Question

Which of the following statements is/are true (For cryptography) ?

1.SET and IPSec are cryptography protocols.

2.Receiver decrypts the message using their private key.

3.Sender gets receiver's public key from databse.

4.All of the above.

..with reason ​

Answer 1

The correct statement is - Receiver decrypts the message using their private key.

• Only IPSec is a series of services and security protocols based on cryptography securing communication between devices moving traffic via an untrusted network.
• A single key is shared for private key encryption devices. To encrypt the direct note, the sender employs the private key and the receiver decrypts it with the comparable one. Both must keep the key private for a confidential communication.
• Via some secure source, sender receives the public key. The recipient sends the public key on same channel as one the message is intended to receive, but a trusted external party to verify key's validity.

Answer 2

Answer:

I think the correct answer is no .2 ...