diff --git a/certService/src/main/java/org/onap/aaf/certservice/certification/adapter/Cmpv2ClientAdapter.java b/certService/src/main/java/org/onap/aaf/certservice/certification/adapter/Cmpv2ClientAdapter.java
index c9e61b0..2477c42 100644
--- a/certService/src/main/java/org/onap/aaf/certservice/certification/adapter/Cmpv2ClientAdapter.java
+++ b/certService/src/main/java/org/onap/aaf/certservice/certification/adapter/Cmpv2ClientAdapter.java
@@ -29,6 +29,7 @@
 import java.security.cert.X509Certificate;
 import java.util.List;
 import java.util.stream.Collectors;
+
 import org.bouncycastle.cert.X509CertificateHolder;
 import org.bouncycastle.cert.X509v3CertificateBuilder;
 import org.bouncycastle.openssl.jcajce.JcaMiscPEMGenerator;
@@ -54,17 +55,15 @@
     private static final Logger LOGGER = LoggerFactory.getLogger(Cmpv2ClientAdapter.class);
 
     private final CmpClient cmpClient;
-    private final CsrMetaBuilder csrMetaBuilder;
     private final RsaContentSignerBuilder rsaContentSignerBuilder;
     private final X509CertificateBuilder x509CertificateBuilder;
     private final CertificateFactoryProvider certificateFactoryProvider;
 
     @Autowired
-    public Cmpv2ClientAdapter(CmpClient cmpClient, CsrMetaBuilder csrMetaBuilder,
-                              RsaContentSignerBuilder rsaContentSignerBuilder, X509CertificateBuilder x509CertificateBuilder,
+    public Cmpv2ClientAdapter(CmpClient cmpClient, RsaContentSignerBuilder rsaContentSignerBuilder,
+                              X509CertificateBuilder x509CertificateBuilder,
                               CertificateFactoryProvider certificateFactoryProvider) {
         this.cmpClient = cmpClient;
-        this.csrMetaBuilder = csrMetaBuilder;
         this.rsaContentSignerBuilder = rsaContentSignerBuilder;
         this.x509CertificateBuilder = x509CertificateBuilder;
         this.certificateFactoryProvider = certificateFactoryProvider;
@@ -82,7 +81,7 @@
     public CertificationModel callCmpClient(CsrModel csrModel, Cmpv2Server server)
             throws CmpClientException, Cmpv2ClientAdapterException {
         List<List<X509Certificate>> certificates = cmpClient.createCertificate(server.getCaName(),
-                server.getCaMode().getProfile(), csrMetaBuilder.build(csrModel, server),
+                server.getCaMode().getProfile(), csrModel, server,
                 convertCsrToX509Certificate(csrModel.getCsr(), csrModel.getPrivateKey()));
         return new CertificationModel(convertFromX509CertificateListToPemList(certificates.get(0)),
                 convertFromX509CertificateListToPemList(certificates.get(1)));
@@ -106,7 +105,7 @@
             ContentSigner signer = rsaContentSignerBuilder.build(csr, privateKey);
             X509CertificateHolder holder = certificateGenerator.build(signer);
             return certificateFactoryProvider
-                           .generateCertificate(new ByteArrayInputStream(holder.toASN1Structure().getEncoded()));
+                    .generateCertificate(new ByteArrayInputStream(holder.toASN1Structure().getEncoded()));
         } catch (IOException | CertificateException | OperatorCreationException | NoSuchProviderException e) {
             throw new Cmpv2ClientAdapterException(e);
         }
@@ -114,7 +113,7 @@
 
     private List<String> convertFromX509CertificateListToPemList(List<X509Certificate> certificates) {
         return certificates.stream().map(this::convertFromX509CertificateToPem).filter(cert -> !cert.isEmpty())
-                       .collect(Collectors.toList());
+                .collect(Collectors.toList());
     }
 
