Which statement correctly describes RSA?

RSA (Rivest-Shamir-Adleman) is an asymmetric encryption algorithm. This means it uses a pair of mathematically linked keys: a public key for encryption and a private key for decryption. The public key can be freely shared, while the private key must be kept secret. This key pair design is fundamental to asymmetric cryptography. The option "It uses preshared keys for encryption" is incorrect because preshared keys are characteristic of symmetric encryption, where the same key is used for both encryption and decryption. "It is a symmetric decryption algorithm" is incorrect because RSA is asymmetric and primarily known as an encryption algorithm, though it also performs decryption. "It requires both sides to have identical keys for encryption" is incorrect; identical keys are used in symmetric encryption, not asymmetric.