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Questions and Answers
What is a hash function?
What is a hash function?
- A function that encrypts data
- A function that decrypts data
- A function that takes some data and produces a digest of a fixed size (correct)
- A function that compresses data
What are the properties of a strong hash function?
What are the properties of a strong hash function?
- Deterministic, pseudorandom, one-way, slow to compute, collision-prone
- Deterministic, pseudorandom, two-way, slow to compute, collision-resistant
- Deterministic, pseudorandom, one-way, fast to compute, collision-resistant (correct)
- Random, pseudodeterministic, one-way, fast to compute, collision-resistant
What is public-key cryptography?
What is public-key cryptography?
- Cryptography based on one key only
- Cryptography based on biometric data
- Cryptography based on a password
- Cryptography based on two keys: one public key, one private key (correct)
What is the consensus mechanism used by Bitcoin?
What is the consensus mechanism used by Bitcoin?
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What will be covered in the next section?
What will be covered in the next section?
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