問題文
A loyalty number has to be stored so that a landing page can read the original value back later. Which implementation fits, given that the value stays inside the platform?
選択肢
- Write it with the symmetric encryption function and read it with the matching decryption function, referencing the entries defined in Key Management for the password, the initialization vector, and the salt.
- Write it with the encoding function of the text form and read it with the matching decoding function, referencing the entries defined in Key Management for the charset, the padding, and the line width.
- Write it with the hashing function of the longer digest and read it with the matching reversal function, referencing the entries defined in Key Management for the digest, the seed, and the rounds.
- Write it with the token generating function of the signed form and read it with the matching parsing function, referencing the entries defined in Key Management for the issuer, the audience, and the expiry.