 }
diff --git a/certService/src/main/java/org/onap/aaf/certservice/certification/adapter/CsrMetaBuilder.java b/certService/src/main/java/org/onap/aaf/certservice/certification/adapter/CsrMetaBuilder.java
deleted file mode 100644
index cf35efa..0000000
--- a/certService/src/main/java/org/onap/aaf/certservice/certification/adapter/CsrMetaBuilder.java
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * ============LICENSE_START=======================================================
- * Cert Service
- * ================================================================================
- * Copyright (C) 2020 Nokia. All rights reserved.
- * ================================================================================
- * Licensed 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.
- * ============LICENSE_END=========================================================
- */
-
-package org.onap.aaf.certservice.certification.adapter;
-
-import java.security.KeyPair;
-import java.util.Arrays;
-import java.util.Optional;
-import java.util.stream.Collectors;
-
-import org.bouncycastle.asn1.x500.AttributeTypeAndValue;
-import org.bouncycastle.asn1.x500.style.BCStyle;
-import org.bouncycastle.asn1.x500.style.IETFUtils;
-import org.bouncycastle.cert.CertException;
-import org.onap.aaf.certservice.certification.configuration.model.Cmpv2Server;
-import org.onap.aaf.certservice.certification.model.CsrModel;
-import org.onap.aaf.certservice.cmpv2client.external.CsrMeta;
-import org.onap.aaf.certservice.cmpv2client.external.Rdn;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.stereotype.Component;
-
-@Component
-class CsrMetaBuilder {
-
-    private static final Logger LOGGER = LoggerFactory.getLogger(CsrMetaBuilder.class);
-
-    /**
-     * Creates CSRMeta from CsrModel and Cmpv2Server
-     *
-     * @param csrModel Certificate Signing Request from Service external  API
-     * @param server   Cmp Server configuration from cmpServers.json
-     * @return AAF native model  for CSR metadata
-     */
-    CsrMeta build(CsrModel csrModel, Cmpv2Server server) {
-        CsrMeta csrMeta = createCsrMeta(csrModel);
-        addSans(csrModel, csrMeta);
-        csrMeta.setKeyPair(new KeyPair(csrModel.getPublicKey(), csrModel.getPrivateKey()));
-        csrMeta.setPassword(server.getAuthentication().getIak());
-        csrMeta.setIssuerName(server.getIssuerDN());
-        csrMeta.setCaUrl(server.getUrl());
-        csrMeta.setName(csrModel.getSubjectData());
-        csrMeta.setSenderKid(server.getAuthentication().getRv());
-        return csrMeta;
-    }
-
-    private CsrMeta createCsrMeta(CsrModel csrModel) {
-        return new CsrMeta((Arrays.stream(csrModel.getSubjectData().getRDNs()).map(this::convertFromBcRdn)
-                                    .filter(Optional::isPresent).map(Optional::get).collect(Collectors.toList())));
-    }
-
-    private void addSans(CsrModel csrModel, CsrMeta csrMeta) {
-        csrModel.getSans().forEach(csrMeta::addSan);
-    }
-
-    private Optional<Rdn> convertFromBcRdn(org.bouncycastle.asn1.x500.RDN rdn) {
-        Rdn result = null;
-        try {
-            result = convertRdn(rdn);
-        } catch (CertException e) {
-            LOGGER.error("Exception occurred during convert of RDN", e);
-        }
-        return Optional.ofNullable(result);
-    }
-
-    private Rdn convertRdn(org.bouncycastle.asn1.x500.RDN rdn) throws CertException {
-        AttributeTypeAndValue rdnData = rdn.getFirst();
-        String tag = BCStyle.INSTANCE.oidToDisplayName(rdnData.getType());
-        String value = IETFUtils.valueToString(rdnData.getValue());
-        return new Rdn(tag, value);
-    }
-
-}
diff --git a/certService/src/main/java/org/onap/aaf/certservice/certification/model/CsrModel.java b/certService/src/main/java/org/onap/aaf/certservice/certification/model/CsrModel.java
index a29658f..d81da10 100644
--- a/certService/src/main/java/org/onap/aaf/certservice/certification/model/CsrModel.java
+++ b/certService/src/main/java/org/onap/aaf/certservice/certification/model/CsrModel.java
@@ -55,8 +55,8 @@
     private final PublicKey publicKey;
     private final List<String> sans;
 
-    CsrModel(PKCS10CertificationRequest csr, X500Name subjectData, PrivateKey privateKey, PublicKey publicKey,
-            List<String> sans) {
+    public CsrModel(PKCS10CertificationRequest csr, X500Name subjectData, PrivateKey privateKey, PublicKey publicKey,
+                    List<String> sans) {
         this.csr = csr;
         this.subjectData = subjectData;
         this.privateKey = privateKey;
diff --git a/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/api/CmpClient.java b/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/api/CmpClient.java
index 8f9d20b..7de3b71 100644
--- a/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/api/CmpClient.java
+++ b/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/api/CmpClient.java
@@ -24,8 +24,9 @@
 import java.util.Date;
 import java.util.List;
 
+import org.onap.aaf.certservice.certification.configuration.model.Cmpv2Server;
+import org.onap.aaf.certservice.certification.model.CsrModel;
 import org.onap.aaf.certservice.cmpv2client.exceptions.CmpClientException;
-import org.onap.aaf.certservice.cmpv2client.external.CsrMeta;
 
 /**
  * This class represent CmpV2Client Interface for obtaining X.509 Digital Certificates in a Public
@@ -34,53 +35,57 @@
  */
 public interface CmpClient {
 
-    /**
-     * Requests for a External Root CA Certificate to be created for the passed public keyPair wrapped
-     * in a CSRMeta with common details, accepts self-signed certificate. Basic Authentication using
-     * IAK/RV, Verification of the signature (proof-of-possession) on the request is performed and an
-     * Exception thrown if verification fails or issue encountered in fetching certificate from CA.
-     *
-     * @param caName    Information about the External Root Certificate Authority (CA) performing the
-     *                  event CA Name. Could be {@code null}.
-     * @param profile   Profile on CA server Client/RA Mode configuration on Server. Could be {@code
-     *                  null}.
-     * @param csrMeta   Certificate Signing Request Meta Data. Must not be {@code null}.
-     * @param csr       Certificate Signing Request {.cer} file. Must not be {@code null}.
-     * @param notBefore An optional validity to set in the created certificate, Certificate not valid
-     *                  before this date.
-     * @param notAfter  An optional validity to set in the created certificate, Certificate not valid
-     *                  after this date.
-     * @return {@link X509Certificate} The newly created Certificate.
-     * @throws CmpClientException if client error occurs.
-     */
-    List<List<X509Certificate>> createCertificate(
-            String caName,
-            String profile,
-            CsrMeta csrMeta,
-            X509Certificate csr,
-            Date notBefore,
-            Date notAfter)
-            throws CmpClientException;
+  /**
+   * Requests for a External Root CA Certificate to be created for the passed public keyPair wrapped
+   * in a CSRMeta with common details, accepts self-signed certificate. Basic Authentication using
+   * IAK/RV, Verification of the signature (proof-of-possession) on the request is performed and an
+   * Exception thrown if verification fails or issue encountered in fetching certificate from CA.
+   *
+   * @param caName    Information about the External Root Certificate Authority (CA) performing the
+   *                  event CA Name. Could be {@code null}.
+   * @param profile   Profile on CA server Client/RA Mode configuration on Server. Could be {@code
+   *                  null}.
+   * @param csrModel  Certificate Signing Request model. Must not be {@code null}.
+   * @param server    CMPv2 Server. Must not be {@code null}.
+   * @param csr       Certificate Signing Request {.cer} file. Must not be {@code null}.
+   * @param notBefore An optional validity to set in the created certificate, Certificate not valid
+   *                  before this date.
+   * @param notAfter  An optional validity to set in the created certificate, Certificate not valid
+   *                  after this date.
+   * @return {@link X509Certificate} The newly created Certificate.
+   * @throws CmpClientException if client error occurs.
+   */
+  List<List<X509Certificate>> createCertificate(
+      String caName,
+      String profile,
+      CsrModel csrModel,
+      Cmpv2Server server,
+      X509Certificate csr,
+      Date notBefore,
+      Date notAfter)
+      throws CmpClientException;
 
