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What is encryption and decryption

by Sudhir kumar

You must have heard about Encryption before too, but do you know what this encryption is technically and how it works, etc. To implement sensitive information, a system needs both secrecy and privacy to implement.

A system of completely unauthorized access Can not stop during the transmission of media. Data tampering through which intentional data is deliberately modified, through an unauthorized channel. This is not a new issue, nor is it unique. a computer for the era.

By changing the information, it can be protected from unauthorized access which only the authorized receiver can understand. The method used to do this thing is called encryption and decryption. Both of this Encryption And Decryption The main difference in what is there is that the message can be converted into Encryption in a very unintelligible form which cannot be understood without decrypt.

Decryption means the process by which the original message is recovered from encrypted data. So today I thought why should you give full information about what encryption is, so that you too are aware of this process. So let’s start without delay.

What is encryption

Encryption There is a process in which sender transforms the original message into an unintelligible form and then it is sent to another place through the network.

In it sender an encryption algorithm And a key Is required so that it converts plaintext (original message) into ciphertext (encrypted message), this process is called enciphering.

A plaintext is data that is protected during transmission. This ciphertext is a type of scrambled text that produces an outcome-like encryption algorithm and for which a specific key is used. It is not ciphertext shielded.

It only flows above the transmission channel. these encryption algorithms One of a kind cryptographic algorithm That takes plain text and an encryption key on the input side and produces a ciphertext in the output.

While talking about traditional encryption methods, both encryption and decryption keys are the same and secret too. These conventional methods are broadly divided into two classes: Character level encryption and Bit level Encryption.

  • Character – level Encryption – In this method, encryption is performed in the character level. Two common strategies used for Character Level Encryption are Substitutional and Transpositional.
  • Bit-level Encryption – In this method, first data (Eg text, graphics, audio, video, etc.) Is divided into blocks of bits, then they are modified with many techniques such as encoding / decoding, permutation, substitution, exclusive OR, rotation, etc.

How to remove encryption?

Decryption is used to remove encryption. Let’s understand what this decryption is. Decryption is a process that invert the entire encryption process.

With the help of this process, the encrypted message is once again brought back to its real form. In this, the receiver uses a decryption algorithm and a key to convert the ciphertext back to the original plaintext, a process called deciphering.

A mathematical process that is used to decryption generates the original plaintext according to the outcome of a given ciphertext and the decryption key is then Decryption algorithm Is called This is the reverse process of the process encryption algorithm.

Keys that are used for encryption and decryption can be similar or dissimilar. It depends on which type of cryptosystems are being used (ie, Symmetric key encryption and Asymmetric key encryption).

What is decryption?

Decryption is a process in which encoded / encrypted data is converted into a forum that is easily understood by us humans or by computers. To perform this process, the text is manually or un-encrypting with the help of keys.

When was the Network Encryption System started?

Network encryption system The beginning of the year 1970 Was from Network Encryption is also called network layer or network-level encryption. It is a network security process that uses crypto services in the network transfer layer that data link is above the level, below the application level. These network transfer layers are layers 3 and 4 of an Open Systems Interconnection (OSI) reference model.

These layers are responsible for connectivity and routing between two endpoints. Using existing network services and application software, network encryption is completely invisible to the end user and they operate independently, no matter what encryption process you use. Data is encrypted only during transit and stays according to the plaintext originating and receiving hosts.

What is the difference between encryption and decryption?

By the way, Encryption and Decryption are complementary to each other. But in their process, in features and functions, these two are completely different. So let’s know about the difference between these two.

BASIS OF COMPARISON ENCRYPTION DECRYPTION
Basic In this, the message understood by humans is converted into an unintelligible and obscure form that cannot be interpreted. Its opposite is the opposite, which is that the unintelligible message is converted into a comprehensible form that can be easily understood by humans.
Where is this process Sender’s end Receiver’s end
Function In this, plaintext is converted to ciphertext. In this, ciphertext is converted to plaintext.

what did you learn today

I hope i got you What is encryption Gave full information about and I hope you people have come to understand about Encryption.

If you have any doubts about this article or you want that there should be some improvement in it, then for this you can write down comments. With these ideas, you will get a chance to learn something and improve something.

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