Question 1 |

Avalanche effect in cryptography refers

Large changes in cipher text when the keyword is changed minimally | |

Large changes in cipher text when the plain text is changed | |

Large Impact of keyword change to length of the cipher text | |

None of the above |

Question 1 Explanation:

Question 2 |

In a columnar transportation cipher, the plain text is "the tomato is a plant in the night shade family", keyword is "TOMATO". The cipher text is

"TINESAX / EOAHTFX / HTLTHEY / MAIIAIX / TAPNGDL / OSTNHMX" | |

"TINESAX / EOAHTFX / MAIIAIX / HTLTHEY / TAPNGDL / OSTNHMX" | |

"TINESAX / EOAHTFX / HTLTHEY / MAIIAIX / OSTNHMX / TAPNGDL" | |

"EOAHTFX / TINESAX / HTLTHEY / MAIIAIX / TAPNGDL / OSTNHMX" |

Question 2 Explanation:

Question 3 |

In an RSA cryptosystem, the value of the public modulus parameter n is 3007. If it is also is known that \phi(n)=2880, where \phi() denotes Euler's Totient Function, then the prime factors of n which is greater than 50 is _________ .

71 | |

83 | |

97 | |

91 |

Question 3 Explanation:

Question 4 |

Which one of the following algorithm is not used in asymmetric key cryptography?

RSA Algorithm | |

Gillie-Hellman Algorithm | |

Electronic Code Book Algorithm | |

None of the above |

Question 4 Explanation:

Question 5 |

What is one advantage of setting up a DMZ (Demilitarized Zone) with two firewalls?

You can control where traffic goes in the three networks | |

You can do statefull packet filtering | |

You can do load balancing | |

Improve network performance |

Question 5 Explanation:

There are 5 questions to complete.