diff --git a/core/api/src/main/java/org/onosproject/net/key/CommunityName.java b/core/api/src/main/java/org/onosproject/net/key/CommunityName.java
new file mode 100644
index 0000000..3c3e29e
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/key/CommunityName.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.net.key;
+
+/**
+ * Representation of an SNMP community name authentication token.
+ */
+public final class CommunityName extends DeviceKey {
+    private final String name;
+
+    /**
+     * Private constructor for a community name.
+     *
+     * @param name community name
+     */
+    private CommunityName(String name) {
+        this.name = name;
+    }
+
+    /**
+     * Static method to construct a community name.
+     *
+     * @param name community name
+     * @return community name
+     */
+    static CommunityName communityName(String name) {
+        return new CommunityName(name);
+    }
+
+    /**
+     * Returns the community name.
+     *
+     * @return name
+     */
+    public String name() {
+        return name;
+    }
+}
diff --git a/core/api/src/main/java/org/onosproject/net/key/DeviceKey.java b/core/api/src/main/java/org/onosproject/net/key/DeviceKey.java
new file mode 100644
index 0000000..3f4a9fd
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/key/DeviceKey.java
@@ -0,0 +1,160 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.net.key;
+
+import com.google.common.annotations.Beta;
+import org.onosproject.net.AbstractAnnotated;
+import org.onosproject.net.AnnotationKeys;
+import org.onosproject.net.Annotations;
+import org.onosproject.net.DefaultAnnotations;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.base.Preconditions.checkState;
+import static org.onosproject.net.DefaultAnnotations.builder;
+
+/**
+ * Abstraction of a device key.
+ */
+@Beta
+public class DeviceKey extends AbstractAnnotated {
+
+    // device key identifier
+    private final DeviceKeyId deviceKeyId;
+    // label of the device key
+    private String label;
+
+    /**
+     * type of the device key.
+     */
+    public enum Type {
+        COMMUNITY_NAME, USERNAME_PASSWORD, SSL_KEY
+    }
+
+    private Type type;
+
+    /**
+     * Constructor for serialization.
+     */
+    DeviceKey() {
+        this.deviceKeyId = null;
+        this.label = null;
+        this.type = null;
+    }
+
+    /**
+     * Private constructor for a device key.
+     *
+     * @param id          device key identifier
+     * @param label       optional label for this device key
+     * @param type        to be assigned to this device key
+     * @param annotations name/value pairs for this device key
+     */
+    private DeviceKey(DeviceKeyId id, String label, Type type, Annotations... annotations) {
+        super(annotations);
+        checkNotNull(id, "The DeviceKeyId cannot be null.");
+        this.deviceKeyId = id;
+        this.label = label;
+        this.type = type;
+    }
+
+    /**
+     * Returns the device key identifier of the device key.
+     *
+     * @return device key identifier
+     */
+    public DeviceKeyId deviceKeyId() {
+        return deviceKeyId;
+    }
+
+    /**
+     * Returns the label of device key.
+     *
+     * @return label
+     */
+    public String label() {
+        return label;
+    }
+
+    /**
+     * Returns the type of the device key.
+     *
+     * @return type
+     */
+    public Type type() {
+        return type;
+    }
+
+    /**
+     * Method to create a device key of type CommunityName.
+     *
+     * @param id    device key identifier
+     * @param label optional label for this device key
+     * @param name  community name for this device key
+     * @return device key
+     */
+    public static DeviceKey createDeviceKeyUsingCommunityName(DeviceKeyId id, String label, String name) {
+        DefaultAnnotations annotations = builder().set(AnnotationKeys.NAME, name).build();
+
+        return new DeviceKey(id, label, Type.COMMUNITY_NAME, annotations);
+    }
+
+    /**
+     * Returns a community name object from the device key.
+     *
+     * @return community name
+     */
+    public CommunityName asCommunityName() {
+
+        // Validate that the device key is of type COMMUNITY_NAME.
+        checkState(this.type == Type.COMMUNITY_NAME, "This device key is not a COMMUNITY_NAME type.");
+
+        String name = annotations().value(AnnotationKeys.NAME);
+        return CommunityName.communityName(name);
+    }
+
+    /**
+     * Method to create a device key of type USERNAME_PASSWORD.
