Asymmetric encryption is a cryptographic method that uses a pair of keys—a public key and a private key—for secure data encryption and decryption. The public key, which can be shared openly, is used to encrypt the data, while the private key, which is kept secret, is used to decrypt it. This approach ensures that even if the public key is known to others, only the holder of the corresponding private key can decrypt the information. Asymmetric encryption is widely used in secure communications, digital signatures, and authentication processes, providing robust security for data transmission over untrusted networks.