What is OTP?
The full name of OTP is ( One Time Password ), and it is also known as One Time Pin.
OTP is a type of security code (password) by which the user is authenticated as valid. This password can be used only once.
OTP is fast and secure as compared to traditional password-based authentication. And 2-Step-Authentication is done by OTP for different types of tasks. This method is a great way for both the user and the organization to check each other.
This password is generated automatically by the system, a 4-8 character special string of numbers, words, special signs, etc. This special series can be valid for 10 seconds to half an hour. After that, it becomes illegal. And this can not authenticate the user.
To authenticate the user, OTP is sent to the user both online and offline. SMS, Email, Messenger are used in digital form. And for offline, it is printed on paper at the user's address and sent by post.
Use of OTP:-
OTP is used for many tasks, including net banking. And while transacting money, OTP is sent to the mobile for confirmation.
While shopping online, OTP is sent to the mobile number while completing the payment process.
OTP message is sent to the registered mobile number while doing many tasks of daily life like buying a new SIM card.
OTP is also done by Bank, Google, Amazon, Flipkart, etc., e-commerce websites, and other digital wallet services Paytm, Freecharge to identify the correct user during login.
OTP is also used for reactivation.
For security purposes, OTP is sent to use multiple accounts on one device.
What is QR Code?
The full name of the QR Code (QR Code Full Form in Hindi) is Quick Response Code.
A QR code is a machine-readable optical barcode. In which information related to a particular item is attached. This information can be in the form of "hypertext," which the barcode reader reads.
It is faster readable than standard UPC barcode and has more memory capacity. For this reason, it is more popular and used worldwide than other barcodes.
In this barcode reader, the data of any Locator (URLs), Identifier (Person), and Tracker (a type of code) is hidden, which opens any website or mobile application.
Only standard code elements are used to encode the information in the QR Code. These standard elements include Numbers (1,2,3…), Alphanumeric (a,b,c,4,6, #, $…), Byte/Binary, and Kanji (Chinese writing characters used in Japan). are included.
The structure of a simple QR Code is like a square box. Inside which black square boxes remain on top of the white background. Which is read by an image capturing device (camera, smartphone).
Barcode readers use the Reed-Solomon code to read the QR code, which will scan the image until the correct data is reached. During this, he keeps on correcting the mistakes included in the email.
Most QR codes are black and white, but they are also generated in color. And they can also be customized according to your need.
Based on the structure and use and purpose of the QR Code, it can be divided into two categories: -
Static QR Code
Dynamic QR Code
You must be logged in to post a comment.