;
 import org.wso2.carbon.device.mgt.core.scep.TenantedDeviceWrapper;
+import org.wso2.carbon.webapp.authenticator.framework.AuthenticationException;
 import org.wso2.carbon.webapp.authenticator.framework.AuthenticatorFrameworkDataHolder;
 import org.wso2.carbon.webapp.authenticator.framework.AuthenticationInfo;
+import org.wso2.carbon.webapp.authenticator.framework.Utils.Utils;
 
 import java.security.cert.X509Certificate;
 import java.util.Properties;
@@ -24,7 +27,9 @@ public class CertificateAuthenticator implements WebappAuthenticator {
 
     private static final Log log = LogFactory.getLog(CertificateAuthenticator.class);
     private static final String CERTIFICATE_AUTHENTICATOR = "CertificateAuth";
+    private static final String MUTUAL_AUTH_HEADER = "mutual-auth-header";
     private static final String CERTIFICATE_VERIFICATION_HEADER = "certificate-verification-header";
+    private static final String CLIENT_CERTIFICATE_ATTRIBUTE = "javax.servlet.request.X509Certificate";
 
     @Override
     public void init() {
@@ -33,10 +38,9 @@ public class CertificateAuthenticator implements WebappAuthenticator {
 
     @Override
     public boolean canHandle(Request request) {
-        String certVerificationHeader = request.getContext().findParameter(CERTIFICATE_VERIFICATION_HEADER);
+        if (request.getHeader(CERTIFICATE_VERIFICATION_HEADER) != null || request.getHeader(MUTUAL_AUTH_HEADER) !=
-        if (certVerificationHeader != null && !certVerificationHeader.isEmpty()) {
+                                                                         null) {
-            String certHeader = request.getHeader(certVerificationHeader);
+            return true;
-            return certHeader != null;
         }
         return false;
     }
@@ -52,7 +56,38 @@ public class CertificateAuthenticator implements WebappAuthenticator {
 
         String certVerificationHeader = request.getContext().findParameter(CERTIFICATE_VERIFICATION_HEADER);
         try {
-            if (certVerificationHeader != null && !certVerificationHeader.isEmpty()) {
+
+            if (request.getHeader(MUTUAL_AUTH_HEADER) != null) {
+                X509Certificate[] clientCertificate = (X509Certificate[]) request.
+                                                                        getAttribute(CLIENT_CERTIFICATE_ATTRIBUTE);
+                if (clientCertificate[0] != null) {
+                    CertificateResponse certificateResponse = AuthenticatorFrameworkDataHolder.getInstance().
+                            getCertificateManagementService().verifyPEMSignature(clientCertificate[0]);
+                    if (certificateResponse == null) {
+                        authenticationInfo.setStatus(Status.FAILURE);
+                        authenticationInfo.setMessage("Certificate sent doesn't match any certificate in the store." +
+                                                      " Unauthorized access attempt.");
+                    } else if (certificateResponse.getCommonName() != null && !certificateResponse.getCommonName().
+                            isEmpty()) {
+                        authenticationInfo.setTenantId(certificateResponse.getTenantId());
+                        authenticationInfo.setStatus(Status.CONTINUE);
+                        authenticationInfo.setUsername(certificateResponse.getCommonName());
+                        try {
+                            authenticationInfo.setTenantDomain(Utils.
+                                                                            getTenantDomain(
+                                                                                    certificateResponse.getTenantId()));
+                        } catch (AuthenticationException e) {
+                            authenticationInfo.setStatus(Status.FAILURE);
+                            authenticationInfo.setMessage("Could not identify tenant domain.");
+                        }
+                    } else {
+                        authenticationInfo.setStatus(Status.FAILURE);
+                        authenticationInfo.setMessage("A matching certificate is found, " +
+                                                      "but the serial number is missing in the database.");
+                    }
+
+                }
+            } else if (request.getHeader(CERTIFICATE_VERIFICATION_HEADER) != null) {
 
                 String certHeader = request.getHeader(certVerificationHeader);
                 if (certHeader != null &&
@@ -76,7 +111,7 @@ public class CertificateAuthenticator implements WebappAuthenticator {
                         authenticationInfo.setTenantDomain(tenantedDeviceWrapper.getTenantDomain());
                         authenticationInfo.setTenantId(tenantedDeviceWrapper.getTenantId());
 
-                        if(tenantedDeviceWrapper.getDevice() != null &&
+                        if (tenantedDeviceWrapper.getDevice() != null &&
                             tenantedDeviceWrapper.getDevice().getEnrolmentInfo() != null) {
 
                             EnrolmentInfo enrolmentInfo = tenantedDeviceWrapper.getDevice().getEnrolmentInfo();

features/device-mgt/org.wso2.carbon.device.mgt.server.feature/src/main/resources/dbscripts/cdm/h2.sql

@@ -8,6 +8,7 @@ CREATE TABLE IF NOT EXISTS DM_DEVICE_CERTIFICATE (
       ID                    INTEGER auto_increment NOT NULL,
       SERIAL_NUMBER            VARCHAR(500) DEFAULT NULL,
     	CERTIFICATE                  BLOB DEFAULT NULL,
+    	TENANT_ID INTEGER DEFAULT 0,
     	PRIMARY KEY (ID)
 );