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What should you know about cryptography? Its features and types

cryptography
Table of Contents

Cryptography is the science with deals with securing the communication channels from external threats. It enables the user to store, transmit and receive sensitive information without compromising the sensitivity of the information. It ensures that the data is readable only to the receiver. Cryptography is the art of sending secret messages to the recipient. Cryptanalysis focuses on the methods used to decrypt the encrypted messages. Cryptology is the science that involves the study of cryptography and cryptanalysis. Modern communication channels use the concepts of cryptology. This helps to ensure that the sensitive information in the communication channels is secured from external threats such as hackers.

History of Cryptography

The concept of cryptography has been in application for thousands of years. The historical cryptography methods enable the students to understand modern methods. The history of cryptography is as follows:

  • Ancient and Medieval Cryptography: This type of cryptography focuses on the reliance on mathematical concepts. The procedures use high-level factorisation methods, which took a long time to decrypt. In this method, the simple message is converted into complex strings of encrypted codes in which only the receiver and the sender have the related cypher messages. The sender and receiver use the data string key to encrypt and decrypt the data.
  • There are two techniques for ancient cryptography.

Symmetric Cryptography: The receiver and sender use the same key for data transmission

Asymmetric Cryptography: The sender uses the public key to encrypt data. The receiver uses a private key to decrypt the same data.

For one time encryption, it is a useful method. These methods dont require a computer. These methods are not applicable for large scale usage.

  • Cryptography in the 18th and 19th centuries: In wars, these methods were employed. Mechanical machines acted as ciphers to encrypt the data. Miliary uses decryption codes for communication. Theft of these codes compromises data security.
  • Modern Cryptographic methods: Modern methods use the concepts of quantum mechanics. You can use different methods for data security. It uses photons as an optimal link to transmit the data. These methods are virtually not hackable. They are simple to use. Less amount of resources is required to operate them.

Why do students hire academic writers?

Cryptography is a popular subject among students. For their academic projects, students look for assistance with essay writing services. Many organisations provide academic assistance to students for their projects.

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Many students have availed the services of this assignment writing help and have gained fruitful results for their academic projects. Students who are struggling to complete their academic projects should consider visiting the websites of these organisations.

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