+     *
+     * @param id    device key identifier
+     * @param label optional label for this device key
+     * @param username username for this device key
+     * @param password password for this device key
+     * @return device key
+     */
+    public static DeviceKey createDeviceKeyUsingUsernamePassword(DeviceKeyId id, String label,
+                                                                 String username, String password) {
+        DefaultAnnotations annotations = builder().set(AnnotationKeys.USERNAME, username)
+                .set(AnnotationKeys.PASSWORD, password).build();
+
+        return new DeviceKey(id, label, Type.USERNAME_PASSWORD, annotations);
+    }
+
+    /**
+     * Returns a username and password object from the device key.
+     *
+     * @return username and password
+     */
+    public UsernamePassword asUsernamePassword() {
+
+        // Validate that the device key is of type USERNAME_PASSWORD.
+        checkState(this.type == Type.USERNAME_PASSWORD, "This device key is not a USERNAME_PASSWORD type.");
+
+        String username = annotations().value(AnnotationKeys.USERNAME);
+        String password = annotations().value(AnnotationKeys.PASSWORD);
+        return UsernamePassword.usernamePassword(username, password);
+    }
+}
diff --git a/core/api/src/main/java/org/onosproject/net/key/DeviceKeyAdminService.java b/core/api/src/main/java/org/onosproject/net/key/DeviceKeyAdminService.java
new file mode 100644
index 0000000..9e4f168
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/key/DeviceKeyAdminService.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.net.key;
+
+import com.google.common.annotations.Beta;
+
+/**
+ * Service for managing device keys.
+ */
+@Beta
+public interface DeviceKeyAdminService extends DeviceKeyService {
+
+    /**
+     * Adds a new device key to the store.
+     *
+     * @param deviceKey device key to be stored
+     */
+    void addKey(DeviceKey deviceKey);
+
+    /**
+     * Removes a device key from the store using the device
+     * key identifier.
+     *
+     * @param id device key identifier used to identify the device key
+     */
+    void removeKey(DeviceKeyId id);
+}
+
diff --git a/core/api/src/main/java/org/onosproject/net/key/DeviceKeyEvent.java b/core/api/src/main/java/org/onosproject/net/key/DeviceKeyEvent.java
new file mode 100644
index 0000000..2cd1d57
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/key/DeviceKeyEvent.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.net.key;
+
+import com.google.common.annotations.Beta;
+import org.onosproject.event.AbstractEvent;
+
+/**
+ * Describes device key events.
+ */
+@Beta
+public class DeviceKeyEvent extends AbstractEvent<DeviceKeyEvent.Type, DeviceKey> {
+
+    /**
+     * Type of device key events.
+     */
+    public enum Type {
+        /**
+         * Signals that a new device key has been added.
+         */
+        DEVICE_KEY_ADDED,
+
+        /**
+         * Signals that a device key has been updated or changed state.
+         */
+        DEVICE_KEY_UPDATED,
+
+        /**
+         * Signals that a device key has been removed.
+         */
+        DEVICE_KEY_REMOVED
+    }
+
+    /**
+     * Creates an event of a given type, and for the specified device key.
+     *
+     * @param type      device key event type
+     * @param deviceKey event device key subject
+     */
+    public DeviceKeyEvent(Type type, DeviceKey deviceKey) {
+        super(type, deviceKey);
+    }
+
+    /**
+     * Creates an event of a given type, for the specified device key, and
+     * the current time.
+     *
+     * @param type      device key event type
+     * @param deviceKey event device key subject
+     * @param time      occurrence time
+     */
+    public DeviceKeyEvent(Type type, DeviceKey deviceKey, long time) {
+        super(type, deviceKey, time);
+    }
+}
diff --git a/core/api/src/main/java/org/onosproject/net/key/DeviceKeyId.java b/core/api/src/main/java/org/onosproject/net/key/DeviceKeyId.java
new file mode 100644
index 0000000..12c1d95
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/key/DeviceKeyId.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.net.key;
+
+import java.util.Objects;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Device key Id definition.
+ */
+public final class DeviceKeyId {
+    private final String identifier;
+
+    /**
+     * Constructor for serialization.
+     */
+    private DeviceKeyId() {
+        this.identifier = null;
+    }
+
+    /**
+     * Constructs the ID corresponding to a given string value.
+     *
+     * @param value the underlying value of this ID
+     */
+    private DeviceKeyId(String value) {
+        this.identifier = checkNotNull(value, "Device Key Id cannot be null.");
+    }
+
+    /**
+     * Static  method to construct a device key identifier.
