What is cryptography in cyber security?
Cryptography is the study of secure communications methodologies that prevents an unintended recipient of a message from reading its content. It is an information security method used to safeguard company information and communication against cyber attacks. It is one of the crucial tools for creating safe systems as it protects information from unauthorized users.
You can refer to the video given below to learn more about cryptography:
Cryptography focuses on four different functions:
Confidentiality: Only the intended receiver will be able to decrypt and read the message due to confidentiality.
Integrity: The capacity to be certain that the information contained within the message cannot be manipulated while in storage or transit is referred to as integrity.
Authenticity: Authenticity ensures that the sender and recipient can confirm each other's identities as well as the message's destination.
Non-Repudiation: Non-repudiation indicates that the communication's sender can not go back and refute their reasons for sending or creating the message in the future.
Types of cryptography:
Symmetric or Secret Key Cryptography: In symmetric or secret key cryptography, a secret key is used for both encryption and decryption.
Asymmetric or Public Key Cryptography: Asymmetric key cryptography employs a public-private key pair, with one key encrypting and the other decrypting data.
Hash Functions: This algorithm receives an arbitrary amount of data that is a credential and creates a fixed-size output of encrypted text known as a hash value, or simply "hash."
Purpose of cryptography in cyber security:
Cyber security is one of the most pressing challenges for firms competing in today's business environment. In the field of cyber security, cryptography is crucial as it allows for secure communication in the presence of malevolent third parties. There are many advantages of cryptography in cyber security, and one can secure data secrecy, safeguard data from unwanted modification, and authenticate the source of data by using cryptography properly.
The following are the advantages:
It ensures that information is kept private.
It confirms that the sender or receiver is correct.
It ensures that your data is secure.
It provides the integrity of data and information.
Final words:
Over the last few years, cryptography has become increasingly popular. It is an integral part of the digital world. You can enroll in InfosecTrain's CEH certification training course if you want to learn cryptography. You can also enroll in our Network Security and CompTIA Security+ certification courses to learn the basic concepts of cryptography.