-    /**
-     * Requests for a External Root CA Certificate to be created for the passed public keyPair wrapped
-     * in a CSRMeta with common details, accepts self-signed certificate. Basic Authentication using
-     * IAK/RV, Verification of the signature (proof-of-possession) on the request is performed and an
-     * Exception thrown if verification fails or issue encountered in fetching certificate from CA.
-     *
-     * @param caName  Information about the External Root Certificate Authority (CA) performing the
-     *                event CA Name. Could be {@code null}.
-     * @param profile Profile on CA server Client/RA Mode configuration on Server. Could be {@code
-     *                null}.
-     * @param csrMeta Certificate Signing Request Meta Data. Must not be {@code null}.
-     * @param csr     Certificate Signing Request {.cer} file. Must not be {@code null}.
-     * @return {@link X509Certificate} The newly created Certificate.
-     * @throws CmpClientException if client error occurs.
-     */
-    List<List<X509Certificate>> createCertificate(
-            String caName,
-            String profile,
-            CsrMeta csrMeta,
-            X509Certificate csr)
-            throws CmpClientException;
+  /**
+   * Requests for a External Root CA Certificate to be created for the passed public keyPair wrapped
+   * in a CSRMeta with common details, accepts self-signed certificate. Basic Authentication using
+   * IAK/RV, Verification of the signature (proof-of-possession) on the request is performed and an
+   * Exception thrown if verification fails or issue encountered in fetching certificate from CA.
+   *
+   * @param caName    Information about the External Root Certificate Authority (CA) performing the
+   *                  event CA Name. Could be {@code null}.
+   * @param profile   Profile on CA server Client/RA Mode configuration on Server. Could be {@code
+   *                  null}.
+   * @param csrModel  Certificate Signing Request Model. Must not be {@code null}.
+   * @param server    CMPv2 server. Must not be {@code null}.
+   * @param csr       Certificate Signing Request {.cer} file. Must not be {@code null}.
+   * @return {@link X509Certificate} The newly created Certificate.
+   * @throws CmpClientException if client error occurs.
+   */
+  List<List<X509Certificate>> createCertificate(
+      String caName,
+      String profile,
+      CsrModel csrModel,
+      Cmpv2Server server,
+      X509Certificate csr)
+      throws CmpClientException;
 }
diff --git a/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/external/CsrMeta.java b/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/external/CsrMeta.java
deleted file mode 100644
index 4c4e784..0000000
--- a/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/external/CsrMeta.java
+++ /dev/null
@@ -1,208 +0,0 @@
-/*
- * ============LICENSE_START====================================================
- * org.onap.aaf
- * ===========================================================================
- * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
- *
- * Modifications Copyright (C) 2019 IBM.
- * ===========================================================================
- * Licensed 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.
- * ============LICENSE_END====================================================
- *
- */
-
-package org.onap.aaf.certservice.cmpv2client.external;
-
-import java.security.KeyPair;
-import java.util.ArrayList;
-import java.util.List;
-
-import org.bouncycastle.asn1.x500.X500Name;
-import org.bouncycastle.asn1.x500.X500NameBuilder;
-import org.bouncycastle.asn1.x500.style.BCStyle;
-import org.bouncycastle.asn1.x509.Certificate;
-
-public class CsrMeta {
-
-    private String cn;
-    private String mechID;
-    private String environment;
-    private String email;
-    private String challenge;
-    private String issuerCn;
-    private String issuerEmail;
-    private String password;
-    private String caUrl;
-    private List<Rdn> rdns;
-    private ArrayList<String> sanList = new ArrayList<>();
-    private KeyPair keyPair;
-    private X500Name name;
-    private X500Name issuerName;
-    private Certificate certificate;
-    private String senderKid;
-
-    public CsrMeta(List<Rdn> rdns) {
-        this.rdns = rdns;
-    }
-
-    public X500Name getX500Name() {
-        if (name == null) {
-            X500NameBuilder nameBuilder = new X500NameBuilder();
-            nameBuilder.addRDN(BCStyle.CN, cn);
-            nameBuilder.addRDN(BCStyle.E, email);
-            if (mechID != null) {
-                if (environment == null) {
-                    nameBuilder.addRDN(BCStyle.OU, mechID);
-                } else {
-                    nameBuilder.addRDN(BCStyle.OU, mechID + ':' + environment);
-                }
-            }
-            for (Rdn rdn : rdns) {
-                nameBuilder.addRDN(rdn.getAoi(), rdn.getValue());
-            }
-            name = nameBuilder.build();
-        }
-        return name;
-    }
-
-    public X500Name getIssuerX500Name() {
-        if (issuerName == null) {
-            X500NameBuilder xnb = new X500NameBuilder();
-            xnb.addRDN(BCStyle.CN, issuerCn);
-            if (issuerEmail != null) {
-                xnb.addRDN(BCStyle.E, issuerEmail);
-            }
-            issuerName = xnb.build();
-        }
-        return issuerName;
-    }
-
-    public void addSan(String san) {
-        sanList.add(san);
-    }
-
-    public List<String> getSans() {
-        return sanList;
-    }
-
-    public KeyPair getKeyPairOrGenerateIfNull() {
-        if (keyPair == null) {
-            keyPair = Factory.generateKeyPair();
-        }
-        return keyPair;
-    }
-
-    public KeyPair getKeyPair() {
-        return keyPair;
-    }
-
-    public void setKeyPair(KeyPair keyPair) {
-        this.keyPair = keyPair;
-    }
-
-    public String getCn() {
-        return cn;
-    }
-
-    public void setCn(String cn) {
-        this.cn = cn;
-    }
-
-    public void setEnvironment(String env) {
-        environment = env;
-    }
-
-    public String getEnvironment() {
-        return environment;
-    }
-
-    public String getMechID() {
-        return mechID;
-    }
-
-    public void setMechID(String mechID) {
-        this.mechID = mechID;
-    }
-
-    public String getEmail() {
-        return email;
-    }
-
-    public void setEmail(String email) {
-        this.email = email;
-    }
-
-    public String getChallenge() {
-        return challenge;
-    }
-
-    public void setChallenge(String challenge) {
-        this.challenge = challenge;
-    }
-
-    public void setPassword(String password) {
-        this.password = password;
-    }
-
-    public String getPassword() {
-        return password;
-    }
-
-    public void setCertificate(Certificate certificate) {
-        this.certificate = certificate;
-    }
-
-    public Certificate getCertificate() {
-        return certificate;
-    }
-
-    public void setIssuerCn(String issuerCn) {
-        this.issuerCn = issuerCn;
-    }
-
-    public String getCaUrl() {
-        return caUrl;
-    }
-
-    public void setCaUrl(String caUrl) {
-        this.caUrl = caUrl;
-    }
-
-    public String getSenderKid() {
-        return senderKid;
-    }
-
-    public void setSenderKid(String senderKid) {
-        this.senderKid = senderKid;
-    }
-
-    public String getIssuerCn() {
-        return issuerCn;
-    }
-
-    public String getIssuerEmail() {
-        return issuerEmail;
-    }
-
-    public void setIssuerEmail(String issuerEmail) {
-        this.issuerEmail = issuerEmail;
-    }
-
-    public void setIssuerName(X500Name issuerName) {
-        this.issuerName = issuerName;
-    }
-
-    public void setName(X500Name name) {
-        this.name = name;
-    }
-}
diff --git a/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/impl/CmpClientImpl.java b/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/impl/CmpClientImpl.java
index 39a0877..79656e9 100644
--- a/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/impl/CmpClientImpl.java
+++ b/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/impl/CmpClientImpl.java
@@ -20,6 +20,7 @@
 
