Learn the contribution of code to data security!

 

Hope everybody is well. Today I have brought for you a short tune about the contribution of code in data security. I hope you like it.

Many times we have to transfer confidential data by public way. Today's post is about how we will transfer data then. Let's get started.

Data Encryption:

Encryption is a special process of encoding messages, data or information so that no one can read or understand it without permission.

As a result, messages or data or information become incomprehensible to unauthorized people. All confidential data that is transmitted by the public path of the communication network is usually encrypted and sent through a special code. That is, the data is encrypted to protect the privacy of the data.

As a result, no other unspecified person or organization can use that data.

When encrypting source or sender data, the recipient or destination decrypts the encrypted data before use. The sender needs to know the rules to encrypt and the recipient needs to know how to decrypt.
Encrypted data is decrypted using the same method or algorithm and converted to the original message. An example is the Caesar code.

Caesar Code:

Caesar's code consists of English letters.

In this method of data encryption, a character is replaced by its next 3rd character.

For example- D instead of A, E instead of B, F instead of C, B instead of Y and C instead of Z etc. Here again the letters have to be taken from the beginning.

To give an excellent example, it can be said that my name is TANZIN PRODHAN 's Caesar code is WAQCLQ SURGKPQ.

The encryption method consists of four main parts. E.g.

1) Plaintext: A pre-encrypted message that is readable by humans.

2) Ciphertext: Encrypted message that is not readable by humans.
3) Encryption algorithm : Mathematical formula that is required to encrypt from plaintext to ciphertext or decrypt from ciphertext to plaintext.
4 ) Key: The secret code that is needed to encrypt or decrypt.
The main purpose of encryption is to make it difficult for hackers to read any copy of data from within the network.

For that, you have to adopt the appropriate encryption method. Encrypted data must be decrypted at the destination. In that case there must be decryption at the destination.

Two types of encryption are commonly used today. E.g. -

1. Secret Key Encryption: Here a common or shared key is usually used for encryption and destination decryption from the sender's location.
2. Public Key Encryption: When someone wants to encrypt a message, they use an encryption key and the recipient will decrypt it using another key.

There are various methods of encrypting data. E.g.

1. Caesar code
2. Data Encryption Standard (DES)
3. International Data Encryption Algorithms (IDEA )

The Caesar code has been used since the time of the Roman emperor Julius Caesar . The most widely used encryption method is the Data Encryption Standard, invented by the American National Bureau of Standards (NBS).

So friends this was today's post. If you like it, don't forget to give Jose. If you have comments, don't forget to know in post. Thanks for staying with me for so long.