Bitcoins' blockchain is using the SHA-256 hash function. What method does it use to convert an arbitrary-length input to a fixed length before applying the hashing. Answers: It iteratively compresses the input. It applies a discrete fourier transform on the input. It truncates the input to reach the desired length. It removes the least significant bits of the input. It's padding the input with zeros to reach the desired length.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Bitcoins' blockchain is using the SHA-256 hash function. What method does it use to convert an arbitrary-length input to a fixed length
before applying the hashing.
Answers:
It iteratively compresses the input.
It applies a discrete fourier transform on the input.
It truncates the input to reach the desired length.
It removes the least significant bits of the input.
It's padding the input with zeros to reach the desired length.
Transcribed Image Text:Bitcoins' blockchain is using the SHA-256 hash function. What method does it use to convert an arbitrary-length input to a fixed length before applying the hashing. Answers: It iteratively compresses the input. It applies a discrete fourier transform on the input. It truncates the input to reach the desired length. It removes the least significant bits of the input. It's padding the input with zeros to reach the desired length.
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