+     *
+     * @param id for the device key identifier
+     * @return device key identifier
+     */
+    public static final DeviceKeyId deviceKeyId(String id) {
+        return new DeviceKeyId(id);
+    }
+
+    /**
+     * Returns the identifier of the device key identifier.
+     *
+     * @return identifier
+     */
+    public String id() {
+        return identifier;
+    }
+
+    /**
+     * Returns the hashcode of the identifier.
+     *
+     * @return hashcode
+     */
+    @Override
+    public int hashCode() {
+        return identifier.hashCode();
+    }
+
+    /**
+     * Compares two device key identifiers for equality.
+     *
+     * @param obj to compare against
+     * @return true if the objects are equal, false otherwise.
+     */
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof DeviceKeyId) {
+            final DeviceKeyId that = (DeviceKeyId) obj;
+            return this.getClass() == that.getClass() &&
+                    Objects.equals(this.identifier, that.identifier);
+        }
+        return false;
+    }
+
+    /**
+     * Returns a string representation of a DeviceKeyId.
+     *
+     * @return string
+     */
+    public String toString() {
+        return identifier;
+    }
+}
diff --git a/core/api/src/main/java/org/onosproject/net/key/DeviceKeyListener.java b/core/api/src/main/java/org/onosproject/net/key/DeviceKeyListener.java
new file mode 100644
index 0000000..f7f8080
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/key/DeviceKeyListener.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.net.key;
+
+import com.google.common.annotations.Beta;
+import org.onosproject.event.EventListener;
+
+/**
+ * Listener for device key related events.
+ */
+@Beta
+public interface DeviceKeyListener extends EventListener<DeviceKeyEvent> {
+}
diff --git a/core/api/src/main/java/org/onosproject/net/key/DeviceKeyService.java b/core/api/src/main/java/org/onosproject/net/key/DeviceKeyService.java
new file mode 100644
index 0000000..b87530f
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/key/DeviceKeyService.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.net.key;
+
+import com.google.common.annotations.Beta;
+import org.onosproject.event.ListenerService;
+
+import java.util.Collection;
+
+/**
+ * Service for querying device keys.
+ */
+@Beta
+public interface DeviceKeyService extends ListenerService<DeviceKeyEvent, DeviceKeyListener> {
+
+    /**
+     * Returns all device keys.
+     *
+     * @return Collection of device keys
+     */
+    Collection<DeviceKey> getDeviceKeys();
+
+    /**
+     * Returns the device key using a device key identifier.
+     *
+     * @param deviceKeyId device key identifier
+     * @return device key
+     */
+    DeviceKey getDeviceKey(DeviceKeyId deviceKeyId);
+}
+
diff --git a/core/api/src/main/java/org/onosproject/net/key/DeviceKeyStore.java b/core/api/src/main/java/org/onosproject/net/key/DeviceKeyStore.java
new file mode 100644
index 0000000..c9b1194
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/key/DeviceKeyStore.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.net.key;
+
+import com.google.common.annotations.Beta;
+import org.onosproject.store.Store;
+
+import java.util.Collection;
+
+/**
+ * Manages inventory of device keys; not intended for direct use.
+ */
+@Beta
+public interface DeviceKeyStore extends Store<DeviceKeyEvent, DeviceKeyStoreDelegate> {
+    /**
+     * Creates or updates a device key.
+     *
+     * @param deviceKey device key
+     */
+    void createOrUpdateDeviceKey(DeviceKey deviceKey);
+
+    /**
+     * Deletes a device key by a specific device key identifier.
+     *
+     * @param deviceKeyId device key unique identifier
+     */
+    void deleteDeviceKey(DeviceKeyId deviceKeyId);
+
+    /**
+     * Returns all device keys.
+     *
+     * @return set of device keys
+     */
+    Collection<DeviceKey> getDeviceKeys();
+
+    /**
+     * Returns the device key matching a device key identifier.
+     *
+     * @param deviceKeyId device key unique identifier
+     * @return device key
+     */
+    DeviceKey getDeviceKey(DeviceKeyId deviceKeyId);
+}
diff --git a/core/api/src/main/java/org/onosproject/net/key/DeviceKeyStoreDelegate.java b/core/api/src/main/java/org/onosproject/net/key/DeviceKeyStoreDelegate.java
new file mode 100644
index 0000000..e78912b
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/key/DeviceKeyStoreDelegate.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.net.key;
+
+import com.google.common.annotations.Beta;
+import org.onosproject.store.StoreDelegate;
+
+/**
+ * Device key store delegate abstraction.
