What is a key in cryptography?

A key in cryptography is a piece of information, usually a string of numbers or letters that are stored in a file, which, when processed through a cryptographic algorithm, can encode or decode cryptographic data.

What is the difference between public key cryptography and symmetric cryptography?

With public key cryptography, only the private key must be kept secret , but with symmetric cryptography, it is important to maintain the confidentiality of the key. Kerckhoff's principle states that the entire security of the cryptographic system relies on the secrecy of the key.

What is cryptography in Computer Science?

In computer science, cryptography is the collection of secure information and communication techniques employing mathematical concepts and algorithms used to disguise the content of messages. What are the three types of cryptography?

What are the different types of cryptography?

There are two main types of cryptography used for digital data and secure messages today: symmetric cryptography and asymmetric cryptography. Hash functions, a third type, doesn’t involve use of a key. Symmetric cryptography: This is one of the most commonly used and simplest forms of encrypting and decrypting electronic data.