Encryption and decryption of a

Now yzw reading this where you are going to know that it is written bad. And this is a simple conversion while the encryption machine makes it even more complicated than this. Which makes it impossible to understand. You can understand more well from the image given below. Public key encryption is also a type of encryption.

And nowadays only public key encryption is used in almost all social media emails, messages, chat, whatsapp, then friends, there are two types of keys in this encryption. Private Key — Only you have. Public Key — which all people have. Now if we want to send a private message to a friend that only both of us can read. So for that we have to encrypt the sms, how do they understand, for example. So I will lock that sms with his public key which I have with everyone.

Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No. Any additional feedback? Big Data Expand child menu Expand. Live Project Expand child menu Expand. AI Expand child menu Expand. Toggle Menu Close. Search for: Search. It is a process of converting normal data into an unreadable form. It helps you to avoid any unauthorized access to data.

Whenever the data is sent between two separate machines, it is encrypted automatically using a secret key. The receiver of the data automatically allows you to convert the data from the codes into its original form. The only single algorithm is used for encryption and decryption with a pair of keys where each use for encryption and decryption. To create this encrypted message, encryption uses encryption algorithms — complex mathematical functions that are used to encrypt data.

If you have the encryption key, you can decrypt the ciphertext back into plaintext using an encryption algorithm and a decryption algorithm. These encryption algorithms generate encrypted messages, so they must be kept secret for them to remain secure! Decryption is the opposite of encryption. It reverses encryption and turns ciphertext back into plaintext. This can be done using a decryption algorithm, which keeps information secure by requiring a password or PIN also known as keys to decrypt data.

The encryption key is combined with an encryption algorithm to create encrypted messages that can only be decrypted using the encryption key and a corresponding decryption algorithm. The age-old battle of encryption vs decryption is as old as time. However, as technology advanced, cryptography became more sophisticated and now allows us to send sensitive information over public networks safely. Today, encryption is widely used across many industries, including banking, healthcare, government agencies, military, education, etc.

There are several forms of encryption available: symmetric, asymmetric, hybrid, and quantum. Picture courtesy of About SSL. This type of encryption method requires both parties involved in communication to share their own unique encryption keys. Symmetric encryption relies on one single shared key between sender and receiver. Once the key is exchanged, the sender sends out the plaintext along with the key.

When the recipient receives the message, they then use their own private key to decipher the message. Since both sides know the same key, nobody but the intended recipients can decode the message. Each party holds a pair of keys — one public and one private. A public key is made publicly accessible, while a private key remains hidden. Anyone wishing to send a message to another person would first generate a new random number called a nonce. Next, the sender computes two numbers from the nonce, one being the modulus and the second being the exponent.

They then take the modulus value and multiply it by the exponent value to get the final result. Finally, the sender converts the resulting number into its decimal equivalent and writes down the digits. After receiving the message, the recipient does the same process except to replace the original nonce with the received one. If the two values match up correctly, they will produce the same results when multiplied together. However, since this method generates a completely new set of numbers for every message sent, it makes it very difficult for anyone else to intercept your messages.

Hybrid encryption combines elements of both symmetric and asymmetric encryption. For example, some companies use RSA Public Key Infrastructure, where users receive certificates containing their public keys.

These certificates also contain an expiration date to know how long the certificate should be valid before expiring. The company keeps track of which certificates have expired and issues replacement ones automatically.