Exam 5: Cryptography, Elliptic Curves, and Email Security

_________is the method for keeping sensitive information in email communication & accounts secure against unofficial access, loss, or compromise.

In public key cryptosystem_______ keys are used for encryption and decryption.

"In ECC, the inverse of point P =(x1, y1) is Q = (-x1, y1). "

Which of them is not a major way of stealing email information?

In Elgamal cryptosystem, given the prime p=31,What is the respective plaintext character for C = (27, 20)?

Using email hacking illicit hackers can send & spread______virus________and spam emails.

PGP system uses

Which algorithm can be used to sign a message?

A cryptographic hash function has variable output length.

There are________major ways of stealing email information.

Which of them is an example of grabbing email information?

Fraudulent email messages are some fake email messages that seem legitimate which asks for your confidential bank details such as________details and passwords.

How many real and imaginary roots does the equation y2=x3-4x have

In the elliptic curve group defined by y2= x3- 17x + 16 over real numbers, what is P + Q if P = (0,-4) and Q = (1, 0)?

Unsolicited Bulk E-mails (UBI) are called

A set of numbers is called as super increasing if

------------ is the technique used for tricking users to disclose their username and passwords through fake pages.

In the elliptic curve group defined by y2= x3- 17x + 16 over real numbers, what is 2P if P = (4, 3.464)

In a trapdoor function, the functions are easy to go in

In public key cryptosystem which is kept as public?