 package org.onap.aaf.certservice.cmpv2client.impl;
 
+import java.security.KeyPair;
 import java.security.PublicKey;
 
 import static org.onap.aaf.certservice.cmpv2client.impl.CmpResponseHelper.checkIfCmpResponseContainsError;
@@ -47,9 +48,10 @@
 import org.bouncycastle.asn1.cmp.PKIHeader;
 import org.bouncycastle.asn1.cmp.PKIMessage;
 import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
+import org.onap.aaf.certservice.certification.configuration.model.Cmpv2Server;
+import org.onap.aaf.certservice.certification.model.CsrModel;
 import org.onap.aaf.certservice.cmpv2client.exceptions.CmpClientException;
 import org.onap.aaf.certservice.cmpv2client.api.CmpClient;
-import org.onap.aaf.certservice.cmpv2client.external.CsrMeta;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -73,36 +75,38 @@
     public List<List<X509Certificate>> createCertificate(
             String caName,
             String profile,
-            CsrMeta csrMeta,
+            CsrModel csrModel,
+            Cmpv2Server server,
             X509Certificate cert,
             Date notBefore,
             Date notAfter)
             throws CmpClientException {
-        // Validate inputs for Certificate Request
-        validate(csrMeta, cert, caName, profile, httpClient, notBefore, notAfter);
+
+        validate(csrModel, server, cert, caName, profile, httpClient, notBefore, notAfter);
+        KeyPair keyPair = new KeyPair(csrModel.getPublicKey(), csrModel.getPrivateKey());
 
         final CreateCertRequest certRequest =
                 CmpMessageBuilder.of(CreateCertRequest::new)
-                        .with(CreateCertRequest::setIssuerDn, csrMeta.getIssuerX500Name())
-                        .with(CreateCertRequest::setSubjectDn, csrMeta.getX500Name())
-                        .with(CreateCertRequest::setSansList, csrMeta.getSans())
-                        .with(CreateCertRequest::setSubjectKeyPair, csrMeta.getKeyPair())
+                        .with(CreateCertRequest::setIssuerDn, server.getIssuerDN())
+                        .with(CreateCertRequest::setSubjectDn, csrModel.getSubjectData())
+                        .with(CreateCertRequest::setSansList, csrModel.getSans())
+                        .with(CreateCertRequest::setSubjectKeyPair, keyPair)
                         .with(CreateCertRequest::setNotBefore, notBefore)
                         .with(CreateCertRequest::setNotAfter, notAfter)
-                        .with(CreateCertRequest::setInitAuthPassword, csrMeta.getPassword())
-                        .with(CreateCertRequest::setSenderKid, csrMeta.getSenderKid())
+                        .with(CreateCertRequest::setInitAuthPassword, server.getAuthentication().getIak())
+                        .with(CreateCertRequest::setSenderKid, server.getAuthentication().getRv())
                         .build();
 
         final PKIMessage pkiMessage = certRequest.generateCertReq();
         Cmpv2HttpClient cmpv2HttpClient = new Cmpv2HttpClient(httpClient);
-        return retrieveCertificates(caName, csrMeta, pkiMessage, cmpv2HttpClient);
+        return retrieveCertificates(caName, csrModel, server, pkiMessage, cmpv2HttpClient);
     }
 
