diff --git a/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/persistence/NetworkMapStorage.kt b/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/persistence/NetworkMapStorage.kt
index 732f049443..cb86c9af6f 100644
--- a/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/persistence/NetworkMapStorage.kt
+++ b/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/persistence/NetworkMapStorage.kt
@@ -3,6 +3,7 @@ package com.r3.corda.networkmanage.common.persistence
 import com.r3.corda.networkmanage.common.utils.SignedNetworkMap
 import com.r3.corda.networkmanage.common.utils.SignedNetworkParameters
 import net.corda.core.crypto.SecureHash
+import net.corda.core.internal.DigitalSignatureWithCert
 import net.corda.nodeapi.internal.network.NetworkParameters
 
 /**
@@ -31,26 +32,28 @@ interface NetworkMapStorage {
     fun saveNetworkMap(signedNetworkMap: SignedNetworkMap)
 
     /**
-     * Return the signed network parameters object which matches the given hash. The hash is that of the underlying
-     * [NetworkParameters] object and not the `SignedData<NetworkParameters>` object that's returned.
+     * Retrieve the signed with certificate network parameters by their hash. The hash is that of the underlying
+     * [NetworkParameters] object and not the `SignedWithCert<NetworkParameters>` object that's returned.
+     * @return signed network parameters corresponding to the given hash or null if it does not exist (parameters don't exist or they haven't been signed yet)
      */
     fun getSignedNetworkParameters(hash: SecureHash): SignedNetworkParameters?
 
     /**
      * Retrieve network map parameters.
-     * @return current network map parameters or null if they don't exist
+     * @return signed current network map parameters or null if they don't exist
      */
-    fun getCurrentNetworkParameters(): NetworkParameters?
+    fun getCurrentSignedNetworkParameters(): SignedNetworkParameters?
 
     /**
-     *  Persists given network parameters.
-     *  @return hash corresponding to newly create network parameters entry
+     *  Persists given network parameters with signature if provided.
+     *  @return hash corresponding to newly created network parameters entry
      */
-    fun saveNetworkParameters(networkParameters: NetworkParameters): SecureHash
+    fun saveNetworkParameters(networkParameters: NetworkParameters, sig: DigitalSignatureWithCert?): SecureHash
 
     /**
      * Retrieves the latest (i.e. most recently inserted) network parameters
+     * Note that they may not have been signed up yet.
      * @return latest network parameters
      */
-    fun getLatestNetworkParameters(): NetworkParameters
+    fun getLatestUnsignedNetworkParameters(): NetworkParameters
 }
\ No newline at end of file
diff --git a/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/persistence/PersistentNetworkMapStorage.kt b/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/persistence/PersistentNetworkMapStorage.kt
index 740885dee0..0e328f853a 100644
--- a/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/persistence/PersistentNetworkMapStorage.kt
+++ b/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/persistence/PersistentNetworkMapStorage.kt
@@ -3,9 +3,9 @@ package com.r3.corda.networkmanage.common.persistence
 import com.r3.corda.networkmanage.common.persistence.entity.*
 import com.r3.corda.networkmanage.common.utils.SignedNetworkMap
 import com.r3.corda.networkmanage.common.utils.SignedNetworkParameters
-import com.r3.corda.networkmanage.doorman.signer.LocalSigner
 import net.corda.core.crypto.SecureHash
 import net.corda.core.crypto.sha256
+import net.corda.core.internal.DigitalSignatureWithCert
 import net.corda.core.serialization.SerializedBytes
 import net.corda.core.serialization.deserialize
 import net.corda.core.serialization.serialize
@@ -16,7 +16,7 @@ import net.corda.nodeapi.internal.persistence.CordaPersistence
 /**
  * Database implementation of the [NetworkMapStorage] interface
  */
-class PersistentNetworkMapStorage(private val database: CordaPersistence, private val localSigner: LocalSigner?) : NetworkMapStorage {
+class PersistentNetworkMapStorage(private val database: CordaPersistence) : NetworkMapStorage {
     override fun getCurrentNetworkMap(): SignedNetworkMap? {
         return database.transaction {
             getCurrentNetworkMapEntity()?.let {
@@ -26,11 +26,11 @@ class PersistentNetworkMapStorage(private val database: CordaPersistence, privat
         }
     }
 
-    override fun getCurrentNetworkParameters(): NetworkParameters? {
+    override fun getCurrentSignedNetworkParameters(): SignedNetworkParameters? {
         return database.transaction {
             getCurrentNetworkMapEntity()?.let {
                 val netParamsHash = it.networkMap.deserialize<NetworkMap>().networkParameterHash
-                getNetworkParametersEntity(netParamsHash.toString())?.networkParameters()
+                getSignedNetworkParameters(netParamsHash)
             }
         }
     }
@@ -46,12 +46,8 @@ class PersistentNetworkMapStorage(private val database: CordaPersistence, privat
         }
     }
 
-    // TODO The signing cannot occur here as it won't work with an HSM. The signed network parameters needs to be persisted
-    // into the database.
     override fun getSignedNetworkParameters(hash: SecureHash): SignedNetworkParameters? {
-        val netParamsBytes = getNetworkParametersEntity(hash.toString())?.parametersBytes ?: return null
-        val sigWithCert = localSigner!!.signBytes(netParamsBytes)
-        return SignedNetworkParameters(SerializedBytes(netParamsBytes), sigWithCert)
+        return getNetworkParametersEntity(hash.toString())?.signedParameters()
     }
 
     override fun getNodeInfoHashes(certificateStatus: CertificateStatus): List<SecureHash> {
@@ -69,31 +65,32 @@ class PersistentNetworkMapStorage(private val database: CordaPersistence, privat
         }
     }
 