+ */
+@Beta
+public interface DeviceKeyStoreDelegate extends StoreDelegate<DeviceKeyEvent> {
+}
diff --git a/core/api/src/main/java/org/onosproject/net/key/UsernamePassword.java b/core/api/src/main/java/org/onosproject/net/key/UsernamePassword.java
new file mode 100644
index 0000000..d496fc35
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/key/UsernamePassword.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.net.key;
+
+/**
+ * Representation of a username and password.
+ */
+public final class UsernamePassword extends DeviceKey {
+    private final String username;
+    private final String password;
+
+    /**
+     * Private constructor for a username and password.
+     *
+     * @param username user's name
+     * @param password user's password
+     */
+    private UsernamePassword(String username, String password) {
+        this.username = username;
+        this.password = password;
+    }
+
+    /**
+     * Static method to construct a username / password.
+     *
+     * @param username user's name
+     * @param password user's password
+     * @return username and password
+     */
+    static UsernamePassword usernamePassword(String username, String password) {
+        return new UsernamePassword(username, password);
+    }
+
+    /**
+     * Returns the username.
+     *
+     * @return username
+     */
+    public String username() {
+        return username;
+    }
+
+    /**
+     * Returns the password.
+     *
+     * @return password
+     */
+    public String password() {
+        return password;
+    }
+}
diff --git a/core/api/src/main/java/org/onosproject/net/key/package-info.java b/core/api/src/main/java/org/onosproject/net/key/package-info.java
new file mode 100644
index 0000000..0e88963
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/key/package-info.java
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+/**
+ * Device key data model and services.
+ * This subsystem and its interfaces will change in the upcoming release.
+ */
+package org.onosproject.net.key;
\ No newline at end of file
diff --git a/core/api/src/test/java/org/onosproject/net/key/CommunityNameTest.java b/core/api/src/test/java/org/onosproject/net/key/CommunityNameTest.java
new file mode 100644
index 0000000..5e2d4a9
--- /dev/null
+++ b/core/api/src/test/java/org/onosproject/net/key/CommunityNameTest.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.net.key;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+import static org.onlab.junit.ImmutableClassChecker.assertThatClassIsImmutable;
+
+/**
+ * Test class for CommunityName.
+ */
+public class CommunityNameTest {
+
+    final String cName = "CommunityName";
+
+    /**
+     * Checks that the CommunityName class is immutable.
+     */
+    @Test
+    public void testImmutability() {
+        assertThatClassIsImmutable(CommunityName.class);
+    }
+
+    /**
+     * Checks the construction of a community name object with a null
+     * value passed into it.
+     */
+    @Test
+    public void testCommunityNameNull() {
+        CommunityName communityName = CommunityName.communityName(null);
+
+        assertNotNull("The CommunityName should not be null.", communityName);
+        assertNull("The name should be null.", communityName.name());
+    }
+
+    /**
+     * Checks the construction of a community name object with a non-null
+     * value passed into it.
+     */
+    @Test
+    public void testCommunityName() {
+        CommunityName communityName = CommunityName.communityName(cName);
+
+        assertNotNull("The CommunityName should not be null.", communityName);
+        assertEquals("The name should match the expected value.", cName, communityName.name());
+    }
+}
diff --git a/core/api/src/test/java/org/onosproject/net/key/DeviceKeyIdTest.java b/core/api/src/test/java/org/onosproject/net/key/DeviceKeyIdTest.java
new file mode 100644
index 0000000..6744460
--- /dev/null
+++ b/core/api/src/test/java/org/onosproject/net/key/DeviceKeyIdTest.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.net.key;
+
+import com.google.common.testing.EqualsTester;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.onlab.junit.ImmutableClassChecker.assertThatClassIsImmutable;
+
+/**
+ * Test class for DeviceDeyId.
+ */
+public class DeviceKeyIdTest {
+
+    final String deviceKeyIdValue1 = "DeviceKeyId1";
+    final String deviceKeyIdValue2 = "DeviceKeyId2";
+
+    /**
+     * Checks that the DeviceKeyId class is immutable.
