How is cryptography used in digital communication?

Cryptography plays a crucial role in digital communication by ensuring secure and private transfer of information over networks. It utilizes complex algorithms to convert plain text messages into unintelligible ciphertext, making it nearly impossible for unauthorized individuals to intercept or decipher the communication. Cryptographic techniques such as symmetric key encryption, asymmetric key encryption, and digital signatures are employed to protect confidentiality, integrity, and authenticity. Symmetric key encryption involves using a shared secret key between the sender and recipient to both encrypt and decrypt the message. Asymmetric key encryption uses a pair of keys: a public key for encryption and a private key for decryption. Digital signatures verify the authenticity of a message and protect against tampering by using public-key cryptography. By utilizing these cryptographic techniques, digital communication is made secure, enabling individuals and organizations to trust the confidentiality and integrity of their exchanged information.

This mind map was published on 5 October 2023 and has been viewed 50 times.