MAXREFDES143#: DeepCover Embedded Security in IoT Authenticated Sensing & Notification
Dependencies: MaximInterface mbed
The MAXREFDES143# is an Internet of Things (IoT) embedded security reference design, built to protect an industrial sensing node by means of authentication and notification to a web server. The hardware includes a peripheral module representing a protected sensor node monitoring operating temperature and remaining life of a filter (simulated through ambient light sensing) and an mbed shield representing a controller node responsible for monitoring one or more sensor nodes. The design is hierarchical with each controller node communicating data from connected sensor nodes to a web server that maintains a centralized log and dispatches notifications as necessary. The mbed shield contains a Wi-Fi module, a DS2465 coprocessor with 1-Wire® master function, an LCD, LEDs, and pushbuttons. The protected sensor node contains a DS28E15 authenticator, a DS7505 temperature sensor, and a MAX44009 light sensor. The mbed shield communicates to a web server by the onboard Wi-Fi module and to the protected sensor node with I2C and 1-Wire. The MAXREFDES143# is equipped with a standard shield connector for immediate testing using an mbed board such as the MAX32600MBED#. The simplicity of this design enables rapid integration into any star-topology IoT network requiring the heightened security with low overhead provided by the SHA-256 symmetric-key algorithm.
More information about the MAXREFDES143# is available on the Maxim Integrated website.
Diff: esp8266-driver/ESP8266Interface.h
- Revision:
- 29:590a7561318b
- Parent:
- 28:e5cdaf13d299
- Child:
- 30:0784010d6975
--- a/esp8266-driver/ESP8266Interface.h Thu Jan 26 14:18:21 2017 -0600
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,275 +0,0 @@
-/* ESP8266 implementation of NetworkInterfaceAPI
- * Copyright (c) 2015 ARM Limited
- *
- * 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.
- */
-
-#ifndef ESP8266_INTERFACE_H
-#define ESP8266_INTERFACE_H
-
-#include "mbed.h"
-#include "ESP8266.h"
-
-
-#define ESP8266_SOCKET_COUNT 5
-
-/** ESP8266Interface class
- * Implementation of the NetworkStack for the ESP8266
- */
-class ESP8266Interface : public NetworkStack, public WiFiInterface
-{
-public:
- /** ESP8266Interface lifetime
- * @param tx TX pin
- * @param rx RX pin
- * @param debug Enable debugging
- */
- ESP8266Interface(PinName tx, PinName rx, bool debug = false);
-
- /** Start the interface
- *
- * Attempts to connect to a WiFi network. Requires ssid and passphrase to be set.
- * If passphrase is invalid, NSAPI_ERROR_AUTH_ERROR is returned.
- *
- * @return 0 on success, negative error code on failure
- */
- virtual int connect();
-
- /** Start the interface
- *
- * Attempts to connect to a WiFi network.
- *
- * @param ssid Name of the network to connect to
- * @param pass Security passphrase to connect to the network
- * @param security Type of encryption for connection (Default: NSAPI_SECURITY_NONE)
- * @param channel This parameter is not supported, setting it to anything else than 0 will result in NSAPI_ERROR_UNSUPPORTED
- * @return 0 on success, or error code on failure
- */
- virtual int connect(const char *ssid, const char *pass, nsapi_security_t security = NSAPI_SECURITY_NONE,
- uint8_t channel = 0);
-
- /** Set the WiFi network credentials
- *
- * @param ssid Name of the network to connect to
- * @param pass Security passphrase to connect to the network
- * @param security Type of encryption for connection
- * (defaults to NSAPI_SECURITY_NONE)
- * @return 0 on success, or error code on failure
- */
- virtual int set_credentials(const char *ssid, const char *pass, nsapi_security_t security = NSAPI_SECURITY_NONE);
-
- /** Set the WiFi network channel - NOT SUPPORTED
- *
- * This function is not supported and will return NSAPI_ERROR_UNSUPPORTED
- *
- * @param channel Channel on which the connection is to be made, or 0 for any (Default: 0)
- * @return Not supported, returns NSAPI_ERROR_UNSUPPORTED
- */
- virtual int set_channel(uint8_t channel);
-
- /** Stop the interface
- * @return 0 on success, negative on failure
- */
- virtual int disconnect();
-
- /** Get the internally stored IP address
- * @return IP address of the interface or null if not yet connected
- */
- virtual const char *get_ip_address();
-
- /** Get the internally stored MAC address
- * @return MAC address of the interface
- */
- virtual const char *get_mac_address();
-
- /** Get the local gateway
- *
- * @return Null-terminated representation of the local gateway
- * or null if no network mask has been recieved
- */
- virtual const char *get_gateway();
-
- /** Get the local network mask
- *
- * @return Null-terminated representation of the local network mask
- * or null if no network mask has been recieved
- */
- virtual const char *get_netmask();
-
- /** Gets the current radio signal strength for active connection
- *
- * @return Connection strength in dBm (negative value)
- */
- virtual int8_t get_rssi();
-
- /** Scan for available networks
- *
- * This function will block.
- *
- * @param ap Pointer to allocated array to store discovered AP
- * @param count Size of allocated @a res array, or 0 to only count available AP
- * @param timeout Timeout in milliseconds; 0 for no timeout (Default: 0)
- * @return Number of entries in @a, or if @a count was 0 number of available networks, negative on error
- * see @a nsapi_error
- */
- virtual int scan(WiFiAccessPoint *res, unsigned count);
-
- /** Translates a hostname to an IP address with specific version
- *
- * The hostname may be either a domain name or an IP address. If the
- * hostname is an IP address, no network transactions will be performed.
