Modul 7 Flashcards

hash and hash functions

1
Q

what is the requirements of good hash function ?

A
  • any size of input
  • output fixed length
  • easy to get output
  • hard to reverse
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2
Q

What is collision resistance ?

A
  • hacker cannot generate two message that generate the same MD
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3
Q

what is the minimum size of MD ?

A

256

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4
Q

What is the process of a simple Hash algorithm

A
  • divide data into n-bit blocks
  • initial value of n-bit 0
  • rotate left
  • XOR previous values
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