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Computer Science CyberSecurity problem. Please help me figure out, will give upvote. Many thanks! Bloom Filters: Students at Some State University (SSU) select very bad
Computer Science CyberSecurity problem. Please help me figure out, will give upvote. Many thanks!
Bloom Filters: Students at Some State University (SSU) select very bad passwords. The system administrator decided to use a Bloom Filter to prevent students from using the passwords "cat, dog, fish, and bear". The Bloom Filter uses 3 hash functions (H1, H2, H3) and 10 bits in the hash table. When the hash functions are applied to the prohibited passwords, the results are H1(cat) 8 H1(dog) 1 H1(fish) 2 H1 (bear)2 Question 1A) Show the resulting Bloom Filter by marking each bit as either 0 or 1 H3(cat) 2 H3(dog) 1 H3(fish)2 H3(bear)1 H2(cat)1 H2(dog) 9 H2(fish)8 H2(bear)4 Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Bit 8 Bit 9 A student selects the password "mouse". Note this not a prohibited password. Before the password is accepted, it will be checked against the Bloom Filter. Hash functions H1 and H2 are applied to "mouse" and the results are H1 (mouse)4 Question 1B: List one value for H3(mouse) that would cause the "mouse" to be rejected as a password or explain why no value of H3(mouse) could cause this. Question 1C: List one value for H3(mouse) of H3(mouse) that would cause the "mouse" to be accepted as a password or explain why no value of H3(mouse) could cause this. H2(mouse)-8 H3(mouse)
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