-    override fun saveNetworkParameters(networkParameters: NetworkParameters): SecureHash {
+    override fun saveNetworkParameters(networkParameters: NetworkParameters, sig: DigitalSignatureWithCert?): SecureHash {
         return database.transaction {
             val bytes = networkParameters.serialize().bytes
             val hash = bytes.sha256()
-            session.save(NetworkParametersEntity(
+            session.saveOrUpdate(NetworkParametersEntity(
                     parametersBytes = bytes,
-                    parametersHash = hash.toString()
+                    parametersHash = hash.toString(),
+                    signature = sig?.bytes,
+                    certificate = sig?.by?.encoded
             ))
             hash
         }
     }
 
-    override fun getLatestNetworkParameters(): NetworkParameters = getLatestNetworkParametersEntity().networkParameters()
+    override fun getLatestUnsignedNetworkParameters(): NetworkParameters = getLatestNetworkParametersEntity().networkParameters()
 
     private fun getLatestNetworkParametersEntity(): NetworkParametersEntity {
         return database.transaction {
             val builder = session.criteriaBuilder
             val query = builder.createQuery(NetworkParametersEntity::class.java).run {
-                // TODO a limit of 1 since we only need the first result
                 from(NetworkParametersEntity::class.java).run {
-                    orderBy(builder.desc(get<String>(NetworkParametersEntity::version.name)))
+                    orderBy(builder.desc(get<String>(NetworkParametersEntity::created.name)))
                 }
             }
-            // We just want the last signed entry
-            session.createQuery(query).resultList.first()
+            // We just want the last entry
+            session.createQuery(query).setMaxResults(1).resultList.singleOrNull() ?: throw IllegalArgumentException("No network parameters found in network map storage")
         }
     }
 
diff --git a/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/persistence/entity/NetworkParametersEntity.kt b/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/persistence/entity/NetworkParametersEntity.kt
index 639787ed70..ca445a1f02 100644
--- a/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/persistence/entity/NetworkParametersEntity.kt
+++ b/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/persistence/entity/NetworkParametersEntity.kt
@@ -1,22 +1,47 @@
 package com.r3.corda.networkmanage.common.persistence.entity
 
+import com.r3.corda.networkmanage.common.utils.SignedNetworkParameters
+import net.corda.core.internal.DigitalSignatureWithCert
+import net.corda.core.internal.SignedDataWithCert
+import net.corda.core.serialization.SerializedBytes
 import net.corda.core.serialization.deserialize
+import net.corda.nodeapi.internal.crypto.X509CertificateFactory
 import net.corda.nodeapi.internal.network.NetworkParameters
+import org.hibernate.annotations.CreationTimestamp
+import java.time.Instant
 import javax.persistence.*
 
 @Entity
-@Table(name = "network_parameters")
+@Table(name = "network_parameters", indexes = arrayOf(Index(name = "IDX_NET_PARAMS_HASH", columnList = "hash")))
 class NetworkParametersEntity(
         @Id
-        @GeneratedValue(strategy = GenerationType.SEQUENCE)
-        val version: Long? = null,
-
         @Column(name = "hash", length = 64, unique = true)
         val parametersHash: String,
 
+        @CreationTimestamp
+        val created: Instant = Instant.now(),
+
         @Lob
-        @Column(name = "bytes")
-        val parametersBytes: ByteArray
+        @Column(name = "parameters_bytes")
+        val parametersBytes: ByteArray,
+
+        // Both of the fields below are nullable, because of the way we sign network map data. NetworkParameters can be
+        // inserted into database without signature. Then signing service will sign them.
+        @Lob
+        @Column(name = "signature")
+        val signature: ByteArray?,
+
+        @Lob
+        @Column(name = "certificate")
+        val certificate: ByteArray?
 ) {
     fun networkParameters(): NetworkParameters = parametersBytes.deserialize()
+
+    // Return signed network parameters or null if they haven't been signed yet.
+    fun signedParameters(): SignedNetworkParameters? {
+        return if (certificate != null && signature != null) {
+            val sigWithCert = DigitalSignatureWithCert(X509CertificateFactory().generateCertificate(certificate.inputStream()), signature)
+            SignedDataWithCert(SerializedBytes(parametersBytes), sigWithCert)
+        } else null
+    }
 }
\ No newline at end of file
diff --git a/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/signer/NetworkMapSigner.kt b/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/signer/NetworkMapSigner.kt
index cafc5e7469..5d3d3b15e8 100644
--- a/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/signer/NetworkMapSigner.kt
+++ b/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/signer/NetworkMapSigner.kt
@@ -5,19 +5,33 @@ import com.r3.corda.networkmanage.common.persistence.NetworkMapStorage
 import net.corda.core.internal.SignedDataWithCert
 import net.corda.core.serialization.serialize
 import net.corda.nodeapi.internal.network.NetworkMap
+import net.corda.nodeapi.internal.network.NetworkParameters
 