     @Override
     public List<List<X509Certificate>> createCertificate(
-            String caName, String profile, CsrMeta csrMeta, X509Certificate csr)
+            String caName, String profile, CsrModel csrModel, Cmpv2Server server, X509Certificate csr)
             throws CmpClientException {
-        return createCertificate(caName, profile, csrMeta, csr, null, null);
+        return createCertificate(caName, profile, csrModel, server, csr, null, null);
     }
 
     private void checkCmpResponse(
@@ -191,14 +195,16 @@
     /**
      * Validate inputs for Certificate Creation.
      *
-     * @param csrMeta         CSRMeta Object containing variables for creating a Certificate Request.
+     * @param csrModel        Certificate Signing Request model. Must not be {@code null}.
+     * @param server          CMPv2 Server. Must not be {@code null}.
      * @param cert            Certificate object needed to validate response from CA server.
      * @param incomingCaName  Date specifying certificate is not valid before this date.
      * @param incomingProfile Date specifying certificate is not valid after this date.
      * @throws IllegalArgumentException if Before Date is set after the After Date.
      */
-    private void validate(
-            final CsrMeta csrMeta,
+    private static void validate(
+            final CsrModel csrModel,
+            final Cmpv2Server server,
             final X509Certificate cert,
             final String incomingCaName,
             final String incomingProfile,
@@ -206,20 +212,19 @@
             final Date notBefore,
             final Date notAfter) {
 
-        String caName;
-        String caProfile;
-        caName = CmpUtil.isNullOrEmpty(incomingCaName) ? incomingCaName : DEFAULT_CA_NAME;
-        caProfile = CmpUtil.isNullOrEmpty(incomingProfile) ? incomingProfile : DEFAULT_PROFILE;
+        String caName = CmpUtil.isNullOrEmpty(incomingCaName) ? incomingCaName : DEFAULT_CA_NAME;
+        String caProfile = CmpUtil.isNullOrEmpty(incomingProfile) ? incomingProfile : DEFAULT_PROFILE;
         LOG.info(
                 "Validate before creating Certificate Request for CA :{} in Mode {} ", caName, caProfile);
 
-        CmpUtil.notNull(csrMeta, "CSRMeta Instance");
-        CmpUtil.notNull(csrMeta.getX500Name(), "Subject DN");
-        CmpUtil.notNull(csrMeta.getIssuerX500Name(), "Issuer DN");
-        CmpUtil.notNull(csrMeta.getPassword(), "IAK/RV Password");
+        CmpUtil.notNull(csrModel, "CsrModel Instance");
+        CmpUtil.notNull(csrModel.getSubjectData(), "Subject DN");
+        CmpUtil.notNull(csrModel.getPrivateKey(), "Subject private key");
+        CmpUtil.notNull(csrModel.getPublicKey(), "Subject public key");
+        CmpUtil.notNull(server.getIssuerDN(), "Issuer DN");
+        CmpUtil.notNull(server.getUrl(), "External CA URL");
+        CmpUtil.notNull(server.getAuthentication().getIak(), "IAK/RV Password");
         CmpUtil.notNull(cert, "Certificate Signing Request (CSR)");
-        CmpUtil.notNull(csrMeta.getCaUrl(), "External CA URL");
-        CmpUtil.notNull(csrMeta.getKeyPairOrGenerateIfNull(), "Subject KeyPair");
         CmpUtil.notNull(httpClient, "Closeable Http Client");
 
         if (notBefore != null && notAfter != null && notBefore.compareTo(notAfter) > 0) {
@@ -228,14 +233,14 @@
     }
 
     private List<List<X509Certificate>> retrieveCertificates(
-            String caName, CsrMeta csrMeta, PKIMessage pkiMessage, Cmpv2HttpClient cmpv2HttpClient)
+            String caName, CsrModel csrModel, Cmpv2Server server, PKIMessage pkiMessage, Cmpv2HttpClient cmpv2HttpClient)
             throws CmpClientException {
-        final byte[] respBytes = cmpv2HttpClient.postRequest(pkiMessage, csrMeta.getCaUrl(), caName);
+        final byte[] respBytes = cmpv2HttpClient.postRequest(pkiMessage, server.getUrl(), caName);
         try {
             final PKIMessage respPkiMessage = PKIMessage.getInstance(respBytes);
             LOG.info("Received response from Server");
             checkIfCmpResponseContainsError(respPkiMessage);
-            checkCmpResponse(respPkiMessage, csrMeta.getKeyPairOrGenerateIfNull().getPublic(), csrMeta.getPassword());
+            checkCmpResponse(respPkiMessage, csrModel.getPublicKey(), server.getAuthentication().getIak());
             return checkCmpCertRepMessage(respPkiMessage);
         } catch (IllegalArgumentException iae) {
             CmpClientException cmpClientException =
diff --git a/certService/src/test/java/org/onap/aaf/certservice/certification/adapter/Cmpv2ClientAdapterTest.java b/certService/src/test/java/org/onap/aaf/certservice/certification/adapter/Cmpv2ClientAdapterTest.java
index 32fd207..e18d1ff 100644
--- a/certService/src/test/java/org/onap/aaf/certservice/certification/adapter/Cmpv2ClientAdapterTest.java
+++ b/certService/src/test/java/org/onap/aaf/certservice/certification/adapter/Cmpv2ClientAdapterTest.java
@@ -51,7 +51,6 @@
 import org.onap.aaf.certservice.certification.model.CsrModel;
 import org.onap.aaf.certservice.cmpv2client.api.CmpClient;
 import org.onap.aaf.certservice.cmpv2client.exceptions.CmpClientException;
-import org.onap.aaf.certservice.cmpv2client.external.CsrMeta;
 import org.springframework.boot.test.context.SpringBootTest;
 
