Cryptography Books

Cryptography is the practice of securing communication and data from unauthorized access or modification. It is used to protect sensitive information, such as passwords, credit card numbers, and government secrets. Cryptography uses mathematical algorithms to encode information, making it unintelligible to anyone who does not have the key to decrypt it. In this article, we will explore the basics of cryptography and how it is used to secure information.

History of Cryptography

The history of cryptography can be traced back thousands of years, with early examples found in ancient civilizations like Egypt and Greece. Cryptography was used primarily for military and diplomatic purposes, with important messages encoded to prevent interception by enemy forces. In modern times, cryptography has become more advanced, with digital encryption and decryption techniques that allow for secure online transactions and communication.

Encryption and Decryption

Encryption is the process of converting plaintext, or readable information, into ciphertext, or coded information. This is done using a mathematical algorithm, known as a cipher. Decryption is the process of converting ciphertext back into plaintext using the same algorithm and a secret key.

Types of Ciphers

There are two main types of ciphers: symmetric and asymmetric. Symmetric ciphers use the same key for both encryption and decryption, while asymmetric ciphers use different keys for encryption and decryption.

Examples of symmetric ciphers include the Data Encryption Standard (DES) and the Advanced Encryption Standard (AES). Examples of asymmetric ciphers include the Rivest-Shamir-Adleman (RSA) algorithm and the Elliptic Curve Cryptography (ECC) algorithm.

Public Key Cryptography

Public key cryptography, also known as asymmetric cryptography, is a type of encryption that uses two keys: a public key and a private key. The public key can be freely shared with others, while the private key is kept secret. Information encrypted with the public key can only be decrypted with the private key, and vice versa. Public key cryptography is commonly used in secure online transactions, such as online banking and e-commerce.

Hash Functions

Hash functions are another important tool in cryptography. They are used to create a fixed-length, unique digital fingerprint of a message or piece of data. Hash functions are commonly used for digital signatures, password storage, and data integrity checking.

Cryptography is an essential part of modern communication and data security. With the increasing amount of sensitive information being transmitted online, cryptography has become more important than ever before. By understanding the basics of encryption, decryption, ciphers, public key cryptography, and hash functions, anyone can gain a better understanding of how cryptography works and why it is so important. By using cryptography to secure our information, we can help protect ourselves and our data from malicious attackers. The topics and subject you will find in the app are given below
Classic cryptography
Cryptanalysis
Cryptographic Hash Functions
Cryptosystems
Early computer-era cryptography
Lightweight cryptograpy
Modern cryptography
Public-key cryptography
Symmetric-key cryptography
Types of crypto