 class NetworkMapSigner(private val networkMapStorage: NetworkMapStorage, private val signer: Signer) {
     /**
-     * Signs the network map.
+     * Signs the network map and latest network parameters if they haven't been signed yet.
      */
     fun signNetworkMap() {
+        // TODO There is no network parameters update process in place yet. We assume that latest parameters are to be used
+        // in current network map.
+        val latestNetworkParameters = networkMapStorage.getLatestUnsignedNetworkParameters()
+        val currentNetworkParameters = networkMapStorage.getCurrentSignedNetworkParameters()
+        if (currentNetworkParameters?.verified() != latestNetworkParameters)
+            signNetworkParameters(latestNetworkParameters)
         val currentSignedNetworkMap = networkMapStorage.getCurrentNetworkMap()
         val nodeInfoHashes = networkMapStorage.getNodeInfoHashes(CertificateStatus.VALID)
-        val networkParameters = networkMapStorage.getLatestNetworkParameters()
-        val serialisedNetworkMap = NetworkMap(nodeInfoHashes, networkParameters.serialize().hash).serialize()
+        val serialisedNetworkMap = NetworkMap(nodeInfoHashes, latestNetworkParameters.serialize().hash).serialize()
         if (serialisedNetworkMap != currentSignedNetworkMap?.raw) {
             val newSignedNetworkMap = SignedDataWithCert(serialisedNetworkMap, signer.signBytes(serialisedNetworkMap.bytes))
             networkMapStorage.saveNetworkMap(newSignedNetworkMap)
         }
     }
+
+    /**
+     * Signs latest inserted network parameters.
+     */
+    fun signNetworkParameters(networkParameters: NetworkParameters) {
+        val digitalSignature = signer.signObject(networkParameters).sig
+        networkMapStorage.saveNetworkParameters(networkParameters, digitalSignature)
+    }
 }
\ No newline at end of file
diff --git a/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/signer/Signer.kt b/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/signer/Signer.kt
index 40a030c2b0..0fadd2f69c 100644
--- a/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/signer/Signer.kt
+++ b/network-management/src/main/kotlin/com/r3/corda/networkmanage/common/signer/Signer.kt
@@ -9,7 +9,7 @@ import net.corda.core.serialization.serialize
  */
 interface Signer {
     /**
-     * Signs given bytes. The signing key selction strategy is left to the implementing class.
+     * Signs given bytes. The signing key selection strategy is left to the implementing class.
      * @return [DigitalSignatureWithCert] that encapsulates the signature and the certificate path used in the signing process.
      * @throws [AuthenticationException] if fails authentication
      */
diff --git a/network-management/src/main/kotlin/com/r3/corda/networkmanage/doorman/Main.kt b/network-management/src/main/kotlin/com/r3/corda/networkmanage/doorman/Main.kt
index 9cce45f4ec..74fe5885b0 100644
--- a/network-management/src/main/kotlin/com/r3/corda/networkmanage/doorman/Main.kt
+++ b/network-management/src/main/kotlin/com/r3/corda/networkmanage/doorman/Main.kt
@@ -52,14 +52,15 @@ class NetworkManagementServer : Closeable {
     }
 
     private fun getNetworkMapService(config: NetworkMapConfig, database: CordaPersistence, signer: LocalSigner?, updateNetworkParameters: NetworkParameters?): NodeInfoWebService {
-        val networkMapStorage = PersistentNetworkMapStorage(database, signer)
+        val networkMapStorage = PersistentNetworkMapStorage(database)
         val nodeInfoStorage = PersistentNodeInfoStorage(database)
+        val localNetworkMapSigner = if (signer != null) NetworkMapSigner(networkMapStorage, signer) else null
 
         updateNetworkParameters?.let {
             // Persisting new network parameters
-            val currentNetworkParameters = networkMapStorage.getCurrentNetworkParameters()
+            val currentNetworkParameters = networkMapStorage.getCurrentSignedNetworkParameters()
             if (currentNetworkParameters == null) {
-                networkMapStorage.saveNetworkParameters(it)
+                localNetworkMapSigner?.signNetworkParameters(it) ?: networkMapStorage.saveNetworkParameters(it, null)
             } else {
                 throw UnsupportedOperationException("Network parameters already exist. Updating them via the file config is not supported yet.")
             }
@@ -67,21 +68,19 @@ class NetworkManagementServer : Closeable {
 
         // This call will fail if parameter is null in DB.
         try {
-            val latestParameter = networkMapStorage.getLatestNetworkParameters()
+            val latestParameter = networkMapStorage.getLatestUnsignedNetworkParameters()
             logger.info("Starting network map service with network parameters : $latestParameter")
         } catch (e: NoSuchElementException) {
             logger.error("No network parameter found, please upload new network parameter before starting network map service. The server will now exit.")
             exitProcess(-1)
         }
 
-        val networkMapSigner = if (signer != null) NetworkMapSigner(networkMapStorage, signer) else null
-
         // Thread sign network map in case of change (i.e. a new node info has been added or a node info has been removed).
-        if (networkMapSigner != null) {
+        if (localNetworkMapSigner != null) {
             val scheduledExecutor = Executors.newScheduledThreadPool(1)
             val signingThread = Runnable {
                 try {
-                    networkMapSigner.signNetworkMap()
+                    localNetworkMapSigner.signNetworkMap()
                 } catch (e: Exception) {
                     // Log the error and carry on.
                     logger.error("Error encountered when processing node info changes.", e)
@@ -141,7 +140,6 @@ class NetworkManagementServer : Closeable {
         val services = mutableListOf<Any>()
         val serverStatus = NetworkManagementServerStatus()
 