 @SpringBootTest
@@ -83,10 +82,6 @@
     private X509Certificate certificate;
     @Mock
     private CertificateFactoryProvider certificateFactoryProvider;
-    @Mock
-    private CsrMetaBuilder csrMetaBuilder;
-    @Mock
-    private CsrMeta csrMeta;
 
     @InjectMocks
     private Cmpv2ClientAdapter adapter;
@@ -102,7 +97,7 @@
         stubInternalProperties();
 
         // When
-        Mockito.when(cmpClient.createCertificate(Mockito.any(), Mockito.any(), Mockito.any(), Mockito.any()))
+        Mockito.when(cmpClient.createCertificate(Mockito.any(), Mockito.any(), Mockito.any(), Mockito.any(), Mockito.any()))
                 .thenThrow(new CmpClientException(TEST_MSG));
 
         // Then
@@ -117,7 +112,7 @@
         stubInternalProperties();
 
         // When
-        Mockito.when(cmpClient.createCertificate(Mockito.any(), Mockito.any(), Mockito.any(), Mockito.any()))
+        Mockito.when(cmpClient.createCertificate(Mockito.any(), Mockito.any(), Mockito.any(), Mockito.any(), Mockito.any()))
                 .thenReturn(createCorrectClientResponse());
         CertificationModel certificationModel = adapter.callCmpClient(csrModel, server);
 
@@ -144,7 +139,7 @@
         stubInternalProperties();
 
         // When
-        Mockito.when(cmpClient.createCertificate(Mockito.any(), Mockito.any(), Mockito.any(), Mockito.any()))
+        Mockito.when(cmpClient.createCertificate(Mockito.any(), Mockito.any(), Mockito.any(), Mockito.any(), Mockito.any()))
                 .thenReturn(createCorrectClientResponse());
         Mockito.when(certificateFactoryProvider.generateCertificate(Mockito.any()))
                 .thenThrow(new CertificateException(TEST_MSG));
@@ -179,7 +174,6 @@
         Mockito.when(holder.toASN1Structure()).thenReturn(asn1Certificate);
         Mockito.when(certificateFactoryProvider.generateCertificate(Mockito.any())).thenReturn(certificate);
         Mockito.when(holder.toASN1Structure().getEncoded()).thenReturn("".getBytes());
-        Mockito.when(csrMetaBuilder.build(csrModel, server)).thenReturn(csrMeta);
     }
 
 }
diff --git a/certService/src/test/java/org/onap/aaf/certservice/certification/adapter/CsrMetaBuilderTest.java b/certService/src/test/java/org/onap/aaf/certservice/certification/adapter/CsrMetaBuilderTest.java
deleted file mode 100644
index feb4bdb..0000000
--- a/certService/src/test/java/org/onap/aaf/certservice/certification/adapter/CsrMetaBuilderTest.java
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * ============LICENSE_START=======================================================
- * AAF Certification Service
- * ================================================================================
- * Copyright (C) 2020 Nokia. All rights reserved.
- * ================================================================================
- * Licensed 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.
- * ============LICENSE_END=========================================================
- */
-
-package org.onap.aaf.certservice.certification.adapter;
-
-import org.bouncycastle.asn1.x500.X500Name;
-import org.bouncycastle.pkcs.PKCS10CertificationRequest;
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-import org.onap.aaf.certservice.certification.configuration.model.Authentication;
-import org.onap.aaf.certservice.certification.configuration.model.CaMode;
-import org.onap.aaf.certservice.certification.configuration.model.Cmpv2Server;
-import org.onap.aaf.certservice.certification.model.CsrModel;
-import org.onap.aaf.certservice.cmpv2client.external.CsrMeta;
-
-import java.security.PrivateKey;
-import java.security.PublicKey;
-import java.util.Arrays;
-import java.util.List;
-
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.when;
-
-public class CsrMetaBuilderTest {
-
-    private CsrMetaBuilder csrMetaBuilder;
-
-    private static final String TEST_CA = "testCA";
-    private static final X500Name TEST_SUBJECT_DATA = new X500Name("CN=testIssuer");
-
-    @BeforeEach
-    void setUp() {
-        csrMetaBuilder = new CsrMetaBuilder();
-    }
-
-    @Test
-    void shouldBuildCsrMetaWhenGivenCsrModelAndCmpv2ServerAreCorrect() {
-        // Given
-        CsrModel testCsrModel = mock(CsrModel.class);
-        Cmpv2Server testServer = createTestServer();
-
-        PKCS10CertificationRequest certificationRequest = mock(PKCS10CertificationRequest.class);
-        when(testCsrModel.getCsr()).thenReturn(certificationRequest);
-        PrivateKey mockPrivateKey = mock(PrivateKey.class);
-        when(testCsrModel.getPrivateKey()).thenReturn(mockPrivateKey);
-        PublicKey mockPublicKey = mock(PublicKey.class);
-        when(testCsrModel.getPublicKey()).thenReturn(mockPublicKey);
-        List<String> testSans = Arrays.asList("SAN01", "SAN02");
-        when(testCsrModel.getSans()).thenReturn(testSans);
-
-        when(testCsrModel.getSubjectData()).thenReturn(TEST_SUBJECT_DATA);
-
-        // When
-        CsrMeta createdCsrMeta = csrMetaBuilder.build(testCsrModel, testServer);
-
-        // Then
-        assertThat(createdCsrMeta.getPassword()).isEqualTo(testServer.getAuthentication().getIak());
-        assertThat(createdCsrMeta.getSenderKid()).isEqualTo(testServer.getAuthentication().getRv());
-        assertThat(createdCsrMeta.getCaUrl()).isEqualTo(testServer.getUrl());
-        assertThat(createdCsrMeta.getSans()).containsAll(testSans);
-        assertThat(createdCsrMeta.getKeyPair().getPrivate()).isEqualTo(mockPrivateKey);
-        assertThat(createdCsrMeta.getKeyPair().getPublic()).isEqualTo(mockPublicKey);
-        assertThat(createdCsrMeta.getX500Name()).isEqualTo(TEST_SUBJECT_DATA);
-        assertThat(createdCsrMeta.getIssuerX500Name()).isEqualTo(TEST_SUBJECT_DATA);
-    }
-
-    private Cmpv2Server createTestServer() {
-        Cmpv2Server testServer = new Cmpv2Server();
-        testServer.setCaName(TEST_CA);
-        testServer.setIssuerDN(TEST_SUBJECT_DATA);
-        testServer.setUrl("http://test.ca.server");
-        Authentication testAuthentication = new Authentication();
-        testAuthentication.setIak("testIak");
-        testAuthentication.setRv("testRv");
-        testServer.setAuthentication(testAuthentication);
-        testServer.setCaMode(CaMode.RA);
-
-        return testServer;
-    }
-
-}
diff --git a/certService/src/test/java/org/onap/aaf/certservice/cmpv2client/Cmpv2ClientTest.java b/certService/src/test/java/org/onap/aaf/certservice/cmpv2client/Cmpv2ClientTest.java
index 3f5a254..bea6b6a 100644
--- a/certService/src/test/java/org/onap/aaf/certservice/cmpv2client/Cmpv2ClientTest.java
+++ b/certService/src/test/java/org/onap/aaf/certservice/cmpv2client/Cmpv2ClientTest.java
@@ -30,7 +30,6 @@
 import java.io.OutputStream;
 import java.security.KeyFactory;
 import java.security.KeyPair;
-import java.security.KeyPairGenerator;
 import java.security.NoSuchAlgorithmException;
 import java.security.NoSuchProviderException;
 import java.security.PrivateKey;
@@ -42,7 +41,7 @@
 import java.security.spec.X509EncodedKeySpec;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
-import java.util.ArrayList;
+import java.util.Collections;
 import java.util.Date;
 import java.util.List;
 