+     */
+    @Test
+    public void testImmutability() {
+        assertThatClassIsImmutable(DeviceKeyId.class);
+    }
+
+    /**
+     * Checks the construction of a DeviceKeyId object throws an
+     * IllegalArgumentException when the input identifier is null.
+     */
+    @Test(expected = NullPointerException.class)
+    public void testConstructionUsingNullId() {
+        DeviceKeyId.deviceKeyId(null);
+    }
+
+    /**
+     * Checks the construction of a DeviceKeyId object.
+     */
+    @Test
+    public void testConstruction() {
+        DeviceKeyId deviceKeyId = DeviceKeyId.deviceKeyId(deviceKeyIdValue1);
+        assertNotNull("The deviceKeyId should not be null.", deviceKeyId);
+        assertEquals("The id should match the expected value.",
+                     deviceKeyIdValue1, deviceKeyId.id());
+    }
+
+    /**
+     * Tests the equality of device key identifiers.
+     */
+    @Test
+    public void testEquality() {
+        DeviceKeyId deviceKeyId1 = DeviceKeyId.deviceKeyId(deviceKeyIdValue1);
+        DeviceKeyId deviceKeyId2 = DeviceKeyId.deviceKeyId(deviceKeyIdValue1);
+        DeviceKeyId deviceKeyId3 = DeviceKeyId.deviceKeyId(deviceKeyIdValue2);
+
+        new EqualsTester().addEqualityGroup(deviceKeyId1, deviceKeyId2)
+                .addEqualityGroup(deviceKeyId3)
+                .testEquals();
+    }
+}
diff --git a/core/api/src/test/java/org/onosproject/net/key/DeviceKeyTest.java b/core/api/src/test/java/org/onosproject/net/key/DeviceKeyTest.java
new file mode 100644
index 0000000..344a425
--- /dev/null
+++ b/core/api/src/test/java/org/onosproject/net/key/DeviceKeyTest.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.net.key;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+/**
+ * Test class for DeviceKey.
+ */
+public class DeviceKeyTest {
+
+    final String deviceKeyIdValue = "DeviceKeyId1";
+    final String deviceKeyLabel = "DeviceKeyLabel";
+    final String deviceKeySnmpName = "DeviceKeySnmpName";
+    final String deviceKeyUsername = "DeviceKeyUsername";
+    final String deviceKeyPassword = "DeviceKeyPassword";
+
+    /**
+     * Checks the construction of a community name device key with a null
+     * value passed into it. This will throw a NullPointerException.
+     */
+    @Test(expected = NullPointerException.class)
+    public void testCreateDeviceKeyUsingCommunityNameWithNull() {
+        DeviceKey deviceKey = DeviceKey.createDeviceKeyUsingCommunityName(null, null, null);
+    }
+
+    /**
+     * Checks the construction of a community name device key name with non-null
+     * values passed into it.
+     */
+    @Test
+    public void testCreateDeviceKeyUsingCommunityName() {
+        DeviceKeyId deviceKeyId = DeviceKeyId.deviceKeyId(deviceKeyIdValue);
+
+        DeviceKey deviceKey = DeviceKey.createDeviceKeyUsingCommunityName(deviceKeyId,
+                                                                          deviceKeyLabel, deviceKeySnmpName);
+        assertNotNull("The deviceKey should not be null.", deviceKey);
+        assertEquals("The deviceKeyId should match as expected", deviceKeyId, deviceKey.deviceKeyId());
+        assertEquals("The label should match as expected", deviceKeyLabel, deviceKey.label());
+        assertEquals("The type should match as expected", DeviceKey.Type.COMMUNITY_NAME, deviceKey.type());
+
+        CommunityName communityName = deviceKey.asCommunityName();
+        assertNotNull("The communityName should not be null.", communityName);
+        assertEquals("The name should match as expected", deviceKeySnmpName, communityName.name());
+    }
+
+    /**
+     * Checks the invalid conversion a device key of type COMMUNITY_NAME to
+     * a username / password object.
+     */
+    @Test(expected = IllegalStateException.class)
+    public void testInvalidConversionToAsUsernamePassword() {
+        DeviceKeyId deviceKeyId = DeviceKeyId.deviceKeyId(deviceKeyIdValue);
+
+        DeviceKey deviceKey = DeviceKey.createDeviceKeyUsingCommunityName(deviceKeyId,
+                                                                          deviceKeyLabel, deviceKeySnmpName);
+        // Attempting to convert this device key to a username / password object
+        // should throw and IllegalStateException.