-        // TODO: move signing to signing server.
         startNetworkMap?.let { services += getNetworkMapService(it.config, database, it.signer, it.updateNetworkParameters) }
         doormanServiceParameter?.let { services += getDoormanService(it, database, doormanSigner, serverStatus) }
 
diff --git a/network-management/src/main/kotlin/com/r3/corda/networkmanage/doorman/webservice/NodeInfoWebService.kt b/network-management/src/main/kotlin/com/r3/corda/networkmanage/doorman/webservice/NodeInfoWebService.kt
index 0408aa5f56..57418b3d9c 100644
--- a/network-management/src/main/kotlin/com/r3/corda/networkmanage/doorman/webservice/NodeInfoWebService.kt
+++ b/network-management/src/main/kotlin/com/r3/corda/networkmanage/doorman/webservice/NodeInfoWebService.kt
@@ -7,6 +7,7 @@ import com.r3.corda.networkmanage.common.persistence.NetworkMapStorage
 import com.r3.corda.networkmanage.common.persistence.NodeInfoStorage
 import com.r3.corda.networkmanage.common.persistence.NodeInfoWithSigned
 import com.r3.corda.networkmanage.common.utils.SignedNetworkMap
+import com.r3.corda.networkmanage.common.utils.SignedNetworkParameters
 import com.r3.corda.networkmanage.doorman.NetworkMapConfig
 import com.r3.corda.networkmanage.doorman.webservice.NodeInfoWebService.Companion.NETWORK_MAP_PATH
 import net.corda.core.crypto.SecureHash
@@ -41,7 +42,7 @@ class NodeInfoWebService(private val nodeInfoStorage: NodeInfoStorage,
 
     private val networkMapCache: LoadingCache<Boolean, Pair<SignedNetworkMap?, NetworkParameters?>> = CacheBuilder.newBuilder()
             .expireAfterWrite(config.cacheTimeout, TimeUnit.MILLISECONDS)
-            .build(CacheLoader.from { _ -> Pair(networkMapStorage.getCurrentNetworkMap(), networkMapStorage.getCurrentNetworkParameters()) })
+            .build(CacheLoader.from { _ -> Pair(networkMapStorage.getCurrentNetworkMap(), networkMapStorage.getCurrentSignedNetworkParameters()?.verified()) })
 
     @POST
     @Path("publish")
diff --git a/network-management/src/main/kotlin/com/r3/corda/networkmanage/hsm/Main.kt b/network-management/src/main/kotlin/com/r3/corda/networkmanage/hsm/Main.kt
index 5b8668cfbf..4e25900f68 100644
--- a/network-management/src/main/kotlin/com/r3/corda/networkmanage/hsm/Main.kt
+++ b/network-management/src/main/kotlin/com/r3/corda/networkmanage/hsm/Main.kt
@@ -46,8 +46,7 @@ fun run(parameters: Parameters) {
         checkNotNull(dataSourceProperties)
         val database = configureDatabase(dataSourceProperties, databaseConfig)
         val csrStorage = DBSignedCertificateRequestStorage(database)
-        // TODO Remove the dependency for a local signer to make signing of network parameters work with an HSM
-        val networkMapStorage = PersistentNetworkMapStorage(database, localSigner = null)
+        val networkMapStorage = PersistentNetworkMapStorage(database)
         val hsmNetworkMapSigningThread = HsmNetworkMapSigner(
                 networkMapStorage,
                 networkMapCertificateName,
diff --git a/network-management/src/main/resources/migration/network-manager.changelog-init.xml b/network-management/src/main/resources/migration/network-manager.changelog-init.xml
index 59a5f4985e..0b9be92b91 100644
--- a/network-management/src/main/resources/migration/network-manager.changelog-init.xml
+++ b/network-management/src/main/resources/migration/network-manager.changelog-init.xml
@@ -93,11 +93,13 @@
     </changeSet>
     <changeSet author="R3.Corda" id="1513267683777-8">
         <createTable tableName="network_parameters">
-            <column name="version" type="BIGINT">
+            <column name="hash" type="NVARCHAR(64)">
                 <constraints nullable="false"/>
             </column>
-            <column name="bytes" type="BLOB"/>
-            <column name="hash" type="NVARCHAR(64)"/>
+            <column name="certificate" type="BLOB"/>
+            <column name="created" type="TIMESTAMP"/>
+            <column name="parameters_bytes" type="BLOB"/>
+            <column name="signature" type="BLOB"/>
         </createTable>
     </changeSet>
     <changeSet author="R3.Corda" id="1513267683777-9">
@@ -120,7 +122,7 @@
         </createTable>
     </changeSet>
     <changeSet author="R3.Corda" id="1513267683777-11">
-        <addPrimaryKey columnNames="version" constraintName="CONSTRAINT_3" tableName="network_parameters"/>
+        <addPrimaryKey columnNames="hash" constraintName="CONSTRAINT_3" tableName="network_parameters"/>
     </changeSet>
     <changeSet author="R3.Corda" id="1513267683777-12">
         <addPrimaryKey columnNames="id" constraintName="CONSTRAINT_7" tableName="certificate_data"/>
@@ -167,6 +169,11 @@
             <column name="public_key_hash"/>
         </createIndex>
     </changeSet>
+    <changeSet author="R3.Corda" id="network-parameters-idx">
+        <createIndex indexName="IDX_NET_PARAMS_HASH" tableName="network_parameters">
+            <column name="hash"/>
+        </createIndex>
+    </changeSet>
     <changeSet author="R3.Corda" id="1513267683777-24">
         <addForeignKeyConstraint baseColumnNames="rev" baseTableName="certificate_signing_request_AUD"
                                  constraintName="FK5g5cagcrx7siu8lwtavirunxd"
diff --git a/network-management/src/test/kotlin/com/r3/corda/networkmanage/common/persistence/PersistentNetworkMapStorageTest.kt b/network-management/src/test/kotlin/com/r3/corda/networkmanage/common/persistence/PersistentNetworkMapStorageTest.kt
index 01e95a7277..af75cf07b7 100644
--- a/network-management/src/test/kotlin/com/r3/corda/networkmanage/common/persistence/PersistentNetworkMapStorageTest.kt
+++ b/network-management/src/test/kotlin/com/r3/corda/networkmanage/common/persistence/PersistentNetworkMapStorageTest.kt
@@ -1,7 +1,6 @@
 package com.r3.corda.networkmanage.common.persistence
 
