Answer:
huwugsgssuaihsux h baiThatha svaadishht us
Answer B: Asymmetric cryptography, because the receiver has its own decryption key and cannot create encrypted messages, because he doesn't have the encryption key.
About the other answers:
A: Private keys are always involved, there has to be some secret to do encryption, so this answer doesn't say very much.
C: Digital signatures can be used to verify/prove some data comes from some person (the signer) in an unaltered way. It is not about encryption, so is not about the security of your message. You use it in combination with encryption.
D: Like A, this doesn't say very much. Shared secret keys (symmetric keys) can be used for encryption, but they are less secure since the keys have to exist in more than one place (sender and receiver).
<span>In object-oriented approach, functions used to carry out subtasks are also called "helper" functions, because they are usually used by other functions in the object to complete "sub-tasks". Functions are also known as â€methods’. When the task to be carried out by an object is complicated, it is preferable to break it into subtasks or subroutines. It is accomplished by helper functions. They may or may not accept data and may or may not return a value.</span>
Answer:
Ransomware
Explanation:
Just as its name implies, you have to pay a 'ransom' to get a locked file that belongs to you
