A Public Key Encryption involves:

Group of answer choices

The use of a public and a private key for encryption and decryption

The use of two different public encryption standards within a single block of data

The use of three encryption keys one over the other to create three security envelopes

The use of a $128$ bit publicly available encryption standard to create a symetric single key encryption format

The use of two different notes of sound to scramble and unscramble data