 import com.r3.corda.networkmanage.TestBase
-import com.r3.corda.networkmanage.doorman.signer.LocalSigner
 import net.corda.core.identity.CordaX500Name
 import net.corda.core.internal.signWithCert
 import net.corda.nodeapi.internal.createDevNetworkMapCa
@@ -37,7 +36,7 @@ class PersistentNetworkMapStorageTest : TestBase() {
         rootCaCert = rootCa.certificate
         networkMapCa = createDevNetworkMapCa(rootCa)
         persistence = configureDatabase(makeTestDataSourceProperties(), DatabaseConfig(runMigration = true))
-        networkMapStorage = PersistentNetworkMapStorage(persistence, LocalSigner(networkMapCa.keyPair, arrayOf(networkMapCa.certificate, rootCaCert)))
+        networkMapStorage = PersistentNetworkMapStorage(persistence)
         nodeInfoStorage = PersistentNodeInfoStorage(persistence)
         requestStorage = PersistentCertificateRequestStorage(persistence)
     }
@@ -48,15 +47,16 @@ class PersistentNetworkMapStorageTest : TestBase() {
     }
 
     @Test
-    fun `signNetworkMap creates current network map`() {
+    fun `saveNetworkMap and saveNetworkParameters create current network map and parameters`() {
         // given
         // Create node info.
         val signedNodeInfo = createValidSignedNodeInfo("Test")
         val nodeInfoHash = nodeInfoStorage.putNodeInfo(signedNodeInfo)
 
+        val networkParameters = testNetworkParameters(emptyList())
+        val parametersSignature = networkParameters.signWithCert(networkMapCa.keyPair.private, networkMapCa.certificate).sig
         // Create network parameters
-        val networkParametersHash = networkMapStorage.saveNetworkParameters(testNetworkParameters(emptyList()))
-
+        val networkParametersHash = networkMapStorage.saveNetworkParameters(networkParameters, parametersSignature)
         val networkMap = NetworkMap(listOf(nodeInfoHash), networkParametersHash)
         val signedNetworkMap = networkMap.signWithCert(networkMapCa.keyPair.private, networkMapCa.certificate)
 
@@ -65,20 +65,26 @@ class PersistentNetworkMapStorageTest : TestBase() {
 
         // then
         val persistedSignedNetworkMap = networkMapStorage.getCurrentNetworkMap()
+        val persistedSignedParameters = networkMapStorage.getCurrentSignedNetworkParameters()
 
+        assertEquals(networkParameters, persistedSignedParameters?.verifiedNetworkMapCert(rootCaCert))
+        assertEquals(parametersSignature, persistedSignedParameters?.sig)
         assertEquals(signedNetworkMap.sig, persistedSignedNetworkMap?.sig)
         assertEquals(signedNetworkMap.verifiedNetworkMapCert(rootCaCert), persistedSignedNetworkMap?.verifiedNetworkMapCert(rootCaCert))
+        assertEquals(signedNetworkMap.verifiedNetworkMapCert(rootCaCert).networkParameterHash, persistedSignedParameters?.raw?.hash)
     }
 
     @Test
     fun `getLatestNetworkParameters returns last inserted`() {
+        val params1 = testNetworkParameters(emptyList(), minimumPlatformVersion = 1)
+        val params2 = testNetworkParameters(emptyList(), minimumPlatformVersion = 2)
         // given
-        networkMapStorage.saveNetworkParameters(testNetworkParameters(emptyList(), minimumPlatformVersion = 1))
-        networkMapStorage.saveNetworkParameters(testNetworkParameters(emptyList(), minimumPlatformVersion = 2))
+        networkMapStorage.saveNetworkParameters(params1, params1.signWithCert(networkMapCa.keyPair.private, networkMapCa.certificate).sig)
+        // We may have not signed them yet.
+        networkMapStorage.saveNetworkParameters(params2, null)
 
