Secure Instant Messaging has following features:

• Secure IP Messaging with private\public keys
• RSA decryption/encryption
• Generate key pair and save keys as files

In cryptography, Triple DES (3DES or TDES) is a symmetric-key block cipher, which applies the DES cipher algorithm three times to each data block.

To use 3DES functionality first off all we need to include “System.Security.Cryptography”.

using System.Security.Cryptography;

Then we should create and adjust an object which will do encryption:

var tdese = TripleDES.Create();tdese.Mode = CipherMode.ECB;tdese.Padding = PaddingMode.PKCS7;tdese.Key = ConvertHexStringToByteArray("AABBCCDDEE11223344556677889900FF");var encryptor = tdese.CreateEncryptor();

“ConvertHexStringToByteArray” function to convert hex string to byte array:

public static byte[] ConvertHexStringToByteArray(string hexString) { if (hexString.Length % 2 != 0) { throw new ArgumentException(String.Format(CultureInfo.InvariantCulture, "The binary key cannot have an odd number…

A IoT device programmed with Arduino need connect to WiFi at start of device to use internet for data transfer etc. First of all we need to include header file “WiFiClient” to our sketch.

#include <WiFiClient.h>

With code below we will let user enter WiFi credentials over serial communication. we should add this code to our setup() part of our Arduino sketch.

Serial.write("Please enter name of your wifi network\n");while(Serial.available() == 0){};String Uid=Serial.readStringUntil('\n');Serial.write("Please enter password of your wifi network\n");while(Serial.available() == 0){};String pass= Serial.readStringUntil('\n');

If you want give user a tool to setup WiFi over serial you…

In this video i will give 4 simple examples of using LabVIEW.

Examples:

1. Display a simple sine wave
2. Algebraic loop example
3. Get value of array element
4. Build array with for loop

In this video i will give 4 simple examples of using Scilab Xcos for simulation.

Examples:

1. Display a simple sine wave
2. Algebraic loop example
3. Example for lookup table
4. Example for derivative of time dependent function (derivative of x²: 2x)

File Privacy has following features:
- File decryption/encryption (3DES)
- File compare for cryptography
- Create random key hex string and save as file
- Hex string based decryption/encryption

RoomLog measures ambient temperature and humdity.According to setted min and max values RoomLog sends email (if enabled) and activates 3.3V digital outputs. RoomLog also checks fire and smoke.If RoomLog detects fire or smoke, it sends email and activates 3.3V digital outputs.

• Monitor ambient temperature and humidity
• Check fire and smoke around
• 3.3V Alarm Output for Temp., Humidity, Fire and Smoke
• Sends Alarm Emails
• Linux OS
• Linux OS

• General purpose serial communication software.
• Useful to set up Vengito devices.

In telecommunication and data transmission, serial communication is the process of sending data one bit at a time, sequentially, over a communication channel or computer bus. This is in contrast to parallel communication, where several bits are sent as a whole, on a link with several parallel channels. https://en.wikipedia.org/w/index.php?title=Serial_communication&oldid=1009527330