What is a significant characteristic of asymmetric encryption?

A significant characteristic of asymmetric encryption is that it utilizes a pair of keys: a public key and a private key. This method enables secure data transmission by allowing the public key to encrypt data, which can then only be decrypted by the corresponding private key. The advantage of this system is that the public key can be shared openly, allowing anyone to send encrypted messages to the key holder, while the private key remains confidential and secure on the receiver's end.

In asymmetric encryption, the keys serve different purposes: the public key is used for encryption, and the private key is used for decryption. This dual-key system enhances security and allows for functionalities like digital signatures, ensuring data integrity and authenticity.

In contrast, the other options outline key aspects of different encryption methods or processes that don't align with the characteristics of asymmetric encryption.