Practice Hash Functions (1.3) - Cryptography and Data Protection

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9 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a hash function?
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Think about data transformation.
Question 2.
Name one commonly used hash function.
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What hash function can you name?
3Question 3.
What is a hash function primarily used for?
- Confidentiality
- Integrity
- Authentication
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Think of the primary role of a hash in data processes.
4Question 4.
True or False: Hashing can be reversed to find the original data.
- True
- False
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Consider the one-way nature of hashing.
Question 5.
You have a dataset containing sensitive information, and you need to ensure it remains confidential and also verify its integrity. What measures would you take to accomplish this using both hashing and encryption?
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Consider the application of both concepts within data security.
Question 6.
Explain the risks associated with using SHA-1 instead of SHA-256 for new projects. Provide reasoning behind your answer.
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Think about the lifecycle and longevity of hash functions, and historical vulnerabilities.

5 more questions in this section. Enroll free to practise them all.