@@ -50,15 +49,18 @@
 import org.apache.http.HttpEntity;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.impl.client.CloseableHttpClient;
-import org.bouncycastle.cert.CertException;
+import org.bouncycastle.asn1.x500.X500Name;
+import org.bouncycastle.asn1.x500.X500NameBuilder;
+import org.bouncycastle.asn1.x500.style.BCStyle;
 import org.bouncycastle.jce.provider.BouncyCastleProvider;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.mockito.Mock;
+import org.onap.aaf.certservice.certification.configuration.model.Authentication;
+import org.onap.aaf.certservice.certification.configuration.model.Cmpv2Server;
+import org.onap.aaf.certservice.certification.model.CsrModel;
 import org.onap.aaf.certservice.cmpv2client.exceptions.CmpClientException;
-import org.onap.aaf.certservice.cmpv2client.external.CsrMeta;
-import org.onap.aaf.certservice.cmpv2client.external.Rdn;
 import org.onap.aaf.certservice.cmpv2client.impl.CmpClientImpl;
 
 class Cmpv2ClientTest {
@@ -67,12 +69,11 @@
         Security.addProvider(new BouncyCastleProvider());
     }
 
-    private CsrMeta csrMeta;
+    private CsrModel csrModel;
+    private Cmpv2Server server;
     private Date notBefore;
     private Date notAfter;
-
-    @Mock
-    KeyPairGenerator kpg;
+    private X500Name dn;
 
     @Mock
     X509Certificate cert;
@@ -87,22 +88,15 @@
     HttpEntity httpEntity;
 
     private static KeyPair keyPair;
-    private static ArrayList<Rdn> rdns;
 
     @BeforeEach
     void setUp()
             throws NoSuchProviderException, NoSuchAlgorithmException, IOException,
             InvalidKeySpecException {
-        KeyPairGenerator keyGenerator;
-        keyGenerator = KeyPairGenerator.getInstance("RSA", BouncyCastleProvider.PROVIDER_NAME);
-        keyGenerator.initialize(2048);
         keyPair = loadKeyPair();
-        rdns = new ArrayList<>();
-        try {
-            rdns.add(new Rdn("O=CommonCompany"));
-        } catch (CertException e) {
-            e.printStackTrace();
-        }
+        dn = new X500NameBuilder()
+                .addRDN(BCStyle.O, "TestOrganization")
+                .build();
         initMocks(this);
     }
 
@@ -133,15 +127,10 @@
         // given
         Date beforeDate = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").parse("2019/11/11 12:00:00");
         Date afterDate = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").parse("2020/11/11 12:00:00");
-        setCsrMetaValuesAndDateValues(
-                rdns,
-                "CN=CommonName",
-                "CN=ManagementCA",
-                "CommonName.com",
-                "CommonName@cn.com",
+        setCsrModelAndServerValues(
                 "mypassword",
-                "http://127.0.0.1/ejbca/publicweb/cmp/cmp",
                 "senderKID",
+                "http://127.0.0.1/ejbca/publicweb/cmp/cmp",
                 beforeDate,
                 afterDate);
         when(httpClient.execute(any())).thenReturn(httpResponse);
@@ -164,7 +153,7 @@
         CmpClientImpl cmpClient = spy(new CmpClientImpl(httpClient));
         // when
         List<List<X509Certificate>> cmpClientResult =
-                cmpClient.createCertificate("data", "RA", csrMeta, cert, notBefore, notAfter);
+                cmpClient.createCertificate("data", "RA", csrModel, server, cert, notBefore, notAfter);
         // then
         assertNotNull(cmpClientResult);
     }
@@ -176,15 +165,10 @@
         // given
         Date beforeDate = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").parse("2019/11/11 12:00:00");
         Date afterDate = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").parse("2020/11/11 12:00:00");
-        setCsrMetaValuesAndDateValues(
-                rdns,
-                "CN=CommonName",
-                "CN=ManagementCA",
-                "CommonName.com",
-                "CommonName@cn.com",
+        setCsrModelAndServerValues(
                 "password",
-                "http://127.0.0.1/ejbca/publicweb/cmp/cmp",
                 "senderKID",
+                "http://127.0.0.1/ejbca/publicweb/cmp/cmp",
                 beforeDate,
                 afterDate);
         when(httpClient.execute(any())).thenReturn(httpResponse);
@@ -208,7 +192,7 @@
         // then
         Assertions.assertThrows(
                 CmpClientException.class,
-                () -> cmpClient.createCertificate("data", "RA", csrMeta, cert, notBefore, notAfter));
+                () -> cmpClient.createCertificate("data", "RA", csrModel, server, cert, notBefore, notAfter));
     }
 
