Public key cryptography is also known as _________ cryptography.

Answer: Option C

Public key cryptography is also known as Asymmetric cryptography. Asymmetric cryptography, also known as public key cryptography, uses public and private keys to encrypt and decrypt data. The keys are simply large numbers that have been paired together but are not identical (asymmetric). One key in the pair can be shared with everyone; it is called the public key.