Which of the following is true about Asymmetric Cryptography?

Asymmetric cryptography is characterized by the use of a public and private key pair, which is fundamental to its security model. In this system, one key (the public key) is used for encryption, and the other (the private key) is used for decryption. This dual-key mechanism allows for secure communications, where anyone can encrypt a message using the public key, but only the owner of the corresponding private key can decrypt it. This ensures that sensitive information remains confidential and allows for authentication, as the private key can be used to sign messages, verifying the identity of the sender.

This method has several advantages over symmetric cryptography, including the ability to share the public key widely without compromising security, thereby facilitating secure communication in scenarios where the sharing of a secret key would be impractical.