![]() ![]() The following circuit uses 4 bit mode of 16×2 LCD Display to efficiently utilize the pins on the Freeduino. ![]() ![]() To obtain the AES cipher text DENcryptor makes use of one of the standard libraries in C available online at (also included as attachment with the mail) although this library is written keeping Texas Instruments MSP430 microcontroller in mind it works really well with the rest of the microcontrollers as well. 6: Block Diagram of Arduino based AES Encryption and AES Decryption Devicesīefore we start up with writing the codes to interface Arduino to GSM or an LCD we need to setup a basic encryption methodology. Using this to encrypt the SMS data creates a very high layer of safety and simplicity.Īs shown in figure it makes use of the customer database for using a cipher key and encrypts the credentials like balance statement or OTPs and send it via GSM Modemįig. The act of encryption remains hidden but is very essential to guard your privacy from preying eyes of hackers.ĪES is one of the most popular and widely accepted encryption scheme in the digital world. ![]() We unknowingly use the encryption in everyday life on internet while accessing mails, viewing bank credentials or even when chatting with someone on Facebook. 5: Image showing jumper wire connections with Character LCD EncryptionĮncryption is a technique of masking the information from unauthorised personal, there are plenty of methods of encrypting the information the science of which is called cryptography. USB Cable Type A to Type B, Jumper wiresįig. 4: Image of 16X2 Character LCD from back sideĥ. Adapter 5v – 2A (Compatible with GSM modem)įig. Arduino UNO / Freeduino / Teensy / MSP430 / compatible microcontroller boardģ. 1: Prototype of Arduino based DENcryptor Implementation for Secure Messagingġ. The word DENcryptor is a play on De-cryptor and En-cryptor.įig. In the following project of DENcryptor we present and implement a method to send your account credentials from your bank to you using AES and decrypt to get the secured details off of it. It is assumed that the reader has gone through the project how to get started with the Arduino and how to interface lcd with Arduino. At the point of convenience we forget that the SMS containing the OTP is been routed through the Service Providers exposing the confidential data to an unauthorised person (The third party at the service provider company).The same thing happens when certain amount is debited or credited to your account and the details of the last transaction with current balance information will be sent to you through SMS via GSM with arduino. Most of us today do our shopping online and we pay for all the merchandise and services using online or mobile banking, but to complete the transaction one requires OTP (One Time Password) from the bank providing online banking. ![]()
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