Reading assignment: Hashing

Blockchain and Bitcoin 101
#886

What is the hashing algorithm called used in Bitcoin? SHA-256 is the algorithm used

Why is this hashing algorithm really hard (almost impossible) to brute-force? Because it would take about four human generations to break it

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#887

  1. What is the hashing algorithm called used in Bitcoin?
    SHA-256

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    The potential amount of attempts required to guess the correct password is inefficient and could take a large amount of time

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#888

  1. SHA-256 algorithm

  2. Not impossible, but very highly unlikely, a brute-force method would take far too much time (much more than that of the universe existing) to guess. This is due to the fact that no matter how small or large (in terms of size of input) the output will always be the same length. Also, even if one slight difference from the original input (i.e. a capital letter rather than a lower-case) the output would differ significantly

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#889

Secure Hashing Algorithm 256 “SHA-256”

There would literally be almost no end to the computing of finding an SHA-256 output using Brute Force Method. The likelihood of finding the output would be astronomically small.

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#890
  1. BTC uses secure hashing algorithm 256 (SHA-256)
  2. Due to the SHA producing 256 bit results, it would be infeasible to match this to the input data.
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#891

SHA-256

Because SHA 256 hash has 2^256 different possibilities. 2^256 is a 78 digit number. Although no hash function is collision free, but this would take so long to find a collision.

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#892

1: SHA-256

2: Because you would manually have to go through all the inputs one by one, hash one at a time and compare the output with the target hash. This would basically take way too long for it to be of any significance.

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#893

SHA-256
It takes too long and is probably not worth the effort.

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#894

1- sha-256
2- high-min entropy

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#895

The hashing algorithm used in Bitcoin is SHA-256.

Because there is so many possibilities that it would take tremendous computation power and time to randomly guess it.

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#896

  1. The hashing algorithm used in Bitcoin is called SHA-256 (Secure Hashing Algorithm - 256bit)

  2. SHA-256 is almost impossible to brute-force due to the fact that one would need to randomly keep hashing inputs and compare them to the output to find a match. This process would take an extremely long time therefore making it virtually impossible to brute-force.

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#897
  1. SHA256
  2. Each unique input produces a unique output hash so called digital fingerprints. SHA256 is a one way function; it’s nearly impossible to guess the input hash by decoding the output.
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#898
  • What is the hashing algorithm called used in Bitcoin?

SHA256

  • Why is this hashing algorithm really hard (almost impossible) to brute-force?
    it would take enormous amount of time to solve it by brute force and chances to do it that way are minimal.
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#899

  1. What is the hashing algorithm called used in Bitcoin?
    SHA-256

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    Because of the mathematical complexity required to find the values to solve the puzzle.

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#900

  1. What is the hashing algorithm called used in Bitcoin?
    The hashing algorithm used in Bitcoin is called SHA-256.

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    This hashing algorithm is almost impossible to brute force because the chances of you finding the desire output is astronomically low being that there are 2^256 different possibilities.

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#901

  1. Secure Hashing Algorithm 256 - SHA-256

  2. Because of its third property: Pre-Image Resistance where it is infeasable to determine the input through the output hash. For brute-force method it would take that long time that it does not matter (very huge number).

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#902

  1. What is the hashing algorithm called used in Bitcoin?
    SHA-256

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    Because you have to pick up a random input, hash it and then compare the output with the target hash and repeat until you find a match.

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#903

  1. What is the hashing algorithm called used in Bitcoin?
    SHA-256 is the hashing algorithm used in Bitcoin.

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    The number of possibilities is large and infeasible to crack with brute force.

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#904

What is the hashing algorithm called used in Bitcoin?
SHA-256
Why is this hashing algorithm really hard (almost impossible) to brute-force?
One input creates one output 256 length. So find another input that creates the same output is something almost impossible to do.

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#905

SHA-256

Brute-force is infeasible because of the amount of computations needed to locate a collision with the SHA-256 function.

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