         // when
-        val latest = networkMapStorage.getLatestNetworkParameters()
-
+        val latest = networkMapStorage.getLatestUnsignedNetworkParameters()
         // then
         assertEquals(2, latest.minimumPlatformVersion)
     }
@@ -87,7 +93,8 @@ class PersistentNetworkMapStorageTest : TestBase() {
     fun `getCurrentNetworkParameters returns current network map parameters`() {
         // given
         // Create network parameters
-        val networkParametersHash = networkMapStorage.saveNetworkParameters(testNetworkParameters(emptyList()))
+        val testParameters1 = testNetworkParameters(emptyList())
+        val networkParametersHash = networkMapStorage.saveNetworkParameters(testParameters1, testParameters1.signWithCert(networkMapCa.keyPair.private, networkMapCa.certificate).sig)
         // Create empty network map
 
         // Sign network map making it current network map
@@ -96,25 +103,16 @@ class PersistentNetworkMapStorageTest : TestBase() {
         networkMapStorage.saveNetworkMap(signedNetworkMap)
 
         // Create new network parameters
-        networkMapStorage.saveNetworkParameters(testNetworkParameters(emptyList(), minimumPlatformVersion = 2))
+        val testParameters2 = testNetworkParameters(emptyList(), minimumPlatformVersion = 2)
+        networkMapStorage.saveNetworkParameters(testParameters2, testParameters2.signWithCert(networkMapCa.keyPair.private, networkMapCa.certificate).sig)
 
         // when
-        val result = networkMapStorage.getCurrentNetworkParameters()
+        val result = networkMapStorage.getCurrentSignedNetworkParameters()?.verifiedNetworkMapCert(rootCaCert)
 
         // then
         assertEquals(1, result?.minimumPlatformVersion)
     }
 
-    // This test will probably won't be needed when we remove the explicit use of LocalSigner
-    @Test
-    fun `getSignedNetworkParameters uses the local signer to return a signed object`() {
-        val networkParameters = testNetworkParameters(emptyList())
-        val netParamsHash = networkMapStorage.saveNetworkParameters(networkParameters)
-        val signedNetworkParameters = networkMapStorage.getSignedNetworkParameters(netParamsHash)
-        assertThat(signedNetworkParameters?.verifiedNetworkMapCert(rootCaCert)).isEqualTo(networkParameters)
-        assertThat(signedNetworkParameters?.sig?.by).isEqualTo(networkMapCa.certificate)
-    }
-
     @Test
     fun `getValidNodeInfoHashes returns only valid and signed node info hashes`() {
         // given
@@ -127,7 +125,8 @@ class PersistentNetworkMapStorageTest : TestBase() {
         val nodeInfoHashB = nodeInfoStorage.putNodeInfo(signedNodeInfoB)
 
         // Create network parameters
-        val networkParametersHash = networkMapStorage.saveNetworkParameters(testNetworkParameters(emptyList()))
+        val testParameters = testNetworkParameters(emptyList())
+        val networkParametersHash = networkMapStorage.saveNetworkParameters(testParameters, testParameters.signWithCert(networkMapCa.keyPair.private, networkMapCa.certificate).sig)
         val networkMap = NetworkMap(listOf(nodeInfoHashA), networkParametersHash)
         val signedNetworkMap = networkMap.signWithCert(networkMapCa.keyPair.private, networkMapCa.certificate)
 
diff --git a/network-management/src/test/kotlin/com/r3/corda/networkmanage/common/persistence/PersistentNodeInfoStorageTest.kt b/network-management/src/test/kotlin/com/r3/corda/networkmanage/common/persistence/PersistentNodeInfoStorageTest.kt
index b20d30a188..01eba0be7a 100644
--- a/network-management/src/test/kotlin/com/r3/corda/networkmanage/common/persistence/PersistentNodeInfoStorageTest.kt
+++ b/network-management/src/test/kotlin/com/r3/corda/networkmanage/common/persistence/PersistentNodeInfoStorageTest.kt
@@ -6,9 +6,7 @@ import com.r3.corda.networkmanage.common.utils.hashString
 import net.corda.core.crypto.Crypto
 import net.corda.core.crypto.SecureHash
 import net.corda.core.identity.CordaX500Name
-import net.corda.core.node.NodeInfo
 import net.corda.core.serialization.serialize
-import net.corda.nodeapi.internal.SignedNodeInfo
 import net.corda.nodeapi.internal.crypto.CertificateAndKeyPair
 import net.corda.nodeapi.internal.crypto.CertificateType
 import net.corda.nodeapi.internal.crypto.X509CertificateFactory
@@ -33,7 +31,6 @@ class PersistentNodeInfoStorageTest : TestBase() {
     private lateinit var requestStorage: CertificationRequestStorage
     private lateinit var nodeInfoStorage: PersistentNodeInfoStorage
     private lateinit var persistence: CordaPersistence
-
     private lateinit var rootCaCert: X509Certificate
     private lateinit var intermediateCa: CertificateAndKeyPair
 