- *
- * If no stack-specific DNS resolution is provided, the hostname
- * will be resolve using a UDP socket on the stack.
- *
- * @param address Destination for the host SocketAddress
- * @param host Hostname to resolve
- * @param version IP version of address to resolve, NSAPI_UNSPEC indicates
- * version is chosen by the stack (defaults to NSAPI_UNSPEC)
- * @return 0 on success, negative error code on failure
- */
- using NetworkInterface::gethostbyname;
-
- /** Add a domain name server to list of servers to query
- *
- * @param addr Destination for the host address
- * @return 0 on success, negative error code on failure
- */
- using NetworkInterface::add_dns_server;
-
-protected:
- /** Open a socket
- * @param handle Handle in which to store new socket
- * @param proto Type of socket to open, NSAPI_TCP or NSAPI_UDP
- * @return 0 on success, negative on failure
- */
- virtual int socket_open(void **handle, nsapi_protocol_t proto);
-
- /** Close the socket
- * @param handle Socket handle
- * @return 0 on success, negative on failure
- * @note On failure, any memory associated with the socket must still
- * be cleaned up
- */
- virtual int socket_close(void *handle);
-
- /** Bind a server socket to a specific port
- * @param handle Socket handle
- * @param address Local address to listen for incoming connections on
- * @return 0 on success, negative on failure.
- */
- virtual int socket_bind(void *handle, const SocketAddress &address);
-
- /** Start listening for incoming connections
- * @param handle Socket handle
- * @param backlog Number of pending connections that can be queued up at any
- * one time [Default: 1]
- * @return 0 on success, negative on failure
- */
- virtual int socket_listen(void *handle, int backlog);
-
- /** Connects this TCP socket to the server
- * @param handle Socket handle
- * @param address SocketAddress to connect to
- * @return 0 on success, negative on failure
- */
- virtual int socket_connect(void *handle, const SocketAddress &address);
-
- /** Accept a new connection.
- * @param handle Handle in which to store new socket
- * @param server Socket handle to server to accept from
- * @return 0 on success, negative on failure
- * @note This call is not-blocking, if this call would block, must
- * immediately return NSAPI_ERROR_WOULD_WAIT
- */
- virtual int socket_accept(void *handle, void **socket, SocketAddress *address);
-
- /** Send data to the remote host
- * @param handle Socket handle
- * @param data The buffer to send to the host
- * @param size The length of the buffer to send
- * @return Number of written bytes on success, negative on failure
- * @note This call is not-blocking, if this call would block, must
- * immediately return NSAPI_ERROR_WOULD_WAIT
- */
- virtual int socket_send(void *handle, const void *data, unsigned size);
-
- /** Receive data from the remote host
- * @param handle Socket handle
- * @param data The buffer in which to store the data received from the host
- * @param size The maximum length of the buffer
- * @return Number of received bytes on success, negative on failure
- * @note This call is not-blocking, if this call would block, must
- * immediately return NSAPI_ERROR_WOULD_WAIT
- */
- virtual int socket_recv(void *handle, void *data, unsigned size);
-
- /** Send a packet to a remote endpoint
- * @param handle Socket handle
- * @param address The remote SocketAddress
- * @param data The packet to be sent
- * @param size The length of the packet to be sent
- * @return The number of written bytes on success, negative on failure
- * @note This call is not-blocking, if this call would block, must
- * immediately return NSAPI_ERROR_WOULD_WAIT
- */
- virtual int socket_sendto(void *handle, const SocketAddress &address, const void *data, unsigned size);
-
- /** Receive a packet from a remote endpoint
- * @param handle Socket handle
- * @param address Destination for the remote SocketAddress or null
- * @param buffer The buffer for storing the incoming packet data
- * If a packet is too long to fit in the supplied buffer,
- * excess bytes are discarded
- * @param size The length of the buffer
- * @return The number of received bytes on success, negative on failure
- * @note This call is not-blocking, if this call would block, must
- * immediately return NSAPI_ERROR_WOULD_WAIT
- */
- virtual int socket_recvfrom(void *handle, SocketAddress *address, void *buffer, unsigned size);
-
- /** Register a callback on state change of the socket
- * @param handle Socket handle
- * @param callback Function to call on state change
- * @param data Argument to pass to callback
- * @note Callback may be called in an interrupt context.
- */
- virtual void socket_attach(void *handle, void (*callback)(void *), void *data);
-
- /** Provide access to the NetworkStack object
- *
- * @return The underlying NetworkStack object
- */
- virtual NetworkStack *get_stack()
- {
- return this;
- }
-
-private:
- ESP8266 _esp;
- bool _ids[ESP8266_SOCKET_COUNT];
-
- char ap_ssid[33]; /* 32 is what 802.11 defines as longest possible name; +1 for the \0 */
- nsapi_security_t ap_sec;
- uint8_t ap_ch;
- char ap_pass[64]; /* The longest allowed passphrase */
-
- void event();
-
- struct {
- void (*callback)(void *);
- void *data;
- } _cbs[ESP8266_SOCKET_COUNT];
-};
-
-#endif
MAXREFDES143#: DeepCover Embedded Security in IoT Authenticated Sensing & Notification