     @Test
@@ -217,15 +201,10 @@
         // given
         Date beforeDate = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").parse("2019/11/11 12:00:00");
         Date afterDate = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").parse("2020/11/11 12:00:00");
-        setCsrMetaValuesAndDateValues(
-                rdns,
-                "CN=CommonName",
-                "CN=ManagementCA",
-                "CommonName.com",
-                "CommonName@cn.com",
+        setCsrModelAndServerValues(
                 "password",
-                "http://127.0.0.1/ejbca/publicweb/cmp/cmp",
                 "senderKID",
+                "http://127.0.0.1/ejbca/publicweb/cmp/cmp",
                 beforeDate,
                 afterDate);
         when(httpClient.execute(any())).thenReturn(httpResponse);
@@ -250,7 +229,7 @@
         // then
         Assertions.assertThrows(
                 CmpClientException.class,
-                () -> cmpClient.createCertificate("data", "RA", csrMeta, cert, notBefore, notAfter));
+                () -> cmpClient.createCertificate("data", "RA", csrModel, server, cert, notBefore, notAfter));
     }
 
     @Test
@@ -259,22 +238,17 @@
         // given
         Date beforeDate = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").parse("2020/11/11 12:00:00");
         Date afterDate = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").parse("2019/11/11 12:00:00");
-        setCsrMetaValuesAndDateValues(
-                rdns,
-                "CN=CommonName",
-                "CN=ManagementCA",
-                "CommonName.com",
-                "CommonName@cn.com",
+        setCsrModelAndServerValues(
                 "password",
-                "http://127.0.0.1/ejbca/publicweb/cmp/cmp",
                 "senderKID",
+                "http://127.0.0.1/ejbca/publicweb/cmp/cmp",
                 beforeDate,
                 afterDate);
         CmpClientImpl cmpClient = new CmpClientImpl(httpClient);
         // then
         Assertions.assertThrows(
                 IllegalArgumentException.class,
-                () -> cmpClient.createCertificate("data", "RA", csrMeta, cert, notBefore, notAfter));
+                () -> cmpClient.createCertificate("data", "RA", csrModel, server, cert, notBefore, notAfter));
     }
 
     @Test
@@ -283,15 +257,10 @@
         // given
         Date beforeDate = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").parse("2019/11/11 12:00:00");
         Date afterDate = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").parse("2020/11/11 12:00:00");
-        setCsrMetaValuesAndDateValues(
-                rdns,
-                "CN=Common",
-                "CN=CommonCA",
-                "Common.com",
-                "Common@cn.com",
+        setCsrModelAndServerValues(
                 "myPassword",
-                "http://127.0.0.1/ejbca/publicweb/cmp/cmpTest",
                 "sender",
+                "http://127.0.0.1/ejbca/publicweb/cmp/cmpTest",
                 beforeDate,
                 afterDate);
         when(httpClient.execute(any())).thenThrow(IOException.class);
@@ -299,30 +268,19 @@
         // then
         Assertions.assertThrows(
                 CmpClientException.class,
-                () -> cmpClient.createCertificate("data", "RA", csrMeta, cert, notBefore, notAfter));
+                () -> cmpClient.createCertificate("data", "RA", csrModel, server, cert, notBefore, notAfter));
     }
 
-    private void setCsrMetaValuesAndDateValues(
-            List<Rdn> rdns,
-            String cn,
-            String issuerCn,
-            String san,
-            String email,
-            String password,
-            String externalCaUrl,
-            String senderKid,
-            Date notBefore,
-            Date notAfter) {
-        csrMeta = new CsrMeta(rdns);
-        csrMeta.setCn(cn);
-        csrMeta.addSan(san);
-        csrMeta.setPassword(password);
-        csrMeta.setEmail(email);
-        csrMeta.setIssuerCn(issuerCn);
-        when(kpg.generateKeyPair()).thenReturn(keyPair);
-        csrMeta.getKeyPairOrGenerateIfNull();
-        csrMeta.setCaUrl(externalCaUrl);
-        csrMeta.setSenderKid(senderKid);
+    private void setCsrModelAndServerValues(String iak, String rv, String externalCaUrl, Date notBefore, Date notAfter) {
+        csrModel = new CsrModel(null, dn, keyPair.getPrivate(), keyPair.getPublic(), Collections.emptyList());
+
+        Authentication authentication = new Authentication();
+        authentication.setIak(iak);
+        authentication.setRv(rv);
+        server = new Cmpv2Server();
+        server.setAuthentication(authentication);
+        server.setUrl(externalCaUrl);
+        server.setIssuerDN(dn);
         this.notBefore = notBefore;
         this.notAfter = notAfter;
     }