diff --git a/network-management/src/test/kotlin/com/r3/corda/networkmanage/common/signer/NetworkMapSignerTest.kt b/network-management/src/test/kotlin/com/r3/corda/networkmanage/common/signer/NetworkMapSignerTest.kt
index 014fd0895e..dc29826d1b 100644
--- a/network-management/src/test/kotlin/com/r3/corda/networkmanage/common/signer/NetworkMapSignerTest.kt
+++ b/network-management/src/test/kotlin/com/r3/corda/networkmanage/common/signer/NetworkMapSignerTest.kt
@@ -8,6 +8,7 @@ import net.corda.core.crypto.Crypto
 import net.corda.core.crypto.SecureHash
 import net.corda.core.crypto.sha256
 import net.corda.core.internal.DigitalSignatureWithCert
+import net.corda.core.internal.SignedDataWithCert
 import net.corda.core.internal.signWithCert
 import net.corda.core.serialization.serialize
 import net.corda.nodeapi.internal.createDevNetworkMapCa
@@ -16,10 +17,10 @@ import net.corda.nodeapi.internal.network.NetworkMap
 import net.corda.nodeapi.internal.network.verifiedNetworkMapCert
 import net.corda.testing.common.internal.testNetworkParameters
 import net.corda.testing.internal.createDevIntermediateCaCertPath
+import java.security.cert.X509Certificate
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.Before
 import org.junit.Test
-import java.security.cert.X509Certificate
 import kotlin.test.assertEquals
 
 class NetworkMapSignerTest : TestBase() {
@@ -41,18 +42,24 @@ class NetworkMapSignerTest : TestBase() {
     }
 
     @Test
-    fun `signNetworkMap builds and signs network map`() {
+    fun `signNetworkMap builds and signs network map and network parameters`() {
         // given
         val signedNodeInfoHashes = listOf(SecureHash.randomSHA256(), SecureHash.randomSHA256())
-        val networkParameters = testNetworkParameters(emptyList())
-        val networkMap = NetworkMap(signedNodeInfoHashes, SecureHash.randomSHA256())
+        val currentParameters = testNetworkParameters(emptyList(), minimumPlatformVersion = 1)
+        val latestNetworkParameters = testNetworkParameters(emptyList(), minimumPlatformVersion = 2)
+        val networkMap = NetworkMap(signedNodeInfoHashes, currentParameters.serialize().hash)
         val signedNetworkMap = networkMap.signWithCert(networkMapCa.keyPair.private, networkMapCa.certificate)
         whenever(networkMapStorage.getCurrentNetworkMap()).thenReturn(signedNetworkMap)
         whenever(networkMapStorage.getNodeInfoHashes(any())).thenReturn(signedNodeInfoHashes)
-        whenever(networkMapStorage.getLatestNetworkParameters()).thenReturn(networkParameters)
+        whenever(networkMapStorage.getLatestUnsignedNetworkParameters()).thenReturn(latestNetworkParameters)
+        whenever(networkMapStorage.getCurrentSignedNetworkParameters()).thenReturn(currentParameters.signWithCert(networkMapCa.keyPair.private, networkMapCa.certificate))
         whenever(signer.signBytes(any())).then {
             DigitalSignatureWithCert(networkMapCa.certificate, Crypto.doSign(networkMapCa.keyPair.private, it.arguments[0] as ByteArray))
         }
+        whenever(signer.signObject(latestNetworkParameters)).then {
+            val serialised = latestNetworkParameters.serialize()
+            SignedDataWithCert(serialised, signer.signBytes(serialised.bytes))
+        }
 
         // when
         networkMapSigner.signNetworkMap()
@@ -60,11 +67,12 @@ class NetworkMapSignerTest : TestBase() {
         // then
         // Verify networkMapStorage calls
         verify(networkMapStorage).getNodeInfoHashes(any())
-        verify(networkMapStorage).getLatestNetworkParameters()
+        verify(networkMapStorage).getLatestUnsignedNetworkParameters()
+        verify(networkMapStorage).getCurrentSignedNetworkParameters()
         argumentCaptor<SignedNetworkMap>().apply {
             verify(networkMapStorage).saveNetworkMap(capture())
             val capturedNetworkMap = firstValue.verifiedNetworkMapCert(rootCaCert)
-            assertEquals(networkParameters.serialize().hash, capturedNetworkMap.networkParameterHash)
+            assertEquals(latestNetworkParameters.serialize().hash, capturedNetworkMap.networkParameterHash)
             assertEquals(signedNodeInfoHashes.size, capturedNetworkMap.nodeInfoHashes.size)
             assertThat(capturedNetworkMap.nodeInfoHashes).containsAll(signedNodeInfoHashes)
         }
@@ -79,7 +87,8 @@ class NetworkMapSignerTest : TestBase() {
         val signedNetworkMap = networkMap.signWithCert(networkMapCa.keyPair.private, networkMapCa.certificate)
         whenever(networkMapStorage.getCurrentNetworkMap()).thenReturn(signedNetworkMap)
         whenever(networkMapStorage.getNodeInfoHashes(any())).thenReturn(emptyList())
-        whenever(networkMapStorage.getLatestNetworkParameters()).thenReturn(networkParameters)
+        whenever(networkMapStorage.getLatestUnsignedNetworkParameters()).thenReturn(networkParameters)
+        whenever(networkMapStorage.getCurrentSignedNetworkParameters()).thenReturn(networkParameters.signWithCert(networkMapCa.keyPair.private, networkMapCa.certificate))
 
