# Symmetric and asymmetric encryption pdf

## A Review of Asymmetric Cryptography

Information security has grown to be a colossal factor, especially with modern communication networks, leaving loopholes that could be leveraged to devastating effects. This article presents a discussion on two popular encryption schemes that can be used to tighten communication security in Symmetric and Asymmetric Encryption. In principle, the best way to commence this discussion is to start from the basics first. Thus, we look at the definitions of algorithms and key cryptographic concepts and then dive into the core part of the discussion where we present a comparison of the two techniques. An algorithm is basically a procedure or a formula for solving a data snooping problem. An encryption algorithm is a set of mathematical procedure for performing encryption on data. Through the use of such an algorithm, information is made in the cipher text and requires the use of a key to transforming the data into its original form.## Symmetric-key algorithm

Day after day, the tally of data breaches and data-tampering incidents keeps reaching new heights. This is because cyberattackers keep evolving by finding new, delicate techniques to victimize online users. Encryption is one such method to protect discreet information being transferred online. The Encryption technique is employed in two ways, namely Symmetric Encryption and Asymmetric Encryption. The roots of encryption date back to the times of the great Julius Caesar.

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Cryptographic systems are currently divided into two major fields of study: symmetric and asymmetric cryptography. While symmetric encryption is often used as a synonymous of symmetric cryptography, asymmetric cryptography embraces two primary use cases: asymmetric encryption and digital signatures. Encryption algorithms are often divided into two categories, known as symmetric and asymmetric encryption. The fundamental difference between these two methods of encryption relies on the fact that symmetric encryption algorithms make use of a single key, while asymmetric encryption makes use of two different but related keys. Such a distinction, though apparently simple, accounts for the functional differences between the two forms of encryption techniques and the ways they are used. In cryptography , encryption algorithms generate keys as a series of bits that are used for encrypting and decrypting a piece of information. The way in which those keys are employed accounts for the difference between symmetric and asymmetric encryption.

Symmetric-key algorithms [a] are algorithms for cryptography that use the same cryptographic keys for both encryption of plaintext and decryption of ciphertext.

Symmetric-key algorithm - Wikipedia

In computing, encryption is the method by which plaintext or any other type of data is converted from a readable form to an encoded version that can only be decoded by another entity if they have access to a decryption key.

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