What is cryptography

cryptography

If you use the internet, you will hear these words very often and you will have seen a feature called encryption in WhatsApp too. But maybe you do not know what it is, so do not worry, by the end of this audio lesson you will know about this topic.

In the world of the Internet, the term Encryption and Decryption is very popular. Internet is a wide network where nothing is secure, so to protect data in internet encryption technique is used. if you do not implement encryption so Anyone can hack your data and use it for the wrong things.

The process of making the message (or data) unusable or unreadable for all in which only the recipient can understand it is called Encryption. The process (or science) of creating procedures useful for encrypting and decrypting messages is called cryptography. The purpose of this process is only that the message is not decrypted (identified / read) by the suspected user insufficient time.

So what is Cryptography? The word Cryptography is derived from the Greek language word Krypto, which means "Hidden Secrets". Or in other words, it is an art in which we can protect our data and information, through Cryptography we can convert our data into Unreadable Secret Codes which are called Cipher Text, and can read this data the same. Who will have a secret key to decrypt it. Decrypt data is called plain text. There are two processes Encryption and Decryption. It is used to protect E-Mail Messages, Credit / Debit Card details, and other important information. In Encryption, Plain Text is converted to Cipher Text and in Decryption Cipher Text is converted to Plain Text. <Div class = "code-block

How does this work?

So guys when you send a message using an encrypted messaging service (for example WhatsApp), it converts the service message into code, scrambles it, and creates an encryption key. After this, only the right recipient can unlock this message. Digital encryption is extremely complex and that is why it is considered difficult to crack. To strengthen its security, every time two smartphones start communicating with each other, a new set of encryption algorithms is created.

Cryptography has two types

First Symmetric Cryptography in which the keys of Encryption and Decryption are the same means that the data or information is Encrypt and Decrypt using the same key, Second Asymmetric Cryptography in which Keys of both Encryption and Decryption are different means that Encryption in it Public key is used to do this and Private key is used to do the decryption.

Cryptography has many advantages because encryption makes your data completely secure and safe, even if it is hacked or stolen after encrypting the data, no one can access or read your data. And using encryption, your data can only be accessed by anyone who wants to allow access to it or a password will be required.