         // when
         networkMapSigner.signNetworkMap()
@@ -95,17 +104,21 @@ class NetworkMapSignerTest : TestBase() {
         val networkParameters = testNetworkParameters(emptyList())
         whenever(networkMapStorage.getCurrentNetworkMap()).thenReturn(null)
         whenever(networkMapStorage.getNodeInfoHashes(any())).thenReturn(emptyList())
-        whenever(networkMapStorage.getLatestNetworkParameters()).thenReturn(networkParameters)
+        whenever(networkMapStorage.getLatestUnsignedNetworkParameters()).thenReturn(networkParameters)
         whenever(signer.signBytes(any())).then {
             DigitalSignatureWithCert(networkMapCa.certificate, Crypto.doSign(networkMapCa.keyPair.private, it.arguments[0] as ByteArray))
         }
+        whenever(signer.signObject(networkParameters)).then {
+            val serialised = networkParameters.serialize()
+            SignedDataWithCert(serialised, signer.signBytes(serialised.bytes))
+        }
         // when
         networkMapSigner.signNetworkMap()
 
         // then
         // Verify networkMapStorage calls
         verify(networkMapStorage).getNodeInfoHashes(any())
-        verify(networkMapStorage).getLatestNetworkParameters()
+        verify(networkMapStorage).getLatestUnsignedNetworkParameters()
         argumentCaptor<SignedNetworkMap>().apply {
             verify(networkMapStorage).saveNetworkMap(capture())
             val networkMap = firstValue.verifiedNetworkMapCert(rootCaCert)
diff --git a/network-management/src/test/kotlin/com/r3/corda/networkmanage/doorman/NodeInfoWebServiceTest.kt b/network-management/src/test/kotlin/com/r3/corda/networkmanage/doorman/NodeInfoWebServiceTest.kt
index f615d8d7ff..037daf4892 100644
--- a/network-management/src/test/kotlin/com/r3/corda/networkmanage/doorman/NodeInfoWebServiceTest.kt
+++ b/network-management/src/test/kotlin/com/r3/corda/networkmanage/doorman/NodeInfoWebServiceTest.kt
@@ -56,7 +56,7 @@ class NodeInfoWebServiceTest {
     @Test
     fun `submit nodeInfo`() {
         val networkMapStorage: NetworkMapStorage = mock {
-            on { getCurrentNetworkParameters() }.thenReturn(testNetworkParameters(emptyList()))
+            on { getCurrentSignedNetworkParameters() }.thenReturn(testNetworkParameters(emptyList()).signWithCert(networkMapCa.keyPair.private, networkMapCa.certificate))
         }
         // Create node info.
         val (_, signedNodeInfo) = createNodeInfoAndSigned(CordaX500Name("Test", "London", "GB"))
@@ -72,7 +72,7 @@ class NodeInfoWebServiceTest {
     @Test
     fun `submit old nodeInfo`() {
         val networkMapStorage: NetworkMapStorage = mock {
-            on { getCurrentNetworkParameters() }.thenReturn(testNetworkParameters(emptyList(), minimumPlatformVersion = 2))
+            on { getCurrentSignedNetworkParameters() }.thenReturn(testNetworkParameters(emptyList(), minimumPlatformVersion = 2).signWithCert(networkMapCa.keyPair.private, networkMapCa.certificate))
         }
         // Create node info.
         val (_, signedNodeInfo) = createNodeInfoAndSigned(CordaX500Name("Test", "London", "GB"), platformVersion = 1)
@@ -88,7 +88,7 @@ class NodeInfoWebServiceTest {
     @Test
     fun `submit nodeInfo when no network parameters`() {
         val networkMapStorage: NetworkMapStorage = mock {
-            on { getCurrentNetworkParameters() }.thenReturn(null)
+            on { getCurrentSignedNetworkParameters() }.thenReturn(null)
         }
         // Create node info.
         val (_, signedNodeInfo) = createNodeInfoAndSigned(CordaX500Name("Test", "London", "GB"), platformVersion = 1)
@@ -155,7 +155,6 @@ class NodeInfoWebServiceTest {
             verify(networkMapStorage, times(1)).getSignedNetworkParameters(networkParametersHash)
             assertThat(netParamsResponse.verified()).isEqualTo(networkParameters)
             assertThat(netParamsResponse.sig.by).isEqualTo(networkMapCa.certificate)
-
             assertThatExceptionOfType(IOException::class.java)
                     .isThrownBy { it.doGet<SignedNetworkParameters>("network-parameters/${randomSHA256()}") }
                     .withMessageContaining("404")
diff --git a/network-management/src/test/kotlin/com/r3/corda/networkmanage/doorman/RegistrationWebServiceTest.kt b/network-management/src/test/kotlin/com/r3/corda/networkmanage/doorman/RegistrationWebServiceTest.kt
index 39a6d58630..dc1b0d1949 100644
--- a/network-management/src/test/kotlin/com/r3/corda/networkmanage/doorman/RegistrationWebServiceTest.kt
+++ b/network-management/src/test/kotlin/com/r3/corda/networkmanage/doorman/RegistrationWebServiceTest.kt
@@ -41,9 +41,9 @@ import javax.ws.rs.core.MediaType
 import kotlin.test.assertEquals
 
 class RegistrationWebServiceTest : TestBase() {
+    private lateinit var webServer: NetworkManagementWebServer
     private lateinit var rootCaCert: X509Certificate
     private lateinit var intermediateCa: CertificateAndKeyPair
-    private lateinit var webServer: NetworkManagementWebServer
 
     @Before
     fun init() {