Question

describe the various steps included in the encryption and identification process. This process should include minimally include the handshake process (see video), key exchanges, how encryption technique are agreed upon, and the use of certificates and public keys. This topic should also address the public key infrastructure.

Answer 1

Before moving to Steps of Encryption we first know what ios encryption. Encryption is a process of conversion of any data that can't be used or understood by anyone until it decoded or say decrypted. any person or corporation have highly sensitive data which they don't want to release or leaked or anyone can get. so they use encryption to encode their sensitive data in non readable format so if anyone get their data directly or indirectly can't be able to understand. When you encrypt something, the computer will ask you to set a password. After that, no one will be able to get the data unless they have the password. so in other words This is a process of encoding data to prevent unauthorized person from viewing or modify it.

Steps Involving in Encryption of data.

Step 1: Key generation
There are two types of keys for identification of the data called as

• Private Keys
• Public Keys

These keys are mostly generated by product of huge prime numbers. these keys are of 512 bits long. The current nationally recommended length of key is 2048.

Step 2: Key Exchange

In this step the computers exchange public keys with each other on a reliable network using TCP/IP. but for security reason they never exchange Private keys.

Step 3: Encryption.

The Sending computer encrypt the secter data with the help of recieved Public keys and doing some mathematical operation. these mathematical operation are so complex i.e. computer can't reverse the process of encryption even public key can't be used for decryption.

Step 4: Sending encrypted data

Now the sender computer send the encrypted data through a network like internet.

Step 5: Decryption

Now the receiver can decrypt the message, using their private key. That's the only key in the world that can be used to decrypt the data.

The whole process of Encrytion and decryption is known as cryptography. the public key certificate is also known as the digital certificate or identity certificate which have the information of public key in the form of electronic document and it is use to show the ownership of public key. apart from the public key the digital certificate have the information of owner and the digital signature of it.

these digital signature and the information of user is used by computer to encryprt the data for specific user or machine. these certificate are generated and issued by a web trust which is certificate authority. it charge costomer for issuing certificate for them. this key certificate generation and distribution structure is well known as public key infrastructure.