Many people do not want to use long passwords as they are hard to remember. Mr. A gets to know that pseudorandom number generator can "expands short random numbers into long pseudorandom numbers". So he decides to choose an 8 bits number s (which is two bytes) and uses a PRG to generate his password p, an 128-bit string (he pads all 0’s to s to get the input that has proper input length of the PRG). He keeps s secret and generates p whenever he needs it. He feels that p is pseudorandom and thus unbreakable to any practical attacker. As an attacker, do you think what Mr. A did is secure? Give your reason.

Answer rating: 100% (QA)

NO PRG cannot be used to generate strong password because it can be attacked ... View the full answer