+        UsernamePassword usernamePassword = deviceKey.asUsernamePassword();
+    }
+
+    /**
+     * Checks the construction of a username / password device key with a null
+     * value passed into it. This will throw a NullPointerException.
+     */
+    @Test(expected = NullPointerException.class)
+    public void testCreateDeviceKeyUsingUsernamePasswordWithNull() {
+        DeviceKey deviceKey = DeviceKey.createDeviceKeyUsingUsernamePassword(null, null, null, null);
+    }
+
+    /**
+     * Checks the construction of a username and password device key name with non-null
+     * values passed into it.
+     */
+    @Test
+    public void testCreateDeviceKeyUsingUsernamePassword() {
+        DeviceKeyId deviceKeyId = DeviceKeyId.deviceKeyId(deviceKeyIdValue);
+
+        DeviceKey deviceKey = DeviceKey.createDeviceKeyUsingUsernamePassword(deviceKeyId, deviceKeyLabel,
+                                                                             deviceKeyUsername, deviceKeyPassword);
+        assertNotNull("The deviceKey should not be null.", deviceKey);
+        assertEquals("The deviceKeyId should match as expected", deviceKeyId, deviceKey.deviceKeyId());
+        assertEquals("The label should match as expected", deviceKeyLabel, deviceKey.label());
+        assertEquals("The type should match as expected", DeviceKey.Type.USERNAME_PASSWORD, deviceKey.type());
+
+        UsernamePassword usernamePassword = deviceKey.asUsernamePassword();
+        assertNotNull("The usernamePassword should not be null.", usernamePassword);
+        assertEquals("The username should match as expected", deviceKeyUsername, usernamePassword.username());
+        assertEquals("The password should match as expected", deviceKeyPassword, usernamePassword.password());
+    }
+
+    /**
+     * Checks the invalid conversion a device key of type USERNAME_PASSWORD to
+     * a community name object.
+     */
+    @Test(expected = IllegalStateException.class)
+    public void testInvalidConversionToAsCommunityName() {
+        DeviceKeyId deviceKeyId = DeviceKeyId.deviceKeyId(deviceKeyIdValue);
+
+        DeviceKey deviceKey = DeviceKey.createDeviceKeyUsingUsernamePassword(deviceKeyId, deviceKeyLabel,
+                                                                             deviceKeyUsername, deviceKeyPassword);
+        // Attempting to convert this device key to a community name should throw and IllegalStateException.
+        CommunityName communityName = deviceKey.asCommunityName();
+    }
+}
diff --git a/core/api/src/test/java/org/onosproject/net/key/UsernamePasswordTest.java b/core/api/src/test/java/org/onosproject/net/key/UsernamePasswordTest.java
new file mode 100644
index 0000000..d8acafb
--- /dev/null
+++ b/core/api/src/test/java/org/onosproject/net/key/UsernamePasswordTest.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.net.key;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+import static org.onlab.junit.ImmutableClassChecker.assertThatClassIsImmutable;
+
+/**
+ * Test class for UsernamePassword.
+ */
+public class UsernamePasswordTest {
+    final String username = "username";
+    final String password = "password";
+
+    /**
+     * Checks that the UsernamePassword class is immutable.
+     */
+    @Test
+    public void testImmutability() {
+        assertThatClassIsImmutable(UsernamePassword.class);
+    }
+
+    /**
+     * Checks the construction of a username / password object with null
+     * values passed into it.
+     */
+    @Test
+    public void testUsernamePasswordNull() {
+        UsernamePassword usernamePassword = UsernamePassword.usernamePassword(null, null);
+
+        assertNotNull("The UsernamePassword should not be null.", usernamePassword);
+        assertNull("The username should be null.", usernamePassword.username());
+        assertNull("The password should be null.", usernamePassword.password());
+    }
+
+    /**
+     * Checks the construction of a username / password object with non-null
+     * values passed into it.
+     */
+    @Test
+    public void testUsernamePassword() {
+        UsernamePassword usernamePassword = UsernamePassword.usernamePassword(username, password);
+
+        assertNotNull("The usernamePassword should not be null.", usernamePassword);
+        assertEquals("The username should match the expected value.", username, usernamePassword.username());
+        assertEquals("The password should match the expected value.", password, usernamePassword.password());
+    }
+}