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 cannot prevent completely unauthorized access during the transmission of media. Data tampering, in which intentional data is deliberately modified, through an unauthorized channel. This is not a new issue, nor is it unique to the computer era.
By changing the information, it can be protected from unauthorized access which only the authorized receiver can understand. The method wont to do that thing is named encryption and decryption. The main difference between these two Encryption and Decryption is that the message is often converted into Encryption during a very unintelligible form that can’t be understood without decrypt.
Decryption means the method by which the first message is recovered from encrypted data. So today i assumed why do you have to give full information about what encryption is, in order that you too are conscious of this process. So let’s start at once .
What is encryption?
Encryption may be a process during which the sender converts the first message into an unintelligible form then it’s sent to a different place through the network.
In this, the sender needs an encryption algorithm and a key in order that converts plaintext (original message) into ciphertext (encrypted message), this process is named enciphering.
A plaintext is a data that is protected during transmission. This ciphertext may be a sort of scrambled text that produces an outcome-like encryption algorithm and that a selected key’s used. It is not ciphertext shielded.
It only flows above the transmission channel. This encryption algorithm is a type of 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 at the character level. Two common strategies used for Character Level Encryption are Substitutional and Transpositional.
- Bit-level Encryption – In this method, first data (such as 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.
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.